Readd missing unittests for owners

tests/owners_unittest.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Unit tests for owners.py."""
 
 import os
 import sys
 import unittest
@@ skipping 31 matching lines @@
     '/chrome/renderer/OWNERS': owners_file(peter),
     '/chrome/renderer/gpu/gpu_channel_host.h': '',
     '/chrome/renderer/safe_browsing/scorer.h': '',
     '/content/OWNERS': owners_file(john, darin, comment='foo', noparent=True),
     '/content/content.gyp': '',
     '/content/bar/foo.cc': '',
     '/content/baz/OWNERS': owners_file(brett),
     '/content/baz/froboz.h': '',
     '/content/views/OWNERS': owners_file(ben, john, owners.EVERYONE,
                                          noparent=True),
+    '/content/views/pie.h': '',
   })
 
 
 class OwnersDatabaseTest(unittest.TestCase):
   def setUp(self):
     self.repo = test_repo()
     self.files = self.repo.files
     self.root = '/'
     self.fopen = self.repo.open_for_reading
 
@@ skipping 88 matching lines @@
       self.assertRaises(AssertionError, db.reviewers_for,
                         (f for f in ['x', 'y']))
 
     # Check that the files are under the root.
     db.root = '/checkout'
     self.assertRaises(AssertionError, db.reviewers_for, ['/OWNERS'])
 
   def test_reviewers_for__wildcard_dir(self):
     self.assert_reviewers_for(['DEPS'], [owners.EVERYONE])
 
+  def test_reviewers_for__one_owner(self):
+    self.assert_reviewers_for([
+        '/chrome/gpu/gpu_channel.h',
+        '/content/baz/froboz.h',
+        '/chrome/renderer/gpu/gpu_channel_host.h'], [brett])
+
+  def test_reviewers_for__two_owners(self):
+    self.assert_reviewers_for([
+        '/chrome/gpu/gpu_channel.h',
+        '/content/content.gyp',
+        '/content/baz/froboz.h',
+        '/content/views/pie.h'
+        ], [john, brett])
+
+  def test_reviewers_for__all_files(self):
+    self.assert_reviewers_for([
+        '/chrome/gpu/gpu_channel.h',
+        '/chrome/renderer/gpu/gpu_channel_host.h',
+        '/chrome/renderer/safe_browsing/scorer.h',
+        '/content/content.gyp',
+        '/content/bar/foo.cc',
+        '/content/baz/froboz.h',
+        '/content/views/pie.h'], [john, brett])
+
   def assert_syntax_error(self, owners_file_contents):
     db = self.db()
     self.files['/foo/OWNERS'] = owners_file_contents
     self.files['/foo/DEPS'] = ''
     try:
       db.reviewers_for(['/foo/DEPS'])
       self.fail()  # pragma: no cover
     except owners.SyntaxErrorInOwnersFile, e:
       self.assertTrue(str(e).startswith('/foo/OWNERS:1'))
 
   def test_syntax_error__unknown_token(self):
     self.assert_syntax_error('{}\n')
 
   def test_syntax_error__unknown_set(self):
     self.assert_syntax_error('set myfatherisbillgates\n')
 
   def test_syntax_error__bad_email(self):
     self.assert_syntax_error('ben\n')
 
 
 if __name__ == '__main__':
   unittest.main()