jsassert

jsassert is a JavaScript unit tests framework which make uses of fluent assertions.

Test suites

A test suite is a list of several test cases that check a certain area of code. To add a test suite to the execution just use the following code:

JSAssert.addTestSuite("MyTestSuite", {
    testCase1: function() {},
    testCase2: function() {}
});

If you want to setup some variables (executed when test suite is added to the list not when test is executed):

JSAssert.addTestSuite("MyTestSuite", (function() {
    // Set-up some variables here
    var object = { name: 'John Doe' };

    // Expose test cases
    return {
        testCase1: function() {
			// Use object here...
		},
        testCase2: function() {
			// ...or here
		}
    };
}()));

Test cases

A test case is simply a JavaScript function which is invoked by the framework. If an exception is thrown by the method, the test is marked as failed, else it is marked as passed. Assertions throw exceptions if they fail.

Assertions

Introduction

For now, jsassert framework supports assertions for the following types of data: number, boolean, string, array, object. To use an assertion, simply starts with assertThat(myObject).

At this point you can call several methods:

var number = 5;
assertThat(number).isNotZero();
assertThat(number).isGreaterThan(0);
assertThat(number).equals(5);

Or in chained version:

var number = 5;
assertThat(number).isNotZero().isGreaterThan(0).equals(5);

Every assertion methods has an optional message parameter which is used when the assertion fails.

Assertions on number

• equals (expected)
  Check that the number equals the expected value.
  expected: the expected value of the number.

• isZero ()
  Verify that the number equals 0.

• isNotZero ()
  Verify that the number does not equals 0.

• isGreaterThan (value)
  Verify that the number is greater than the value.
  value: the value to compare with the number.

• isGreaterOrEqualsTo (value)
  Verify that the number is greater or equals to the value.
  value: the value to compare with the number.

• isLowerThan (value)
  Verify that the number is lower than the value.
  value: the value to compare with the number.

• isLowerOrEqualsTo (value)
  Verify that the number is lower or equals to the value.
  value: the value to compare with the number.

Assertions on boolean

• isTrue ()
  Check that the boolean value is true.

• isFalse ()
  Check that the boolean value is false.

• equals (expected)
  Check that the booleans equals the expected value.
  expected: the expected value of the boolean.

Assertions on string

• length ()
  Retrieve assertions based on string length.

• equals (expected)
  Check that the string equals the expected value.
  expected: the expected value of the string.

• contains (value)
  Check that the string contains the value.
  value: the value to find in the string.

• startsWith (value)
  Check that the string starts with the value.
  value: the value to find in the string.

• endsWith (value)
  Check that the string ends with the value.
  value: the value to find in the string.

• matches (regexp)
  Check that the string matches the regular expression.
  regexp: the regular expression to match.

Assertions on object

• equals (expected)
  Check that the two objects are equals.
  expected: the expected value of the object.

• has (property)
  Check the existence of a property in the object.
  property: the name of the property to check.

• property (property)
  Retrieve assertions based on the object property value.
  property: the name of the property to access.

Assertions on array

• length ()
  Retrieve assertions based on array length.

• equals (expected)
  Check that the two arrays are equals.
  expected: the expected array.

• contains (element)
  Check that the array contains the element.
  element: the element to find in the array.

Examples

For a complete example you can have a look at the demo directory, you just have to open the index.html file. Refresh the page to execute tests again.

Contributing

• Fork it.
• Create a branch (git checkout -b my_markup)
• Commit your changes (git commit -am "Added Snarkdown")
• Push to the branch (git push origin my_markup)
• Create an Issue with a link to your branch
• Enjoy a refreshing Diet Coke and wait