{"id":91472,"date":"2025-01-06T05:35:44","date_gmt":"2025-01-06T02:05:44","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/"},"modified":"2025-01-06T05:35:44","modified_gmt":"2025-01-06T02:05:44","slug":"%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/","title":{"rendered":"\u0627\u0644\u06af\u0648\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 HRR React &#8211; \u0627\u0646\u062c\u0645\u0646 DEV"},"content":{"rendered":"<div data-article-id=\"2190466\" id=\"article-body\">\n<p>\u062f\u0631 \u0632\u06cc\u0631 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0645\u062e\u062a\u0635\u0631\u06cc \u0628\u0631\u0627\u06cc <strong>\u0646\u062a\u06cc\u062c\u0647 \u0631\u0646\u062f\u0631 \u0647\u0648\u06a9 (HRR)<\/strong> \u0627\u0644\u06af\u0648\u060c \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0645\u062b\u0627\u0644 \u06cc\u06a9 \u0642\u0644\u0627\u0628 \u0633\u0641\u0627\u0631\u0634\u06cc \u0628\u0647 \u0646\u0627\u0645 <code>useFetchUsers<\/code>. \u0647\u062f\u0641 \u0627\u06cc\u0646 \u0633\u0646\u062f \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0634\u0645\u0627 \u0631\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0627\u06cc\u062f\u0647 \u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0631\u0627\u0647\u0646\u0645\u0627\u06cc\u06cc \u06a9\u0646\u062f: <strong>\u0686\u06cc<\/strong> \u0627\u0644\u06af\u0648 \u0627\u06cc\u0646 \u0627\u0633\u062a\u060c <strong>\u0686\u0631\u0627<\/strong> \u0645\u0641\u06cc\u062f \u0627\u0633\u062a\u060c \u0648 <strong>\u0686\u06af\u0648\u0646\u0647<\/strong> \u062a\u0627 \u0622\u0646 \u0631\u0627 \u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u06a9\u062f \u062e\u0648\u062f \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u062f.<\/p>\n<hr\/>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u062a\u063a\u06cc\u06cc\u0631 \u0648\u0636\u0639\u06cc\u062a \u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D9%86%D9%85%D8%A7%DB%8C_%DA%A9%D9%84%DB%8C\" >\u0646\u0645\u0627\u06cc \u06a9\u0644\u06cc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D9%82%D8%A8%D9%84_%D9%88_%D8%A8%D8%B9%D8%AF\" >\u0642\u0628\u0644 \u0648 \u0628\u0639\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D8%B3%D9%87_%D9%81%D8%A7%DB%8C%D9%84\" >\u0633\u0647 \u0641\u0627\u06cc\u0644<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#1_%D9%82%D9%84%D8%A7%D8%A8_%D8%B3%D9%81%D8%A7%D8%B1%D8%B4%DB%8C\" >1. \u0642\u0644\u0627\u0628 \u0633\u0641\u0627\u0631\u0634\u06cc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D9%86%DA%A9%D8%A7%D8%AA_%DA%A9%D9%84%DB%8C%D8%AF%DB%8C\" >\u0646\u06a9\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#2_Hook_Render_Result_Helper\" >2. Hook Render Result Helper<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D9%86%DA%A9%D8%A7%D8%AA_%DA%A9%D9%84%DB%8C%D8%AF%DB%8C-2\" >\u0646\u06a9\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#3_%D9%81%D8%A7%DB%8C%D9%84_%D8%AA%D8%B3%D8%AA\" >3. \u0641\u0627\u06cc\u0644 \u062a\u0633\u062a<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D8%B1%D8%A7%D9%87_%D8%A7%D9%86%D8%AF%D8%A7%D8%B2%DB%8C\" >\u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D9%86%D8%AA%DB%8C%D8%AC%D9%87_%DA%AF%DB%8C%D8%B1%DB%8C_%D8%A7%D9%84%DA%AF%D9%88\" >\u0646\u062a\u06cc\u062c\u0647 \u06af\u06cc\u0631\u06cc \u0627\u0644\u06af\u0648<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D9%85%D8%AF%DB%8C%D8%B1%DB%8C%D8%AA_%D9%85%D9%86%D8%B7%D9%82_Async_%D8%AF%D8%B1_Helper_%D8%B4%D9%85%D8%A7\" >\u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u0646\u0637\u0642 Async \u062f\u0631 Helper \u0634\u0645\u0627<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#1_%D8%AA%D9%85%D8%A7%D8%B3_Async_%E2%80%9C%D9%87%D9%85%D9%87_%D8%AF%D8%B1_%DB%8C%DA%A9%E2%80%9D\" >1. \u062a\u0645\u0627\u0633 Async &#8220;\u0647\u0645\u0647 \u062f\u0631 \u06cc\u06a9&#8221;.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#2_%D8%AA%D9%85%D8%A7%D8%B3_Async_%C2%AB%D8%B4%D8%B1%D9%88%D8%B9%C2%BB_%D8%B1%D8%A7_%D8%AF%D8%B1_%D9%85%D9%82%D8%A7%D8%A8%D9%84_%C2%AB%D9%BE%D8%A7%DB%8C%D8%A7%D9%86%C2%BB_%D8%AA%D9%82%D8%B3%DB%8C%D9%85_%DA%A9%D9%86%DB%8C%D8%AF\" >2. \u062a\u0645\u0627\u0633 Async \u00ab\u0634\u0631\u0648\u0639\u00bb \u0631\u0627 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u00ab\u067e\u0627\u06cc\u0627\u0646\u00bb \u062a\u0642\u0633\u06cc\u0645 \u06a9\u0646\u06cc\u062f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#3_%D8%A2%D8%B2%D9%85%D8%A7%DB%8C%D8%B4_%DB%8C%DA%A9_%D8%AA%D8%A7%D8%A8%D8%B9_%D8%AE%D8%A7%D9%84%D8%B5_%D8%A8%D9%87_%D8%B7%D9%88%D8%B1_%D8%AC%D8%AF%D8%A7%DA%AF%D8%A7%D9%86%D9%87\" >3. \u0622\u0632\u0645\u0627\u06cc\u0634 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062e\u0627\u0644\u0635 \u0628\u0647 \u0637\u0648\u0631 \u062c\u062f\u0627\u06af\u0627\u0646\u0647<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D8%A7%D8%B2_%DA%A9%D8%AF%D8%A7%D9%85_%DA%AF%D8%B2%DB%8C%D9%86%D9%87_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%DA%A9%D9%86%DB%8C%D9%85%D8%9F\" >\u0627\u0632 \u06a9\u062f\u0627\u0645 \u06af\u0632\u06cc\u0646\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645\u061f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/nabfollower.com\/blog\/%d8%a7%d9%84%da%af%d9%88%db%8c-%d8%a2%d8%b2%d9%85%d8%a7%db%8c%d8%b4-hrr-react-%d8%a7%d9%86%d8%ac%d9%85%d9%86-dev\/#%D8%A7%D9%81%DA%A9%D8%A7%D8%B1_%D9%86%D9%87%D8%A7%DB%8C%DB%8C\" >\u0627\u0641\u06a9\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%D9%86%D9%85%D8%A7%DB%8C_%DA%A9%D9%84%DB%8C\"><\/span>\n<p>  \u0646\u0645\u0627\u06cc \u06a9\u0644\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0646\u06af\u0627\u0645 \u0622\u0632\u0645\u0627\u06cc\u0634 \u06cc\u06a9 React Hook \u0633\u0641\u0627\u0631\u0634\u06cc (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c <code>useFetchUsers<\/code>)\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0628\u0647 \u06a9\u062a\u0627\u0628\u062e\u0627\u0646\u0647 React Testing \u0648 \u0622\u0646 \u062a\u06a9\u06cc\u0647 \u06a9\u0646\u06cc\u0645 <code>renderHook<\/code> API. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u067e\u0633 \u0627\u0632 \u0631\u0646\u062f\u0631 \u06a9\u0631\u062f\u0646 \u0642\u0644\u0627\u0628\u060c \u0634\u0645\u0627 \u0627\u063a\u0644\u0628 \u062f\u0631 \u067e\u0627\u06cc\u0627\u0646 \u062a\u0645\u0627\u0633 \u0645\u06cc \u06af\u06cc\u0631\u06cc\u062f <code>result.current<\/code> \u0648 \u0628\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u062f\u0633\u062a\u06cc \u0639\u0645\u0644\u06cc\u0627\u062a \u062e\u0627\u0635 \u062f\u0631 <code>act()<\/code>. \u0627\u06cc\u0646 <strong>\u0627\u0644\u06af\u0648\u06cc HRR<\/strong> \u0627\u06cc\u0646 \u0627\u0642\u062f\u0627\u0645\u0627\u062a \u0631\u0627\u06cc\u062c \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0634\u06cc\u0621 \u06a9\u0645\u06a9\u06cc \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0645\u062a\u0645\u0631\u06a9\u0632 \u0645\u06cc \u06a9\u0646\u062f \u062a\u0627 \u0622\u0632\u0645\u0627\u06cc\u0634\u0627\u062a \u0634\u0645\u0627 \u062a\u0645\u06cc\u0632\u062a\u0631 \u0648 \u06af\u0648\u06cc\u0627\u062a\u0631 \u0628\u0627\u0642\u06cc \u0628\u0645\u0627\u0646\u0646\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%D9%82%D8%A8%D9%84_%D9%88_%D8%A8%D8%B9%D8%AF\"><\/span>\n<p>  \u0642\u0628\u0644 \u0648 \u0628\u0639\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06cc\u06a9 \u062a\u0633\u062a \u0645\u0639\u0645\u0648\u0644\u06cc \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 <code>renderHook<\/code> API \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0647 \u0634\u06a9\u0644 \u0632\u06cc\u0631 \u0628\u0627\u0634\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"nf\">test<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">when fetch: should set loading and users<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"c1\">\/\/ Arrange<\/span>\n  <span class=\"kd\">const<\/span> <span class=\"nx\">myMockFetch<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">().<\/span><span class=\"nf\">mockResolvedValue<\/span><span class=\"p\">([{<\/span> <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">1<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">User 1<\/span><span class=\"dl\">'<\/span> <span class=\"p\">}]);<\/span>\n  <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">result<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">renderHook<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">useFetchUsers<\/span><span class=\"p\">(<\/span><span class=\"nx\">myMockFetch<\/span><span class=\"p\">));<\/span>\n\n  <span class=\"c1\">\/\/ Assert initial state<\/span>\n  <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toBe<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n  <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nx\">users<\/span><span class=\"p\">).