Code review comment for ~binli/checkbox-support/+git/checkbox-support:dmic-support

Ran 178 tests in 19.883s

FAILED (failures=10)
Test failed: <unittest.runner.TextTestResult run=178 errors=0 failures=10>
error: Test failed: <unittest.runner.TextTestResult run=178 errors=0 failures=10>

> @Sylvain,
>
> Thanks for your feedback. And I try to run 'setup.py test' in the master
> branch, it also failed in several testcases. I just pasted part of result.
>
> ======================================================================
> FAIL: test_SPDIF_in_port_label
> (checkbox_support.parsers.tests.test_pactl.AttributeTests)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "/work/source/gits/checkbox-dev/checkbox-
> support/checkbox_support/parsers/tests/test_pactl.py", line 522, in
> test_SPDIF_in_port_label
> self.assertEqual(attr.value[0].latency_offset, 0)
> AssertionError: ([0], {}) != 0
>
> ======================================================================
> FAIL: test_many_ports
> (checkbox_support.parsers.tests.test_pactl.AttributeTests)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "/work/source/gits/checkbox-dev/checkbox-
> support/checkbox_support/parsers/tests/test_pactl.py", line 443, in
> test_many_ports
> self.assertEqual(attr.value[0].availability, '')
> AssertionError: ([''], {}) != ''
>
> ======================================================================
> FAIL: test_one_port (checkbox_support.parsers.tests.test_pactl.AttributeTests)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "/work/source/gits/checkbox-dev/checkbox-
> support/checkbox_support/parsers/tests/test_pactl.py", line 421, in
> test_one_port
> self.assertEqual(attr.value[0].availability, 'available')
> AssertionError: (['available'], {}) != 'available'