[test] Use `pytest` instead of `nosetests` (#482)

`nosetests` is no longer being maintained : https://github.com/nose-devs/nose/issues/1099
and will stop working in py 3.10 as can be seen in #480

22 files changed, 97 insertions, 78 deletions

diff --git a/.github/workflows/core.yml b/.github/workflows/core.yml
index be932275a..f2d31c134 100644
--- a/.github/workflows/core.yml
+++ b/.github/workflows/core.yml
@@ -23,11 +23,9 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
-    - name: Install nose
-      run: pip install nose
+    - name: Install pytest
+      run: pip install pytest
     - name: Run tests
       continue-on-error: False
-      env:
-        YTDL_TEST_SET: core
-      run: ./devscripts/run_tests.${{ matrix.run-tests-ext }}
+      run: ./devscripts/run_tests.${{ matrix.run-tests-ext }} core
   # Linter is in quick-test
diff --git a/.github/workflows/download.yml b/.github/workflows/download.yml
index 9e650d2dc..3b63fdd35 100644
--- a/.github/workflows/download.yml
+++ b/.github/workflows/download.yml
@@ -21,10 +21,8 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
-    - name: Install nose
-      run: pip install nose
+    - name: Install pytest
+      run: pip install pytest
     - name: Run tests
       continue-on-error: true
-      env:
-        YTDL_TEST_SET: download
-      run: ./devscripts/run_tests.${{ matrix.run-tests-ext }}
+      run: ./devscripts/run_tests.${{ matrix.run-tests-ext }} download
diff --git a/.github/workflows/quick-test.yml b/.github/workflows/quick-test.yml
index 584cd5f2a..7d409dfc4 100644
--- a/.github/workflows/quick-test.yml
+++ b/.github/workflows/quick-test.yml
@@ -12,11 +12,9 @@ jobs:
       with:
         python-version: 3.9
     - name: Install test requirements
-      run: pip install nose pycryptodome
+      run: pip install pytest pycryptodome
     - name: Run tests
-      env:
-        YTDL_TEST_SET: core
-      run: ./devscripts/run_tests.sh
+      run: ./devscripts/run_tests.sh core
   flake8:
     name: Linter
     if: "!contains(github.event.head_commit.message, 'ci skip all')"
@@ -30,4 +28,4 @@ jobs:
     - name: Install flake8
       run: pip install flake8
     - name: Run flake8
-      run: flake8 .
\ No newline at end of file
+      run: flake8 .
diff --git a/.gitignore b/.gitignore
index 711bffaba..7ed34448a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -45,6 +45,7 @@ cookies.txt
 # Python
 *.pyc
 *.pyo
+.pytest_cache
 wine-py2exe/
 py2exe.log
 build/
@@ -79,6 +80,7 @@ README.txt
 *.tar.gz
 *.zsh
 *.spec
+test/testdata/player-*.js
 
 # Binary
 /youtube-dl
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ef18bb4bc..5faf97b10 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -81,16 +81,17 @@ To run the test, simply invoke your favorite test runner, or execute a test file
     python -m unittest discover
     python test/test_download.py
     nosetests
+    pytest
 
 See item 6 of [new extractor tutorial](#adding-support-for-a-new-site) for how to run extractor specific test cases.
 
 If you want to create a build of youtube-dl yourself, you'll need
 
-* python
+* python3
 * make (only GNU make is supported)
 * pandoc
 * zip
-* nosetests
+* pytest
 
 ### Adding support for a new site
 
diff --git a/Makefile b/Makefile
index aad312362..fb7b8a0cc 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ pypi-files: AUTHORS Changelog.md LICENSE README.md README.txt supportedsites com
 .PHONY: all clean install test tar pypi-files completions ot offlinetest codetest supportedsites
 
