Sample code details for JavaScript unit testing using QUnit
Details of sample code for JavaScript unit testing using QUnit
Introduction
QUnit is a powerful JavaScript unit testing framework. It can be used for testing jQuery, jQuery UI and jQuery Mobile projects, as well as any project written using JavaScript code.
Running environment
Any Html and JavaScript editor (Visual Studio 2013)
Download reference js and css file
Add QUnit to unit test
Add QUnit.js and QUnit.css to the HTML page you want to test.
<script src="//code.jquery.com/qunit/qunit-1.22.0.js"></script> <link rel="stylesheet" href="https://code.jquery.com/qunit/qunit-1.22.0.css">
Create a JavaScript class that needs to be unit tested
Put the code to be unit tested into a separate js file (Calculations.js):
// Create Calculation class.
var Calculation = function () { };
// Add Addition to method to the Calculation class.
Calculation.prototype.Add = function (a, b) {
return a + b;
};
// Add Subtraction method to the Calculation class.
Calculation.prototype.Substraction = function (a, b) {
return a - b;
};
// Add Multiplication method to the Calculation class.
Calculation.prototype.Multiplication = function (a, b) {
return a * b;
};
// Add pision method to the Calculation class.
Calculation.prototype.pision = function (a, b) {
return a / b;
};is the above Method to create a unit test case
The following code is the unit test case for the above JavaScript method. We also put it in a separate js file (UnitTest.js):
// Instantiate Calculation class.
var c = new Calculation();
// Unit test for addition.
QUnit.test("Addition Test", function (assert) {
assert.ok(c.Add(2, 3) == "5", "Passed!");
});
// Unit test for subtraction.
QUnit.test("Substraction Test", function (assert) {
assert.ok(c.Substraction(3, 2) == "1", "Passed!");
});
// Unit test for pision.
QUnit.test("pision Test", function (assert) {
assert.ok(c.pision(5, 5) == "1", "Passed!");
});
// Unit test for multiplication.
QUnit.test("Multiplication Test", function (assert) {
assert.ok(c.Multiplication(5, 5) == "25", "Passed!");
});Reference all js and css files in the HTML code
Create a p tag with the id of qunit and qunit-fixture in the HTML code.
<link rel="stylesheet" href="https://code.jquery.com/qunit/qunit-1.22.0.css"> <script src="~/Scripts/Calculations.js"></script> <p id="qunit"></p> <p id="qunit-fixture"></p> <script src="//code.jquery.com/qunit/qunit-1.22.0.js"></script> <script src="~/Scripts/UnitTest.js"></script>
QUnit test result window
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