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| -rw-r--r-- | tests/wpt/README.md | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/wpt/README.md b/tests/wpt/README.md index 2d3a959f36f..ecd2de1415c 100644 --- a/tests/wpt/README.md +++ b/tests/wpt/README.md @@ -134,3 +134,21 @@ The `mozilla` directory contains tests that cannot be upstreamed for some reason (e.g. because they depend on Servo-specific APIs), as well as some legacy tests that should be upstreamed at some point. When run they are mounted on the server under `/_mozilla/`. + +Analyzing reftest results +========================= + +Reftest results can be analyzed from a raw log file. To generate this run +with the `--log-raw` option e.g. + + ./mach test-css --log-raw css.log + +This file can then be fed into the +[reftest analyzer](http://hoppipolla.co.uk/410/reftest-analyser-structured.xhtml) +which will show all failing tests (not just those with unexpected results). +Note that this ingests logs in a different format to original version of the +tool written for gecko reftests. + +The reftest analyzer allows pixel-level comparison of the test and reference +screenshots. Tests that both fail and have an unexpected result are marked +with a `!`. |