debian/copyright: Fix lintian's dep5-copyright-license-name-not-unique.

[youtubedl] / test / test_YoutubeDL.py

diff --git a/test/test_YoutubeDL.py b/test/test_YoutubeDL.py
index 3100c362aa6940d2c557dffb5cabb0f5564ef4a8..82b827536d746246d3241fd856f749945cf6d561 100644 (file)
--- a/test/test_YoutubeDL.py
+++ b/test/test_YoutubeDL.py
@@ -1,13 +1,22 @@
 #!/usr/bin/env python
 
 #!/usr/bin/env python
 

+from __future__ import unicode_literals
+

 # Allow direct execution
 import os
 import sys
 import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 # Allow direct execution
 import os
 import sys
 import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 

-from test.helper import FakeYDL
+import copy
+
+from test.helper import FakeYDL, assertRegexpMatches

 from youtube_dl import YoutubeDL
 from youtube_dl import YoutubeDL

+from youtube_dl.extractor import YoutubeIE
+from youtube_dl.postprocessor.common import PostProcessor
+from youtube_dl.utils import match_filter_func
+
+TEST_URL = 'http://localhost/sample.mp4'

 
 
 class YDL(FakeYDL):
 
 
 class YDL(FakeYDL):


@@ -23,111 +32,341 @@ class YDL(FakeYDL):
         self.msgs.append(msg)
 
 
         self.msgs.append(msg)
 
 

+def _make_result(formats, **kwargs):
+    res = {
+        'formats': formats,
+        'id': 'testid',
+        'title': 'testttitle',
+        'extractor': 'testex',
+    }
+    res.update(**kwargs)
+    return res
+
+

 class TestFormatSelection(unittest.TestCase):
     def test_prefer_free_formats(self):
         # Same resolution => download webm
         ydl = YDL()
         ydl.params['prefer_free_formats'] = True
         formats = [
 class TestFormatSelection(unittest.TestCase):
     def test_prefer_free_formats(self):
         # Same resolution => download webm
         ydl = YDL()
         ydl.params['prefer_free_formats'] = True
         formats = [

-            {u'ext': u'webm', u'height': 460},
-            {u'ext': u'mp4',  u'height': 460},
+            {'ext': 'webm', 'height': 460, 'url': TEST_URL},
+            {'ext': 'mp4', 'height': 460, 'url': TEST_URL},

         ]
         ]

-        info_dict = {u'formats': formats, u'extractor': u'test'}
+        info_dict = _make_result(formats)
+        yie = YoutubeIE(ydl)
+        yie._sort_formats(info_dict['formats'])

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded[u'ext'], u'webm')
+        self.assertEqual(downloaded['ext'], 'webm')

 
         # Different resolution => download best quality (mp4)
         ydl = YDL()
         ydl.params['prefer_free_formats'] = True
         formats = [
 
         # Different resolution => download best quality (mp4)
         ydl = YDL()
         ydl.params['prefer_free_formats'] = True
         formats = [

-            {u'ext': u'webm', u'height': 720},
-            {u'ext': u'mp4', u'height': 1080},
+            {'ext': 'webm', 'height': 720, 'url': TEST_URL},
+            {'ext': 'mp4', 'height': 1080, 'url': TEST_URL},

         ]
         ]

-        info_dict[u'formats'] = formats
+        info_dict['formats'] = formats
+        yie = YoutubeIE(ydl)
+        yie._sort_formats(info_dict['formats'])

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded[u'ext'], u'mp4')
+        self.assertEqual(downloaded['ext'], 'mp4')

 
 

-        # No prefer_free_formats => keep original formats order
+        # No prefer_free_formats => prefer mp4 and flv for greater compatibility

         ydl = YDL()
         ydl.params['prefer_free_formats'] = False
         formats = [
         ydl = YDL()
         ydl.params['prefer_free_formats'] = False
         formats = [

