Intial checkin of layout test analyzer.

media/tools/layout_tests/test_expectations_history_unittest.py

Index: media/tools/layout_tests/test_expectations_history_unittest.py
diff --git a/media/tools/layout_tests/test_expectations_history_unittest.py b/media/tools/layout_tests/test_expectations_history_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..a5b8a256166608dc8e36d30a0903c37dc5d92107
--- /dev/null
+++ b/media/tools/layout_tests/test_expectations_history_unittest.py
@@ -0,0 +1,64 @@
+#!/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 unittest
+import time
+from datetime import timedelta
+from datetime import datetime

[dennis_jeffrey, 2011/08/25 00:36:46]

Re-arrange the above 4 lines to put them in order by package name.

[imasaki1, 2011/08/25 23:57:03]

Done.

+from test_expectations_history import TestExpectationsHistory
+
+
+class TestTestExpectaionsHistory(unittest.TestCase):
+  """A Unittest class for test_expectation_history module."""

[dennis_jeffrey, 2011/08/25 00:36:46]

'Unit tests for the TestExpectationsHistory class.'

[imasaki1, 2011/08/25 23:57:03]

Done.

+
+  def AssertTestName(self, result_list, testname):
+    """Assert test name in the result_list

[dennis_jeffrey, 2011/08/25 00:36:46]

add period at end of line

[imasaki1, 2011/08/25 23:57:03]

Done.

+
+    This method is to chek the test name is in the result.

[dennis_jeffrey, 2011/08/25 00:36:46]

I think this line is unnecessary; the first line of the docstring above already
talks about this.

[imasaki1, 2011/08/25 23:57:03]

Done.

+    Args:
+      result_list: a result list of tuples returned by
+          |GetDiffBetweenTimesOnly1Diff()|. Each tuple consists of
+          (old_rev, new_rev, author, date, message, lines) where
+          |lines| are the entries in the test expectaton

[dennis_jeffrey, 2011/08/25 00:36:46]

'expectaton' --> 'expectation'.  Also add a period at the end of the line

[imasaki1, 2011/08/25 23:57:03]

Done.

+      testname: a testname string.
+
+    Returns:
+      True if the result contains the testname.

[dennis_jeffrey, 2011/08/25 00:36:46]

add this: ', and False otherwise.'

[imasaki1, 2011/08/25 23:57:03]

Done.

+    """
+    for (old_rev, new_rev, author, date, message, lines) in result_list:

[dennis_jeffrey, 2011/08/25 00:36:46]

We only actually need to use variable "lines", so we can probably name all the
other variables as "_" since they're not used.

[imasaki1, 2011/08/25 23:57:03]

Done.

+      for line in lines:
+        if testname in line:
+          return True
+    return False

[dennis_jeffrey, 2011/08/25 00:36:46]

I think we can probably reduce this function down to one or two lines through
creative use of list comprehensions, but will leave that up to you as an
optional exercise if you'd like to try it.

[imasaki1, 2011/08/25 23:57:03]

Done.

+
+  def testGetDiffBetweenTimes(self):
+    t = (2011, 8, 20, 0, 0, 0, 0, 0, 0)
+    ctime = time.mktime(t)
+    t = (2011, 8, 19, 0, 0, 0, 0, 0, 0)
+    ptime = time.mktime(t)
+    testname = 'fast/css/getComputedStyle/computed-style-without-renderer.html'
+    testname_list = (
+        [testname])

[dennis_jeffrey, 2011/08/25 00:36:46]

Can fit on the previous line

[imasaki1, 2011/08/25 23:57:03]

Done.

+    result_list = TestExpectationsHistory.GetDiffBetweenTimes(
+        ctime, ptime, testname_list)
+    self.assertTrue(self.AssertTestName(result_list, testname))
+
+  def testGetDiffBetweenTimesOnly1Diff(self):
+    ptime = '2011-08-19-23'
+    ptime = datetime.strptime(ptime, "%Y-%m-%d-%H")

[dennis_jeffrey, 2011/08/25 00:36:46]

Combine the above 2 lines into 1 line

[imasaki1, 2011/08/25 23:57:03]

Done.

+    ptime = time.mktime(ptime.timetuple())
+    ctime = '2011-08-20-00'
+    ctime = datetime.strptime(ctime, "%Y-%m-%d-%H")

[dennis_jeffrey, 2011/08/25 00:36:46]

Combine the above 2 lines into 1 line

[imasaki1, 2011/08/25 23:57:03]

Done.

+    ctime = time.mktime(ctime.timetuple())
+    testname = 'fast/css/getComputedStyle/computed-style-without-renderer.html'
+    testname_list = (
+        [testname])

[dennis_jeffrey, 2011/08/25 00:36:46]

can fit on the previous line

[imasaki1, 2011/08/25 23:57:03]

Done.

+    result_list = TestExpectationsHistory.GetDiffBetweenTimes(
+        ctime, ptime, testname_list)
+    self.assertTrue(self.AssertTestName(result_list, testname))
+
+
+if __name__ == '__main__':
+  unittest.main()