Using Fixtures with pifpaf
Explore how to use pifpaf fixtures in unit tests to launch and manage memcached instances before each test. Understand the importance of fresh environments for reliable test outcomes and learn methods to simulate failure scenarios such as service interruption and restarts. This lesson guides you through improving test reliability and robustness in distributed Python systems by covering edge cases and exception handling.
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While it is possible to run pifpaf globally around a test suite, it is also possible to use it inside tests and orchestrate some of its behavior.
pifpaf exports its drivers as test fixtures. In unit testing, fixtures represent components that are set up before a test and cleaned up after the test is finished. It is usually a good idea to build a specific kind of component for them, as they are reused in a lot of different places. In this case, pifpaf exports objects that represent the daemon launched. The object is initialized before each test and reset to its default values when the test is completed.
Testing using pifpaf and fixtures
In the following example, the test sets up a memcached instance before running each test. While this is slower and more expensive than using a memcached for all the tests, it makes sure that each test runs on top of ...