Stabilize iso format unit tests
Some version of mkisofs does not properly handle if both the input and the output file of the command are the same. So this commit changes the unit tests depending on that binary to use a different files. Related-Bug: #2059809 Change-Id: I6924eb23ff5804c22a48ec6fabcec25f061906bb (cherry picked from commitc6d8c6972d
) (cherry picked from commita8783a7675
) (cherry picked from commit02147b36d3
)
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@ -91,10 +91,15 @@ class TestFormatInspectors(test.NoDBTestCase):
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subprocess.check_output(
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'dd if=/dev/zero of=%s bs=1M count=%i' % (fn, size),
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shell=True)
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# We need to use different file as input and output as the behavior
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# of mkisofs is version dependent if both the input and the output
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# are the same and can cause test failures
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out_fn = "%s.iso" % fn
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subprocess.check_output(
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'%s -V "TEST" -o %s %s' % (base_cmd, fn, fn),
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'%s -V "TEST" -o %s %s' % (base_cmd, out_fn, fn),
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shell=True)
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return fn
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self._created_files.append(out_fn)
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return out_fn
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def _create_img(
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self, fmt, size, subformat=None, options=None,
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