def test_scopes_is_local():
scopes = Scopes()
scopes.new_scope()
assert scopes.is_local('a') is False
scopes.add_local('a')
assert scopes.is_local('a') is True
assert scopes.is_local('b') is False
scopes.add_local('b')
assert scopes.is_local('b') is True
scopes.new_scope()
assert scopes.is_local('a') is False
scopes.add_local('a')
assert scopes.is_local('a') is True
assert scopes.is_local('b') is False
def test_scopes_get_local():
scopes = Scopes()
scopes.new_scope()
scopes.add_local('a')
scopes.add_local('b')
assert scopes.get_local('a') == 0
assert scopes.get_local('b') == 1
py.test.raises(ValueError, scopes.get_local, 'c')
scopes.new_scope()
scopes.add_local('b')
assert scopes.get_local('b') == 0
py.test.raises(ValueError, scopes.get_local, 'a')