<\/span><span class=\"nf\">toEqual<\/span><span class=\"p\">([]);<\/span>\n\n  <span class=\"c1\">\/\/ Act<\/span>\n  <span class=\"k\">await<\/span> <span class=\"nf\">act<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">await<\/span> <span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n  <span class=\"p\">});<\/span>\n\n  <span class=\"c1\">\/\/ Assert final state<\/span>\n  <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">myMockFetch<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenCalledTimes<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">);<\/span>\n  <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toBe<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n  <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nx\">users<\/span><span class=\"p\">).<\/span><span class=\"nf\">toEqual<\/span><span class=\"p\">([{<\/span> <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">1<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">User 1<\/span><span class=\"dl\">'<\/span> <span class=\"p\">}]);<\/span>\n<span class=\"p\">});<\/span>\n\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0627\u0644\u06af\u0648\u06cc HRR \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0634\u062f\u060c \u0646\u0648\u0634\u062a\u0646 \u062a\u0633\u062a \u0647\u0627 \u0631\u0627\u062d\u062a \u062a\u0631 \u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f. \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0646\u0645\u0648\u0646\u0647 \u0627\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u0647\u0645\u0627\u0646 \u062a\u0633\u062a \u0628\u0627\u0644\u0627 \u0634\u0628\u06cc\u0647 \u0622\u0646 \u0627\u0633\u062a:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"nf\">test<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">when fetch: should set loading and users<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"c1\">\/\/ Arrange<\/span>\n    <span class=\"nx\">fetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">renderUseFetchUsers<\/span><span class=\"p\">();<\/span>\n\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toBe<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">users<\/span><span class=\"p\">).<\/span><span class=\"nf\">toEqual<\/span><span class=\"p\">([]);<\/span>\n\n    <span class=\"c1\">\/\/ Act<\/span>\n    <span class=\"k\">await<\/span> <span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n\n    <span class=\"c1\">\/\/ Assert<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">myMockFetch<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenCalledTimes<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">);<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toBe<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">users<\/span><span class=\"p\">).<\/span><span class=\"nf\">toEqual<\/span><span class=\"p\">([{<\/span> <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">1<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">User 1<\/span><span class=\"dl\">'<\/span> <span class=\"p\">}]);<\/span>\n<span class=\"p\">});<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"%D8%B3%D9%87_%D9%81%D8%A7%DB%8C%D9%84\"><\/span>\n<p>  \u0633\u0647 \u0641\u0627\u06cc\u0644<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0645\u062b\u0627\u0644 \u0633\u0647 \u0641\u0627\u06cc\u0644 \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f:<\/p>\n<ol>\n<li>\n<p><strong>\u0642\u0644\u0627\u0628<\/strong> (<code>useFetchUsers.ts<\/code>):<\/p>\n<p>\u0645\u0646\u0637\u0642 \u0627\u0635\u0644\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0648\u0627\u06a9\u0634\u06cc \u0648 \u0630\u062e\u06cc\u0631\u0647 \u0644\u06cc\u0633\u062a\u06cc \u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u0627\u0646 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0642\u0644\u0627\u0628 \u062f\u0631 \u062d\u0627\u0644 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0627\u0633\u062a.<\/p>\n<\/li>\n<li>\n<p><strong>\u06cc\u0627\u0648\u0631 \u0622\u0632\u0645\u0648\u0646<\/strong> (<code>UseFetchUsersRenderResult.ts<\/code>):<\/p>\n<p>\u0646\u062a\u06cc\u062c\u0647 \u0642\u0644\u0627\u0628 \u0631\u0646\u062f\u0631 \u0634\u062f\u0647 \u0631\u0627 \u0645\u06cc\u200c\u067e\u06cc\u0686\u062f \u062a\u0627 \u06cc\u06a9 API \u062f\u0648\u0633\u062a\u0627\u0646\u0647\u200c\u062a\u0631 \u0628\u0631\u0627\u06cc \u0627\u062f\u0639\u0627\u0647\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634\u06cc \u0634\u0645\u0627 \u0646\u0634\u0627\u0646 \u062f\u0647\u062f (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0646\u06cc\u0627\u0632\u06cc \u0628\u0647 \u062a\u0645\u0627\u0633 \u0645\u06a9\u0631\u0631 \u0646\u06cc\u0633\u062a <code>result.current<\/code> \u06cc\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u062f\u0633\u062a\u06cc \u0647\u0631 \u0627\u0642\u062f\u0627\u0645\u06cc \u0631\u0627 \u062f\u0631 \u0622\u0646 \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u062f <code>act()<\/code>). \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u06cc\u200c\u062e\u0648\u0627\u0647\u06cc\u062f \u0627\u06cc\u0646 \u06a9\u0645\u06a9\u200c\u06a9\u0646\u0646\u062f\u0647 \u062a\u0627 \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0647 API \u0647\u0648\u06a9 \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0627\u0634\u062f\u060c \u0648\u0638\u06cc\u0641\u0647 \u0622\u0646 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u06a9\u0631\u062f\u0646 \u0622\u0632\u0645\u0627\u06cc\u0634\u200c\u0647\u0627 \u0627\u0633\u062a &#8211; \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0647\u0646\u06af\u0627\u0645 \u0645\u0639\u0631\u0641\u06cc \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a\u060c \u062a\u0635\u0645\u06cc\u0645\u200c\u06af\u06cc\u0631\u06cc \u0622\u06af\u0627\u0647\u0627\u0646\u0647 \u0628\u06af\u06cc\u0631\u06cc\u062f.<\/p>\n<\/li>\n<li>\n<p><strong>\u0641\u0627\u06cc\u0644 \u062a\u0633\u062a<\/strong> (<code>useFetchUsers.test.ts<\/code>):<\/p>\n<p>\u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc \u0631\u0627 \u062f\u0631 \u0622\u0632\u0645\u0648\u0646\u200c\u0647\u0627\u06cc \u062e\u0648\u062f \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f\u060c \u0628\u0647 \u062c\u0627\u06cc \u062f\u06cc\u06af \u0628\u062e\u0627\u0631\u060c \u0628\u0631 \u0645\u0646\u0637\u0642 \u0642\u0644\u0627\u0628 \u062a\u0645\u0631\u06a9\u0632 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<\/li>\n<\/ol>\n<p>\u062f\u0631 \u0632\u06cc\u0631\u060c \u0647\u0631 \u0641\u0627\u06cc\u0644 \u0631\u0627 \u0645\u0631\u0648\u0631 \u0645\u06cc \u06a9\u0646\u06cc\u0645 \u0648 \u062c\u0632\u0626\u06cc\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc \u0627\u06cc\u0646 \u0627\u0644\u06af\u0648 \u0631\u0627 \u0628\u0631\u062c\u0633\u062a\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645.<\/p>\n<hr\/>\n<h2><span class=\"ez-toc-section\" id=\"1_%D9%82%D9%84%D8%A7%D8%A8_%D8%B3%D9%81%D8%A7%D8%B1%D8%B4%DB%8C\"><\/span>\n<p>  1. \u0642\u0644\u0627\u0628 \u0633\u0641\u0627\u0631\u0634\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%D9%86%DA%A9%D8%A7%D8%AA_%DA%A9%D9%84%DB%8C%D8%AF%DB%8C\"><\/span>\n<p>  \u0646\u06a9\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\n<strong>\u0645\u062f\u06cc\u0631\u06cc\u062a \u062f\u0648\u0644\u062a\u06cc<\/strong>: \u0642\u0644\u0627\u0628 \u06cc\u06a9 \u0631\u0627 \u062f\u0646\u0628\u0627\u0644 \u0645\u06cc \u06a9\u0646\u062f <code>isLoading<\/code> \u067e\u0631\u0686\u0645 \u0648 <code>users<\/code>.<\/li>\n<li>\n<strong>\u0648\u0627\u06a9\u0634\u06cc<\/strong>: \u06cc\u06a9 <strong>\u0646\u0627\u0647\u0645\u06af\u0627\u0645<\/strong> \u062a\u0627\u0628\u0639\u06cc \u06a9\u0647 \u062d\u0627\u0644\u062a \u0628\u0627\u0631\u06af\u06cc\u0631\u06cc \u0631\u0627 \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc \u0645\u06cc \u06a9\u0646\u062f\u060c \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc \u0645\u06cc \u06a9\u0646\u062f <code>fetchUsers<\/code> \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u0648 \u0628\u0647\u200c\u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc\u200c\u0647\u0627 \u067e\u0633 \u0627\u0632 \u062a\u06a9\u0645\u06cc\u0644 \u0648\u0636\u0639\u06cc\u062a \u0645\u06cc\u200c\u0634\u0648\u0646\u062f.