test_group.py 文件源码

def test_keys(setup_teardown_file):
    """.keys provides a key view."""
    f = setup_teardown_file[3]
    grp = f.create_group("test")

    grp.create_group("a")
    grp.create_group("b")
    grp.create_group("c")
    grp.create_group("d")

    assert isinstance(grp.keys(), KeysView)
    assert sorted(list(grp.keys())) == ["a", "b", "c", "d"]