def test_lazily_locate_dotted_path_error_if_no_package_spec(dotted_path_str):
with pytest.raises(ModuleNotFoundError) as excinfo:
dotted_path.lazily_locate_dotted_path(dotted_path_str)
assert (f"Error processing dotted path '{dotted_path_str}', no "
"module named 'a'" in str(excinfo.value))
def test_lazily_locate_dotted_path_error_if_invalid_dotted_path(
dotted_path_str):
with pytest.raises(ValueError) as excinfo:
dotted_path.lazily_locate_dotted_path(dotted_path_str)
expected = (f"Invalid dotted path '{dotted_path_str}'. "
"Value must be a dot "
"separated string, with at least two parts: "
"[module_name].[function_name]")
assert str(excinfo.value) == expected
def test_lazily_locate_dotted_path_missing_module(tmp_directory,
add_current_to_sys_path,
no_sys_modules_cache):
Path('a').mkdir()
Path('a', '__init__.py').touch()
with pytest.raises(ModuleNotFoundError) as excinfo:
dotted_path.lazily_locate_dotted_path('a.b.c')
assert "No module named 'a.b'. Expected to find one of" in str(
excinfo.value)
def test_error_if_doesnt_define_name(tmp_directory, add_current_to_sys_path,
no_sys_modules_cache):
Path('a.py').touch()
with pytest.raises(AttributeError) as excinfo:
dotted_path.lazily_locate_dotted_path('a.unknown_name')
assert "Failed to locate dotted path 'a.unknown_name'" in str(
excinfo.value)
assert "a.py" in str(excinfo.value)
assert "a function named 'unknown_name'" in str(excinfo.value)
def get_loc(self):
if self._from_dotted_path:
loc, _ = lazily_locate_dotted_path(self._primitive)
return loc
else:
path = getfile(self.load())
_, line = inspect.getsourcelines(self.load())
return '{}:{}'.format(path, line)
def test_lazily_located_dotted_path(dotted_path_str, tmp_imports):
loc, source = dotted_path.lazily_locate_dotted_path(dotted_path_str)
obj = dotted_path.load_dotted_path(dotted_path_str)
loc_real = getfile(obj)
lines, line = inspect.getsourcelines(obj)
source_expected = ''.join(lines)
loc_expected = f'{loc_real}:{line}'
assert loc == loc_expected
assert source == source_expected
def get_source(self):
if self._from_dotted_path:
_, source = lazily_locate_dotted_path(self._primitive)
return source
else:
return inspect.getsource(self.load())