\n<\/li>\n<\/ul>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"c1\">\/\/ useFetchUsers.ts<\/span>\n<span class=\"k\">import<\/span> <span class=\"nx\">React<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">useState<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">react<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n\n<span class=\"k\">export<\/span> <span class=\"kr\">interface<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nl\">id<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n    <span class=\"nl\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"kd\">type<\/span> <span class=\"nx\">FetchUsersFn<\/span> <span class=\"o\">=<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">User<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">;<\/span>\n\n<span class=\"k\">export<\/span> <span class=\"kr\">interface<\/span> <span class=\"nx\">UseFetchUsersResult<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nl\">isLoading<\/span><span class=\"p\">:<\/span> <span class=\"nx\">boolean<\/span><span class=\"p\">;<\/span>\n    <span class=\"nl\">users<\/span><span class=\"p\">:<\/span> <span class=\"nx\">User<\/span><span class=\"p\">[];<\/span>\n    <span class=\"nl\">fetch<\/span><span class=\"p\">:<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"k\">void<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">;<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">useFetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">:<\/span> <span class=\"nx\">FetchUsersFn<\/span><span class=\"p\">,<\/span> <span class=\"nx\">messaging<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">message<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">void<\/span><span class=\"p\">):<\/span> <span class=\"nx\">UseFetchUsersResult<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"kd\">const<\/span> <span class=\"p\">[<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">,<\/span> <span class=\"nx\">setIsLoading<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">useState<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n    <span class=\"kd\">const<\/span> <span class=\"p\">[<\/span><span class=\"nx\">users<\/span><span class=\"p\">,<\/span> <span class=\"nx\">setUsers<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">useState<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">User<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">([]);<\/span>\n\n    <span class=\"kd\">const<\/span> <span class=\"nx\">fetch<\/span> <span class=\"o\">=<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"nf\">setIsLoading<\/span><span class=\"p\">(<\/span><span class=\"kc\">true<\/span><span class=\"p\">);<\/span>\n        <span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\n            <span class=\"kd\">const<\/span> <span class=\"nx\">users<\/span> <span class=\"o\">=<\/span> <span class=\"k\">await<\/span> <span class=\"nf\">fetchUsers<\/span><span class=\"p\">();<\/span>\n            <span class=\"nf\">setUsers<\/span><span class=\"p\">(<\/span><span class=\"nx\">users<\/span><span class=\"p\">);<\/span>\n        <span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">{<\/span>\n            <span class=\"nf\">messaging<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">There was an issue fetching users<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\n        <span class=\"p\">}<\/span> <span class=\"k\">finally<\/span> <span class=\"p\">{<\/span>\n            <span class=\"nf\">setIsLoading<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n        <span class=\"p\">}<\/span>\n    <span class=\"p\">};<\/span>\n\n    <span class=\"k\">return<\/span> <span class=\"p\">{<\/span>\n        <span class=\"nx\">isLoading<\/span><span class=\"p\">,<\/span>\n        <span class=\"nx\">users<\/span><span class=\"p\">,<\/span>\n        <span class=\"nx\">fetch<\/span><span class=\"p\">,<\/span>\n    <span class=\"p\">};<\/span>\n<span class=\"p\">};<\/span>\n\n<span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"nx\">useFetchUsers<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"2_Hook_Render_Result_Helper\"><\/span>\n<p>  2. Hook Render Result Helper<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%D9%86%DA%A9%D8%A7%D8%AA_%DA%A9%D9%84%DB%8C%D8%AF%DB%8C-2\"><\/span>\n<p>  \u0646\u06a9\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>\n<strong>\u0647\u0645\u06cc\u0646 \u0631\u0627\u0628\u0637 \u0631\u0627 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0645\u06cc \u06a9\u0646\u062f<\/strong> (<code>UseFetchUsersResult<\/code>) \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0642\u0644\u0627\u0628 \u0633\u0641\u0627\u0631\u0634\u06cc\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0622\u0646 \u0631\u0627 \u0628\u0647 \u062c\u0627\u06cc \u06cc\u06a9\u062f\u06cc\u06af\u0631 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0642\u0631\u0627\u0631 \u062f\u0627\u062f (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c <code>isLoading<\/code>\u060c <code>users<\/code>\u060c \u0648 <code>fetch<\/code>). <\/li>\n<li>\n<strong>\u06a9\u067e\u0633\u0648\u0644 \u0645\u06cc \u06a9\u0646\u062f <code>act()<\/code><\/strong>: \u0647\u0646\u06af\u0627\u0645 \u062a\u0645\u0627\u0633 <code>fetch()<\/code>\u060c \u0628\u0647 \u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 \u0642\u0644\u0627\u0628 \u0631\u0627 \u0645\u06cc \u067e\u06cc\u0686\u062f <code>fetch<\/code> \u062f\u0631 \u06cc\u06a9 <code>React Test Utils<\/code> <code>act()<\/code>  \u062a\u0645\u0627\u0633 \u0628\u06af\u06cc\u0631\u06cc\u062f. \u0627\u06cc\u0646 \u062a\u0636\u0645\u06cc\u0646 \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc \u0647\u0627\u06cc \u062d\u0627\u0644\u062a \u0628\u0647 \u062f\u0631\u0633\u062a\u06cc \u0648 \u0628\u062f\u0648\u0646 \u067e\u0631\u0627\u06a9\u0646\u062f\u06af\u06cc \u0627\u0639\u0645\u0627\u0644 \u0645\u06cc \u0634\u0648\u0646\u062f <code>act()<\/code> \u062a\u0645\u0627\u0633 \u062f\u0631 \u0633\u0631\u0627\u0633\u0631 \u0622\u0632\u0645\u0648\u0646 \u0634\u0645\u0627.<\/li>\n<\/ol>\n<p>\u062f\u0631 \u0627\u0635\u0644\u060c \u0627\u06cc\u0646 \u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc <strong>\u06cc\u06a9 API \u06a9\u0646\u062a\u0631\u0644 \u0634\u062f\u0647 \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f<\/strong> \u0628\u0631\u0627\u06cc \u062a\u0639\u0627\u0645\u0644 \u0628\u0627 \u0648\u0636\u0639\u06cc\u062a \u0648 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0642\u0644\u0627\u0628\u060c \u062a\u0645\u0631\u06a9\u0632 \u06a9\u062f \u062a\u0633\u062a \u0628\u0631 \u0631\u0648\u06cc \u0631\u0641\u062a\u0627\u0631\u0647\u0627 \u0628\u0647 \u062c\u0627\u06cc \u062f\u06cc\u06af \u0628\u062e\u0627\u0631. \u0628\u0647 \u06cc\u0627\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f\u060c \u0627\u06cc\u0646 \u0631\u0627\u0647\u0646\u0645\u0627 \u0627\u06cc\u0646\u062c\u0627\u0633\u062a \u062a\u0627 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0631\u0627 \u0622\u0633\u0627\u0646\u200c\u062a\u0631 \u06a9\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0627\u06af\u0631 \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a\u06cc \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0645\u0627 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f\u060c \u062a\u0635\u0645\u06cc\u0645 \u0622\u06af\u0627\u0647\u0627\u0646\u0647\u200c\u0627\u06cc \u062f\u0631 \u0645\u0648\u0631\u062f \u0646\u062d\u0648\u0647 \u0631\u0627\u0647\u200c\u0627\u0646\u062f\u0627\u0632\u06cc \u06a9\u0645\u06a9\u200c\u06a9\u0646\u0646\u062f\u0647 \u062e\u0648\u062f \u0628\u06af\u06cc\u0631\u06cc\u062f.<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"c1\">\/\/ UseFetchUsersRenderResult.ts<\/span>\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">act<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">react-dom\/test-utils<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">UseFetchUsersResult<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/..