def test_should_resolve_from_master_config_when_property_is_missing(self):
# when
config = Config('dev', {'a': 1})\
.add_configuration('prod', {})
# expect
self.assertEqual(config.resolve('dev'), {'a': 1})
self.assertEqual(config.resolve('prod'), {'a': 1})
def test_should_support_hierarchical_configuration(self):
# when
config = Config('dev', {'a': 1, 'b': 2})\
.add_configuration('prod', {'a': 5, 'b':10, 'c':20})
# then
self.assertEqual(config.resolve('dev'), {'a': 1, 'b': 2})
self.assertEqual(config.resolve('prod'), {'a': 5, 'b': 10, 'c': 20})
def test_should_give_priority_to_explicit_properties_rather_than_os_env_variables(self):
# when
os.environ['bf_bb'] = 'x'
config = Config('dev', {'bb': 1})
# then
self.assertEqual(config.resolve('dev'), {'bb': 1})
self.assertEqual(config.resolve(), {'bb': 1})
self.assertEqual(config.resolve_property('bb', 'dev'), 1)
self.assertEqual(config.resolve_property('bb'), 1)
def test_should_use_default_env_from_secondary_config_when_no_env_is_given(self):
# when
config = Config('dev', {'a': 'dev1'}, is_default=False)\
.add_configuration('prod', {'a': 'prod2'}, is_default=True)\
.add_configuration('test', {'a': 'test3'})
# expect
self.assertEqual(config.resolve(), {'a': 'prod2'})
self.assertEqual(config.resolve('dev'), {'a': 'dev1'})
self.assertEqual(config.resolve('prod'), {'a': 'prod2'})
self.assertEqual(config.resolve('test'), {'a': 'test3'})
def test_should_use_os_environment_variable_prefix_if_given(self):
# when
os.environ['my_namespace_b'] = 'x'
config = Config('dev', {'b': None}, environment_variables_prefix='my_namespace_')
# then
self.assertEqual(config.resolve('dev'), {'b':'x'})
def test_should_resolve_to_os_env_variable_when_property_value_is_None(self):
# when
os.environ['bf_b'] = 'x'
config = Config('dev', {'a': 1, 'b': None})
# then
self.assertEqual(config.resolve('dev'), {'a':1, 'b':'x'})
def test_should_resolve_config_given_by_os_env_variable(self):
# when
self._set_os_env('dev')
config = Config('prod', {'bb': 1}).add_configuration('dev', {'bb': 2})
# then
self.assertEqual(config.resolve(), {'bb': 2})
def test_should_use_bg_as_the_default_environment_variables_prefix(self):
self._set_os_env('prod', 'bf_env')
# when
config = Config('dev', {'a': 'dev1'})\
.add_configuration('prod', {'a': 'prod2'})
#expect
self.assertEqual(config.resolve(), {'a': 'prod2'})
def test_should_resolve_config_given_by_os_env_variable_with_prefix(self):
# when
self._set_os_env('test', 'my_namespace_env')
config = Config('prod', {'bb': 'prod'}, environment_variables_prefix='my_namespace_')\
.add_configuration('test', {'bb': 'test'})
# then
self.assertEqual(config.resolve(), {'bb': 'test'})
def test_should_resolve_explicit_properties_in_simple_config(self):
# when
config = Config('dev', {'a': 1, 'b': '2'})
#expect
self.assertEqual(config.resolve('dev'), {
'a': 1,
'b': '2',
'env': 'dev'
})
def test_should_resolve_env_variables_laizyly_when_calling_resolve_property(self):
# when
config = Config('dev', {'a': 'dev1'})
#then
self.assertEqual(config.resolve(), {'a': 'dev1'})
self.assertEqual(config.resolve_property('a'), 'dev1')
self.assertEqual(config.resolve_property('a', 'dev'), 'dev1')
with self.assertRaises(ValueError):
config.resolve_property('b')
# when
os.environ['bf_b'] = 'b_from_env'
# then
self.assertEqual(config.resolve(), {'a': 'dev1'})
self.assertEqual(config.resolve_property('b'), 'b_from_env')
self.assertEqual(config.resolve_property('b', 'dev'), 'b_from_env')
with self.assertRaises(ValueError):
config.resolve_property('c')
def test_should_resolve_env_variables_via_resolve_method(self):
# when
config = Config('dev', {'a': 'dev1'})
#then
self.assertEqual(config.resolve(), {'a': 'dev1', 'env': 'dev'})
self.assertEqual(config.resolve('dev'), {'a': 'dev1', 'env': 'dev'})
# when
os.environ['bf_b'] = 'b_from_env'
# then
self.assertEqual(config.resolve(), {
'a': 'dev1',
'b': 'b_from_env',
'env': 'dev'
})
self.assertEqual(config.resolve('dev'), {
'a': 'dev1',
'b': 'b_from_env',
'env': 'dev'
})
def test_should_use_default_env_from_master_config_when_no_env_is_given(self):
# when
config = Config('dev', {'a': 'dev1'})\
.add_configuration('prod', {'a': 'prod2'})\
.add_configuration('test', {'a': 'test3'})
# expect
self.assertEqual(config.resolve(), {'a': 'dev1'})
self.assertEqual(config.resolve('dev'), {'a': 'dev1'})
self.assertEqual(config.resolve('prod'), {'a': 'prod2'})
self.assertEqual(config.resolve('test'), {'a': 'test3'})
# when
self._set_os_env('prod')
self.assertEqual(config.resolve(), {'a': 'prod2'})
self._set_os_env('dev')
self.assertEqual(config.resolve(), {'a': 'dev1'})
self._set_os_env('test')
self.assertEqual(config.resolve(), {'a': 'test3'})
