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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,200 @@ | ||
| from __future__ import annotations | ||
|
|
||
| import datetime | ||
| import gc | ||
| import time | ||
| import unittest | ||
| from unittest.mock import MagicMock | ||
| from unittest.mock import patch | ||
|
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| import cv2 | ||
|
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| from src.stream_capture import StreamCapture | ||
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| class TestStreamCapture(unittest.TestCase): | ||
| def setUp(self): | ||
| self.stream_url = 'https://www.youtube.com/watch?v=mf-1VZ6ewlE' | ||
| self.capture_interval = 15 | ||
| self.stream_capture = StreamCapture( | ||
| self.stream_url, self.capture_interval, | ||
| ) | ||
|
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| @patch('src.stream_capture.cv2.VideoCapture') | ||
| def test_initialise_stream(self, mock_video_capture): | ||
| mock_cap_instance = MagicMock() | ||
| mock_video_capture.return_value = mock_cap_instance | ||
|
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| self.stream_capture.initialise_stream() | ||
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| mock_video_capture.assert_called_with(self.stream_url) | ||
| mock_cap_instance.set.assert_any_call(cv2.CAP_PROP_BUFFERSIZE, 1) | ||
| mock_cap_instance.set.assert_any_call( | ||
| cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*'H264'), | ||
| ) | ||
| self.assertTrue(mock_cap_instance.isOpened.called) | ||
|
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||
| @patch('src.stream_capture.cv2.VideoCapture') | ||
| def test_release_resources(self, mock_video_capture): | ||
| mock_cap_instance = MagicMock() | ||
| mock_video_capture.return_value = mock_cap_instance | ||
| self.stream_capture.cap = mock_cap_instance | ||
|
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| self.stream_capture.release_resources() | ||
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| mock_cap_instance.release.assert_called_once() | ||
| self.assertIsNone(self.stream_capture.cap) | ||
| gc.collect() | ||
|
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| @patch('src.stream_capture.cv2.VideoCapture') | ||
| @patch('src.stream_capture.datetime') | ||
| @patch('src.stream_capture.gc.collect') | ||
| def test_capture_frames( | ||
| self, mock_gc_collect, mock_datetime, mock_video_capture, | ||
| ): | ||
| mock_cap_instance = MagicMock() | ||
| mock_video_capture.return_value = mock_cap_instance | ||
| self.stream_capture.cap = mock_cap_instance | ||
|
|
||
| mock_now = datetime.datetime(2023, 1, 1, 0, 0, 0) | ||
| mock_later = mock_now + \ | ||
| datetime.timedelta(seconds=self.capture_interval + 1) | ||
| mock_datetime.datetime.now.side_effect = [ | ||
| mock_now, | ||
| mock_now, | ||
| mock_later, | ||
| ] | ||
|
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| mock_cap_instance.read.side_effect = [ | ||
| (True, MagicMock()), (True, MagicMock()), | ||
| ] | ||
|
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| frame_generator = self.stream_capture.capture_frames() | ||
|
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| frame, timestamp = next(frame_generator) | ||
| self.assertIsNotNone(frame) | ||
| self.assertEqual(timestamp, mock_now.timestamp()) | ||
|
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| frame, timestamp = next(frame_generator) | ||
| self.assertIsNotNone(frame) | ||
| self.assertEqual(timestamp, mock_later.timestamp()) | ||
|
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| self.stream_capture.release_resources() | ||
| mock_gc_collect.assert_called() | ||
|
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||
| @patch('src.stream_capture.speedtest.Speedtest') | ||
| def test_check_internet_speed(self, mock_speedtest): | ||
| mock_st_instance = MagicMock() | ||
| mock_speedtest.return_value = mock_st_instance | ||
|
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| mock_st_instance.download.return_value = 100_000_000 | ||
| mock_st_instance.upload.return_value = 50_000_000 | ||
|
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| download_speed, upload_speed = ( | ||
| self.stream_capture.check_internet_speed() | ||
| ) | ||
|
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| self.assertEqual(download_speed, 100.0) | ||
| self.assertEqual(upload_speed, 50.0) | ||
|
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| @patch('src.stream_capture.streamlink.streams') | ||
