1395219 - './mach reftest' is broken with "The error occurred in code that was called by the mach command"

Status: RESOLVED DUPLICATE of bug 1392640

(Firefox Build System :: Mach Core, enhancement)

Description

[Jonathan Watt [:jwatt]]

$ ./mach reftest
Error running mach:

    ['reftest']

The error occurred in code that was called by the mach command. This is either
a bug in the called code itself or in the way that mach is calling it.

You should consider filing a bug for this issue.

If filing a bug, please include the full output of mach, including this error
message.

The details of the failure are as follows:

AssertionError

  File "layout/tools/reftest/mach_commands.py", line 205, in run_reftest
    return self._run_reftest(**kwargs)
  File "layout/tools/reftest/mach_commands.py", line 234, in _run_reftest
    return reftest.run_desktop_test(**kwargs)
  File "layout/tools/reftest/mach_commands.py", line 92, in run_desktop_test
    rv = runreftest.run_test_harness(parser, args)
  File "layout/tools/reftest/runreftest.py", line 765, in run_test_harness
    return reftest.runTests(options.tests, options)
  File "layout/tools/reftest/runreftest.py", line 429, in runTests
    return self.runSerialTests(manifests, options, cmdargs)
  File "layout/tools/reftest/runreftest.py", line 672, in runSerialTests
    startAfter=startAfter)
  File "layout/tools/reftest/runreftest.py", line 373, in createReftestProfile
    profile = mozprofile.Profile(**kwargs)
  File "testing/mozbase/mozprofile/mozprofile/profile.py", line 89, in __init__
    self._internal_init()
  File "testing/mozbase/mozprofile/mozprofile/profile.py", line 119, in _internal_init
    assert len(self._whitelistpaths) <= 2

Comment 1

[Jonathan Watt [:jwatt]]

Same thing when running:

$ ./mach reftest layout/reftests/svg

and:

$ ./mach reftest --disable-e10s layout/reftests/svg