YUI Resources for TDD/BDD w/ YUI3 Test

limitations.md

YUI3 Test Limitations

• YUI3 Test does not support Data Providers for Parameterized Testing. You are welcome to use the extremely hacky solution that I came up with.
• Because checking for failures (errors/exceptions) must be defined as a separate hash by name, you end up with a lot of duplication and potential for errors if you forget to rename the item in the "error" hash after renaming the test method.
• Because checking for failures (errors/exceptions) must be defined as a separate hash by name, you lose the ability to dynamically check for errors/exceptions.

parameterized-testing-hack.md

Parameterized Testing Hack

NOTE: This is hacky; since parameterized test aren't baked into the testing framework, things like "Intentional Errors" are a bit awkward and definitely not DRY. I would stay away from this if you absolutely need "Intentional Errors" for these tests; otherwise, it is passable (albeit, quite fugly):

// This must be AFTER "new Y.Test.Case({...});" so these tests will always run after those defined within
Y.Array.each([['  Hello world!', 'Hello world!'], ['  Hello world!   ', 'Hello world!']], function(input){
  testCase['string "' + input[0] + '" should have leading and trailing spaces removed'] = function(){
    var actual = input[1],
        result = input[0].replace(/^\s+|\s+$/g, '');
    Y.Assert.areEqual(result, actual);
  }
});

NOTE++: Before you ask...No, iterating over an array and calling Y.Assert multiple times is not a solution. This would cause two problems:

1. It will only count as ONE test with multiple assertions.
2. You are using multiple assertions in a single test method...if one of them fails, how do you know which one failed without further debugging?

resources.md

YUI3 Test Resources

• YUI3 Test Skeleton Setup: for testing your YUI3 powered modules
• YUI > Developer Tools > Test
• Example Test
• Professional Tools: Writing Unit Tests
• YUI > Developer Tools > Test (Intentional Errors)
• MDN JavaScript Error Constructors