bazel-lib/docs/diff_test.md

A test rule that compares two binary files or two directories.

Similar to bazel-skylib's diff_test but also supports comparing directories.

The rule uses a Bash command (diff) on Linux/macOS/non-Windows, and a cmd.exe command (fc.exe) on Windows (no Bash is required).

diff_test

diff_test(name, file1, file2, size, timeout, kwargs)

A test that compares two files.

The test succeeds if the files' contents match.

PARAMETERS

Name	Description	Default Value
name	The name of the test rule.	none
file1	Label of the file to compare to <code>file2</code>.	none
file2	Label of the file to compare to <code>file1</code>.	none
size	standard attribute for tests	None
timeout	standard attribute for tests. Defaults to "short" if both timeout and size are unspecified.	None
kwargs	The <a href="https://docs.bazel.build/versions/main/be/common-definitions.html#common-attributes-tests">common attributes for tests</a>.	none