Speed up stream tests by 40-50% with shared data (#62300)

tests/components/stream/common.py

@@ -1,6 +1,7 @@
 """Collection of test helpers."""
 from datetime import datetime
 from fractions import Fraction
+import functools
 from functools import partial
 import io
 
@@ -23,6 +24,11 @@ DefaultSegment = partial(
 AUDIO_SAMPLE_RATE = 8000
 
 
+def stream_teardown():
+    """Perform test teardown."""
+    frame_image_data.cache_clear()
+
+
 def generate_audio_frame(pcm_mulaw=False):
     """Generate a blank audio frame."""
     if pcm_mulaw:
@@ -37,6 +43,19 @@ def generate_audio_frame(pcm_mulaw=False):
     return audio_frame
 
 
+@functools.lru_cache(maxsize=1024)
+def frame_image_data(frame_i, total_frames):
+    """Generate image content for a frame of a video."""
+    img = np.empty((480, 320, 3))
+    img[:, :, 0] = 0.5 + 0.5 * np.sin(2 * np.pi * (0 / 3 + frame_i / total_frames))
+    img[:, :, 1] = 0.5 + 0.5 * np.sin(2 * np.pi * (1 / 3 + frame_i / total_frames))
+    img[:, :, 2] = 0.5 + 0.5 * np.sin(2 * np.pi * (2 / 3 + frame_i / total_frames))
+
+    img = np.round(255 * img).astype(np.uint8)
+    img = np.clip(img, 0, 255)
+    return img
+
+
 def generate_video(encoder, container_format, duration):
     """
     Generate a test video.
@@ -58,15 +77,7 @@ def generate_video(encoder, container_format, duration):
     stream.options.update({"g": str(fps), "keyint_min": str(fps)})
 
     for frame_i in range(total_frames):
-
+        img = frame_image_data(frame_i, total_frames)
-        img = np.empty((480, 320, 3))
-        img[:, :, 0] = 0.5 + 0.5 * np.sin(2 * np.pi * (0 / 3 + frame_i / total_frames))
-        img[:, :, 1] = 0.5 + 0.5 * np.sin(2 * np.pi * (1 / 3 + frame_i / total_frames))
-        img[:, :, 2] = 0.5 + 0.5 * np.sin(2 * np.pi * (2 / 3 + frame_i / total_frames))
-
-        img = np.round(255 * img).astype(np.uint8)
-        img = np.clip(img, 0, 255)
-
         frame = av.VideoFrame.from_ndarray(img, format="rgb24")
         for packet in stream.encode(frame):
             container.mux(packet)

tests/components/stream/conftest.py

@@ -25,6 +25,8 @@ import pytest
 from homeassistant.components.stream.core import Segment, StreamOutput
 from homeassistant.components.stream.worker import StreamState
 
+from .common import generate_h264_video, stream_teardown
+
 TEST_TIMEOUT = 7.0  # Lower than 9s home assistant timeout
 
 
@@ -215,3 +217,16 @@ def hls_sync():
         side_effect=sync.response,
     ):
         yield sync
+
+
+@pytest.fixture(scope="package")
+def h264_video():
+    """Generate a video, shared across tests."""
+    return generate_h264_video()
+
+
+@pytest.fixture(scope="package", autouse=True)
+def fixture_teardown():
+    """Destroy package level test state."""
+    yield
+    stream_teardown()

tests/components/stream/test_hls.py

@@ -20,11 +20,7 @@ from homeassistant.setup import async_setup_component
 import homeassistant.util.dt as dt_util
 
 from tests.common import async_fire_time_changed
-from tests.components.stream.common import (
+from tests.components.stream.common import FAKE_TIME, DefaultSegment as Segment
-    FAKE_TIME,
-    DefaultSegment as Segment,
-    generate_h264_video,
-)
 
 STREAM_SOURCE = "some-stream-source"
 INIT_BYTES = b"init"
@@ -118,7 +114,7 @@ def make_playlist(
     return "\n".join(response)
 
 
-async def test_hls_stream(hass, hls_stream, stream_worker_sync):
+async def test_hls_stream(hass, hls_stream, stream_worker_sync, h264_video):
     """
     Test hls stream.
 
