def test_depth_one(self):
foo = path.Node("foo")
path.mount("/", foo)
self.assertEqual(path.select("/"), ("foo",))
self.assertTrue(path.exists("/foo"))
path.umount("/foo")
self.assertEqual(path.select("/"), ())
def test_depth_two(self):
foo = path.Node("foo")
path.mount("/", foo)
bar = path.Node("bar")
path.mount("/foo", bar)
self.assertTrue(path.exists("/foo/bar"))
self.assertEqual(path.select("/foo"), ("bar",))
self.assertEqual(path.get("/foo/bar"), bar)
path.umount("/foo/bar")
self.assertEqual(path.select("/foo"), ())
self.assertEqual(path.select("/"), ("foo",))
def test_link(self):
"""
/
+- foo
+- baz
+- bar
+- foo@
"""
foo = path.mount("/", path.Node("foo"))
self.assertFalse(path.is_link("/foo"))
path.mount("/", path.Node("bar"))
lfoo = path.link("/bar", foo)
self.assertEqual(lfoo.path, "/bar/foo")
self.assertEqual(path.get("/bar/foo"), foo)
self.assertTrue(path.is_link("/bar/foo"))
baz = path.mount("/bar/foo", path.Node("baz"))
self.assertEqual(baz.path, "/foo/baz")
path.umount("/bar/foo")
self.assertEqual(path.get("/foo"), foo)
def test_select(self):
class XNode(path.Node):
def __init__(self, name, x):
super(XNode, self).__init__(name)
self.x = x
foo = XNode("foo", 42)
bar = XNode("bar", 100)
baz = XNode("baz", 3.14)
qux = XNode("qux", 50)
path.mount("/", foo)
path.mount("/", bar)
path.mount("/", baz)
path.mount("/", qux)
self.assertEqual(set(path.select("/")), set(("foo", "bar", "baz", "qux")))
self.assertEqual(set(path.select("/", by_value = True)), set((foo, bar, baz, qux)))
self.assertEqual(
path.select("/", predicate = lambda node: node.x < 100, key = lambda node: node.x),
("baz", "foo", "qux"))