 clean-test:
-	rm -rf *.dump *.part* *.ytdl *.info.json *.mp4 *.m4a *.flv *.mp3 *.avi *.mkv *.webm *.3gp *.wav *.ape *.swf *.jpg *.png *.frag *.frag.urls *.frag.aria2
+	rm -rf *.dump *.part* *.ytdl *.info.json *.mp4 *.m4a *.flv *.mp3 *.avi *.mkv *.webm *.3gp *.wav *.ape *.swf *.jpg *.png *.frag *.frag.urls *.frag.aria2 test/testdata/player-*.js
 clean-dist:
 	rm -rf yt-dlp.1.temp.md yt-dlp.1 README.txt MANIFEST build/ dist/ .coverage cover/ yt-dlp.tar.gz completions/ yt_dlp/extractor/lazy_extractors.py *.spec CONTRIBUTING.md.tmp yt-dlp yt-dlp.exe yt_dlp.egg-info/ AUTHORS .mailmap
 clean-cache:
@@ -49,23 +49,11 @@ codetest:
 	flake8 .
 
 test:
-	#nosetests --with-coverage --cover-package=yt_dlp --cover-html --verbose --processes 4 test
-	nosetests --verbose test
+	$(PYTHON) -m pytest
 	$(MAKE) codetest
 
-# Keep this list in sync with devscripts/run_tests.sh
 offlinetest: codetest
-	$(PYTHON) -m nose --verbose test \
-		--exclude test_age_restriction.py \
-		--exclude test_download.py \
-		--exclude test_iqiyi_sdk_interpreter.py \
-		--exclude test_overwrites.py \
-		--exclude test_socks.py \
-		--exclude test_subtitles.py \
-		--exclude test_write_annotations.py \
-		--exclude test_youtube_lists.py \
-		--exclude test_youtube_signature.py \
-		--exclude test_post_hooks.py
+	$(PYTHON) -m pytest -k "not download"
 
 yt-dlp: yt_dlp/*.py yt_dlp/*/*.py
 	mkdir -p zip
diff --git a/README.md b/README.md
index d879dc4c4..b4e7e6e86 100644
--- a/README.md
+++ b/README.md
@@ -215,7 +215,7 @@ You can also build the executable without any version info or metadata by using:
 Note that pyinstaller [does not support](https://github.com/pyinstaller/pyinstaller#requirements-and-tested-platforms) Python installed from the Windows store without using a virtual environment
 
 **For Unix**:
-You will need the required build tools: `python`, `make` (GNU), `pandoc`, `zip`, `nosetests`  
+You will need the required build tools: `python`, `make` (GNU), `pandoc`, `zip`, `pytest`  
 Then simply run `make`. You can also run `make yt-dlp` instead to compile only the binary without updating any of the additional files
 
 **Note**: In either platform, `devscripts\update-version.py` can be used to automatically update the version number
diff --git a/devscripts/run_tests.bat b/devscripts/run_tests.bat
index 531af4066..f12ae1c1b 100644
--- a/devscripts/run_tests.bat
+++ b/devscripts/run_tests.bat
@@ -1,17 +1,16 @@
+@setlocal
 @echo off
+cd /d %~dp0..
 
-rem Keep this list in sync with the `offlinetest` target in Makefile
-set DOWNLOAD_TESTS="age_restriction^|download^|iqiyi_sdk_interpreter^|socks^|subtitles^|write_annotations^|youtube_lists^|youtube_signature^|post_hooks"
-
-if "%YTDL_TEST_SET%" == "core" (
-    set test_set="-I test_("%DOWNLOAD_TESTS%")\.py"
-    set multiprocess_args=""
-) else if "%YTDL_TEST_SET%" == "download" (
-    set test_set="-I test_(?!"%DOWNLOAD_TESTS%").+\.py"
-    set multiprocess_args="--processes=4 --process-timeout=540"
+if ["%~1"]==[""] (
+    set "test_set="
+) else if ["%~1"]==["core"] (
+    set "test_set=-k "not download""
+) else if ["%~1"]==["download"] (
+    set "test_set=-k download"
 ) else (
-    echo YTDL_TEST_SET is not set or invalid
+    echo.Invalid test type "%~1". Use "core" ^| "download"
     exit /b 1
 )
 
