11. Types of tests
⢠Unit
⢠Functional
⢠Load
⢠Soak
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12. Unit tests
⢠They test units of code in isolation
⢠Interaction between components
⢠Describe the behaviour
⢠Drive the design
⢠Fast execution
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13. Be careful
⢠Test just public interfaces
⢠Do not abuse of mocking
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14. Adding a new class is not the trigger for a new test.
The trigger is the implementation of a new requirement.
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15. Functional tests
⢠They test the interaction with components
outside the context of our application
⢠They assure integration
⢠They might be slow
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16. public class When_getting_an_object_from_the_db
{
static int _objectId;
static DbWrapper _sut;
static object _object;
Establish that_there_is_an_object = ()=>
{
_objectId = 100;
ManuallyAddAnObjectInTheDb(_objectId);
}
Because we_get_the_object = ()=> _object = _sut.Get(_objectId);
It should_get_the_object = ()=> _object.ShouldNotBeNull();
}
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17. public class When_storing_an_object_in_the_db
{
static int _objectId;
static DbWrapper _sut;
static object _object;
Establish we_have_an_object_to_save = ()=>
{
_objectId = 100;
}
Because we_save_the_object = ()=> _object = _sut.Save(_objectId);
It should_store_the_object = ()=> _sut.Get(_objectId).ShouldNotBeNull();
}
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18. Be careful
⢠Do not mix tests
⢠Use context builders for data fixture
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19. Load tests
⢠Feedback on performance
⢠Feedback on volume limit
⢠Complicated to write
⢠Slow execution
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22. Types of tests
⢠End to end
⢠Integration
⢠Exploratory
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23. End to end tests
⢠They test the whole scope of a feature
⢠They are acceptance tests
⢠Understandable from non-techincal persons
⢠Slow execution
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24. They are not (only) interface tests.
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25. Integration tests
when the end to end aren't brave enough
⢠They test pieces of the application
⢠They test the integration
⢠Slow execution
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