v8/test/message/README.md
Clemens Backes 5839231f7b [test] Automatically add --no-stress-opt to message tests
Message tests check the output of a test against an expected file.
Executing with --stress-opt changes the output, since the test will be
run multiple times. For that reason, most message tests explicitly add
the --no-stress-opt flag.

Since this is redundant, and not a per-test setting, just configure this
globally for all message tests instead.

R=machenbach@chromium.org

Bug: v8:12425
Change-Id: I52f1b43da2781fcb6f6bd37e67d483ca69c1c929
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3471637
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79164}
2022-02-18 08:51:12 +00:00

600 B

JavaScript tests with expected output

Tests in test/message pass if the output matches the expected output. Message tests are particularly useful when checking for exact error messages.

Tests and their expected output must have the same filename, with the .js and .out extension.

foo.js
foo.out

You can use a regex in the expected output instead of the exact path:

*%(basename)s:7: SyntaxError: Detected cycle while resolving name 'a'

Empty lines are ignored in the comparison, but whitespaces are not.

Exact details of the test runner are in testcfg.py.