Makes host driven tests use the common sharder.

build/android/pylib/base/shard_unittest.py

 # 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.
 
 """Unittests for shard.py."""
 
 import os
 import sys
 import unittest
 
@@ skipping 104 matching lines @@
   def testThreadSafeCounter(self):
     counter = shard._ThreadSafeCounter()
     for i in xrange(5):
       self.assertEqual(counter.GetAndIncrement(), i)
 
 
 class TestThreadGroupFunctions(unittest.TestCase):
   """Tests for shard._RunAllTests and shard._CreateRunners."""
   def setUp(self):
     self.tests = ['a', 'b', 'c', 'd', 'e', 'f', 'g']
+    shared_test_collection = shard._TestCollection(
+        [shard._Test(t) for t in self.tests])
+    self.test_collection_factory = lambda: shared_test_collection
 
   def testCreate(self):
     runners = shard._CreateRunners(MockRunner, ['0', '1'])
     for runner in runners:
       self.assertEqual(runner.setups, 1)
     self.assertEqual(set([r.device for r in runners]),
                      set(['0', '1']))
     self.assertEqual(set([r.shard_index for r in runners]),
                      set([0, 1]))
 
   def testRun(self):
     runners = [MockRunner('0'), MockRunner('1')]
-    results, exit_code = shard._RunAllTests(runners, self.tests, 0)
+    results, exit_code = shard._RunAllTests(
+        runners, self.test_collection_factory, 0)
     self.assertEqual(len(results.GetPass()), len(self.tests))
     self.assertEqual(exit_code, 0)
 
   def testTearDown(self):
     runners = [MockRunner('0'), MockRunner('1')]
     shard._TearDownRunners(runners)
     for runner in runners:
       self.assertEqual(runner.teardowns, 1)
 
   def testRetry(self):
     runners = shard._CreateRunners(MockRunnerFail, ['0', '1'])
-    results, exit_code = shard._RunAllTests(runners, self.tests, 0)
+    results, exit_code = shard._RunAllTests(
+        runners, self.test_collection_factory, 0)
     self.assertEqual(len(results.GetFail()), len(self.tests))
     self.assertEqual(exit_code, constants.ERROR_EXIT_CODE)
 
   def testReraise(self):
     runners = shard._CreateRunners(MockRunnerException, ['0', '1'])
     with self.assertRaises(TestException):
-      shard._RunAllTests(runners, self.tests, 0)
+      shard._RunAllTests(runners, self.test_collection_factory, 0)
 
 
 class TestShard(unittest.TestCase):
-  """Tests for shard.Shard."""
+  """Tests for shard.ShardAndRunTests."""
   @staticmethod
   def _RunShard(runner_factory):
-    return shard.ShardAndRunTests(runner_factory, ['0', '1'], ['a', 'b', 'c'])
+    return shard.ShardAndRunTests(['a', 'b', 'c'], runner_factory, ['0', '1'])
 
   def testShard(self):
     results, exit_code = TestShard._RunShard(MockRunner)
     self.assertEqual(len(results.GetPass()), 3)
     self.assertEqual(exit_code, 0)
 
   def testFailing(self):
     results, exit_code = TestShard._RunShard(MockRunnerFail)
     self.assertEqual(len(results.GetPass()), 0)
     self.assertEqual(len(results.GetFail()), 3)
     self.assertEqual(exit_code, 0)
 
   def testNoTests(self):
-    results, exit_code = shard.ShardAndRunTests(MockRunner, ['0', '1'], [])
+    results, exit_code = shard.ShardAndRunTests([], MockRunner, ['0', '1'])
     self.assertEqual(len(results.GetAll()), 0)
     self.assertEqual(exit_code, constants.ERROR_EXIT_CODE)
 
+
+class TestReplicate(unittest.TestCase):
+  """Tests for shard.ReplicateAndRunTests."""
+  @staticmethod
+  def _RunReplicate(runner_factory):
+    return shard.ReplicateAndRunTests(['a', 'b', 'c'], runner_factory,
+                                      ['0', '1'])
+
+  def testReplicate(self):
+    results, exit_code = TestShard._RunShard(MockRunner)
+    # We expect 6 results since each test should have been run on every device
+    self.assertEqual(len(results.GetPass()), 6)
+    self.assertEqual(exit_code, 0)
+
+  def testFailing(self):
+    results, exit_code = TestShard._RunShard(MockRunnerFail)
+    self.assertEqual(len(results.GetPass()), 0)
+    self.assertEqual(len(results.GetFail()), 6)
+
+  def testNoTests(self):
+    results, exit_code = shard.ReplicateAndRunTests([], MockRunner, ['0', '1'])
+    self.assertEqual(len(results.GetAll()), 0)
+    self.assertEqual(exit_code, constants.ERROR_EXIT_CODE)
+
 
 if __name__ == '__main__':
   unittest.main()