def test_materialize(self) -> None:
f = MagicMock(return_value="test")
x = LazyPath(f)
f.assert_not_called()
p = os.fspath(x)
f.assert_called()
self.assertEqual(p, "test")
p = os.fspath(x)
# should only be called once
f.assert_called_once()
self.assertEqual(p, "test")
def test_getitem(self) -> None:
x = LazyPath(lambda: "abc")
with self.assertRaises(TypeError):
x[0]
_ = os.fspath(x)
self.assertEqual(x[0], "a")
def test_PathManager(self) -> None:
x = LazyPath(lambda: "./")
output = PathManager.ls(x) # pyre-ignore
output_gt = PathManager.ls("./")
self.assertEqual(sorted(output), sorted(output_gt))
def test_getattr(self) -> None:
x = LazyPath(lambda: "abc")
with self.assertRaises(AttributeError):
x.startswith("ab")
_ = os.fspath(x)
self.assertTrue(x.startswith("ab"))
def test_join(self) -> None:
f = MagicMock(return_value="test")
x = LazyPath(f)
p = os.path.join(x, "a.txt")
f.assert_called_once()
self.assertEqual(p, "test/a.txt")
def test_PathManager(self):
x = LazyPath(lambda: "./")
output = PathManager.ls(x)
output_gt = PathManager.ls("./")
self.assertEqual(sorted(output), sorted(output_gt))