| @patch('src.stream_capture.StreamCapture.check_internet_speed') | ||
| def test_select_quality_based_on_speed( | ||
| self, mock_check_internet_speed, mock_streams, | ||
| ): | ||
| mock_check_internet_speed.return_value = (15.0, 5.0) | ||
| mock_streams.return_value = { | ||
| 'best': MagicMock(url=self.stream_url), | ||
| '1080p': MagicMock(url=self.stream_url), | ||
| '720p': MagicMock(url=self.stream_url), | ||
| } | ||
|
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| selected_quality = self.stream_capture.select_quality_based_on_speed() | ||
| self.assertEqual(selected_quality, self.stream_url) | ||
|
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| @patch('src.stream_capture.streamlink.streams') | ||
| @patch('src.stream_capture.StreamCapture.check_internet_speed') | ||
| def test_select_quality_based_on_speed_no_quality( | ||
| self, mock_check_internet_speed, mock_streams, | ||
| ): | ||
| mock_check_internet_speed.return_value = (2.0, 1.0) | ||
| mock_streams.return_value = { | ||
| '720p': MagicMock(url=self.stream_url), | ||
| '480p': MagicMock(url=self.stream_url), | ||
| } | ||
|
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| selected_quality = self.stream_capture.select_quality_based_on_speed() | ||
| self.assertEqual(selected_quality, self.stream_url) | ||
|
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| @patch('src.stream_capture.cv2.VideoCapture') | ||
| @patch('src.stream_capture.streamlink.streams') | ||
| @patch('src.stream_capture.StreamCapture.check_internet_speed') | ||
| def test_capture_youtube_frames( | ||
| self, mock_check_internet_speed, mock_streams, mock_video_capture, | ||
| ): | ||
| mock_check_internet_speed.return_value = (15.0, 5.0) | ||
| mock_streams.return_value = { | ||
| 'best': MagicMock(url=self.stream_url), | ||
| '1080p': MagicMock(url=self.stream_url), | ||
| '720p': MagicMock(url=self.stream_url), | ||
| } | ||
| mock_cap_instance = MagicMock() | ||
| mock_video_capture.return_value = mock_cap_instance | ||
| self.stream_capture.cap = mock_cap_instance | ||
|
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| mock_cap_instance.read.side_effect = [ | ||
| (True, MagicMock()), (True, MagicMock()), | ||
| ] | ||
|
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| frame_generator = self.stream_capture.capture_youtube_frames() | ||
|
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| try: | ||
| frame, timestamp = next(frame_generator) | ||
| self.assertIsNotNone(frame) | ||
| self.assertIsInstance(timestamp, float) | ||
| except StopIteration: | ||
| self.fail('Generator stopped unexpectedly') | ||
|
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||
| mock_now_later = datetime.datetime.now( | ||
| ) + datetime.timedelta(seconds=self.capture_interval + 1) | ||
| with patch( | ||
| 'src.stream_capture.datetime.datetime.now', | ||
| return_value=mock_now_later, | ||
| ): | ||
| frame, timestamp = next(frame_generator) | ||
| self.assertIsNotNone(frame) | ||
| self.assertIsInstance(timestamp, float) | ||
|
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| self.stream_capture.release_resources() | ||
|
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| @patch('src.stream_capture.StreamCapture.capture_frames') | ||
| def test_execute_capture(self, mock_capture_frames): | ||
| expected_timestamp = time.time() # 使用当前时间戳 | ||
| mock_capture_frames.return_value = iter( | ||
| [(MagicMock(), expected_timestamp)], | ||
| ) | ||
| frames_generator = self.stream_capture.execute_capture() | ||
|
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| frame, timestamp = next(frames_generator) | ||
| self.assertIsNotNone(frame) | ||
| self.assertAlmostEqual( | ||
| timestamp, expected_timestamp, delta=40, | ||
| ) # 允许更大的差异 | ||
|
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||
| @patch('src.stream_capture.StreamCapture.capture_youtube_frames') | ||
| def test_execute_capture_youtube(self, mock_capture_youtube_frames): | ||
| self.stream_capture.stream_url = ( | ||
| 'https://www.youtube.com/watch?v=mf-1VZ6ewlE' | ||
| ) | ||
| mock_capture_youtube_frames.return_value = iter( | ||
| [(MagicMock(), 1234567890.0)], | ||
| ) | ||
| frames_generator = self.stream_capture.execute_capture() | ||
|
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| frame, timestamp = next(frames_generator) | ||
| self.assertIsNotNone(frame) | ||
| self.assertAlmostEqual(timestamp, 1234567890.0, delta=40) | ||
|
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|
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| if __name__ == '__main__': | ||
| unittest.main() |