-nosetests test --verbose %test_set:"=% %multiprocess_args:"=%
+pytest %test_set%
diff --git a/devscripts/run_tests.sh b/devscripts/run_tests.sh
index b5a56facb..99ab0a793 100755
--- a/devscripts/run_tests.sh
+++ b/devscripts/run_tests.sh
@@ -1,22 +1,15 @@
-#!/bin/bash
-
-# Keep this list in sync with the `offlinetest` target in Makefile
-DOWNLOAD_TESTS="age_restriction|download|iqiyi_sdk_interpreter|overwrites|socks|subtitles|write_annotations|youtube_lists|youtube_signature|post_hooks"
-
-test_set=""
-multiprocess_args=""
-
-case "$YTDL_TEST_SET" in
-    core)
-        test_set="-I test_($DOWNLOAD_TESTS)\.py"
-    ;;
-    download)
-        test_set="-I test_(?!$DOWNLOAD_TESTS).+\.py"
-        multiprocess_args="--processes=4 --process-timeout=540"
-    ;;
-    *)
-        break
-    ;;
-esac
-
-nosetests test --verbose $test_set $multiprocess_args
+#!/bin/sh
+
+if [ -z $1 ]; then
+    test_set='test'
+elif [ $1 = 'core' ]; then
+    test_set='not download'
+elif [ $1 = 'download' ]; then
+    test_set='download'
+else
+    echo 'Invalid test type "'$1'". Use "core" | "download"'
+    exit 1
+fi
+
+echo python3 -m pytest -k $test_set
+python3 -m pytest -k "$test_set"
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 000000000..52feb4aba
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,4 @@
+[pytest]
+addopts = -ra -v --strict-markers
+markers =
+    download
diff --git a/test/helper.py b/test/helper.py
index 963c40508..b40ffe3ce 100644
--- a/test/helper.py
+++ b/test/helper.py
@@ -22,6 +22,14 @@ from yt_dlp.utils import (
 )
 
 
+if "pytest" in sys.modules:
+    import pytest
+    is_download_test = pytest.mark.download
+else:
+    def is_download_test(testClass):
+        return testClass
+
+
 def get_params(override=None):
     PARAMETERS_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)),
                                    "parameters.json")
diff --git a/test/test_InfoExtractor.py b/test/test_InfoExtractor.py
index 9b6672a1d..cbca22c91 100644
--- a/test/test_InfoExtractor.py
+++ b/test/test_InfoExtractor.py
@@ -35,13 +35,13 @@ class InfoExtractorTestRequestHandler(compat_http_server.BaseHTTPRequestHandler)
             assert False
 
 
-class TestIE(InfoExtractor):
+class DummyIE(InfoExtractor):
     pass
 
 
 class TestInfoExtractor(unittest.TestCase):
     def setUp(self):
-        self.ie = TestIE(FakeYDL())
+        self.ie = DummyIE(FakeYDL())
 
     def test_ie_key(self):
         self.assertEqual(get_info_extractor(YoutubeIE.ie_key()), YoutubeIE)
diff --git a/test/test_age_restriction.py b/test/test_age_restriction.py
index af89f29ff..70f9f4845 100644
--- a/test/test_age_restriction.py
+++ b/test/test_age_restriction.py
@@ -7,8 +7,7 @@ import sys
 import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-from test.helper import try_rm
-
+from test.helper import try_rm, is_download_test
 
 from yt_dlp import YoutubeDL
 
@@ -32,6 +31,7 @@ def _download_restricted(url, filename, age):
     return res
 
 
+@is_download_test
 class TestAgeRestriction(unittest.TestCase):
     def _assert_restricted(self, url, filename, age, old_age=None):
         self.assertTrue(_download_restricted(url, filename, old_age))
diff --git a/test/test_download.py b/test/test_download.py
index 23d733f44..e4485ce81 100644
--- a/test/test_download.py
+++ b/test/test_download.py
@@ -10,12 +10,13 @@ sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 from test.helper import (
     assertGreaterEqual,
+    expect_info_dict,
     expect_warnings,
     get_params,
     gettestcases,
-    expect_info_dict,
-    try_rm,
+    is_download_test,
     report_warning,
+    try_rm,
 )
 