@@ -130,8 +126,7 @@ async def test_hls_stream(hass, hls_stream, stream_worker_sync):
     stream_worker_sync.pause()
 
     # Setup demo HLS track
-    source = generate_h264_video()
+    stream = create_stream(hass, h264_video, {})
-    stream = create_stream(hass, source, {})
 
     # Request stream
     stream.add_provider(HLS_PROVIDER)
@@ -169,15 +164,14 @@ async def test_hls_stream(hass, hls_stream, stream_worker_sync):
     assert fail_response.status == HTTPStatus.NOT_FOUND
 
 
-async def test_stream_timeout(hass, hass_client, stream_worker_sync):
+async def test_stream_timeout(hass, hass_client, stream_worker_sync, h264_video):
     """Test hls stream timeout."""
     await async_setup_component(hass, "stream", {"stream": {}})
 
     stream_worker_sync.pause()
 
     # Setup demo HLS track
-    source = generate_h264_video()
+    stream = create_stream(hass, h264_video, {})
-    stream = create_stream(hass, source, {})
 
     # Request stream
     stream.add_provider(HLS_PROVIDER)
@@ -211,15 +205,16 @@ async def test_stream_timeout(hass, hass_client, stream_worker_sync):
     assert fail_response.status == HTTPStatus.NOT_FOUND
 
 
-async def test_stream_timeout_after_stop(hass, hass_client, stream_worker_sync):
+async def test_stream_timeout_after_stop(
+    hass, hass_client, stream_worker_sync, h264_video
+):
     """Test hls stream timeout after the stream has been stopped already."""
     await async_setup_component(hass, "stream", {"stream": {}})
 
     stream_worker_sync.pause()
 
     # Setup demo HLS track
-    source = generate_h264_video()
+    stream = create_stream(hass, h264_video, {})
-    stream = create_stream(hass, source, {})
 
     # Request stream
     stream.add_provider(HLS_PROVIDER)

tests/components/stream/test_recorder.py

@@ -16,17 +16,14 @@ from homeassistant.exceptions import HomeAssistantError
 from homeassistant.setup import async_setup_component
 import homeassistant.util.dt as dt_util
 
+from .common import DefaultSegment as Segment, generate_h264_video, remux_with_audio
+
 from tests.common import async_fire_time_changed
-from tests.components.stream.common import (
-    DefaultSegment as Segment,
-    generate_h264_video,
-    remux_with_audio,
-)
 
 MAX_ABORT_SEGMENTS = 20  # Abort test to avoid looping forever
 
 
-async def test_record_stream(hass, hass_client, record_worker_sync):
+async def test_record_stream(hass, hass_client, record_worker_sync, h264_video):
     """
     Test record stream.
 
@@ -37,8 +34,7 @@ async def test_record_stream(hass, hass_client, record_worker_sync):
     await async_setup_component(hass, "stream", {"stream": {}})
 
     # Setup demo track
-    source = generate_h264_video()
+    stream = create_stream(hass, h264_video, {})
-    stream = create_stream(hass, source, {})
     with patch.object(hass.config, "is_allowed_path", return_value=True):
         await stream.async_record("/example/path")
 
@@ -54,13 +50,12 @@ async def test_record_stream(hass, hass_client, record_worker_sync):
 
 
 async def test_record_lookback(
-    hass, hass_client, stream_worker_sync, record_worker_sync
+    hass, hass_client, stream_worker_sync, record_worker_sync, h264_video
 ):
     """Exercise record with loopback."""
     await async_setup_component(hass, "stream", {"stream": {}})
 
-    source = generate_h264_video()
+    stream = create_stream(hass, h264_video, {})
-    stream = create_stream(hass, source, {})
 
     # Start an HLS feed to enable lookback
     stream.add_provider(HLS_PROVIDER)
@@ -74,7 +69,7 @@ async def test_record_lookback(
     stream.stop()
 
 
-async def test_recorder_timeout(hass, hass_client, stream_worker_sync):
+async def test_recorder_timeout(hass, hass_client, stream_worker_sync, h264_video):
     """
     Test recorder timeout.
 
@@ -87,9 +82,7 @@ async def test_recorder_timeout(hass, hass_client, stream_worker_sync):
 
     with patch("homeassistant.components.stream.IdleTimer.fire") as mock_timeout:
         # Setup demo track
-        source = generate_h264_video()
+        stream = create_stream(hass, h264_video, {})
-
-        stream = create_stream(hass, source, {})
         with patch.object(hass.config, "is_allowed_path", return_value=True):
             await stream.async_record("/example/path")
         recorder = stream.add_provider(RECORDER_PROVIDER)
@@ -109,13 +102,11 @@ async def test_recorder_timeout(hass, hass_client, stream_worker_sync):
         await hass.async_block_till_done()
 