\/useFetchUsers<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n\n<span class=\"kd\">type<\/span> <span class=\"nx\">HookRenderResult<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span> <span class=\"na\">current<\/span><span class=\"p\">:<\/span> <span class=\"nx\">UseFetchUsersResult<\/span> <span class=\"p\">};<\/span>\n\n<span class=\"kd\">class<\/span> <span class=\"nc\">UseFetchUsersRenderResult<\/span> <span class=\"k\">implements<\/span> <span class=\"nx\">UseFetchUsersResult<\/span> <span class=\"p\">{<\/span>\n    <span class=\"nf\">constructor<\/span><span class=\"p\">(<\/span><span class=\"k\">private<\/span> <span class=\"nx\">renderResult<\/span><span class=\"p\">:<\/span> <span class=\"nx\">HookRenderResult<\/span><span class=\"p\">)<\/span> <span class=\"p\">{}<\/span>\n\n    <span class=\"kd\">get<\/span> <span class=\"nf\">isLoading<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">renderResult<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"kd\">get<\/span> <span class=\"nf\">users<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">return<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">renderResult<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nx\">users<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"k\">async<\/span> <span class=\"nf\">fetch<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">await<\/span> <span class=\"nf\">act<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n            <span class=\"k\">await<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">renderResult<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n        <span class=\"p\">});<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">}<\/span>\n\n<span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"nx\">UseFetchUsersRenderResult<\/span><span class=\"p\">;<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"3_%D9%81%D8%A7%DB%8C%D9%84_%D8%AA%D8%B3%D8%AA\"><\/span>\n<p>  3. \u0641\u0627\u06cc\u0644 \u062a\u0633\u062a<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"%D8%B1%D8%A7%D9%87_%D8%A7%D9%86%D8%AF%D8%A7%D8%B2%DB%8C\"><\/span>\n<p>  \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\n<strong><code>DEFAULT_ARGS<\/code><\/strong>: \u0622\u0631\u06af\u0648\u0645\u0627\u0646 \u0647\u0627\u06cc \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0631\u0627 \u0628\u0631\u0627\u06cc the \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u062f <code>fetchUsers<\/code> \u0648 <code>messaging<\/code> \u062a\u0648\u0627\u0628\u0639\u06cc \u06a9\u0647 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0637\u0648\u0644 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0645\u0648\u0631\u062f \u062a\u0645\u0633\u062e\u0631 \u0642\u0631\u0627\u0631 \u06af\u06cc\u0631\u0646\u062f. \u0622\u0632\u0645\u0627\u06cc\u0634\u200c\u0647\u0627\u06cc \u0641\u0631\u062f\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0627\u06cc\u0646 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636\u200c\u0647\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0634\u0628\u06cc\u0647\u200c\u0633\u0627\u0632\u06cc \u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641 \u0644\u063a\u0648 \u06a9\u0646\u0646\u062f (\u0645\u062b\u0644\u0627\u064b \u0648\u0627\u06a9\u0634\u06cc \u0645\u0648\u0641\u0642\u060c \u062e\u0637\u0627\u0647\u0627\u060c \u067e\u0627\u0633\u062e\u200c\u0647\u0627\u06cc \u0628\u0627 \u062a\u0623\u062e\u06cc\u0631).<\/li>\n<li>\n<strong><code>renderUseFetchUsers<\/code><\/strong>: \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u06a9\u0648\u0686\u06a9 \u06a9\u0647 \u0627\u0632 \u0627\u0644\u06af\u0648\u06cc HRR \u0645\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f. \u062a\u0645\u0627\u0633 \u0645\u06cc \u06af\u06cc\u0631\u062f <code>renderHook(() =&gt; useFetchUsers(...))<\/code>\u060c \u0633\u067e\u0633 \u0628\u0631\u06af\u0631\u062f\u0627\u0646\u062f\u0647 \u0631\u0627 \u0645\u06cc \u067e\u06cc\u0686\u062f <code>result<\/code> \u062f\u0631 \u0645\u0627 <code>UseFetchUsersRenderResult<\/code> \u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc\n<\/li>\n<\/ul>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"c1\">\/\/ useFetchUsers.test.ts<\/span>\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">renderHook<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@testing-library\/react<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n<span class=\"k\">import<\/span> <span class=\"nx\">useFetchUsers<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">User<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/useFetchUsers<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n<span class=\"k\">import<\/span> <span class=\"nx\">UseFetchUsersRenderResult<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/helpers\/UseFetchUsersRenderResult<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">DEFAULT_ARGS<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">Object<\/span><span class=\"p\">.<\/span><span class=\"nf\">freeze<\/span><span class=\"p\">({<\/span>\n    <span class=\"na\">fetchUsers<\/span><span class=\"p\">:<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">(),<\/span>\n    <span class=\"na\">messaging<\/span><span class=\"p\">:<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">(),<\/span>\n<span class=\"p\">});<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">renderUseFetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">,<\/span> <span class=\"nx\">messaging<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">messaging<\/span><span class=\"p\">):<\/span> <span class=\"nx\">UseFetchUsersRenderResult<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">result<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">renderHook<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">useFetchUsers<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">,<\/span> <span class=\"nx\">messaging<\/span><span class=\"p\">));<\/span>\n    <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">UseFetchUsersRenderResult<\/span><span class=\"p\">(<\/span><span class=\"nx\">result<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">};<\/span>\n\n<span class=\"nf\">describe<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">useFetchUsers<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"kd\">let<\/span> <span class=\"na\">fetchUsers<\/span><span class=\"p\">:<\/span> <span class=\"nx\">UseFetchUsersRenderResult<\/span><span class=\"p\">;<\/span>\n\n    <span class=\"nf\">afterEach<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">clearAllMocks<\/span><span class=\"p\">();<\/span>\n    <span class=\"p\">});<\/span>\n\n    <span class=\"nf\">test<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">when initializing: should have correct default result<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"c1\">\/\/ Arrange, act<\/span>\n        <span class=\"nx\">fetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">renderUseFetchUsers<\/span><span class=\"p\">();<\/span>\n\n        <span class=\"c1\">\/\/ Assert<\/span>\n        <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toBe<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n        <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">users<\/span><span class=\"p\">).<\/span><span class=\"nf\">toEqual<\/span><span class=\"p\">([]);<\/span>\n    <span class=\"p\">});<\/span>\n\n    <span class=\"nf\">test<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">when fetch: should call fetchUsers arg<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"c1\">\/\/ Arrange<\/span>\n        <span class=\"nx\">fetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">renderUseFetchUsers<\/span><span class=\"p\">();<\/span>\n\n        <span class=\"c1\">\/\/ Act<\/span>\n        <span class=\"k\">await<\/span> <span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n\n        <span class=\"c1\">\/\/ Assert<\/span>\n        <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenCalledTimes<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">);<\/span>\n    <span class=\"p\">});<\/span>\n\n    <span class=\"nf\">test<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">when fetch: should set loading and users<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"c1\">\/\/ Arrange<\/span>\n        <span class=\"kd\">const<\/span> <span class=\"nx\">myMockFetch<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">().