Pull out torrent validation into validator class

util/config/validators/test/test_validate_torrent.py

@@ -0,0 +1,28 @@
+import pytest
+
+from httmock import urlmatch, HTTMock
+
+from util.config.validators import ConfigValidationException
+from util.config.validators.validate_torrent import BittorrentValidator
+
+@pytest.mark.parametrize('unvalidated_config,expected', [
+  ({}, ConfigValidationException),
+  ({'BITTORRENT_ANNOUNCE_URL': 'http://faketorrent/announce'}, None),
+])
+def test_validate_torrent(unvalidated_config,expected):
+  announcer_hit = [False]
+
+  @urlmatch(netloc=r'faketorrent', path='/announce')
+  def handler(url, request):
+    announcer_hit[0] = True
+    return {'status_code': 200, 'content': ''}
+
+  with HTTMock(handler):
+    validator = BittorrentValidator()
+    if expected is not None:
+      with pytest.raises(expected):
+        validator.validate(unvalidated_config, None, None)
+      assert not announcer_hit[0]
+    else:
+      validator.validate(unvalidated_config, None, None)
+      assert announcer_hit[0]