[Telemetry] Android power moniotrs extend SysfsPowerMonitor.

tools/telemetry/telemetry/core/platform/android_sysfs_platform_unittest.py

Index: tools/telemetry/telemetry/core/platform/android_sysfs_platform_unittest.py
diff --git a/tools/telemetry/telemetry/core/platform/android_sysfs_platform_unittest.py b/tools/telemetry/telemetry/core/platform/android_sysfs_platform_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..06dccf86b41420aa78ee4e54c4a0fa81eab1f01e
--- /dev/null
+++ b/tools/telemetry/telemetry/core/platform/android_sysfs_platform_unittest.py
@@ -0,0 +1,33 @@
+# Copyright 2014 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
+
+from telemetry.core.platform import android_sysfs_platform
+
+
+class AndroidSysfsPlatformTest(unittest.TestCase):
+  cstate = {
+    'cpu0': 'C0\nC1\n103203424\n5342040\n300\n500\n1403232500',
+    'cpu1': 'C0\n124361858\n300\n1403232500'
+  }
+  expected_cstate = {
+    'cpu0': {
+      'WFI': 103203424,
+      'C0': 1403232391454536,
+      'C1': 5342040
+    },
+    'cpu1': {
+      'WFI': 124361858,
+      'C0': 1403232375638142
+    }
+  }
+  def testAndroidParseCpuStates(self):
+    # Use mock start and end times to allow for the test to calculate C0.
+    results = android_sysfs_platform.AndroidSysfsPlatform.ParseStateSample(
+        self.cstate)
+    for cpu in results:
+      for state in results[cpu]:
+        self.assertAlmostEqual(results[cpu][state],
+                               self.expected_cstate[cpu][state])