<\/span><span class=\"nf\">mockImplementation<\/span><span class=\"p\">(<\/span>\n            <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span>\n                <span class=\"k\">new<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">User<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">((<\/span><span class=\"nx\">resolve<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n                    <span class=\"nf\">setTimeout<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n                        <span class=\"nf\">resolve<\/span><span class=\"p\">([{<\/span> <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">1<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">User 1<\/span><span class=\"dl\">'<\/span> <span class=\"p\">}]);<\/span>\n                    <span class=\"p\">},<\/span> <span class=\"mi\">50<\/span><span class=\"p\">);<\/span>\n                <span class=\"p\">})<\/span>\n        <span class=\"p\">);<\/span>\n        <span class=\"nx\">fetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">renderUseFetchUsers<\/span><span class=\"p\">(<\/span><span class=\"nx\">myMockFetch<\/span><span class=\"p\">);<\/span>\n\n        <span class=\"c1\">\/\/ Act<\/span>\n        <span class=\"k\">await<\/span> <span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n\n        <span class=\"c1\">\/\/ Assert<\/span>\n        <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toBe<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n        <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">users<\/span><span class=\"p\">).<\/span><span class=\"nf\">toEqual<\/span><span class=\"p\">([{<\/span> <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">1<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">User 1<\/span><span class=\"dl\">'<\/span> <span class=\"p\">}]);<\/span>\n    <span class=\"p\">});<\/span>\n\n    <span class=\"nf\">test<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">when fetch: should set loading and call messaging on error<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"c1\">\/\/ Arrange<\/span>\n        <span class=\"kd\">const<\/span> <span class=\"nx\">myMockFetch<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">().<\/span><span class=\"nf\">mockRejectedValueOnce<\/span><span class=\"p\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">Error<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">An error occurred<\/span><span class=\"dl\">'<\/span><span class=\"p\">));<\/span>\n        <span class=\"nx\">fetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">renderUseFetchUsers<\/span><span class=\"p\">(<\/span><span class=\"nx\">myMockFetch<\/span><span class=\"p\">);<\/span>\n\n        <span class=\"c1\">\/\/ Act<\/span>\n        <span class=\"k\">await<\/span> <span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n\n        <span class=\"c1\">\/\/ Assert<\/span>\n        <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">messaging<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenCalledTimes<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">);<\/span>\n        <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">messaging<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenCalledWith<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">There was an issue fetching users<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\n    <span class=\"p\">});<\/span>\n<span class=\"p\">});<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<hr\/>\n<h2><span class=\"ez-toc-section\" id=\"%D9%86%D8%AA%DB%8C%D8%AC%D9%87_%DA%AF%DB%8C%D8%B1%DB%8C_%D8%A7%D9%84%DA%AF%D9%88\"><\/span>\n<p>  \u0646\u062a\u06cc\u062c\u0647 \u06af\u06cc\u0631\u06cc \u0627\u0644\u06af\u0648<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06cc\u0646 <strong>\u0646\u062a\u06cc\u062c\u0647 \u0631\u0646\u062f\u0631 \u0647\u0648\u06a9 (HRR)<\/strong> \u0627\u0644\u06af\u0648 \u0631\u0648\u0634\u06cc \u0633\u0627\u062f\u0647 \u0628\u0631\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 \u0642\u0644\u0627\u0628 \u0647\u0627\u06cc \u0633\u0641\u0627\u0631\u0634\u06cc \u0634\u0645\u0627 \u0628\u0627 \u0645\u062a\u0645\u0631\u06a9\u0632 \u06a9\u0631\u062f\u0646 \u062f\u06cc\u06af \u0628\u062e\u0627\u0631 \u0645\u0639\u0645\u0648\u0644\u06cc \u062f\u0631 \u06cc\u06a9 \u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f. \u0628\u0647 \u062c\u0627\u06cc \u062a\u0645\u0627\u0633 \u0645\u06a9\u0631\u0631 <code>result.current<\/code> \u0648 \u0628\u0647 \u0635\u0648\u0631\u062a \u062f\u0633\u062a\u06cc \u0647\u0631 \u0639\u0645\u0644 \u0631\u0627 \u062f\u0631 \u0622\u0646 \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u062f <code>act()<\/code>\u060c \u06a9\u0645\u06a9 \u06a9\u0646\u0646\u062f\u0647 \u0627\u06cc\u0646 \u062c\u0632\u0626\u06cc\u0627\u062a \u0631\u0627 \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0628\u0627\u0639\u062b \u0645\u06cc\u200c\u0634\u0648\u062f \u0631\u0648\u06cc \u062a\u0633\u062a\u200c\u0647\u0627\u06cc \u0634\u0645\u0627 \u0645\u062a\u0645\u0631\u06a9\u0632 \u0634\u0648\u0646\u062f <strong>\u0686\u06cc<\/strong> \u0642\u0644\u0627\u0628 \u0628\u0627\u06cc\u062f \u0628\u0647 \u062c\u0627\u06cc <strong>\u0686\u06af\u0648\u0646\u0647<\/strong> \u0628\u0631\u0627\u06cc \u0647\u0645\u0627\u0647\u0646\u06af \u06a9\u0631\u062f\u0646 \u0622\u0646 \u0627\u0642\u062f\u0627\u0645\u0627\u062a \u062f\u0631 \u0645\u062d\u06cc\u0637 \u0622\u0632\u0645\u0627\u06cc\u0634.<\/p>\n<hr\/>\n<h2><span class=\"ez-toc-section\" id=\"%D9%85%D8%AF%DB%8C%D8%B1%DB%8C%D8%AA_%D9%85%D9%86%D8%B7%D9%82_Async_%D8%AF%D8%B1_Helper_%D8%B4%D9%85%D8%A7\"><\/span>\n<p>  \u0645\u062f\u06cc\u0631\u06cc\u062a \u0645\u0646\u0637\u0642 Async \u062f\u0631 Helper \u0634\u0645\u0627<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062c\u0627\u0648\u0627 \u0627\u0633\u06a9\u0631\u06cc\u067e\u062a \u0627\u063a\u0644\u0628 \u0627\u0648\u0642\u0627\u062a \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0639\u0645\u0644\u06a9\u0631\u062f \u0646\u0627\u0647\u0645\u06af\u0627\u0645 \u062f\u0627\u0631\u062f. \u0648\u0642\u062a\u06cc \u0642\u0644\u0627\u0628 \u0634\u0645\u0627 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u0646\u0627\u0647\u0645\u06af\u0627\u0645 \u0631\u0627 \u0628\u0631\u0645\u06cc \u06af\u0631\u062f\u0627\u0646\u062f\u2014\u0645\u0627\u0646\u0646\u062f <code>fetch()<\/code> \u062f\u0631 \u0645\u0627 <code>useFetchUsers<\/code> \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 &#8211; \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u062e\u0648\u0627\u0647\u06cc\u062f \u0622\u0632\u0645\u0627\u06cc\u0634 \u06a9\u0646\u06cc\u062f <strong>\u062d\u0627\u0644\u062a \u0647\u0627\u06cc \u0645\u06cc\u0627\u0646\u06cc<\/strong> \u06a9\u0647 \u0628\u06cc\u0646 \u0634\u0631\u0648\u0639 \u0648 \u067e\u0627\u06cc\u0627\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f \u0646\u0627\u0647\u0645\u06af\u0627\u0645 \u0634\u0645\u0627 \u0627\u062a\u0641\u0627\u0642 \u0645\u06cc \u0627\u0641\u062a\u062f (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0628\u0631\u0631\u0633\u06cc <code>isLoading<\/code> \u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647 \u067e\u0633 \u0627\u0632 \u0634\u0631\u0648\u0639 \u062a\u0645\u0627\u0633). \u062f\u0631 \u0632\u06cc\u0631 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0631\u0627\u06cc\u062c\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0631 \u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc \u062e\u0648\u062f \u062a\u0631\u06a9\u06cc\u0628 \u0648 \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0647\u06cc\u062f.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_%D8%AA%D9%85%D8%A7%D8%B3_Async_%E2%80%9C%D9%87%D9%85%D9%87_%D8%AF%D8%B1_%DB%8C%DA%A9%E2%80%9D\"><\/span>\n<p>  1. \u062a\u0645\u0627\u0633 Async &#8220;\u0647\u0645\u0647 \u062f\u0631 \u06cc\u06a9&#8221;.<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0631\u0648\u06cc\u06a9\u0631\u062f \u0645\u0648\u0631\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0645\u062b\u0627\u0644 \u0647\u0627\u06cc \u0628\u0627\u0644\u0627. \u0627\u06cc\u0646 \u0633\u0627\u062f\u0647 \u062a\u0631\u06cc\u0646 \u0627\u0633\u062a\u060c \u0646\u06a9\u062a\u0647 \u0627\u06cc\u0646 \u0627\u0633\u062a \u06a9\u0647 \u06a9\u0644 \u062a\u0645\u0627\u0633 \u063a\u06cc\u0631 \u0647\u0645\u06af\u0627\u0645 (\u0627\u0632 \u062c\u0645\u0644\u0647 \u062a\u0645\u0627\u0633) \u0631\u0627 \u0628\u067e\u06cc\u0686\u06cc\u062f <code>.then()<\/code> \u06cc\u0627 <code>await<\/code>) \u062f\u0627\u062e\u0644 \u06cc\u06a9 <code>act(async () =&gt; {})<\/code>. \u0628\u0647 \u0639\u0628\u0627\u0631\u062a \u062f\u06cc\u06af\u0631\u060c \u0627\u06af\u0631 \u06cc\u0627\u0648\u0631 \u0634\u0645\u0627 \u06cc\u06a9 \u0645\u062c\u0631\u062f \u0631\u0627 \u0627\u0641\u0634\u0627 \u06a9\u0646\u062f <code>fetch()<\/code> \u0631\u0648\u0634\u060c \u0622\u0646 \u0631\u0627 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f <strong>\u062f\u0631 \u0627\u0646\u062a\u0638\u0627\u0631<\/strong> \u0631\u0648\u0634 \u0648\u0627\u06a9\u0634\u06cc \u0642\u0644\u0627\u0628 \u062f\u0631 \u062f\u0627\u062e\u0644 <code>act<\/code>:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"k\">async<\/span> <span class=\"nf\">fetch<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n  <span class=\"k\">await<\/span> <span class=\"nf\">act<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">await<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">renderResult<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n  <span class=\"p\">});<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u062c\u0648\u0627\u0646\u0628 \u0645\u062b\u0628\u062a<\/strong>:<\/p>\n<ul>\n<li>\u06a9\u062f \u062a\u0633\u062a \u0628\u0627\u0642\u06cc \u0645\u06cc \u0645\u0627\u0646\u062f <strong>\u0628\u0633\u06cc\u0627\u0631 \u0633\u0627\u062f\u0647<\/strong>-\u0641\u0642\u0637 <code>await fetchUsers.fetch()<\/code> \u0648 \u062d\u0627\u0644\u0627\u062a \u0646\u0647\u0627\u06cc\u06cc \u0631\u0627 \u0628\u06cc\u0627\u0646 \u06a9\u0646\u06cc\u062f.