def test_circular_self(self):
f = tempfile.NamedTemporaryFile(suffix='.yaml')
f.write('''
a: !include {}
'''.format(f.name).encode())
f.flush()
f.seek(0)
with self.assertRaises(ValueError):
yamlenv.load(f)
def test_interpolate_invalid_yaml_value(self):
self.assertEqual(
yamlenv.load('''
{'a': {'b': '{foo} ${C:-foo}'}}
'''), {'a': {
'b': "{foo} foo"
}})
def from_yaml_stream(cls, stream):
"""
>>> os.environ['PORT_TEST'] = '5000'
>>> ConfigDict.from_yaml_stream('port_test: ${PORT_TEST}')
{'port_test': 5000}
"""
return cls(yamlenv.load(stream))
def test_interpolate_nested(self):
self.assertEqual(yamlenv.load('''
a: 1
b:
b1: 21
b2: ${B-22}
'''), {'a': 1, 'b': {'b1': 21, 'b2': 22}})
def load_config_file(config_name):
logger = logging.getLogger('utils.load_config_file')
config_path = f'configs/{config_name}.yaml'
logger.info(f"Using config {config_path}")
with open(config_path, 'r') as stream:
return yamlenv.load(stream)
def test_interpolate_default(self):
self.assertEqual(yamlenv.load('''
a: ${A-1}
b: 2
'''), {
'a': '1',
'b': 2
})
def test_interpolate_default_alternative_separator(self):
self.assertEqual(yamlenv.load('''
a: ${A:-1}
b: 2
'''), {
'a': '1',
'b': 2
})
def test_load(self):
self.assertEqual(yamlenv.load('''
a: 1
b: 2
'''), {
'a': 1,
'b': 2
})
def test_interpolate_string_prefer_env(self):
os.environ['A'] = 'password'
self.assertEqual(yamlenv.load('''
a: ${A-1}
b: 2
'''), {
'a': 'password',
'b': 2
})
def test_interpolate_string_alternative_separator(self):
os.environ['A'] = 'password'
self.assertEqual(yamlenv.load('''
a: ${A:-1}
b: 2
'''), {
'a': 'password',
'b': 2
})
def test_interpolate_within_characters(self):
os.environ['A'] = 'def'
self.assertEqual(yamlenv.load('''
a: abc${A}ghi
b: 2
'''), {
'a': 'abcdefghi',
'b': 2
})
def test_interpolate_integer(self):
os.environ['A'] = '1'
self.assertEqual(yamlenv.load('''
a: ${A}
b: 2
'''), {
'a': '1',
'b': 2
})
def test_empty_file(self):
f = tempfile.NamedTemporaryFile(suffix='.yaml')
data = yamlenv.load('''
a: 1
b: !include {}
'''.format(f.name))
self.assertEqual(data, {'a': 1, 'b': None})
def test_include(self):
f = tempfile.NamedTemporaryFile(suffix='.yaml')
f.write(b'2')
f.flush()
data = yamlenv.load('''
a: 1
b: !include {}
'''.format(f.name))
self.assertEqual(data, {'a': 1, 'b': 2})
def inject(input_file: str = None,
output_file: str = None,
secrets: dict = None) -> None:
"""
Function that takes an input template, injects secrets into it,
and writes the interpolated result to an output file.
"""
for k, v in secrets.items():
os.environ[k] = v
with open(input_file, 'r') as f_in:
interpolated_template = yamlenv.load(f_in.read())
with open(output_file, 'w') as f_out:
f_out.write(yaml.dump(interpolated_template))
def test_fail_if_no_env(self):
with self.assertRaises(ValueError):
yamlenv.load('''
a: ${A}
b: 2
''')
def test_non_existing(self):
with self.assertRaises(IOError):
yamlenv.load('''
a: 1
b: !include non-existing.yaml
''')
def test_interpolate_two_values(self):
os.environ['A'] = '1'
os.environ['B'] = 'foo'
self.assertEqual(yamlenv.load('''
a: ${A} ${B}
'''), {'a': "1 foo"})
def test_interpolate_default_empty(self):
self.assertEqual(yamlenv.load('''
a: bar ${FOO-} bar
'''), {'a': 'bar bar'})
def test_interpolate_embedded_integer(self):
self.assertEqual(yamlenv.load('''
a: ${FOO:-7} bar
'''), {'a': '7 bar'})
def test_interpolate_embedded(self):
self.assertEqual(yamlenv.load('''
a: ${FOO:-foo} bar
'''), {'a': 'foo bar'})
def test_default_empty(self):
self.assertEqual(yamlenv.load('''
a: ${FOO-}
'''), {'a': None})
def test_interpolate_two_values_with_defaults(self):
self.assertEqual(
yamlenv.load('''
a: ${C:-foo} ${D:-bar}
'''), {'a': "foo bar"})
def read_yaml(path):
"""Loads config from a YAML file with env interpolation"""
with open(path, 'r') as yaml:
contents = yaml.read()
return yamlenv.load(contents)
def test_default_does_not_exist(self):
with self.assertRaises(ValueError):
yamlenv.load('''
a: ${FOO:-} bar
''')