Impl

Tears down the workspace at the end of a test run, shutting down any in-process Mill background servers

Evaluates a Mill command. Essentially the same as os.call, except it provides the Mill executable and some test flags and environment variables for you, and wraps the output in a IntegrationTester.EvalResult for convenience.

Helper method to modify a file containing text during your test suite.

Helpers to read the .json metadata files belonging to a particular task (specified by selector0) from the out/ folder.

Prepares to evaluate a Mill command. Run it with IntegrationTester.PreparedEval.run or spawn it with IntegrationTester.PreparedEval.spawn.

Useful when you need the IntegrationTester.PreparedEval.clues.

Spawns a Mill command as a subprocess with automatic stdout/stderr capture.

Returns a SpawnedProcess that wraps the subprocess and captures all output. Each line printed to stdout/stderr is both captured in buffers and printed to console. If stdout or stderr are specified, they will be used instead of the automatic capture.

Initializes the workspace in preparation for integration testing

Remove any ID files to try and force them to exit

The working directory of the integration test suite, which is the root of the Mill build being tested. Contains the build.mill file, any application code, and the out/ folder containing the build output

Each integration test that runs in the same baseWorkspacePath is given a new folder for isolation purposes; even though we try our best to clean up the processes and files from each Mill run, it still doesn't work 100%, and re-using the same folder can cause non-deterministic interference and flakiness