def test_missing_values_have_defaults(self):
properties = property_dict([
Property('thing'),
Property('entity', default='object'),
])
data = {}
configuration = Configuration(properties, data)
self.assertEqual(configuration.thing, None)
self.assertEqual(configuration.entity, 'object')
def test_some_values_are_required(self):
properties = property_dict([
Property('thing', required=True),
Property('entity'),
])
data = {
'thing': 'ding',
'entity': 'dong',
}
configuration = Configuration(properties, data)
configuration.validate()
def test_values_are_checked_against_their_type(self):
properties = property_dict([
Property('thing', type=int),
Property('entity', type=bool),
])
data = {
'thing': 3,
'entity': False,
}
configuration = Configuration(properties, data)
configuration.validate()
def test_exposes_properties(self):
properties = property_dict([
Property('thing'),
Property('entity'),
])
data = {
'thing': 'foo',
'entity': 'bar',
}
configuration = Configuration(properties, data)
self.assertEqual(configuration.thing, 'foo')
self.assertEqual(configuration.entity, 'bar')
def test_missing_required_values_cause_a_validation_exception(self):
properties = property_dict([
Property('thing', required=True),
Property('entity'),
])
data = {
'entity': 'dong',
}
configuration = Configuration(properties, data)
with self.assertRaises(ValidationException) as raises_context:
configuration.validate()
self.assertEqual(
raises_context.exception.errors,
[ValidationError('The property "thing" is required.')])
def test_overriding_configuration_favours_the_latter(self):
properties = property_dict([
Property('thing'),
Property('entity'),
])
configuration_a = Configuration(properties, {
'thing': 'foo',
'entity': 'bar',
})
configuration_b = Configuration(properties, {
'thing': 'baz',
})
configuration = configuration_a.override_with(configuration_b)
self.assertEqual(configuration.thing, 'baz')
self.assertEqual(configuration.entity, 'bar')
def test_invalid_values_cause_a_validation_exception(self):
properties = property_dict([
Property('thing', type=int),
Property('entity', type=bool),
])
data = {
'thing': 'three',
'entity': False,
}
configuration = Configuration(properties, data)
with self.assertRaises(ValidationException) as raises_context:
configuration.validate()
self.assertEqual(raises_context.exception.errors, [
ValidationError('The property "thing" must be an integer.\n'
'Invalid value: \'three\'')
])
def test_non_existent_properties_raise_errors(self):
properties = property_dict([
Property('thing'),
])
data = {}
configuration = Configuration(properties, data)
with self.assertRaises(KeyError):
# noinspection PyStatementEffect
configuration.entity