def test_lazy_initializer(self):
lazy_evaluator = TestLazyEvaluator()
builder = ConfigurationBindingsBuilder()
builder.add_lazy_initializer('lazy', lazy_evaluator)
builder.add_lazy_initializer('implied', lazy_evaluator)
builder.add_lazy_initializer('overriden', lazy_evaluator)
builder.add_lazy_initializer('has_default', lazy_evaluator)
builder.set_default('has_default', 'default')
bindings = builder.build()
self.assertEqual(2, bindings['lazy'])
self.assertEqual(1, bindings['IMPLIED']) # already initialized
bindings['overriden'] = 'Hello'
self.assertEquals('Hello', bindings['overriden'])
# Default is lower precedence than lazy initializer
self.assertEquals(3, bindings['has_default'])
with self.assertRaises(KeyError):
self.assertIsNotNone(bindings['missing'])
self.assertEquals([(bindings, 'implied'),
(bindings, 'lazy'),
(bindings, 'has_default')],
lazy_evaluator.called_with_bk)
def test_lazy_initializer(self):
lazy_evaluator = TestLazyEvaluator()
builder = ConfigurationBindingsBuilder()
builder.add_lazy_initializer('lazy', lazy_evaluator)
builder.add_lazy_initializer('implied', lazy_evaluator)
builder.add_lazy_initializer('overriden', lazy_evaluator)
builder.add_lazy_initializer('has_default', lazy_evaluator)
builder.set_default('has_default', 'default')
bindings = builder.build()
self.assertEqual(2, bindings['lazy'])
self.assertEqual(1, bindings['IMPLIED']) # already initialized
bindings['overriden'] = 'Hello'
self.assertEquals('Hello', bindings['overriden'])
# Default is lower precedence than lazy initializer
self.assertEquals(3, bindings['has_default'])
with self.assertRaises(KeyError):
self.assertIsNotNone(bindings['missing'])
self.assertEquals([(bindings, 'implied'),
(bindings, 'lazy'),
(bindings, 'has_default')],
lazy_evaluator.called_with_bk)
def test_contains(self):
lazy_evaluator = TestLazyEvaluator()
builder = ConfigurationBindingsBuilder()
builder.add_lazy_initializer('lazy', lazy_evaluator)
builder.add_lazy_initializer('shared', lazy_evaluator)
builder.add_configs_for_class(ConfigurationBindingsTest)
builder.set_override('shared', 'OverridenValue')
builder.set_override('overriden', 'OverridenValue')
builder.set_default('default', 'DefaultValue')
bindings = builder.build()
self.assertTrue('lazy' in bindings)
self.assertTrue('shared' in bindings)
self.assertTrue('overriden' in bindings)
self.assertTrue('default' in bindings)
self.assertTrue('DeFaUlT' in bindings)
self.assertTrue('read_configuration_bindings_test' in bindings)
self.assertTrue('tests_base_param' in bindings)
self.assertFalse('missing' in bindings)
self.assertEquals([], lazy_evaluator.called_with_bk)
self.assertFalse('implied' in bindings)
def test_contains(self):
lazy_evaluator = TestLazyEvaluator()
builder = ConfigurationBindingsBuilder()
builder.add_lazy_initializer('lazy', lazy_evaluator)
builder.add_lazy_initializer('shared', lazy_evaluator)
builder.add_configs_for_class(ConfigurationBindingsTest)
builder.set_override('shared', 'OverridenValue')
builder.set_override('overriden', 'OverridenValue')
builder.set_default('default', 'DefaultValue')
bindings = builder.build()
self.assertTrue('lazy' in bindings)
self.assertTrue('shared' in bindings)
self.assertTrue('overriden' in bindings)
self.assertTrue('default' in bindings)
self.assertTrue('DeFaUlT' in bindings)
self.assertTrue('read_configuration_bindings_test' in bindings)
self.assertTrue('tests_base_param' in bindings)
self.assertFalse('missing' in bindings)
self.assertEquals([], lazy_evaluator.called_with_bk)
self.assertFalse('implied' in bindings)
def test_lazy_overrides_removes_None_override(self):
lazy_evaluator = TestLazyEvaluator()
builder = ConfigurationBindingsBuilder()
builder.set_override('overriden', None)
builder.set_override('has_default', 'have')
builder.add_lazy_initializer('overriden', lazy_evaluator)
builder.add_lazy_initializer('has_default', lazy_evaluator)
builder.add_lazy_initializer('lazy', lazy_evaluator)
builder.set_override('lazy', None)
bindings = builder.build()
self.assertEquals(1, bindings.get('overriden'))
self.assertEquals('have', bindings.get('has_default'))
self.assertIsNone(bindings.get('lazy')) # because we overrode it
def test_lazy_overrides_removes_None_override(self):
lazy_evaluator = TestLazyEvaluator()
builder = ConfigurationBindingsBuilder()
builder.set_override('overriden', None)
builder.set_override('has_default', 'have')
builder.add_lazy_initializer('overriden', lazy_evaluator)
builder.add_lazy_initializer('has_default', lazy_evaluator)
builder.add_lazy_initializer('lazy', lazy_evaluator)
builder.set_override('lazy', None)
bindings = builder.build()
self.assertEquals(1, bindings.get('overriden'))
self.assertEquals('have', bindings.get('has_default'))
self.assertIsNone(bindings.get('lazy')) # because we overrode it
