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bzrlib/tests/test_config.py
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class TestStackGet(TestStackWithTransport):
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    def setUp(self):
 
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        super(TestStackGet, self).setUp()
 
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        self.conf = self.get_stack(self)
 
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    def test_get_for_empty_stack(self):
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        conf = self.get_stack(self)
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        self.assertEquals(None, conf.get('foo'))
 
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        self.assertEquals(None, self.conf.get('foo'))
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    def test_get_hook(self):
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        conf = self.get_stack(self)
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        conf.store._load_from_string('foo=bar')
 
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        self.conf.store._load_from_string('foo=bar')
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        calls = []
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        def hook(*args):
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            calls.append(args)
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        config.ConfigHooks.install_named_hook('get', hook, None)
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        self.assertLength(0, calls)
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        value = conf.get('foo')
 
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        value = self.conf.get('foo')
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        self.assertEquals('bar', value)
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        self.assertLength(1, calls)
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        self.assertEquals((conf, 'foo', 'bar'), calls[0])
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        self.assertEquals((self.conf, 'foo', 'bar'), calls[0])
 
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class TestStackGetWithConverter(TestStackGet):
 
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    def setUp(self):
 
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        super(TestStackGetWithConverter, self).setUp()
 
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        self.overrideAttr(config, 'option_registry', registry.Registry())
 
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        self.registry = config.option_registry
 
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    def register_bool_option(self, name, default):
 
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        b = config.Option(name, default=default,
 
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                          from_unicode=config.bool_from_store)
 
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        self.registry.register(b.name, b,  help='A boolean.')
 
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    def test_get_with_bool_not_defined_default_true(self):
 
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        self.register_bool_option('foo', True)
 
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        self.assertEquals(True, self.conf.get('foo'))
 
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    def test_get_with_bool_not_defined_default_false(self):
 
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        self.register_bool_option('foo', False)
 
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        self.assertEquals(False, self.conf.get('foo'))
 
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    def test_get_with_bool_converter_not_default(self):
 
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        self.register_bool_option('foo', False)
 
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        self.conf.store._load_from_string('foo=yes')
 
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        self.assertEquals(True, self.conf.get('foo'))
 
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    def test_get_with_bool_converter_invalid_string(self):
 
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        self.register_bool_option('foo', False)
 
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        self.conf.store._load_from_string('foo=not-a-boolean')
 
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        self.assertEquals(False, self.conf.get('foo'))
 
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    def test_get_with_bool_converter_invalid_list(self):
 
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        self.register_bool_option('foo', False)
 
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        self.conf.store._load_from_string('foo=not,a,boolean')
 
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        self.assertEquals(False, self.conf.get('foo'))
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class TestStackSet(TestStackWithTransport):
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