def test_items(os_env):
env = EnvWrapper(VAR1=EnvVar(), VAR2=EnvVar())
os_env['VAR1'] = 'foo'
os_env['VAR2'] = 'bar'
d = dict(env.items())
assert set(env.keys()) == set(d.keys())
assert d['VAR1'] == 'foo'
assert d['VAR2'] == 'bar'
def test_collect():
env = EnvWrapper(VAR=EnvVar(),
PREFIXED=EnvVar(prefix='FOO_'),
BUNDLED=EnvVar(bundle='GROUP'),
PROXIED=EnvVar(proxy='YADA'))
d = env.collect()
expected_os_env = {'VAR', 'FOO_PREFIXED', 'BUNDLED', 'YADA'}
assert set(d.keys()) == expected_os_env
expected_app_schema = {'VAR', 'PREFIXED', 'GROUP', 'BUNDLED', 'PROXIED'}
assert set(env.keys()) == expected_app_schema
def test_prefix(os_env):
env = EnvWrapper(VAR=EnvVar(prefix='APP_'))
os_env['APP_VAR'] = 'foo'
assert 'VAR' in env.keys()
assert 'APP_VAR' not in env
def test_len_keys_and_dir():
env = EnvWrapper(VAR1=EnvVar(), VAR2=EnvVar())
assert set(env.keys()) == set(dir(env)) == {'VAR1', 'VAR2'}
assert len(env) == len(dir(env)) == len(list(env.keys())) == 2
def test_empty_wrapper():
env = EnvWrapper()
assert len(list(dir(env))) == 0
assert len(list(env.keys())) == 0