QUnit - 預期斷言

我們可以使用 assert.expect() 函式檢查測試中進行的斷言數。在以下示例中，我們期望在測試中進行三個斷言。

<html>
   <head>
      <meta charset = "utf-8">
      <title>QUnit basic example</title>
      <link rel = "stylesheet" href = "https://code.jquery.com/qunit/qunit-1.22.0.css">
      <script src = "https://code.jquery.com/qunit/qunit-1.22.0.js"></script>
   </head>
   
   <body>
      <div id = "qunit"></div>
      <div id = "qunit-fixture"></div> 
      <script>
         QUnit.test( "multiple call test()", function( assert ) {
            assert.expect( 3 );
            var done = assert.async( 3 );
            
            setTimeout(function() {
               assert.ok( true, "first callback." );
               done();
            }, 500 );

            setTimeout(function() {
               assert.ok( true, "second callback." );
               done();
            }, 500 );

            setTimeout(function() {
               assert.ok( true, "third callback." );
               done();
            }, 500 );
         });		 
      </script>
   </body>
</html>

驗證輸出

您應該看到以下結果 -

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