-            {u'ext': u'webm', u'height': 720},
-            {u'ext': u'flv', u'height': 720},
+            {'ext': 'webm', 'height': 720, 'url': TEST_URL},
+            {'ext': 'mp4', 'height': 720, 'url': TEST_URL},
+            {'ext': 'flv', 'height': 720, 'url': TEST_URL},

         ]
         ]

-        info_dict[u'formats'] = formats
+        info_dict['formats'] = formats
+        yie = YoutubeIE(ydl)
+        yie._sort_formats(info_dict['formats'])

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded[u'ext'], u'flv')
+        self.assertEqual(downloaded['ext'], 'mp4')

 
 

-    def test_format_limit(self):
+        ydl = YDL()
+        ydl.params['prefer_free_formats'] = False

         formats = [
         formats = [

-            {u'format_id': u'meh', u'url': u'http://example.com/meh'},
-            {u'format_id': u'good', u'url': u'http://example.com/good'},
-            {u'format_id': u'great', u'url': u'http://example.com/great'},
-            {u'format_id': u'excellent', u'url': u'http://example.com/exc'},
+            {'ext': 'flv', 'height': 720, 'url': TEST_URL},
+            {'ext': 'webm', 'height': 720, 'url': TEST_URL},

         ]
         ]

-        info_dict = {
-            u'formats': formats, u'extractor': u'test', 'id': 'testvid'}
-
-        ydl = YDL()
+        info_dict['formats'] = formats
+        yie = YoutubeIE(ydl)
+        yie._sort_formats(info_dict['formats'])

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded[u'format_id'], u'excellent')
+        self.assertEqual(downloaded['ext'], 'flv')

 
 

-        ydl = YDL({'format_limit': 'good'})
-        assert ydl.params['format_limit'] == 'good'
-        ydl.process_ie_result(info_dict)
+    def test_format_selection(self):
+        formats = [
+            {'format_id': '35', 'ext': 'mp4', 'preference': 1, 'url': TEST_URL},
+            {'format_id': '45', 'ext': 'webm', 'preference': 2, 'url': TEST_URL},
+            {'format_id': '47', 'ext': 'webm', 'preference': 3, 'url': TEST_URL},
+            {'format_id': '2', 'ext': 'flv', 'preference': 4, 'url': TEST_URL},
+        ]
+        info_dict = _make_result(formats)
+
+        ydl = YDL({'format': '20/47'})
+        ydl.process_ie_result(info_dict.copy())

         downloaded = ydl.downloaded_info_dicts[0]
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded[u'format_id'], u'good')
+        self.assertEqual(downloaded['format_id'], '47')

 
 

-        ydl = YDL({'format_limit': 'great', 'format': 'all'})
-        ydl.process_ie_result(info_dict)
-        self.assertEqual(ydl.downloaded_info_dicts[0][u'format_id'], u'meh')
-        self.assertEqual(ydl.downloaded_info_dicts[1][u'format_id'], u'good')
-        self.assertEqual(ydl.downloaded_info_dicts[2][u'format_id'], u'great')
-        self.assertTrue('3' in ydl.msgs[0])
+        ydl = YDL({'format': '20/71/worst'})
+        ydl.process_ie_result(info_dict.copy())
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], '35')

 
         ydl = YDL()
 
         ydl = YDL()

-        ydl.params['format_limit'] = 'excellent'
-        ydl.process_ie_result(info_dict)
+        ydl.process_ie_result(info_dict.copy())

         downloaded = ydl.downloaded_info_dicts[0]
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded[u'format_id'], u'excellent')
+        self.assertEqual(downloaded['format_id'], '2')
+
+        ydl = YDL({'format': 'webm/mp4'})
+        ydl.process_ie_result(info_dict.copy())
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], '47')
+
+        ydl = YDL({'format': '3gp/40/mp4'})
+        ydl.process_ie_result(info_dict.copy())
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], '35')
+
+    def test_format_selection_audio(self):
+        formats = [
+            {'format_id': 'audio-low', 'ext': 'webm', 'preference': 1, 'vcodec': 'none', 'url': TEST_URL},
+            {'format_id': 'audio-mid', 'ext': 'webm', 'preference': 2, 'vcodec': 'none', 'url': TEST_URL},
+            {'format_id': 'audio-high', 'ext': 'flv', 'preference': 3, 'vcodec': 'none', 'url': TEST_URL},
+            {'format_id': 'vid', 'ext': 'mp4', 'preference': 4, 'url': TEST_URL},
+        ]
+        info_dict = _make_result(formats)
+
+        ydl = YDL({'format': 'bestaudio'})
+        ydl.process_ie_result(info_dict.copy())
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'audio-high')
+
+        ydl = YDL({'format': 'worstaudio'})
+        ydl.process_ie_result(info_dict.copy())
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'audio-low')

