A simple custom Javascript TDD Framework that requires minimal setup. Open Source
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<script src="/path/to/your/tester.js"></script>Please also ensure that your HTML file contains <body> tags; otherwise, the JSTester will not work as expected.
Spec methods are methods used to group and execute test cases. Some spec methods are required for the tests to execute properly.
Test.describe is the most basic of all spec methods used to group test cases to run against an algorithm. All test code MUST be placed in a Test.describe block in order to be executed properly.
Test.describe("Custom Message to describe Algorithm or Code - pass in empty string to use default message", function () {
// The code to be executed
});Test.it is used to subcategorise and group related test cases. Test.it is not required but it is highly recommended that you use it. However, please note that Test.it must be nested in a Test.describe block to execute properly.
Test.describe("The Algorithm", function () {
Test.it("Custom Message - pass in empty string to use default", function () {
// The sub-group of tests to be executed
});
Test.it("Another sub-group of test cases", function () {
// Another group of tests to be executed
});
});Test.expect(passed[, msg[, success]]);The most basic of all assertion methods; all other methods build upon Test.expect. Test.expect expects at least one argument (passed) which is a value that evaluates to true or false. If the value provided is truthy (e.g. 1, true, any string other than an empty string, etc.) then the test passes; otherwise it fails. The msg and success parameters are optional. msg is the message displayed upon a failed test and success is the message displayed upon a successful test.
Test.assertEquals(actual, expected[, msg[, success]]);Checks whether the actual value is identical to (===) the expected value. Passes the test if they are identical; fails otherwise. Again, msg and success are optional (explained above).
Test.assertNotEquals(actual, unexpected[, msg[, success]]);Verifies that the actual value is not identical to (!==) the unexpected value. If the two values are identical then the test fails. msg and success are optional.
Test.assertSimilar(actual, expected[, msg[, success]]);Very similar to Test.assertEquals except that it also works with arrays and objects. This is achieved through JSON.stringify.
Test.assertNotSimilar(actual, unexpected[, msg[, success]]);Very similar to Test.assertNotEquals except it also works on arrays and objects by using JSON.stringify.
Test.expectError([msg, ]fn[, success]);Used to check whether a block of code (fn) contains any errors. Upon error, the test passes. If the block of code passed in contains no errors then the test fails. Can catch any error except for syntax errors. msg and success are optional but since msg is before fn, pass in an empty string as the first argument to use default failing message.
Test.expectNoError([msg, ]fn[, success]);Checks a block of code for any errors. Very similar to Test.expectError but this assertion method passes the test when the function fn contains no errors.
Test.randomNumber accepts no arguments and returns a random integer from 0 to 100 (both inclusive).
Test.randomToken([length]);Test.randomToken optionally accepts an integer length which specifies the length of the random string. The random string generated will contain only lowercase letters and digits. If the length is not specified it defaults to 10.
e.g.
Test.randonToken() -> "s9nh1l87b6"
Test.randomToken(1) -> "g"
Test.randomToken(5) -> "01mhg"
Test.randomToken(50) -> "dkinhdf56hlkj98nbhgh654878junh56g74f3k1a8jjn6bv56c"
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