#Testing

mocha.js Mocha is a JavaScript test framework running on Node Links mochajs.org Read more

monkey-patching It replacement of attributes, methods of classes in runtime It replacement of … Read more

Rewire The library that provides the ability to do monkey-patching Links GitHub repo Read more

Sinon.js The library that provides the ability to write Mocks, Stubs, Spies It works with any … Read more

Test Driven Development The concept of testing that can be describes by idea “tests … Read more

Test Runner Test Runner is a program that runs tests Required features: Run tests in parallel … Read more

(Anti-)fragility in testing Test is anti fragile if module’s test is green after refactoring … Read more

Arrange-Act-Assert AAA is a pattern for structure Unit test Follow the AAA Arrange in unit test Act … Read more

Test Doubles Dummy (Dummy Object) doesn’t have any data inside can be empty object {} just … Read more

End-to-End tests End-to-End (e2e) tests are tests that emulate user’s behaviour. Basically, … Read more

Integration tests Integration tests are tests that check behavior of group of modules Read more

Pyramid of testing Types of testing (from less to more): e2e End-to-End tests e2e should be less … Read more

Unit tests Unit tests are tests of modularity They test specific part/piece of the system (called … Read more