 
@@ -64,6 +65,7 @@ def _file_md5(fn):
 defs = gettestcases()
 
 
+@is_download_test
 class TestDownload(unittest.TestCase):
     # Parallel testing in nosetests. See
     # http://nose.readthedocs.org/en/latest/doc_tests/test_multiprocess/multiprocess.html
diff --git a/test/test_iqiyi_sdk_interpreter.py b/test/test_iqiyi_sdk_interpreter.py
index e6ed9d628..ee039f898 100644
--- a/test/test_iqiyi_sdk_interpreter.py
+++ b/test/test_iqiyi_sdk_interpreter.py
@@ -8,7 +8,7 @@ import sys
 import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-from test.helper import FakeYDL
+from test.helper import FakeYDL, is_download_test
 from yt_dlp.extractor import IqiyiIE
 
 
@@ -31,6 +31,7 @@ class WarningLogger(object):
         pass
 
 
+@is_download_test
 class TestIqiyiSDKInterpreter(unittest.TestCase):
     def test_iqiyi_sdk_interpreter(self):
         '''
diff --git a/test/test_post_hooks.py b/test/test_post_hooks.py
index 3f9a61c1e..1555a23e0 100644
--- a/test/test_post_hooks.py
+++ b/test/test_post_hooks.py
@@ -7,7 +7,7 @@ import sys
 import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-from test.helper import get_params, try_rm
+from test.helper import get_params, try_rm, is_download_test
 import yt_dlp.YoutubeDL
 from yt_dlp.utils import DownloadError
 
@@ -22,6 +22,7 @@ TEST_ID = 'gr51aVj-mLg'
 EXPECTED_NAME = 'gr51aVj-mLg'
 
 
+@is_download_test
 class TestPostHooks(unittest.TestCase):
     def setUp(self):
         self.stored_name_1 = None
diff --git a/test/test_socks.py b/test/test_socks.py
index 76aabb27f..cf1f613ab 100644
--- a/test/test_socks.py
+++ b/test/test_socks.py
@@ -14,6 +14,7 @@ import subprocess
 from test.helper import (
     FakeYDL,
     get_params,
+    is_download_test,
 )
 from yt_dlp.compat import (
     compat_str,
@@ -21,6 +22,7 @@ from yt_dlp.compat import (
 )
 
 
+@is_download_test
 class TestMultipleSocks(unittest.TestCase):
     @staticmethod
     def _check_params(attrs):
@@ -76,6 +78,7 @@ class TestMultipleSocks(unittest.TestCase):
             params['secondary_server_ip'])
 
 
+@is_download_test
 class TestSocks(unittest.TestCase):
     _SKIP_SOCKS_TEST = True
 
diff --git a/test/test_subtitles.py b/test/test_subtitles.py
index f7f356832..0c5b49ee8 100644
--- a/test/test_subtitles.py
+++ b/test/test_subtitles.py
@@ -7,7 +7,7 @@ import sys
 import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-from test.helper import FakeYDL, md5
+from test.helper import FakeYDL, md5, is_download_test
 
 
 from yt_dlp.extractor import (
@@ -30,6 +30,7 @@ from yt_dlp.extractor import (
 )
 
 
+@is_download_test
 class BaseTestSubtitles(unittest.TestCase):
     url = None
     IE = None
@@ -55,6 +56,7 @@ class BaseTestSubtitles(unittest.TestCase):
         return dict((l, sub_info['data']) for l, sub_info in subtitles.items())
 
 
+@is_download_test
 class TestYoutubeSubtitles(BaseTestSubtitles):
     url = 'QRS8MkLhQmM'
     IE = YoutubeIE
@@ -111,6 +113,7 @@ class TestYoutubeSubtitles(BaseTestSubtitles):
         self.assertFalse(subtitles)
 
 
+@is_download_test
 class TestDailymotionSubtitles(BaseTestSubtitles):
     url = 'http://www.dailymotion.com/video/xczg00'
     IE = DailymotionIE
@@ -134,6 +137,7 @@ class TestDailymotionSubtitles(BaseTestSubtitles):
         self.assertFalse(subtitles)
 
