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import pytest
from blc2.functions.scene import Scene
from blc2.constants import INFTY
def test_scene(aws):
"""Test creation and modification of scenes."""
c1, c2, c3, c4 = aws.fixtures[0].channels
s1 = Scene(aws)
assert s1.scope == frozenset()
assert s1.scope == frozenset()
values = {c1: 0, c2: 1, c3: 2, c4: 4}
s1.values = values
assert s1.values == values
assert s1.scope == frozenset(values.keys())
s1.update({c1: 10})
assert s1.values[c1] == 10
assert s1.scope == frozenset(values.keys())
for c, v in values.items():
if c == c1:
continue
assert v == s1.values[c]
s1.set(values)
assert s1.values == values
assert s1.scope == frozenset(values.keys())
del s1[c1]
assert s1.scope == {c2, c3, c4}
assert c1 not in s1.values
assert s1[c1] is None
s1[c1] = 10
assert s1.scope == frozenset(values.keys())
assert s1[c1] == 10
assert s1.duration == INFTY
assert s1.actual_duration == INFTY
assert s1.fade_in == 0
assert s1.fade_out == 0
assert not s1.audio_scope
with pytest.raises(Exception):
s1.duration = 0
with pytest.raises(Exception):
s1.actual_duration = 0
with pytest.raises(Exception):
s1.fade_in = 0
with pytest.raises(Exception):
s1.fade_out = 0
with pytest.raises(Exception):
s1.scope = frozenset()
with pytest.raises(Exception):
s1.audio_scope = frozenset()
s1.set(values)
lc, ac, _ = s1.render(0)
assert ac == ()
assert dict(lc) == values
lc, ac, _ = s1.render(1234567890)
assert ac == ()
assert dict(lc) == values
s1[c1] = 10
lc, ac, _ = s1.render(1)
assert dict(lc)[c1] == 10
assert False not in (v == values[c] for c, v in lc if c != c1)
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