def test_respects_writable_mode_of_files(self, fs):
fs = MemoryFS()
write_file(fs, "file", u"foo")
fs.chmod("file", stat.S_IRUSR)
assert_file_content_equal(fs, "file", u"foo")
assert_open_raises(fs, "file", errno.EACCES, "a")
assert_open_raises(fs, "file", errno.EACCES, "w")
def test_get_subnodes(self, fs):
fs1 = MemoryFS(fs)
fs2 = MemoryFS(fs1)
fs.children["1"] = fs1
fs1.children["2"] = fs2
assert fs2 == fs.get_node(["1", os.curdir, os.pardir, "1", "2"])
