Pytest finds files to test by searching for files with names that match the pattern specified in the pytest command. By default, pytest looks for files with names starting with "test_" or ending with "_test". However, this pattern can be customized by using command line options or configuration files. Pytest can also recursively search directories for test files, allowing for a flexible and scalable approach to organizing test code.
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What is the resolution method pytest uses to handle duplicate test files during test discovery?
Pytest uses a "first found, first used" resolution method to handle duplicate test files during test discovery. This means that pytest will use the first test file it finds with a specific name and ignore any subsequent files with the same name. This helps prevent duplicate test files from causing conflicts or overwriting each other during test execution.
How does pytest determine which files to test?
pytest automatically discovers and runs tests in files that match certain naming conventions. By default, pytest will look for files that start with test_ or end with _test.py. You can also specify specific files or directories to test using command-line arguments or configuration files. Additionally, pytest can be configured to find tests using custom matching patterns or plugins.
How does pytest identify test files?
Pytest identifies test files by using naming conventions and specific file structures. By default, Pytest looks for files that start with "test_" or end with "test" and contain test functions defined using specific naming conventions, such as starting with "test". Pytest also recursively searches directories for test files and imports them as modules. Additionally, Pytest can be configured to recognize test files based on custom markers or patterns provided in the configuration settings.
How does pytest resolve conflicts when multiple test files are found with the same name?
When multiple test files are found with the same name in a pytest run, pytest resolves conflicts by running all the test files that have the same name in the order in which they were discovered.pytest considers test files in alphabetical order, so the first test file that is found will be run first, followed by the next test file with the same name.
It is recommended to avoid having multiple test files with the same name to prevent confusion and potential conflicts. If you do have multiple test files with the same name, consider renaming them to have unique names to ensure that the tests are run in the desired order and to prevent any unexpected behavior.
How does pytest handle test files that are encrypted or password-protected?
Pytest does not have built-in support for handling encrypted or password-protected test files. If you have encrypted or password-protected files that are required for your tests, you would need to decrypt or unlock them before running the tests. This can be done using external libraries or tools in your test setup code before invoking pytest. pytest itself does not provide any special handling for encrypted or password-protected files.
How does pytest scan directories for test files?
Pytest scans directories for test files by searching for files with names that start with "test_" or end with "_test.py". It will recursively scan subdirectories for these test files to collect all available tests. Additionally, pytest can be configured to look for test files with different naming conventions or in specific directories using command line arguments or configuration files.pytest can also filter tests based on markers, custom configuration settings, or specific patterns in the test file names.
