@Mock creates a mock. @InjectMocks creates an instance of the class and injects the mocks that are created with the @Mock (or @Spy) annotations into this instance. Note you must use @RunWith(MockitoJUnitRunner.class) or Mockito.initMocks(this) to initialize these mocks and inject them (JUnit 4). With JUnit 5, you must use @ExtendWith(MockitoExtension.class). @RunWith(MockitoJUnitRunner.class) // JUnit 4 // … Read more
This prose by Alberto Savoia answers precisely that question (in a nicely entertaining manner at that!): http://www.artima.com/forums/flat.jsp?forum=106&thread=204677 Testivus On Test Coverage Early one morning, a programmer asked the great master: “I am ready to write some unit tests. What code coverage should I aim for?” The great master replied: “Don’t worry about coverage, just write … Read more
Karma or Protractor Karma is a JavaScript test-runner built with Node.js and meant for unit testing. The Protractor is for end-to-end testing and uses Selenium Web Driver to drive tests. Both have been made by the Angular team. You can use any assertion-library you want with either. Screencast: Karma Getting started related: Should I be … Read more
Look, there’s no easy way to do this. I’m working on a project that is inherently multithreaded. Events come in from the operating system and I have to process them concurrently. The simplest way to deal with testing complex, multithreaded application code is this: If it’s too complex to test, you’re doing it wrong. If … Read more
Unit test: Specify and test one point of the contract of single method of a class. This should have a very narrow and well defined scope. Complex dependencies and interactions to the outside world are stubbed or mocked. Integration test: Test the correct inter-operation of multiple subsystems. There is whole spectrum there, from testing integration … Read more
Even more meaningful : import static org.mockito.Mockito.never; import static org.mockito.Mockito.verify; // … verify(dependency, never()).someMethod(); The documentation of this feature is there §4 “Verifying exact number of invocations / at least x / never”, and the never javadoc is here.
You can get some information : From Martin Fowler about Mock and Stub Fake objects actually have working implementations, but usually take some shortcut which makes them not suitable for production Stubs provide canned answers to calls made during the test, usually not responding at all to anything outside what’s programmed in for the test. … Read more
The best solution in my opinion is to use the unittest command line interface which will add the directory to the sys.path so you don’t have to (done in the TestLoader class). For example for a directory structure like this: new_project ├── antigravity.py └── test_antigravity.py You can just run: $ cd new_project $ python -m … Read more
For “Visual Studio Team Test” it appears you apply the ExpectedException attribute to the test’s method. Sample from the documentation here: A Unit Testing Walkthrough with Visual Studio Team Test [TestMethod] [ExpectedException(typeof(ArgumentException), “A userId of null was inappropriately allowed.”)] public void NullUserIdInConstructor() { LogonInfo logonInfo = new LogonInfo(null, “P@ss0word”); }
One unit testing framework in C is Check; a list of unit testing frameworks in C can be found here and is reproduced below. Depending on how many standard library functions your runtime has, you may or not be able to use one of those. AceUnit AceUnit (Advanced C and Embedded Unit) bills itself as … Read more