<\/li>\n<li>\u0628\u062f\u0648\u0646 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u0627\u0628\u0632\u0627\u0631\u0647\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634\u06cc \u0627\u0636\u0627\u0641\u06cc (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u0628\u062f\u0648\u0646 \u0646\u06cc\u0627\u0632 \u0628\u0647 <code>waitFor<\/code> \u06cc\u0627 \u062a\u0642\u0633\u06cc\u0645 \u0645\u0631\u0627\u062d\u0644).<\/li>\n<\/ul>\n<p><strong>\u0645\u0646\u0641\u06cc<\/strong>:<\/p>\n<ul>\n<li>\u0634\u0645\u0627 <strong>\u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062d\u0627\u0644\u062a \u0645\u06cc\u0627\u0646\u06cc \u0631\u0627 \u0622\u0632\u0645\u0627\u06cc\u0634 \u06a9\u0646\u062f<\/strong> &#8211; \u0647\u06cc\u0686 \u0631\u0627\u0647\u06cc \u0628\u0631\u0627\u06cc \u0627\u062b\u0628\u0627\u062a \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0648\u062c\u0648\u062f \u0646\u062f\u0627\u0631\u062f <code>isLoading<\/code> \u0628\u0648\u062f <code>true<\/code> <em>\u0628\u0644\u0627\u0641\u0627\u0635\u0644\u0647<\/em> \u067e\u0633 \u0627\u0632 \u0648\u0627\u06a9\u0634\u06cc \u0634\u0631\u0648\u0639 \u0645\u06cc \u0634\u0648\u062f\u060c \u0632\u06cc\u0631\u0627 \u062f\u0631 \u0622\u0646 \u0632\u0645\u0627\u0646 <code>fetch()<\/code> \u062d\u0644 \u0645\u06cc \u0634\u0648\u062f\u060c \u0642\u0644\u0627\u0628 \u0642\u0628\u0644\u0627\u064b \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc \u0628\u0647 \u067e\u0627\u06cc\u0627\u0646 \u0631\u0633\u06cc\u062f\u0647 \u0627\u0633\u062a.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"2_%D8%AA%D9%85%D8%A7%D8%B3_Async_%C2%AB%D8%B4%D8%B1%D9%88%D8%B9%C2%BB_%D8%B1%D8%A7_%D8%AF%D8%B1_%D9%85%D9%82%D8%A7%D8%A8%D9%84_%C2%AB%D9%BE%D8%A7%DB%8C%D8%A7%D9%86%C2%BB_%D8%AA%D9%82%D8%B3%DB%8C%D9%85_%DA%A9%D9%86%DB%8C%D8%AF\"><\/span>\n<p>  2. \u062a\u0645\u0627\u0633 Async \u00ab\u0634\u0631\u0648\u0639\u00bb \u0631\u0627 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u00ab\u067e\u0627\u06cc\u0627\u0646\u00bb \u062a\u0642\u0633\u06cc\u0645 \u06a9\u0646\u06cc\u062f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0627\u06af\u0631 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0627\u06cc\u0646 \u0631\u0627 \u0627\u062f\u0639\u0627 \u06a9\u0646\u06cc\u062f <code>isLoading<\/code> \u0627\u0633\u062a <code>true<\/code> <em>\u0642\u0628\u0644 \u0627\u0632<\/em> \u0648\u0627\u06a9\u0634\u06cc \u062d\u0644 \u0645\u06cc \u0634\u0648\u062f\u060c \u062a\u0642\u0633\u06cc\u0645 \u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f. \u0627\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0631\u0648\u0634\u06cc \u0633\u0627\u062e\u062a\u0627\u0631\u06cc\u0627\u0641\u062a\u0647 \u0628\u0631\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u0648 \u0628\u0647 \u062a\u0627\u062e\u06cc\u0631 \u0627\u0646\u062f\u0627\u062e\u062a\u0646 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u062d\u0644 \u0648 \u0641\u0635\u0644 \u06cc\u06a9 \u0648\u0639\u062f\u0647 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc \u06a9\u0646\u06cc\u062f \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u06a9\u0644\u0627\u0633 helper \u06cc\u06a9 \u062e\u0648\u0627\u0647\u062f \u062f\u0627\u0634\u062a <code>startFetch()<\/code> \u0631\u0648\u0634\u06cc \u0628\u0631\u0627\u06cc \u0634\u0631\u0648\u0639 \u062a\u0645\u0627\u0633 async \u0648 \u06cc\u06a9 \u0631\u0648\u0634 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 <code>finishFetch()<\/code> \u0631\u0648\u0634 \u0627\u0646\u062a\u0638\u0627\u0631 \u0628\u0631\u0627\u06cc \u062a\u06a9\u0645\u06cc\u0644 \u0622\u0646:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">UseFetchUsersRenderResult<\/span> <span class=\"k\">implements<\/span> <span class=\"nx\">UseFetchUsersResult<\/span> <span class=\"p\">{<\/span>\n    <span class=\"k\">private<\/span> <span class=\"nx\">fetchPromise<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"k\">void<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">|<\/span> <span class=\"kc\">null<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\n\n    <span class=\"c1\">\/\/ ...other code<\/span>\n\n    <span class=\"k\">async<\/span> <span class=\"nf\">fetch<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">await<\/span> <span class=\"nf\">act<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n            <span class=\"k\">await<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">renderResult<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n        <span class=\"p\">});<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"nf\">startFetch<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n        <span class=\"nf\">act<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n            <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">fetchPromise<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">renderResult<\/span><span class=\"p\">.<\/span><span class=\"nx\">current<\/span><span class=\"p\">.<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">();<\/span>\n        <span class=\"p\">});<\/span>\n    <span class=\"p\">}<\/span>\n\n    <span class=\"k\">async<\/span> <span class=\"nf\">finishFetch<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"o\">!<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">fetchPromise<\/span><span class=\"p\">)<\/span> <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Error<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">fetch() not started.<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\n        <span class=\"k\">await<\/span> <span class=\"nf\">act<\/span><span class=\"p\">(<\/span><span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n            <span class=\"k\">await<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">fetchPromise<\/span><span class=\"p\">;<\/span>\n        <span class=\"p\">});<\/span>\n        <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">fetchPromise<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\n    <span class=\"p\">}<\/span>\n<span class=\"p\">}<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0686\u06af\u0648\u0646\u0647 \u0628\u0627 \u0627\u06cc\u0646 \u062a\u0633\u062a \u06a9\u0646\u06cc\u0645<\/strong>:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"nf\">test<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">should show isLoading during fetch<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"kd\">const<\/span> <span class=\"nx\">fetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">renderUseFetchUsers<\/span><span class=\"p\">();<\/span>\n\n  <span class=\"c1\">\/\/ Kick off fetch<\/span>\n  <span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nf\">startFetch<\/span><span class=\"p\">();<\/span>\n\n  <span class=\"c1\">\/\/ Immediately check transitional state<\/span>\n  <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toBe<\/span><span class=\"p\">(<\/span><span class=\"kc\">true<\/span><span class=\"p\">);<\/span>\n\n  <span class=\"c1\">\/\/ Wait for completion<\/span>\n  <span class=\"k\">await<\/span> <span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nf\">finishFetch<\/span><span class=\"p\">();<\/span>\n\n  <span class=\"c1\">\/\/ Post-fetch assertions<\/span>\n  <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toBe<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n<span class=\"p\">});<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u062c\u0648\u0627\u0646\u0628 \u0645\u062b\u0628\u062a<\/strong>:<\/p>\n<ul>\n<li>\u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u062a\u0633\u062a \u0645\u06cc \u062f\u0647\u062f <strong>\u06a9\u0634\u0648\u0631\u0647\u0627\u06cc \u0627\u0646\u062a\u0642\u0627\u0644\u06cc<\/strong> \u062f\u0631\u0633\u062a \u067e\u0633 \u0627\u0632 \u0634\u0631\u0648\u0639 \u0648\u0627\u06a9\u0634\u06cc<\/li>\n<li>\u06a9\u0646\u062a\u0631\u0644 \u0635\u0631\u06cc\u062d \u062a\u0631 \u0632\u0645\u0627\u0646 \u0628\u0646\u062f\u06cc \u0647\u0631 \u0645\u0631\u062d\u0644\u0647.