 
+@is_download_test
 class TestTedSubtitles(BaseTestSubtitles):
     url = 'http://www.ted.com/talks/dan_dennett_on_our_consciousness.html'
     IE = TEDIE
@@ -149,6 +153,7 @@ class TestTedSubtitles(BaseTestSubtitles):
             self.assertTrue(subtitles.get(lang) is not None, 'Subtitles for \'%s\' not extracted' % lang)
 
 
+@is_download_test
 class TestVimeoSubtitles(BaseTestSubtitles):
     url = 'http://vimeo.com/76979871'
     IE = VimeoIE
@@ -170,6 +175,7 @@ class TestVimeoSubtitles(BaseTestSubtitles):
         self.assertFalse(subtitles)
 
 
+@is_download_test
 class TestWallaSubtitles(BaseTestSubtitles):
     url = 'http://vod.walla.co.il/movie/2705958/the-yes-men'
     IE = WallaIE
@@ -191,6 +197,7 @@ class TestWallaSubtitles(BaseTestSubtitles):
         self.assertFalse(subtitles)
 
 
+@is_download_test
 class TestCeskaTelevizeSubtitles(BaseTestSubtitles):
     url = 'http://www.ceskatelevize.cz/ivysilani/10600540290-u6-uzasny-svet-techniky'
     IE = CeskaTelevizeIE
@@ -212,6 +219,7 @@ class TestCeskaTelevizeSubtitles(BaseTestSubtitles):
         self.assertFalse(subtitles)
 
 
+@is_download_test
 class TestLyndaSubtitles(BaseTestSubtitles):
     url = 'http://www.lynda.com/Bootstrap-tutorials/Using-exercise-files/110885/114408-4.html'
     IE = LyndaIE
@@ -224,6 +232,7 @@ class TestLyndaSubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['en']), '09bbe67222259bed60deaa26997d73a7')
 
 
+@is_download_test
 class TestNPOSubtitles(BaseTestSubtitles):
     url = 'http://www.npo.nl/nos-journaal/28-08-2014/POW_00722860'
     IE = NPOIE
@@ -236,6 +245,7 @@ class TestNPOSubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['nl']), 'fc6435027572b63fb4ab143abd5ad3f4')
 
 
+@is_download_test
 class TestMTVSubtitles(BaseTestSubtitles):
     url = 'http://www.cc.com/video-clips/p63lk0/adam-devine-s-house-party-chasing-white-swans'
     IE = ComedyCentralIE
@@ -251,6 +261,7 @@ class TestMTVSubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['en']), '78206b8d8a0cfa9da64dc026eea48961')
 
 
+@is_download_test
 class TestNRKSubtitles(BaseTestSubtitles):
     url = 'http://tv.nrk.no/serie/ikke-gjoer-dette-hjemme/DMPV73000411/sesong-2/episode-1'
     IE = NRKTVIE
@@ -263,6 +274,7 @@ class TestNRKSubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['no']), '544fa917d3197fcbee64634559221cc2')
 
 
+@is_download_test
 class TestRaiPlaySubtitles(BaseTestSubtitles):
     IE = RaiPlayIE
 
@@ -283,6 +295,7 @@ class TestRaiPlaySubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['it']), '4b3264186fbb103508abe5311cfcb9cd')
 
 
+@is_download_test
 class TestVikiSubtitles(BaseTestSubtitles):
     url = 'http://www.viki.com/videos/1060846v-punch-episode-18'
     IE = VikiIE
@@ -295,6 +308,7 @@ class TestVikiSubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['en']), '53cb083a5914b2d84ef1ab67b880d18a')
 
 
+@is_download_test
 class TestThePlatformSubtitles(BaseTestSubtitles):
     # from http://www.3playmedia.com/services-features/tools/integrations/theplatform/
     # (see http://theplatform.com/about/partners/type/subtitles-closed-captioning/)
@@ -309,6 +323,7 @@ class TestThePlatformSubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['en']), '97e7670cbae3c4d26ae8bcc7fdd78d4b')
 
