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Test isolation is (not) fun
- Test isolation involves ensuring that individual tests do not interfere with each other in automated testing.
- Challenges in test isolation can arise due to user contexts, such as personalized cookie settings, in the browser.
- Test isolation principles often conflict with the temptation to combine tests for efficiency, impacting parallelization.
- Proper isolation is crucial for parallel test execution, requiring separate entities like user accounts for each test.
- Data isolation in testing involves managing data movements like creating users, preparing test environments, and cleaning up data.
- Isolating data between tests, sequential test runs, and parallel runs is essential to avoid conflicts and ensure test stability.
- A data factory pattern can be used to generate unique data sets for each test, reducing conflicts in parallel test execution.
- Cleaning up test data before or after test execution is crucial to prevent data accumulation and system slowdowns.
- Continuous evolution of data isolation strategies is necessary to align with changing product needs and improve test suite efficiency.
- At Octomind, a test factory pattern is used to ensure test isolation by generating unique data for each test, enabling parallel execution and preventing data collisions.
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