This changes the default behavior of jstests.py to skip loading the wpt manifest if the user specified a particular test or tests to run on the command line. This should not affect anything that runs on our CI infrastructure, while making individual tests run much faster for engine hackers. With this change, running an individual test on my machine takes 0.5s (down from 5s).
Bug 1515039 Comment 10 Edit History
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This changes the default behavior of jstests.py to skip loading the wpt manifest if the user specified a particular test or tests to run on the command line. This should not affect anything that runs on our CI infrastructure, while making individual tests run much faster for engine hackers. With this change, running an individual test on my machine takes 0.5s (down from 5s).