 
+@is_download_test
 class TestThePlatformFeedSubtitles(BaseTestSubtitles):
     url = 'http://feed.theplatform.com/f/7wvmTC/msnbc_video-p-test?form=json&pretty=true&range=-40&byGuid=n_hardball_5biden_140207'
     IE = ThePlatformFeedIE
@@ -321,6 +336,7 @@ class TestThePlatformFeedSubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['en']), '48649a22e82b2da21c9a67a395eedade')
 
 
+@is_download_test
 class TestRtveSubtitles(BaseTestSubtitles):
     url = 'http://www.rtve.es/alacarta/videos/los-misterios-de-laura/misterios-laura-capitulo-32-misterio-del-numero-17-2-parte/2428621/'
     IE = RTVEALaCartaIE
@@ -335,6 +351,7 @@ class TestRtveSubtitles(BaseTestSubtitles):
         self.assertEqual(md5(subtitles['es']), '69e70cae2d40574fb7316f31d6eb7fca')
 
 
+@is_download_test
 class TestDemocracynowSubtitles(BaseTestSubtitles):
     url = 'http://www.democracynow.org/shows/2015/7/3'
     IE = DemocracynowIE
diff --git a/test/test_write_annotations.py b/test/test_write_annotations.py
index fa31be0cc..7e4d8bc5a 100644
--- a/test/test_write_annotations.py
+++ b/test/test_write_annotations.py
@@ -8,7 +8,7 @@ import sys
 import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-from test.helper import get_params, try_rm
+from test.helper import get_params, try_rm, is_download_test
 
 
 import io
@@ -38,6 +38,7 @@ ANNOTATIONS_FILE = TEST_ID + '.annotations.xml'
 EXPECTED_ANNOTATIONS = ['Speech bubble', 'Note', 'Title', 'Spotlight', 'Label']
 
 
+@is_download_test
 class TestAnnotations(unittest.TestCase):
     def setUp(self):
         # Clear old files
diff --git a/test/test_youtube_lists.py b/test/test_youtube_lists.py
index 528b75334..e831393e4 100644
--- a/test/test_youtube_lists.py
+++ b/test/test_youtube_lists.py
@@ -7,7 +7,7 @@ import sys
 import unittest
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-from test.helper import FakeYDL
+from test.helper import FakeYDL, is_download_test
 
 
 from yt_dlp.extractor import (
@@ -17,6 +17,7 @@ from yt_dlp.extractor import (
 )
 
 
+@is_download_test
 class TestYoutubeLists(unittest.TestCase):
     def assertIsPlaylist(self, info):
         """Make sure the info has '_type' set to 'playlist'"""
diff --git a/test/test_youtube_signature.py b/test/test_youtube_signature.py
index 1a5063bab..dcf6ab60d 100644
--- a/test/test_youtube_signature.py
+++ b/test/test_youtube_signature.py
@@ -12,7 +12,7 @@ import io
 import re
 import string
 
-from test.helper import FakeYDL
+from test.helper import FakeYDL, is_download_test
 from yt_dlp.extractor import YoutubeIE
 from yt_dlp.compat import compat_str, compat_urlretrieve
 
@@ -65,6 +65,7 @@ _TESTS = [
 ]
 
 
+@is_download_test
 class TestPlayerInfo(unittest.TestCase):
     def test_youtube_extract_player_info(self):
         PLAYER_URLS = (
@@ -87,6 +88,7 @@ class TestPlayerInfo(unittest.TestCase):
             self.assertEqual(player_id, expected_player_id)
 
 
+@is_download_test
 class TestSignature(unittest.TestCase):
     def setUp(self):
         TEST_DIR = os.path.dirname(os.path.abspath(__file__))
diff --git a/tox.ini b/tox.ini
index 4e7143fc6..d4e80a368 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,7 @@
 [tox]
 envlist = py26,py27,py33,py34,py35
+
+# Needed?
 [testenv]
 deps =
    nose