QUnit - Execution Procedure

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This chapter explains the execution procedure of methods in QUnit, that states which method is called first and which one after that. Following is the execution procedure of the QUnit test API methods with an example.

Live Demo 
<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.module( "Module A", {
            beforeEach: function( assert ) {
               assert.ok( true, "before test case" );
            }, afterEach: function( assert ) {
               assert.ok( true, "after test case" );
            }
         });
         
         QUnit.test( "test case 1", function( assert ) {
            assert.ok( true, "Module A: in test case 1" );
         });
         
         QUnit.test( "test case 2", function( assert ) {
            assert.ok( true, "Module A: in test case 2" );
         });
		 		 
         QUnit.module( "Module B" );		
         QUnit.test( "test case 1", function( assert ) {
            assert.ok( true, "Module B: in test case 1" );
         });
         
         QUnit.test( "test case 2", function( assert ) {
            assert.ok( true, "Module B: in test case 2" );
         });		 
      </script>
   </body>
</html>

Verify the Output

You should see the following result −

This is how the QUnit execution procedure is.

  • The module is used to group test cases.

  • beforeEach() method executes for each test case however before executing the test case.

  • afterEach() method executes for each test case however after the execution of test case.

  • In between beforeEach() and afterEach() each test case executes.

  • Calling QUnit.module() again, simply reset any beforeEach/afterEach functions defined by another module previously.

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