Add LogDog Python client library.

client/libs/logdog/tests/streamname_test.py

Index: client/libs/logdog/tests/streamname_test.py
diff --git a/client/libs/logdog/tests/streamname_test.py b/client/libs/logdog/tests/streamname_test.py
new file mode 100644
index 0000000000000000000000000000000000000000..94a895d4366fd29afbf289666f3202abc56d6f6f
--- /dev/null
+++ b/client/libs/logdog/tests/streamname_test.py
@@ -0,0 +1,46 @@
+# Copyright 2016 The LUCI Authors. All rights reserved.
+# Use of this source code is governed by the Apache v2.0 license that can be
+# found in the LICENSE file.
+
+import unittest
+import itertools
+import StringIO
+
+from client.libs.logdog import streamname
+
+
+class StreamNameTestCase(unittest.TestCase):
+
+  def testInvalidStreamNamesRaiseValueError(self):
+    for name in (
+        '',
+        'a' * (streamname._MAX_STREAM_NAME_LENGTH+1),
+        ' s p a c e s ',
+        '-hyphen',
+        'stream/path/+/not/name',
+    ):
+      raised = False
+      try:
+        streamname.validate_stream_name(name)
+      except ValueError:
+        raised = True
+      self.assertTrue(raised, "Stream name '%s' did not raise ValueError" % (

[martiniss, 2016/05/10 22:12:38]

you can do `with self.assertRaises(ValueError)` instead?

[dnj (Google), 2016/05/12 17:54:03]

Done.

+          name,))
+
+  def testValidStreamNamesDoNotRaise(self):
+    for name in (
+        'a',
+        'a' * (streamname._MAX_STREAM_NAME_LENGTH),
+        'foo/bar',
+        'f123/four/five-_.:',
+    ):
+      raised = False
+      try:
+        streamname.validate_stream_name(name)
+      except ValueError:
+        raised = True
+      self.assertFalse(raised, "Stream name '%s' raised ValueError" % (name,))
+
+
+if __name__ == '__main__':
+  unittest.main()