<\/li>\n<\/ul>\n<p><strong>\u0645\u0646\u0641\u06cc<\/strong>:<\/p>\n<ul>\n<li>\u06a9\u0645\u06cc \u067e\u0631\u0645\u062e\u0627\u0637\u0628 \u062a\u0631 &#8211; \u062f\u0648 \u0631\u0648\u0634 \u0641\u0631\u0627\u062e\u0648\u0627\u0646\u06cc (<code>startFetch<\/code>\u060c <code>finishFetch<\/code>) \u0628\u0647 \u062c\u0627\u06cc \u06cc\u06a9\u06cc.<\/li>\n<li>\u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc \u0634\u0645\u0627 \u0631\u0627 \u0627\u0632 \u06cc\u06a9 \u0628\u0647 \u06cc\u06a9 \u0628\u0648\u062f\u0646 \u0628\u0627 API \u0647\u0648\u06a9 \u0634\u0645\u0627 \u062f\u0648\u0631\u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"3_%D8%A2%D8%B2%D9%85%D8%A7%DB%8C%D8%B4_%DB%8C%DA%A9_%D8%AA%D8%A7%D8%A8%D8%B9_%D8%AE%D8%A7%D9%84%D8%B5_%D8%A8%D9%87_%D8%B7%D9%88%D8%B1_%D8%AC%D8%AF%D8%A7%DA%AF%D8%A7%D9%86%D9%87\"><\/span>\n<p>  3. \u0622\u0632\u0645\u0627\u06cc\u0634 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062e\u0627\u0644\u0635 \u0628\u0647 \u0637\u0648\u0631 \u062c\u062f\u0627\u06af\u0627\u0646\u0647<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u062e\u0648\u0627\u0647\u06cc\u062f \u0645\u0646\u0637\u0642 \u0648\u0627\u0642\u0639\u06cc \u0648\u0627\u06a9\u0634\u06cc (\u06cc\u0639\u0646\u06cc \u0628\u062f\u0646\u0647 \u0642\u0644\u0627\u0628 \u0634\u0645\u0627) \u0631\u0627 \u062c\u062f\u0627 \u06a9\u0646\u06cc\u062f <code>fetch<\/code> \u0631\u0648\u0634) \u0628\u0647 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062e\u0627\u0644\u0635\u060c \u0645\u0627\u0646\u0646\u062f <code>doFetch<\/code>\u060c \u06a9\u0647 \u0648\u0627\u0628\u0633\u062a\u06af\u06cc \u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u0645\u06cc \u067e\u0630\u06cc\u0631\u062f (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c <code>setIsLoading<\/code>\u060c <code>fetchUsers<\/code>\u060c <code>setUsers<\/code>\u060c <code>messaging<\/code>) \u0628\u0647 \u062c\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0645\u0633\u062a\u0642\u06cc\u0645 \u0628\u0647 React State. \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc \u0634\u0645\u0627 \u0631\u0627 \u0633\u0627\u062f\u0647\u200c\u062a\u0631 \u0646\u06af\u0647 \u0645\u06cc\u200c\u062f\u0627\u0631\u062f \u0648 \u0628\u0647 \u0634\u0645\u0627 \u0627\u06cc\u0646 \u0627\u0645\u06a9\u0627\u0646 \u0631\u0627 \u0645\u06cc\u200c\u062f\u0647\u062f \u06a9\u0647 \u0628\u0627 \u0631\u0648\u06cc\u06a9\u0631\u062f \u00ab\u0647\u0645\u0647\u200c\u062f\u0631 \u06cc\u06a9\u00bb \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u062d\u0627\u0644\u062a \u0645\u06cc\u0627\u0646\u06cc \u0631\u0627 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0622\u0632\u0645\u0627\u06cc\u0634 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u0631\u0648\u0644 \u06a9\u0646\u06cc\u062f:<\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"c1\">\/\/ useFetchUsers.ts<\/span>\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">doFetch<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/doFetch<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">useFetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">:<\/span> <span class=\"nx\">FetchUsersFn<\/span><span class=\"p\">,<\/span> <span class=\"nx\">messaging<\/span><span class=\"p\">:<\/span> <span class=\"p\">(<\/span><span class=\"nx\">message<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">void<\/span><span class=\"p\">):<\/span> <span class=\"nx\">UseFetchUsersResult<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"kd\">const<\/span> <span class=\"p\">[<\/span><span class=\"nx\">users<\/span><span class=\"p\">,<\/span> <span class=\"nx\">setUsers<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">useState<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">User<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">([]);<\/span>\n    <span class=\"kd\">const<\/span> <span class=\"p\">[<\/span><span class=\"nx\">isLoading<\/span><span class=\"p\">,<\/span> <span class=\"nx\">setIsLoading<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">useState<\/span><span class=\"p\">(<\/span><span class=\"kc\">false<\/span><span class=\"p\">);<\/span>\n\n    <span class=\"kd\">const<\/span> <span class=\"nx\">fetch<\/span> <span class=\"o\">=<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n        <span class=\"k\">await<\/span> <span class=\"nf\">doFetch<\/span><span class=\"p\">({<\/span>\n            <span class=\"nx\">setIsLoading<\/span><span class=\"p\">,<\/span>\n            <span class=\"nx\">fetchUsers<\/span><span class=\"p\">,<\/span>\n            <span class=\"nx\">setUsers<\/span><span class=\"p\">,<\/span>\n            <span class=\"nx\">messaging<\/span><span class=\"p\">,<\/span>\n        <span class=\"p\">});<\/span>\n    <span class=\"p\">};<\/span>\n\n    <span class=\"k\">return<\/span> <span class=\"p\">{<\/span>\n        <span class=\"nx\">users<\/span><span class=\"p\">,<\/span>\n        <span class=\"nx\">isLoading<\/span><span class=\"p\">,<\/span>\n        <span class=\"nx\">fetch<\/span><span class=\"p\">,<\/span>\n    <span class=\"p\">};<\/span>\n<span class=\"p\">};<\/span>\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u0646\u062d\u0648\u0647 \u062a\u0633\u062a \u06a9\u0631\u062f\u0646 \u0628\u0627 \u0627\u06cc\u0646:<\/strong><\/p>\n<div class=\"highlight js-code-highlight\">\n<pre class=\"highlight tsx\"><code><span class=\"c1\">\/\/ doFetch.test.ts<\/span>\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">doFetch<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/doFetch<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\n\n<span class=\"kd\">const<\/span> <span class=\"nx\">DEFAULT_ARGS<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">Object<\/span><span class=\"p\">.<\/span><span class=\"nf\">freeze<\/span><span class=\"p\">({<\/span>\n    <span class=\"nx\">setIsLoading<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">(),<\/span>\n    <span class=\"nx\">fetchUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">(),<\/span>\n    <span class=\"nx\">setUsers<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">(),<\/span>\n    <span class=\"nx\">messaging<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">fn<\/span><span class=\"p\">()<\/span>\n<span class=\"p\">});<\/span>\n\n<span class=\"nf\">describe<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">useFetchUsers - doFetch<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n  <span class=\"nf\">afterEach<\/span><span class=\"p\">(()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n      <span class=\"nx\">jest<\/span><span class=\"p\">.<\/span><span class=\"nf\">clearAllMocks<\/span><span class=\"p\">();<\/span>\n  <span class=\"p\">});<\/span>\n\n  <span class=\"nf\">it<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">should set loading, fetch data, set users, and unset loading on success<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">async <\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\n    <span class=\"c1\">\/\/ Arrange<\/span>\n    <span class=\"kd\">const<\/span> <span class=\"nx\">mockUsers<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[{<\/span> <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">1<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">User 1<\/span><span class=\"dl\">'<\/span> <span class=\"p\">}];<\/span>\n    <span class=\"nx\">fetchUsers<\/span><span class=\"p\">.<\/span><span class=\"nf\">mockResolvedValue<\/span><span class=\"p\">(<\/span><span class=\"nx\">mockUsers<\/span><span class=\"p\">);<\/span>\n\n    <span class=\"c1\">\/\/ Act<\/span>\n    <span class=\"k\">await<\/span> <span class=\"nf\">doFetch<\/span><span class=\"p\">({<\/span>\n      <span class=\"nx\">setIsLoading<\/span><span class=\"p\">,<\/span>\n      <span class=\"nx\">fetchUsers<\/span><span class=\"p\">,<\/span>\n      <span class=\"nx\">setUsers<\/span><span class=\"p\">,<\/span>\n      <span class=\"nx\">messaging<\/span><span class=\"p\">,<\/span>\n    <span class=\"p\">});<\/span>\n\n    <span class=\"c1\">\/\/ Assert<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">setIsLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenNthCalledWith<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"kc\">true<\/span><span class=\"p\">);<\/span>  <span class=\"c1\">\/\/ first call<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">fetchUsers<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenCalledTimes<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">);<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">setUsers<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenCalledWith<\/span><span class=\"p\">(<\/span><span class=\"nx\">mockUsers<\/span><span class=\"p\">);<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">messaging<\/span><span class=\"p\">).