1377564 - Can't run mochitest with "--tag"

Status: NEW

(Testing :: Mochitest, defect)

Description

[James Cheng[:JamesCheng]]

The same symptom as bug 1332573, maybe it is also a regression issue.

I'm using OsX and running test on Fennec.

I've tested the desktop version on Mac and it's also broken.

Log:

Error running mach:

    ['mochitest', '--tag', 'suspend']

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:

ValueError: Item already in manifest: testing/mochitest/tests/layout/style/test/Ahem.ttf

  File "/Users/jacheng/Projects/gecko-fennec/testing/mochitest/mach_commands.py", line 315, in run_mochitest_general
    driver.install_tests(tests)
  File "/Users/jacheng/Projects/gecko-fennec/python/mozbuild/mozbuild/controller/building.py", line 696, in install_tests
    '_tests', test_objs)
  File "/Users/jacheng/Projects/gecko-fennec/python/mozbuild/mozbuild/testing.py", line 498, in install_test_files
    manifest.add_symlink(source, dest)
  File "/Users/jacheng/Projects/gecko-fennec/python/mozbuild/mozpack/manifests.py", line 255, in add_symlink
    self._add_entry(dest, (self.SYMLINK, source))
  File "/Users/jacheng/Projects/gecko-fennec/python/mozbuild/mozpack/manifests.py", line 328, in _add_entry
    raise ValueError('Item already in manifest: %s' % dest)