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local_concurrency can be overridden from command-line

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bzrlib/tests/test__static_tuple.py
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# Copyright (C) 2009, 2010 Canonical Ltd
 
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# Copyright (C) 2009 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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def load_tests(standard_tests, module, loader):
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    """Parameterize tests for all versions of groupcompress."""
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    global compiled_static_tuple_feature
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    suite, compiled_static_tuple_feature = tests.permute_tests_for_extension(
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        standard_tests, loader, 'bzrlib._static_tuple_py',
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        'bzrlib._static_tuple_c')
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    return suite
 
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    scenarios = [
 
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        ('python', {'module': _static_tuple_py}),
 
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    ]
 
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    suite = loader.suiteClass()
 
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    if CompiledStaticTuple.available():
 
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        from bzrlib import _static_tuple_c
 
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        scenarios.append(('C', {'module': _static_tuple_c}))
 
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    else:
 
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        # the compiled module isn't available, so we add a failing test
 
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        class FailWithoutFeature(tests.TestCase):
 
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            def test_fail(self):
 
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                self.requireFeature(CompiledStaticTuple)
 
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        suite.addTest(loader.loadTestsFromTestCase(FailWithoutFeature))
 
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    result = tests.multiply_tests(standard_tests, scenarios, suite)
 
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    return result
 
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class _CompiledStaticTuple(tests.Feature):
 
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    def _probe(self):
 
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        try:
 
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            import bzrlib._static_tuple_c
 
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        except ImportError:
 
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            return False
 
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        return True
 
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    def feature_name(self):
 
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        return 'bzrlib._static_tuple_c'
 
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CompiledStaticTuple = _CompiledStaticTuple()
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class _Meliae(tests.Feature):
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    def test_create_bad_args(self):
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        args_256 = ['a']*256
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        # too many args
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        self.assertRaises(TypeError, self.module.StaticTuple, *args_256)
 
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        self.assertRaises(ValueError, self.module.StaticTuple, *args_256)
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        args_300 = ['a']*300
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        self.assertRaises(TypeError, self.module.StaticTuple, *args_300)
 
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        self.assertRaises(ValueError, self.module.StaticTuple, *args_300)
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        # not a string
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        self.assertRaises(TypeError, self.module.StaticTuple, object())
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        # Make sure the right implementation is available from
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        # bzrlib.static_tuple.StaticTuple.
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        if self.module is _static_tuple_py:
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            if compiled_static_tuple_feature.available():
 
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            if CompiledStaticTuple.available():
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                # We will be using the C version
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                return
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        self.assertIs(static_tuple.StaticTuple,