 
 

-    def test_format_selection(self):

         formats = [
         formats = [

-            {u'format_id': u'35', u'ext': u'mp4'},
-            {u'format_id': u'45', u'ext': u'webm'},
-            {u'format_id': u'47', u'ext': u'webm'},
-            {u'format_id': u'2', u'ext': u'flv'},
+            {'format_id': 'vid-low', 'ext': 'mp4', 'preference': 1, 'url': TEST_URL},
+            {'format_id': 'vid-high', 'ext': 'mp4', 'preference': 2, 'url': TEST_URL},
+        ]
+        info_dict = _make_result(formats)
+
+        ydl = YDL({'format': 'bestaudio/worstaudio/best'})
+        ydl.process_ie_result(info_dict.copy())
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'vid-high')
+
+    def test_format_selection_audio_exts(self):
+        formats = [
+            {'format_id': 'mp3-64', 'ext': 'mp3', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
+            {'format_id': 'ogg-64', 'ext': 'ogg', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
+            {'format_id': 'aac-64', 'ext': 'aac', 'abr': 64, 'url': 'http://_', 'vcodec': 'none'},
+            {'format_id': 'mp3-32', 'ext': 'mp3', 'abr': 32, 'url': 'http://_', 'vcodec': 'none'},
+            {'format_id': 'aac-32', 'ext': 'aac', 'abr': 32, 'url': 'http://_', 'vcodec': 'none'},
+        ]
+
+        info_dict = _make_result(formats)
+        ydl = YDL({'format': 'best'})
+        ie = YoutubeIE(ydl)
+        ie._sort_formats(info_dict['formats'])
+        ydl.process_ie_result(copy.deepcopy(info_dict))
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'aac-64')
+
+        ydl = YDL({'format': 'mp3'})
+        ie = YoutubeIE(ydl)
+        ie._sort_formats(info_dict['formats'])
+        ydl.process_ie_result(copy.deepcopy(info_dict))
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'mp3-64')
+
+        ydl = YDL({'prefer_free_formats': True})
+        ie = YoutubeIE(ydl)
+        ie._sort_formats(info_dict['formats'])
+        ydl.process_ie_result(copy.deepcopy(info_dict))
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'ogg-64')
+
+    def test_format_selection_video(self):
+        formats = [
+            {'format_id': 'dash-video-low', 'ext': 'mp4', 'preference': 1, 'acodec': 'none', 'url': TEST_URL},
+            {'format_id': 'dash-video-high', 'ext': 'mp4', 'preference': 2, 'acodec': 'none', 'url': TEST_URL},
+            {'format_id': 'vid', 'ext': 'mp4', 'preference': 3, 'url': TEST_URL},
+        ]
+        info_dict = _make_result(formats)
+
+        ydl = YDL({'format': 'bestvideo'})
+        ydl.process_ie_result(info_dict.copy())
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'dash-video-high')
+
+        ydl = YDL({'format': 'worstvideo'})
+        ydl.process_ie_result(info_dict.copy())
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'dash-video-low')
+
+    def test_youtube_format_selection(self):
+        order = [
+            '38', '37', '46', '22', '45', '35', '44', '18', '34', '43', '6', '5', '36', '17', '13',
+            # Apple HTTP Live Streaming
+            '96', '95', '94', '93', '92', '132', '151',
+            # 3D
+            '85', '84', '102', '83', '101', '82', '100',
+            # Dash video
+            '137', '248', '136', '247', '135', '246',
+            '245', '244', '134', '243', '133', '242', '160',
+            # Dash audio
+            '141', '172', '140', '171', '139',

