Lots of stuff

- Add tests for chaser steps
- Finish preliminary implementation of chasers
- Implement (de)serialization on chasers and steps
- Various bugfixes from testing

1 files changed, 124 insertions, 0 deletions

diff --git a/tests/test_functions_chaserstep.py b/tests/test_functions_chaserstep.py
new file mode 100644
index 0000000..134b893
--- /dev/null
+++ b/tests/test_functions_chaserstep.py
@@ -0,0 +1,124 @@
+import datetime as dt
+
+import pytest
+
+from blc2.functions.chaserstep import ChaserStep
+from blc2.topology import Fixture
+from blc2.functions.scene import Scene
+from blc2.functions.audio import Audio
+from blc2.workspace import Workspace
+from blc2.constants import INHERIT, MANUAL, EXTERNAL, INTERNAL, INFTY
+
+class DummyChaser:
+    def register_step(self, *args, **kwargs):
+        return
+
+    def __init__(self, w):
+        self.w = w
+
+@pytest.fixture
+def cw():
+    w = Workspace("", "", "", dt.datetime.now())
+    f = Fixture(w=w, id_=0, channel_count=1)
+    c0, = f.channels
+    f2 = Fixture(w=w, id_=1, channel_count=4)
+    Scene(w=w, id_=0, values={c0: 255})
+    Scene(w=w, id_=1, values={c: 255-i for i, c in enumerate(f2.channels)})
+    Audio(w=w, id_=2, filename="tests/silence.m4a")
+
+    return w
+
+def test_chaserstep(cw):
+    c = DummyChaser(cw)
+    s0 = cw.functions[0]
+    s1 = cw.functions[1]
+    a = cw.functions[2]
+    c0, = cw.fixtures[0].channels
+
+    ## Test how it handles inherit
+    cs1 = ChaserStep(c, function=s0, duration_mode=INHERIT)
+    assert cs1.duration == INFTY
+    assert cs1.actual_duration == INFTY
+    assert cs1.fade_out_mode == s0.fade_out_mode
+    assert cs1.scope == s0.scope
+    assert cs1.audio_scope == s0.audio_scope
+
+    cs1.fade_in = 1000
+    cs1.fade_out = 1000
+    assert cs1.duration == INFTY
+    assert cs1.actual_duration == INFTY
+
+    data = cs1._get_data(0, 0)
+    lc, ac, data = cs1.render(500, data)
+    assert not ac
+    assert lc == ((c0, 127),)
+
+    lc, ac, data = cs1.render(1000, data)
+    assert not ac
+    assert lc == ((c0, 255),)
+
+    data.end_time = 1500
+    lc, ac, data = cs1.render(2000, data)
+    assert not ac
+    assert lc == ((c0, 127),)
+
+    lc, ac, data = cs1.render(2501, data)
+    assert not ac
+    assert not lc
+
+    ## Test how it handles manual mode
+    cs1.duration_mode = MANUAL
+    cs1.duration = 1500
+    assert cs1.duration == 1500
+    assert cs1.actual_duration == 2500
+
+    data = cs1._get_data(0, 0)
+    lc, ac, data = cs1.render(500, data)
+    assert not ac
+    assert lc == ((c0, 127),)
+
+    lc, ac, data = cs1.render(1000, data)
+    assert not ac
+    assert lc == ((c0, 255),)
+
+    lc, ac, data = cs1.render(2000, data)
+    assert not ac 
+    assert lc == ((c0, 127),)
+
+    lc, ac, data = cs1.render(2501, data)
+    assert not ac
+    assert not lc
+
+    ## Test how it handles inherit and a function change
+    cs1.duration_mode = INHERIT
+    assert cs1.duration == INFTY
+    assert cs1.actual_duration == INFTY
+
+    data = cs1._get_data(0, 0)
+    
+    cs1.fade_out = 0
+    cs1.fade_in = 0
+    cs1.function = a
+    if a.actual_duration != 3024:
+        raise ValueError("silence.m4a is wrong duration, fix the tests")
+    assert cs1.audio_scope == a.audio_scope
+    assert cs1.scope == a.scope
+    assert cs1.duration == a.actual_duration
+    assert cs1.actual_duration == a.actual_duration
+    cs1.fade_out = 1000
+    cs1.fade_in = 1000
+    assert cs1.duration == a.actual_duration-1000
+
+    lc, ac, data = cs1.render(500, data)
+    assert not lc
+    assert len(ac) == 1
+    assert ac[0][1:] == ("tests/silence.m4a", 0, 1000, 2024, 1000)
+    a.fade_out = 2000
+    lc, ac, data = cs1.render(501, data)
+    assert not lc
+    assert len(ac) == 1
+    assert ac[0][1:] == ("tests/silence.m4a", 0, 1000, 1024, 2000)
+
+    lc, ac, data = cs1.render(3025, data)
+    assert not lc
+    assert not ac