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Viewing changes to bzrlib/tests/__init__.py

Add run_bzr_errors alongside run_bzr, to make it easy to check the right error is occurring.

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bzrlib/tests/__init__.py
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            encoding = bzrlib.user_encoding
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        return self.run_bzr(*args, **kwargs)[0].decode(encoding)
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    def run_bzr_error(self, error_regexes, *args, **kwargs):
 
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        """Run bzr, and check that stderr contains the supplied regexes"""
 
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        out, err = self.run_bzr(*args, **kwargs)
 
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        for regex in error_regexes:
 
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            self.assertContainsRe(err, regex)
 
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    def run_bzr_subprocess(self, *args, **kwargs):
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        """Run bzr in a subprocess for testing.
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