def test_flexi_class_fromkeys():
f = Flexi.fromkeys(["alice", "bob", "carol", "dave"], 25)
assert len(f) == 4
assert f.alice is 25
assert f.bob is 25
assert f.carol is 25
assert f.dave is 25
def test_flexi_instance_fromkeys():
f = Flexi()
x = f.fromkeys(["alice", "bob", "carol", "dave"], 25)
assert len(f) == 0
assert len(x) == 4
assert x.alice is 25
assert x.bob is 25
assert x.carol is 25
assert x.dave is 25