<\/span><span class=\"nx\">not<\/span><span class=\"p\">.<\/span><span class=\"nf\">toHaveBeenCalled<\/span><span class=\"p\">();<\/span>\n    <span class=\"nf\">expect<\/span><span class=\"p\">(<\/span><span class=\"nx\">DEFAULT_ARGS<\/span><span class=\"p\">.<\/span><span class=\"nx\">setIsLoading<\/span><span class=\"p\">).<\/span><span class=\"nf\">toHaveBeenNthCalledWith<\/span><span class=\"p\">(<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"kc\">false<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ final call<\/span>\n  <span class=\"p\">});<\/span>\n<span class=\"p\">});<\/span>\n\n<\/code><\/pre>\n<div class=\"highlight__panel js-actions-panel\">\n<div class=\"highlight__panel-action js-fullscreen-code-action\">\n    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-on\"><title>\u0648\u0627\u0631\u062f \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M16 3h6v6h-2V5h-4V3zM2 3h6v2H4v4H2V3zm18 16v-4h2v6h-6v-2h4zM4 19h4v2H2v-6h2v4z\"\/>\n<\/svg><\/p>\n<p>    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" class=\"highlight-action crayons-icon highlight-action--fullscreen-off\"><title>\u0627\u0632 \u062d\u0627\u0644\u062a \u062a\u0645\u0627\u0645 \u0635\u0641\u062d\u0647 \u062e\u0627\u0631\u062c \u0634\u0648\u06cc\u062f<\/title>\n    <path d=\"M18 7h4v2h-6V3h2v4zM8 9H2V7h4V3h2v6zm10 8v4h-2v-6h6v2h-4zM8 15v6H6v-4H2v-2h6z\"\/>\n<\/svg><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>\u062c\u0648\u0627\u0646\u0628 \u0645\u062b\u0628\u062a<\/strong>:<\/p>\n<ul>\n<li>\u0628\u0647 \u0634\u0645\u0627 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f <strong>\u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc<\/strong> \u06a9\u0648\u0686\u06a9 \u0648 \u0645\u062a\u0645\u0631\u06a9\u0632 \u0628\u0645\u0627\u0646\u06cc\u062f: \u0628\u0627 \u0628\u06cc\u0631\u0648\u0646 \u06a9\u0634\u06cc\u062f\u0646 \u0645\u0646\u0637\u0642 \u0628\u0647 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062e\u0627\u0644\u0635\u060c \u0646\u06cc\u0627\u0632\u06cc \u0646\u06cc\u0633\u062a \u06a9\u0647 HRR \u0631\u0627 \u0628\u0627 \u0645\u062f\u06cc\u0631\u06cc\u062a \u0646\u0627\u0647\u0645\u06af\u0627\u0645 \u06af\u0627\u0645 \u0628\u0647 \u06af\u0627\u0645 \u0634\u0644\u0648\u063a \u06a9\u0646\u06cc\u062f.<\/li>\n<li>\n<strong>\u062c\u062f\u0627 \u0645\u06cc \u06a9\u0646\u062f<\/strong> \u06a9\u062f \u0648\u0627\u06a9\u0634\u06cc \u0628\u0631\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 \u0645\u0633\u062a\u0642\u0644: \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0646\u06cc\u062f <em>\u06a9\u0634\u0648\u0631\u0647\u0627\u06cc \u0627\u0646\u062a\u0642\u0627\u0644\u06cc<\/em> (\u0645\u062b\u0644\u0627\u064b \u062a\u0646\u0638\u06cc\u0645 <code>isLoading<\/code> \u0628\u0647 <code>true<\/code>) \u062f\u0631 \u06cc\u06a9 \u0645\u062d\u06cc\u0637 \u0633\u0627\u062f\u0647 \u062a\u0631 \u0628\u062f\u0648\u0646 React.<\/li>\n<\/ul>\n<p><strong>\u0645\u0646\u0641\u06cc<\/strong>:<\/p>\n<ul>\n<li>\u0627\u0636\u0627\u0641\u06cc \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u06a9\u0646\u062f <strong>\u0644\u0627\u06cc\u0647 \u0627\u0646\u062a\u0632\u0627\u0639\u06cc<\/strong>: \u062a\u0642\u0633\u06cc\u0645 \u06a9\u062f \u0628\u0647 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u0628\u06cc\u0634\u062a\u0631\u06cc \u062f\u0627\u0631\u062f.<\/li>\n<\/ul>\n<hr\/>\n<h3><span class=\"ez-toc-section\" id=\"%D8%A7%D8%B2_%DA%A9%D8%AF%D8%A7%D9%85_%DA%AF%D8%B2%DB%8C%D9%86%D9%87_%D8%A7%D8%B3%D8%AA%D9%81%D8%A7%D8%AF%D9%87_%DA%A9%D9%86%DB%8C%D9%85%D8%9F\"><\/span>\n<p>  \u0627\u0632 \u06a9\u062f\u0627\u0645 \u06af\u0632\u06cc\u0646\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645\u061f<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u062f\u0631 \u067e\u0627\u06cc\u0627\u0646 \u0631\u0648\u0632 \u0628\u0633\u062a\u06af\u06cc \u0628\u0647 \u0627\u06cc\u0646 \u062f\u0627\u0631\u062f <strong>\u0686\u06cc<\/strong> \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u062a\u0633\u062a \u06a9\u0646\u06cc\u062f \u0648 <strong>\u0686\u06af\u0648\u0646\u0647<\/strong> \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u0622\u0646 \u0631\u0627 \u062a\u0633\u062a \u06a9\u0646\u06cc\u062f:<\/p>\n<ul>\n<li>\u0627\u06af\u0631 \u0628\u06cc\u0634\u062a\u0631 \u0628\u0647 \u0622\u0646 \u0627\u0647\u0645\u06cc\u062a \u0645\u06cc \u062f\u0647\u06cc\u062f <strong>\u0646\u062a\u0627\u06cc\u062c \u0646\u0647\u0627\u06cc\u06cc<\/strong> (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644\u060c \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0628\u0627\u0631\u06af\u0630\u0627\u0631\u06cc \u0634\u062f\u0647 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u062e\u0637\u0627)\u060c \u062a\u06a9 <code>await fetch()<\/code> \u0631\u0648\u0634 \u06a9\u0627\u0645\u0644\u0627\u064b \u062e\u0648\u0628 \u0627\u0633\u062a<\/li>\n<li>\u0627\u06af\u0631 \u0634\u0645\u0627 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u062f <strong>\u0628\u0631\u0631\u0633\u06cc \u0648\u0636\u0639\u06cc\u062a \u0647\u0627\u06cc \u0645\u06cc\u0627\u0646\u06cc<\/strong>\u060c \u0631\u0648\u06cc\u06a9\u0631\u062f \u062a\u0642\u0633\u06cc\u0645 &#8220;\u0634\u0631\u0648\u0639 \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u067e\u0627\u06cc\u0627\u0646&#8221; \u0627\u0646\u0639\u0637\u0627\u0641 \u067e\u0630\u06cc\u0631\u062a\u0631 \u0627\u0633\u062a.<\/li>\n<li>\u0627\u06af\u0631 \u0634\u0645\u0627 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u06cc\u062f <strong>\u0628\u0631\u0631\u0633\u06cc \u0648\u0636\u0639\u06cc\u062a \u0647\u0627\u06cc \u0645\u06cc\u0627\u0646\u06cc<\/strong> \u0627\u0645\u0627 \u062a\u0631\u062c\u06cc\u062d \u0645\u06cc \u062f\u0647\u0646\u062f a <strong>\u06a9\u0644\u0627\u0633 \u06a9\u0645\u06a9\u06cc \u0633\u0627\u062f\u0647 \u062a\u0631<\/strong> (\u0628\u0647 \u0642\u06cc\u0645\u062a \u0628\u0631\u062e\u06cc \u067e\u06cc\u0686\u06cc\u062f\u06af\u06cc \u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u062f\u0631 \u0642\u0633\u0645\u062a \u062f\u0627\u062e\u0644\u06cc \u0642\u0644\u0627\u0628 \u0634\u0645\u0627)\u060c \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f <strong>\u062a\u0633\u062a \u0648\u0627\u062d\u062f<\/strong> \u0645\u0646\u0637\u0642 \u0648\u0627\u06a9\u0634\u06cc \u0645\u06cc\u0627\u0646\u06cc \u0628\u0647 \u0637\u0648\u0631 \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u062a\u0627\u0628\u0639 \u062e\u0627\u0644\u0635. \u0628\u0647 \u0627\u06cc\u0646 \u062a\u0631\u062a\u06cc\u0628\u060c \u062a\u0633\u062a\u200c\u0647\u0627\u06cc \u0647\u0648\u06a9 \u0634\u0645\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0631 \u0631\u0648\u06cc \u0627\u0646\u062a\u0642\u0627\u0644 \u062d\u0627\u0644\u062a \u0645\u062a\u0645\u0631\u06a9\u0632 \u0634\u0648\u0646\u062f \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0645\u0646\u0637\u0642 \u0627\u0646\u062a\u0642\u0627\u0644\u06cc \u0631\u0627 \u062f\u0631 \u062c\u0627\u06cc \u062f\u06cc\u06af\u0631\u06cc \u0628\u0631\u0631\u0633\u06cc \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%D8%A7%D9%81%DA%A9%D8%A7%D8%B1_%D9%86%D9%87%D8%A7%DB%8C%DB%8C\"><\/span>\n<p>  \u0627\u0641\u06a9\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc<br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u062a\u0633\u062a \u0647\u0645\u0647 \u0686\u06cc\u0632 \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u0633\u062a <strong>\u06a9\u0633\u0628 \u0627\u0639\u062a\u0645\u0627\u062f \u0628\u0647 \u0646\u0641\u0633<\/strong> \u06a9\u0647 \u06a9\u062f \u0634\u0645\u0627 \u0645\u0637\u0627\u0628\u0642 \u0627\u0646\u062a\u0638\u0627\u0631 \u0639\u0645\u0644 \u0645\u06cc \u06a9\u0646\u062f. <strong>\u062b\u0627\u0628\u062a \u0645\u0627\u0646\u062f\u0646<\/strong> \u0646\u062d\u0648\u0647 \u0646\u0648\u0634\u062a\u0646 \u0648 \u0633\u0627\u0632\u0645\u0627\u0646\u062f\u0647\u06cc \u0622\u0632\u0645\u0648\u0646\u200c\u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627\u0647\u06cc 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