Docserver: Add FileSystem.Exists method and start sanity checking path format

chrome/common/extensions/docs/server2/path_util_test.py

Index: chrome/common/extensions/docs/server2/path_util_test.py
diff --git a/chrome/common/extensions/docs/server2/path_util_test.py b/chrome/common/extensions/docs/server2/path_util_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..26527a06ad1d16a71bbd069cd84c21a80642ef42
--- /dev/null
+++ b/chrome/common/extensions/docs/server2/path_util_test.py
@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+# Copyright 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import unittest
+
+from path_util import SplitParent
+
+
+class PathUtilTest(unittest.TestCase):
+
+  def testSplitParent(self):
+    self.assertEqual(('', 'hi'), SplitParent('hi'))
+    self.assertEqual(('', 'hi/'), SplitParent('hi/'))
+    self.assertEqual(('/', 'hi'), SplitParent('/hi'))
+    self.assertEqual(('/', 'hi/'), SplitParent('/hi/'))
+    self.assertEqual(('parent', 'hi'), SplitParent('parent/hi'))
+    self.assertEqual(('parent', 'hi/'), SplitParent('parent/hi/'))
+    self.assertEqual(('/parent', 'hi'), SplitParent('/parent/hi'))
+    self.assertEqual(('/parent', 'hi/'), SplitParent('/parent/hi/'))
+    self.assertEqual(('p1/p2', 'hi'), SplitParent('p1/p2/hi'))
+    self.assertEqual(('p1/p2', 'hi/'), SplitParent('p1/p2/hi/'))
+    self.assertEqual(('/p1/p2', 'hi'), SplitParent('/p1/p2/hi'))
+    self.assertEqual(('/p1/p2', 'hi/'), SplitParent('/p1/p2/hi/'))
+
+
+if __name__ == '__main__':
+  unittest.main()