Initial checkin of media test matrix class, which will be used for media perf test later.

chrome/test/functional/media_test_matrix_unittest.py

+#!/usr/bin/python
+
+# Copyright (c) 2011 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 os
+import random
+import unittest
+from media_test_matrix import MediaTestMatrix
+
+
+class MediaTestMatrixTest(unittest.TestCase):
+  """Unit test for MediaTestMatrix class."""
+
+  def __readCSVFile(self):

[dennis_jeffrey, 2011/03/18 17:47:50]

In the function name, capitalize the "r" at the beginning.  Function names
should start with a capital letter when possible (one exception is for the
"test" functions below, which need to start with a lower-case as per the
unittest module).

[imasaki1, 2011/03/18 21:54:25]

Done also make this private

+    """read CSV file for test and returns a media test matrix object.

[dennis_jeffrey, 2011/03/18 17:47:50]

Capitalize the "r" in "read" and change it to "Reads"

[imasaki1, 2011/03/18 21:54:25]

Done.

+
+    Returns:
+      a media test matrix

[dennis_jeffrey, 2011/03/18 17:47:50]

Capitalize the starting "a", and add a period at the end.

[imasaki1, 2011/03/18 21:54:25]

Done.

+    """
+    matrix = MediaTestMatrix()
+    # Pyauto.DataDir() method is not used to avoid dependency to pyauto.
+    data_file = os.path.join('..', 'data', 'media', 'media_matrix_data.csv')
+    matrix.ReadData(data_file)
+    return matrix
+
+  def testGenerateAllMediaInfosInCompactForm(self):
+    matrix = self.__readCSVFile()
+    media_test_matrix_list = matrix.GenerateAllMediaInfosInCompactForm(True)
+    self.assertEqual(len(media_test_matrix_list), 240)
+    mobile_test_info = MediaTestMatrix.LookForMediaInfoByNickName(
+      media_test_matrix_list, "mobile0.webm")

[dennis_jeffrey, 2011/03/18 17:47:50]

When the function call in the previous line doesn't include any parameters, the
next line should be indented 4 spaces rather than 2.  So this line should be
indented by 2 additional spaces.

[imasaki1, 2011/03/18 21:54:25]

Done.

+    self.assertEqual(mobile_test_info[1], "mobile0.webm")

[dennis_jeffrey, 2011/03/18 17:47:50]

Prefer single quotes to double quotes in strings, here and at line 33 above.

[dennis_jeffrey, 2011/03/18 17:47:50]

Before accessing position 1 of the mobile_test_info list, you might want to
verify that the list does have at least one element.

[imasaki1, 2011/03/18 21:54:25]

Done.

[imasaki1, 2011/03/18 21:54:25]

Done.

[imasaki1, 2011/03/18 21:54:25]

Done.

+
+  def testGenerateAllMediaInfos(self):
+    matrix = self.__readCSVFile()
+    media_test_matrix_list = matrix.GenerateAllMediaInfos(True)
+    self.assertEqual(len(media_test_matrix_list), 240)
+    (info, url, link, tag,
+      is_video, nickname) = matrix.GenerateRandomMediaInfo()

[dennis_jeffrey, 2011/03/18 17:47:50]

I think lines 40-41 might look better like this:

info, url, link, tag, is_video, nickname = (
    matrix.GenerateRandomMediaInfo())

[imasaki1, 2011/03/18 21:54:25]

Done.

+    self.assertTrue(info is not None)

[dennis_jeffrey, 2011/03/18 17:47:50]

Thanks for adding these extra tests.  Could you also check to make sure there
are no more functions that are missing unit tests?

[imasaki1, 2011/03/18 21:54:25]

Done.

+
+if __name__ == '__main__':
+    unittest.main()