 
-async def test_record_path_not_allowed(hass, hass_client):
+async def test_record_path_not_allowed(hass, hass_client, h264_video):
     """Test where the output path is not allowed by home assistant configuration."""
     await async_setup_component(hass, "stream", {"stream": {}})
 
-    # Setup demo track
+    stream = create_stream(hass, h264_video, {})
-    source = generate_h264_video()
-    stream = create_stream(hass, source, {})
     with patch.object(
         hass.config, "is_allowed_path", return_value=False
     ), pytest.raises(HomeAssistantError):
@@ -136,15 +127,14 @@ def add_parts_to_segment(segment, source):
     ]
 
 
-async def test_recorder_save(tmpdir):
+async def test_recorder_save(tmpdir, h264_video):
     """Test recorder save."""
     # Setup
-    source = generate_h264_video()
     filename = f"{tmpdir}/test.mp4"
 
     # Run
     segment = Segment(sequence=1)
-    add_parts_to_segment(segment, source)
+    add_parts_to_segment(segment, h264_video)
     segment.duration = 4
     recorder_save_worker(filename, [segment])
 
@@ -152,18 +142,17 @@ async def test_recorder_save(tmpdir):
     assert os.path.exists(filename)
 
 
-async def test_recorder_discontinuity(tmpdir):
+async def test_recorder_discontinuity(tmpdir, h264_video):
     """Test recorder save across a discontinuity."""
     # Setup
-    source = generate_h264_video()
     filename = f"{tmpdir}/test.mp4"
 
     # Run
     segment_1 = Segment(sequence=1, stream_id=0)
-    add_parts_to_segment(segment_1, source)
+    add_parts_to_segment(segment_1, h264_video)
     segment_1.duration = 4
     segment_2 = Segment(sequence=2, stream_id=1)
-    add_parts_to_segment(segment_2, source)
+    add_parts_to_segment(segment_2, h264_video)
     segment_2.duration = 4
     recorder_save_worker(filename, [segment_1, segment_2])
     # Assert
@@ -182,8 +171,29 @@ async def test_recorder_no_segments(tmpdir):
     assert not os.path.exists(filename)
 
 
+@pytest.fixture(scope="module")
+def h264_mov_video():
+    """Generate a source video with no audio."""
+    return generate_h264_video(container_format="mov")
+
+
+@pytest.mark.parametrize(
+    "audio_codec,expected_audio_streams",
+    [
+        ("aac", 1),  # aac is a valid mp4 codec
+        ("pcm_mulaw", 0),  # G.711 is not a valid mp4 codec
+        ("empty", 0),  # audio stream with no packets
+        (None, 0),  # no audio stream
+    ],
+)
 async def test_record_stream_audio(
-    hass, hass_client, stream_worker_sync, record_worker_sync
+    hass,
+    hass_client,
+    stream_worker_sync,
+    record_worker_sync,
+    audio_codec,
+    expected_audio_streams,
+    h264_mov_video,
 ):
     """
     Test treatment of different audio inputs.
@@ -193,17 +203,8 @@ async def test_record_stream_audio(
     """
     await async_setup_component(hass, "stream", {"stream": {}})
 
-    # Generate source video with no audio
-    orig_source = generate_h264_video(container_format="mov")
-
-    for a_codec, expected_audio_streams in (
-        ("aac", 1),  # aac is a valid mp4 codec
-        ("pcm_mulaw", 0),  # G.711 is not a valid mp4 codec
-        ("empty", 0),  # audio stream with no packets
-        (None, 0),  # no audio stream
-    ):
     # Remux source video with new audio
-        source = remux_with_audio(orig_source, "mov", a_codec)  # mov can store PCM
+    source = remux_with_audio(h264_mov_video, "mov", audio_codec)  # mov can store PCM
 
     record_worker_sync.reset()
     stream_worker_sync.pause()

tests/components/stream/test_worker.py

@@ -781,7 +781,7 @@ async def test_durations(hass, record_worker_sync):
     stream.stop()
 
 
-async def test_has_keyframe(hass, record_worker_sync):
+async def test_has_keyframe(hass, record_worker_sync, h264_video):
     """Test that the has_keyframe metadata matches the media."""
     await async_setup_component(
         hass,
@@ -797,8 +797,7 @@ async def test_has_keyframe(hass, record_worker_sync):
         },
     )
 
-    source = generate_h264_video()
+    stream = create_stream(hass, h264_video, {})
-    stream = create_stream(hass, source, {})
 
     # use record_worker_sync to grab output segments
     with patch.object(hass.config, "is_allowed_path", return_value=True):