         ]
         ]

-        info_dict = {u'formats': formats, u'extractor': u'test'}

 
 

-        ydl = YDL({'format': u'20/47'})
+        for f1id, f2id in zip(order, order[1:]):
+            f1 = YoutubeIE._formats[f1id].copy()
+            f1['format_id'] = f1id
+            f1['url'] = 'url:' + f1id
+            f2 = YoutubeIE._formats[f2id].copy()
+            f2['format_id'] = f2id
+            f2['url'] = 'url:' + f2id
+
+            info_dict = _make_result([f1, f2], extractor='youtube')
+            ydl = YDL({'format': 'best/bestvideo'})
+            yie = YoutubeIE(ydl)
+            yie._sort_formats(info_dict['formats'])
+            ydl.process_ie_result(info_dict)
+            downloaded = ydl.downloaded_info_dicts[0]
+            self.assertEqual(downloaded['format_id'], f1id)
+
+            info_dict = _make_result([f2, f1], extractor='youtube')
+            ydl = YDL({'format': 'best/bestvideo'})
+            yie = YoutubeIE(ydl)
+            yie._sort_formats(info_dict['formats'])
+            ydl.process_ie_result(info_dict)
+            downloaded = ydl.downloaded_info_dicts[0]
+            self.assertEqual(downloaded['format_id'], f1id)
+
+    def test_format_filtering(self):
+        formats = [
+            {'format_id': 'A', 'filesize': 500, 'width': 1000},
+            {'format_id': 'B', 'filesize': 1000, 'width': 500},
+            {'format_id': 'C', 'filesize': 1000, 'width': 400},
+            {'format_id': 'D', 'filesize': 2000, 'width': 600},
+            {'format_id': 'E', 'filesize': 3000},
+            {'format_id': 'F'},
+            {'format_id': 'G', 'filesize': 1000000},
+        ]
+        for f in formats:
+            f['url'] = 'http://_/'
+            f['ext'] = 'unknown'
+        info_dict = _make_result(formats)
+
+        ydl = YDL({'format': 'best[filesize<3000]'})

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded['format_id'], u'47')
+        self.assertEqual(downloaded['format_id'], 'D')

 
 

-        ydl = YDL({'format': u'20/71/worst'})
+        ydl = YDL({'format': 'best[filesize<=3000]'})

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded['format_id'], u'35')
+        self.assertEqual(downloaded['format_id'], 'E')

 
 

-        ydl = YDL()
+        ydl = YDL({'format': 'best[filesize <= ? 3000]'})
+        ydl.process_ie_result(info_dict)
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'F')
+
+        ydl = YDL({'format': 'best [filesize = 1000] [width>450]'})
+        ydl.process_ie_result(info_dict)
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'B')
+
+        ydl = YDL({'format': 'best [filesize = 1000] [width!=450]'})

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded['format_id'], u'2')
+        self.assertEqual(downloaded['format_id'], 'C')

 
 

-        ydl = YDL({'format': u'webm/mp4'})
+        ydl = YDL({'format': '[filesize>?1]'})

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded['format_id'], u'47')
+        self.assertEqual(downloaded['format_id'], 'G')

 
 

-        ydl = YDL({'format': u'3gp/40/mp4'})
+        ydl = YDL({'format': '[filesize<1M]'})

         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]
         ydl.process_ie_result(info_dict)
         downloaded = ydl.downloaded_info_dicts[0]

