Update mojo sdk to rev 8d45c89c30b230843c5bd6dd0693a555750946c0

third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom_tests/fileutil_unittest.py

Index: third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom_tests/fileutil_unittest.py
diff --git a/third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom_tests/fileutil_unittest.py b/third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom_tests/fileutil_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..d56faadb196c95b8f7a860a0c51bf50cc87a7d91
--- /dev/null
+++ b/third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom_tests/fileutil_unittest.py
@@ -0,0 +1,55 @@
+# Copyright 2015 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 imp
+import os.path
+import shutil
+import sys
+import tempfile
+import unittest
+
+def _GetDirAbove(dirname):
+  """Returns the directory "above" this file containing |dirname| (which must
+  also be "above" this file)."""
+  path = os.path.abspath(__file__)
+  while True:
+    path, tail = os.path.split(path)
+    assert tail
+    if tail == dirname:
+      return path
+
+try:
+  imp.find_module("mojom")
+except ImportError:
+  sys.path.append(os.path.join(_GetDirAbove("pylib"), "pylib"))
+from mojom import fileutil
+
+
+class FileUtilTest(unittest.TestCase):
+
+  def testEnsureDirectoryExists(self):
+    """Test that EnsureDirectoryExists fuctions correctly."""
+
+    temp_dir = tempfile.mkdtemp()
+    try:
+      self.assertTrue(os.path.exists(temp_dir))
+
+      # Directory does not exist, yet.
+      full = os.path.join(temp_dir, "foo", "bar")
+      self.assertFalse(os.path.exists(full))
+
+      # Create the directory.
+      fileutil.EnsureDirectoryExists(full)
+      self.assertTrue(os.path.exists(full))
+
+      # Trying to create it again does not cause an error.
+      fileutil.EnsureDirectoryExists(full)
+      self.assertTrue(os.path.exists(full))
+
+      # Bypass check for directory existence to tickle error handling that
+      # occurs in response to a race.
+      fileutil.EnsureDirectoryExists(full, always_try_to_create=True)
+      self.assertTrue(os.path.exists(full))
+    finally:
+      shutil.rmtree(temp_dir)