INTERDEPENDENT TEST CASES

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Issue Summary

Test cases depend on each other, that is they can only be executed in a fixed sequence

Category

Design

Examples

Test cases must be executed in a fixed sequence because the preceding test cases create the initial conditions for the following ones.

Questions

Who designed the test cases, and for what purpose? Are manual test cases being automated "as is"?

If so, this can cause problems, because what makes sense for manual testing may not be the most appropriate solution for automated tests, particularly the dependencies of tests on each other. If one of a sequence of manual tests fails, the tester can usually find a way to continue testing, possibly by inserting the data that should have been produced by the failing test. But the tool will simply be "stopped in its tracks" by a failing test - it's not possible or practical to anticipate all possible ways that all tests can fail so that an automated solution can be implemented.

See also MANUAL MIMICRY - an issue describing what happens when you try to automate manual tests too literally.

Resolving Patterns

Most recommended:


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B5