-        self.assertEqual(downloaded['format_id'], u'35')
+        self.assertEqual(downloaded['format_id'], 'E')
+
+        ydl = YDL({'format': '[filesize<1MiB]'})
+        ydl.process_ie_result(info_dict)
+        downloaded = ydl.downloaded_info_dicts[0]
+        self.assertEqual(downloaded['format_id'], 'G')
+
+
+class TestYoutubeDL(unittest.TestCase):
+    def test_subtitles(self):
+        def s_formats(lang, autocaption=False):
+            return [{
+                'ext': ext,
+                'url': 'http://localhost/video.%s.%s' % (lang, ext),
+                '_auto': autocaption,
+            } for ext in ['vtt', 'srt', 'ass']]
+        subtitles = dict((l, s_formats(l)) for l in ['en', 'fr', 'es'])
+        auto_captions = dict((l, s_formats(l, True)) for l in ['it', 'pt', 'es'])
+        info_dict = {
+            'id': 'test',
+            'title': 'Test',
+            'url': 'http://localhost/video.mp4',
+            'subtitles': subtitles,
+            'automatic_captions': auto_captions,
+            'extractor': 'TEST',
+        }
+
+        def get_info(params={}):
+            params.setdefault('simulate', True)
+            ydl = YDL(params)
+            ydl.report_warning = lambda *args, **kargs: None
+            return ydl.process_video_result(info_dict, download=False)
+
+        result = get_info()
+        self.assertFalse(result.get('requested_subtitles'))
+        self.assertEqual(result['subtitles'], subtitles)
+        self.assertEqual(result['automatic_captions'], auto_captions)
+
+        result = get_info({'writesubtitles': True})
+        subs = result['requested_subtitles']
+        self.assertTrue(subs)
+        self.assertEqual(set(subs.keys()), set(['en']))
+        self.assertTrue(subs['en'].get('data') is None)
+        self.assertEqual(subs['en']['ext'], 'ass')
+
+        result = get_info({'writesubtitles': True, 'subtitlesformat': 'foo/srt'})
+        subs = result['requested_subtitles']
+        self.assertEqual(subs['en']['ext'], 'srt')
+
+        result = get_info({'writesubtitles': True, 'subtitleslangs': ['es', 'fr', 'it']})
+        subs = result['requested_subtitles']
+        self.assertTrue(subs)
+        self.assertEqual(set(subs.keys()), set(['es', 'fr']))
+
+        result = get_info({'writesubtitles': True, 'writeautomaticsub': True, 'subtitleslangs': ['es', 'pt']})
+        subs = result['requested_subtitles']
+        self.assertTrue(subs)
+        self.assertEqual(set(subs.keys()), set(['es', 'pt']))
+        self.assertFalse(subs['es']['_auto'])
+        self.assertTrue(subs['pt']['_auto'])
+
+        result = get_info({'writeautomaticsub': True, 'subtitleslangs': ['es', 'pt']})
+        subs = result['requested_subtitles']
+        self.assertTrue(subs)
+        self.assertEqual(set(subs.keys()), set(['es', 'pt']))
+        self.assertTrue(subs['es']['_auto'])
+        self.assertTrue(subs['pt']['_auto'])

 
     def test_add_extra_info(self):
         test_dict = {
 
     def test_add_extra_info(self):
         test_dict = {


@@ -143,17 +382,130 @@ class TestFormatSelection(unittest.TestCase):
 
     def test_prepare_filename(self):
         info = {
 
     def test_prepare_filename(self):
         info = {

-            u'id': u'1234',
-            u'ext': u'mp4',
-            u'width': None,
+            'id': '1234',
+            'ext': 'mp4',
+            'width': None,

         }
         }

+

         def fname(templ):
             ydl = YoutubeDL({'outtmpl': templ})
             return ydl.prepare_filename(info)
         def fname(templ):
             ydl = YoutubeDL({'outtmpl': templ})
             return ydl.prepare_filename(info)

-        self.assertEqual(fname(u'%(id)s.%(ext)s'), u'1234.mp4')
-        self.assertEqual(fname(u'%(id)s-%(width)s.%(ext)s'), u'1234-NA.mp4')
+        self.assertEqual(fname('%(id)s.%(ext)s'), '1234.mp4')
+        self.assertEqual(fname('%(id)s-%(width)s.%(ext)s'), '1234-NA.mp4')

