def test_simple_chaining(sig):
signal2 = Signal()
sig.connect(lambda: 1, weak=False)
sig.connect(lambda: 2, weak=False)
sig.connect(lambda: 3, weak=False)
signal2.connect(lambda: 4, weak=False)
signal2.connect(lambda: 5, weak=False)
signal2.connect(lambda: 6, weak=False)
sig.connect(signal2)
assert sorted(sig()) == [1, 2, 3, 4, 5, 6]
def test_lazy_connect(collector):
s1 = Signal()
s2 = Signal()
s3 = Signal()
s1.connect(s2)
s2.connect(s3)
assert not s1
assert not s2
assert not s3
s3.connect(collector.collect)
assert s1
assert s2
assert s3
s1(3)
collector.check(3)
def test_chaining_with_lists(sig):
signal2 = Signal()
sig.connect(lambda: [1, 2], weak=False)
signal2.connect(lambda: [3, 4], weak=False)
sig.connect(signal2)
assert sorted(sig()) == [[1, 2], [3, 4]]
