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TODO tracking

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Michael Hoennig
2022-07-31 15:16:49 +02:00
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doc/test-concept.md
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@ -11,22 +11,11 @@
### General Issues
The following test concept uses the terms "double" and "mock" (maybe in inflected form like "mocking" or "mocked"), "whitebox-test" and "blackbox-tests" which I would like to define first.
The following test concept uses terms like "double" and "mock" (maybe in inflected form like "mocking" or "mocked"), "whitebox-test" and "blackbox-tests" and "test-fixture".
Please look up their definition in the [glossary](glossary.md)
#### Test-Doubles, Dummies, Fakes, Mocks, Spies and Stubs
A "double" is a general term for something which replaces a real implementation of a dependency of the unit under test.
This can be a "dummy", a "fake", a "mock", a "spy" or a "stub".
Often the term "mock" is used in a generic way, because typical mocking libraries like *Mockito* can also be used as dummies or spies and can replace fakes.
A fake would be a double without using any library, but rather a manual fake implementation of a dependency.
Where our APIs should be designed in a way that it's possible, using a mocking library like *Mockito* often leads to shorter test code.
#### Whitebox- and Blackbox-Tests
A whitebox-test knows and considers the internals of an implementation, e.g. it knows which dependencies it needs and can test special, implementation-dependent cases.
A blackbox-test does not know and not consider such internals of an implementation, it just tests externally observable behaviour.
### Kinds of Tests
@ -35,7 +24,9 @@ Depending on the concrete aspects which we want to test, we are using different
#### Unit-Tests
In this project a *Unit* for *UnitTests* can be a single method (function), a class or even a group of classes which express a common concept.
The unit are whitebox-tests and count into test-code-coverage.
The unit are technically whitebox-tests and count into test-code-coverage.
But the whitebox-knowledge should only be used for the text-fixture.
Unit-Test in this project are implemented with *JUnit Jupiter*, *Mockito* and *AssertJ*.