         # Replace missing fields with 'NA'
         # Replace missing fields with 'NA'

-        self.assertEqual(fname(u'%(uploader_date)s-%(id)s.%(ext)s'), u'NA-1234.mp4')
+        self.assertEqual(fname('%(uploader_date)s-%(id)s.%(ext)s'), 'NA-1234.mp4')
+
+    def test_format_note(self):
+        ydl = YoutubeDL()
+        self.assertEqual(ydl._format_note({}), '')
+        assertRegexpMatches(self, ydl._format_note({
+            'vbr': 10,
+        }), '^\s*10k$')
+
+    def test_postprocessors(self):
+        filename = 'post-processor-testfile.mp4'
+        audiofile = filename + '.mp3'
+
+        class SimplePP(PostProcessor):
+            def run(self, info):
+                with open(audiofile, 'wt') as f:
+                    f.write('EXAMPLE')
+                return [info['filepath']], info
+
+        def run_pp(params, PP):
+            with open(filename, 'wt') as f:
+                f.write('EXAMPLE')
+            ydl = YoutubeDL(params)
+            ydl.add_post_processor(PP())
+            ydl.post_process(filename, {'filepath': filename})
+
+        run_pp({'keepvideo': True}, SimplePP)
+        self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
+        self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
+        os.unlink(filename)
+        os.unlink(audiofile)
+
+        run_pp({'keepvideo': False}, SimplePP)
+        self.assertFalse(os.path.exists(filename), '%s exists' % filename)
+        self.assertTrue(os.path.exists(audiofile), '%s doesn\'t exist' % audiofile)
+        os.unlink(audiofile)
+
+        class ModifierPP(PostProcessor):
+            def run(self, info):
+                with open(info['filepath'], 'wt') as f:
+                    f.write('MODIFIED')
+                return [], info
+
+        run_pp({'keepvideo': False}, ModifierPP)
+        self.assertTrue(os.path.exists(filename), '%s doesn\'t exist' % filename)
+        os.unlink(filename)
+
+    def test_match_filter(self):
+        class FilterYDL(YDL):
+            def __init__(self, *args, **kwargs):
+                super(FilterYDL, self).__init__(*args, **kwargs)
+                self.params['simulate'] = True
+
+            def process_info(self, info_dict):
+                super(YDL, self).process_info(info_dict)
+
+            def _match_entry(self, info_dict, incomplete):
+                res = super(FilterYDL, self)._match_entry(info_dict, incomplete)
+                if res is None:
+                    self.downloaded_info_dicts.append(info_dict)
+                return res
+
+        first = {
+            'id': '1',
+            'url': TEST_URL,
+            'title': 'one',
+            'extractor': 'TEST',
+            'duration': 30,
+            'filesize': 10 * 1024,
+        }
+        second = {
+            'id': '2',
+            'url': TEST_URL,
+            'title': 'two',
+            'extractor': 'TEST',
+            'duration': 10,
+            'description': 'foo',
+            'filesize': 5 * 1024,
+        }
+        videos = [first, second]
+
+        def get_videos(filter_=None):
+            ydl = FilterYDL({'match_filter': filter_})
+            for v in videos:
+                ydl.process_ie_result(v, download=True)
+            return [v['id'] for v in ydl.downloaded_info_dicts]
+
+        res = get_videos()
+        self.assertEqual(res, ['1', '2'])
+
+        def f(v):
+            if v['id'] == '1':
+                return None
+            else:
+                return 'Video id is not 1'
+        res = get_videos(f)
+        self.assertEqual(res, ['1'])
+
+        f = match_filter_func('duration < 30')
+        res = get_videos(f)
+        self.assertEqual(res, ['2'])
+
+        f = match_filter_func('description = foo')
+        res = get_videos(f)
+        self.assertEqual(res, ['2'])
+
+        f = match_filter_func('description =? foo')
+        res = get_videos(f)
+        self.assertEqual(res, ['1', '2'])
+
+        f = match_filter_func('filesize > 5KiB')
+        res = get_videos(f)
+        self.assertEqual(res, ['1'])

 
 
 if __name__ == '__main__':
 
 
 if __name__ == '__main__':