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Changes for page Mocking

Last modified by chrisby on 2023/11/28 22:32
From version 1.5
edited by chrisby
on 2023/05/29 12:21
Change comment: There is no comment for this version
To version 1.10
edited by chrisby
on 2023/11/28 22:29
Change comment: There is no comment for this version

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1 -Software Architecture.Testing.WebHome
1 +Software Engineering.Testing.WebHome
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1 1  === Purpose ===
2 2  
3 -* Mocking simplifies unit testing by replacing the dependencies of the unit being tested with simplified, simulated versions called mocks.
4 -* Example: Consider a unit under test that relies on a database. In testing, the database can be mocked to return a static value, eliminating the need for an actual database.
3 +* **Mocking simplifies unit testing by replacing the dependencies** of the unit being tested with simplified, simulated versions called mocks. Example: Consider a unit under test that relies on a database. In testing, the database can be mocked to return a static value, eliminating the need for an actual database.
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5 +
6 6  === Benefits of Mocking ===
7 7  
8 8  * Isolation of units to test each unit separately, dramatically reducing complexity and increasing test execution speed by replacing loaded modules with mocks.
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11 11  * Injection of test-specific behaviors not present in production code.
12 12  * Enables the simulation of indirect dependencies by letting mocks return other mocks.
13 13  
14 +=== ===
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14 14  === Types of Mocks ===
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16 16  (% style="text-align: justify;" %)
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18 18  
19 19  * **Stubs**: Simplest form, returning a hardcoded value or providing an empty method body.
20 20  * **Fake object**: Include minimal logic to handle different case scenarios.
21 -* **Spy**: Injected to capture interaction data with fake objects when such data is not directly accessible.
22 -* **Mock objects**: Contain complex logic, simulate behaviors such as computation and exception handling, and even run tests.
23 +* **Spy**: Records internal data of the unit being tested when such data is not directly accessible.
24 +* **Mock object**: Contains complex logic, simulates behaviors such as computation and exception handling, and can even run tests.
23 23  
26 +=== ===
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24 24  === Tips ===
25 25  
26 -* **Mock third-party libraries in unit tests** to ensure proper unit functionality. Instead, use these libraries in component and integration tests.
30 +* **Mock third-party libraries in unit tests** to ensure proper unit functionality. However, they should not be mocked in component and integration tests.
27 27  * Aim for a **minimal number of dependencies in a unit** for easier testing and mocking:
28 28  ** Limit dependencies in a unit in a similar way to the best practices for function arguments: the fewer the better, with an absolute maximum of three.
29 29  ** Prefer many small classes/units to one large one for easier testing.