mypy.test.testfinegrained

Test cases for fine-grained incremental checking.

Each test cases runs a batch build followed by one or more fine-grained incremental steps. We verify that each step produces the expected output.

See the comment at the top of test-data/unit/fine-grained.test for more information.

N.B.: Unlike most of the other test suites, testfinegrained does not rely on an alt_lib_path for finding source files. This means that they can test interactions with the lib_path that is built implicitly based on specified sources.