video stub server changes for hls

TNL-6543

common/djangoapps/terrain/stubs/tests/test_video.py

+"""
+Unit tests for Video stub server implementation.
+"""
+import unittest
+import requests
+from terrain.stubs.video_source import VideoSourceHttpService
+from django.conf import settings
+
+HLS_MANIFEST_TEXT = """
+#EXTM3U
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=264787,RESOLUTION=1280x720
+history_264kbit/history_264kbit.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=328415,RESOLUTION=1920x1080
+history_328kbit/history_328kbit.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=70750,RESOLUTION=640x360
+history_70kbit/history_70kbit.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=148269,RESOLUTION=960x540
+history_148kbit/history_148kbit.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=41276,RESOLUTION=640x360
+history_41kbit/history_41kbit.m3u8
+"""
+
+
+class StubVideoServiceTest(unittest.TestCase):
+    """
+    Test cases for the video stub service.
+    """
+    def setUp(self):
+        """
+        Start the stub server.
+        """
+        super(StubVideoServiceTest, self).setUp()
+        self.server = VideoSourceHttpService()
+        self.server.config['root_dir'] = '{}/data/video'.format(settings.TEST_ROOT)
+        self.addCleanup(self.server.shutdown)
+
+    def test_get_hls_manifest(self):
+        """
+        Verify that correct hls manifest is received.
+        """
+        response = requests.get("http://127.0.0.1:{port}/hls/history.m3u8".format(port=self.server.port))
+        self.assertTrue(response.ok)
+        self.assertEqual(response.text, HLS_MANIFEST_TEXT.lstrip())
+        self.assertEqual(response.headers['Access-Control-Allow-Origin'], '*')

common/djangoapps/terrain/stubs/video_source.py

@@ -24,6 +24,13 @@ class VideoSourceRequestHandler(SimpleHTTPRequestHandler):
         path = '{}{}'.format(root_dir, path)
         return path.split('?')[0]
 
+    def end_headers(self):
+        """
+        This is required by hls.js to play hls videos.
+        """
+        self.send_header('Access-Control-Allow-Origin', '*')
+        SimpleHTTPRequestHandler.end_headers(self)
+
 
 class VideoSourceHttpService(StubHttpService):
     """

test_root/data/video/hls/history.m3u8

+#EXTM3U
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=264787,RESOLUTION=1280x720
+history_264kbit/history_264kbit.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=328415,RESOLUTION=1920x1080
+history_328kbit/history_328kbit.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=70750,RESOLUTION=640x360
+history_70kbit/history_70kbit.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=148269,RESOLUTION=960x540
+history_148kbit/history_148kbit.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=41276,RESOLUTION=640x360
+history_41kbit/history_41kbit.m3u8

test_root/data/video/hls/history_148kbit/history_148kbit.m3u8

+#EXTM3U
+#EXT-X-VERSION:3
+#EXT-X-TARGETDURATION:11
+#EXT-X-MEDIA-SEQUENCE:0
+#EXTINF:9.576244,
+XXXXXXXXT114-V015600_2_0.ts
+#EXT-X-ENDLIST

test_root/data/video/hls/history_264kbit/history_264kbit.m3u8

+#EXTM3U
+#EXT-X-VERSION:3
+#EXT-X-TARGETDURATION:11
+#EXT-X-MEDIA-SEQUENCE:0
+#EXTINF:9.576244,
+XXXXXXXXT114-V015600_1_0.ts
+#EXT-X-ENDLIST

test_root/data/video/hls/history_328kbit/history_328kbit.m3u8

+#EXTM3U
+#EXT-X-VERSION:3
+#EXT-X-TARGETDURATION:11
+#EXT-X-MEDIA-SEQUENCE:0
+#EXTINF:9.576244,
+XXXXXXXXT114-V015600_0_0.ts
+#EXT-X-ENDLIST

test_root/data/video/hls/history_41kbit/history_41kbit.m3u8

+#EXTM3U
+#EXT-X-VERSION:3
+#EXT-X-TARGETDURATION:11
+#EXT-X-MEDIA-SEQUENCE:0
+#EXTINF:9.609611,
+XXXXXXXXT114-V015600_4_0.ts
+#EXT-X-ENDLIST

test_root/data/video/hls/history_70kbit/history_70kbit.m3u8

+#EXTM3U
+#EXT-X-VERSION:3
+#EXT-X-TARGETDURATION:11
+#EXT-X-MEDIA-SEQUENCE:0
+#EXTINF:9.609611,
+XXXXXXXXT114-V015600_3_0.ts
+#EXT-X-ENDLIST