Added unittests to the extractor pakage

src/run_tests.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+import unittest
+
+testmodules = ['test.test_extractors']
+
+suite = unittest.TestSuite()
+
+for t in testmodules:
+    try:
+        # If the module defines a suite() function, call it to get the suite.
+        mod = __import__(t, globals(), locals(), ['suite'])
+        suitefn = getattr(mod, 'suite')
+        suite.addTest(suitefn())
+    except (ImportError, AttributeError):
+        # else, just load all the test cases from the module.
+        suite.addTest(unittest.defaultTestLoader.loadTestsFromName(t))
+
+unittest.TextTestRunner().run(suite)

src/test/test_extractors.py

@@ -0,0 +1,80 @@
+""" Unittests for extractors present in MusicDL. """
+from __future__ import unicode_literals
+import sys
+import unittest
+import re
+import i18n
+import extractors
+from extractors import baseFile
+
+# Pytohn 2/3 compat
+if sys.version[0] == "2":
+	strtype = unicode
+else:
+	strtype = str
+
+class extractorsTestCase(unittest.TestCase):
+
+	def setUp(self):
+		i18n.setup()
+
+	def search(self, extractor_name, search_query="piano", skip_validation=False):
+		""" Blank here"""
+		# Test basic instance stuff.
+		extractor_instance = getattr(extractors, extractor_name).interface()
+		extractor_instance.search(search_query)
+		self.assertIsInstance(extractor_instance.results, list)
+		self.assertNotEqual(len(extractor_instance.results), 0)
+		self.assertIsInstance(len(extractor_instance.results), int)
+		# Take and test validity of the first item.
+		item = extractor_instance.results[0]
+		self.assertIsInstance(item, baseFile.song)
+		self.assertIsInstance(item.title, strtype)
+		self.assertNotEqual(item.title, "")
+		if extractor_name == "youtube": # Duration is only available for youtube.
+			self.assertIsInstance(item.duration, strtype)
+			self.assertNotEqual(item.duration, "")
+		self.assertIsInstance(item.url, strtype)
+		self.assertNotEqual(item.url, "")
+		if extractor_name == "youtube" and skip_validation == False:
+			match = re.search("((?<=(v|V)/)|(?<=be/)|(?<=(\?|\&)v=)|(?<=embed/))([\w-]+)", item.url)
+			self.assertNotEqual(match, None)
+		formatted_track = item.format_track()
+		self.assertIsInstance(formatted_track, strtype)
+		self.assertNotEquals(formatted_track, "")
+		item.get_download_url()
+		self.assertIsInstance(item.download_url, strtype)
+		self.assertNotEquals(item.download_url, "")
+
+	def search_blank(self, extractor_name, search_query=""):
+		extractor_instance = getattr(extractors, extractor_name).interface()
+		self.assertRaises(ValueError, extractor_instance.search, search_query)
+
+	def test_youtube_search(self):
+		""" Testing a Youtube search. """
+		self.search("youtube")
+
+	def test_youtube_search_blank(self):
+		""" Testing a youtube search when text is blank or not passed. """
+		self.search_blank("youtube")
+
+	def test_youtube_direct_link(self):
+		self.search("youtube", "https://www.youtube.com/watch?v=hwDiI9p9L-g")
+
+	def test_youtube_playlist(self):
+		self.search("youtube", "https://www.youtube.com/playlist?list=PLqivnvaruBVH8fqI5JU9h5jZKV-32bbEn", skip_validation=True)
+
+	def test_mailru_search(self):
+		self.search("mailru")
+
+	def test_mailru_search_blank(self):
+		self.search_blank("mailru")
+
+	def test_zaycev_search(self):
+		self.search("zaycev")
+
+	def test_zaycev_search_blank(self):
+		self.search_blank("zaycev")
+
+if __name__ == "__main__":
+	unittest.main()