1 files changed, 76 insertions, 0 deletions
diff --git a/tests/test_functions_scene.py b/tests/test_functions_scene.py
new file mode 100644
index 0000000..7a5b78b
--- /dev/null
+++ b/tests/test_functions_scene.py
@@ -0,0 +1,76 @@
+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)