Add dependency_manager initialization to binary_manager

tools/telemetry/telemetry/internal/util/binary_manager_unittest.py

Index: tools/telemetry/telemetry/internal/util/binary_manager_unittest.py
diff --git a/tools/telemetry/telemetry/internal/util/binary_manager_unittest.py b/tools/telemetry/telemetry/internal/util/binary_manager_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..a49125ec3a7cd6bfabd9413a71e652e0432c5b3d
--- /dev/null
+++ b/tools/telemetry/telemetry/internal/util/binary_manager_unittest.py
@@ -0,0 +1,77 @@
+# 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 os
+import unittest
+
+from telemetry.core import exceptions
+from telemetry.internal.util import binary_manager
+from telemetry.third_party import mock
+
+
+class BinaryManagerTest(unittest.TestCase):
+  def setUp(self):
+    # We need to preserve the real initialized dependecny_manager.
+    self.actual_dep_manager = binary_manager._dependency_manager
+    binary_manager._dependency_manager = None
+
+    # Mock out the dependency manager and support binaries module so we're only
+    # testing the binary_manager itself.
+    self.actual_dep_manager_module = binary_manager.dependency_manager
+    self.actual_support_binaries_module = binary_manager.support_binaries
+    self.manager = mock.MagicMock()
+    binary_manager.dependency_manager = self.manager.dependency_manager
+    binary_manager.support_binaries = self.manager.support_binaries
+
+  def tearDown(self):
+    binary_manager._dependency_manager = self.actual_dep_manager
+    binary_manager.dependency_manager = self.actual_dep_manager_module
+    binary_manager.support_binaries = self.actual_support_binaries_module
+
+  def testInitializationNoEnvironmentConfig(self):
+    expected = [mock.call.dependency_manager.DependencyManager(
+        [binary_manager.TELEMETRY_PROJECT_CONFIG])]
+    binary_manager.InitDependencyManager(None)
+    self.assertEqual(self.manager.mock_calls, expected)
+
+  def testInitializationWithEnvironmentConfig(self):
+    environment_config = os.path.join('some', 'config', 'path')
+    expected = [mock.call.dependency_manager.DependencyManager(
+        [binary_manager.TELEMETRY_PROJECT_CONFIG, environment_config])]
+    binary_manager.InitDependencyManager(environment_config)
+    self.assertEqual(self.manager.mock_calls, expected)
+
+  def testReinitialization(self):
+    binary_manager.InitDependencyManager(None)
+    self.assertRaises(exceptions.InitializationError,
+                      binary_manager.InitDependencyManager, None)
+
+  def testFetchPathInitialized(self):
+    expected = [mock.call.dependency_manager.DependencyManager(
+                   [binary_manager.TELEMETRY_PROJECT_CONFIG]),
+                mock.call.support_binaries.FindPath('dep', 'plat', 'arch')]
+    binary_manager.InitDependencyManager(None)
+    binary_manager.FetchPath('dep', 'plat', 'arch')
+    self.assertEqual(self.manager.mock_calls, expected)
+    #TODO(aiolos): We should be switching over to using the dependency_manager
+    #insead of the support binaries, and update the tests at that time.
+
+  def testFetchPathUninitialized(self):
+    self.assertRaises(exceptions.InitializationError,
+                      binary_manager.FetchPath, 'dep', 'plat', 'arch')
+
+  def testLocalPathInitialized(self):
+    expected = [mock.call.dependency_manager.DependencyManager(
+                   [binary_manager.TELEMETRY_PROJECT_CONFIG]),
+                mock.call.support_binaries.FindLocallyBuiltPath('dep')]
+    binary_manager.InitDependencyManager(None)
+    binary_manager.LocalPath('dep', 'plat', 'arch')
+    self.assertEqual(self.manager.mock_calls, expected)
+    #TODO(aiolos): We should be switching over to using the dependency_manager
+    #insead of the support binaries, and update the tests at that time.
+
+  def testLocalPathUninitialized(self):
+    self.assertRaises(exceptions.InitializationError,
+                      binary_manager.LocalPath, 'dep', 'plat', 'arch')
+