Added test that SurfaceFlinger metrics are calculated on android

tools/telemetry/telemetry/timeline/trace_data_unittest.py

Index: tools/telemetry/telemetry/timeline/trace_data_unittest.py
diff --git a/tools/telemetry/telemetry/timeline/trace_data_unittest.py b/tools/telemetry/telemetry/timeline/trace_data_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..c578b6f07eb6c0477b33c1f7af291fbb11425aeb
--- /dev/null
+++ b/tools/telemetry/telemetry/timeline/trace_data_unittest.py
@@ -0,0 +1,80 @@
+# 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 cStringIO
+import json
+import logging
+import unittest
+
+from telemetry.core import util
+from telemetry.timeline import trace_data
+
+class TraceDataTest(unittest.TestCase):
+  def testSerialize(self):
+    ri = trace_data.TraceData({'traceEvents': [1,2,3]})
+    f = cStringIO.StringIO()
+    ri.Serialize(f)
+    d = f.getvalue()
+
+    self.assertIn('traceEvents', d)
+    self.assertIn('[1, 2, 3]', d)
+
+    json.loads(d)
+
+  def testValidateWithNonPrimativeRaises(self):
+    with self.assertRaises(trace_data.NonSerializableTraceData):
+      trace_data.TraceData({'hello': TraceDataTest})
+
+  def testValidateWithCircularReferenceRaises(self):
+    a = []
+    d = {'foo': a}
+    a.append(d)
+    with self.assertRaises(trace_data.NonSerializableTraceData):
+      trace_data.TraceData(d)
+
+  def testEmptyArrayValue(self):
+    # We can import empty lists and empty string.
+    d = trace_data.TraceData([])
+    self.assertFalse(d.HasEventsFor(trace_data.CHROME_TRACE_PART))
+
+  def testEmptyStringValue(self):
+    d = trace_data.TraceData('')
+    self.assertFalse(d.HasEventsFor(trace_data.CHROME_TRACE_PART))
+
+  def testListForm(self):
+    d = trace_data.TraceData([{'ph': 'B'}])
+    self.assertTrue(d.HasEventsFor(trace_data.CHROME_TRACE_PART))
+    self.assertEquals(1, len(d.GetEventsFor(trace_data.CHROME_TRACE_PART)))
+
+  def testStringForm(self):
+    d = trace_data.TraceData('[{"ph": "B"}]')
+    self.assertTrue(d.HasEventsFor(trace_data.CHROME_TRACE_PART))
+    self.assertEquals(1, len(d.GetEventsFor(trace_data.CHROME_TRACE_PART)))
+
+  def testStringForm2(self):
+    d = trace_data.TraceData('{"inspectorTimelineEvents": [1]}')
+    self.assertTrue(d.HasEventsFor(trace_data.INSPECTOR_TRACE_PART))
+    self.assertEquals(1, len(d.GetEventsFor(trace_data.INSPECTOR_TRACE_PART)))
+
+  def testCorrectlyMalformedStringForm(self):
+    d = trace_data.TraceData("""[
+      {"ph": "B"}""")
+    self.assertTrue(d.HasEventsFor(trace_data.CHROME_TRACE_PART))
+
+  def testCorrectlyMalformedStringForm2(self):
+    d = trace_data.TraceData("""[
+      {"ph": "B"},""")
+    self.assertTrue(d.HasEventsFor(trace_data.CHROME_TRACE_PART))
+
+class TraceDataBuilderTest(unittest.TestCase):
+  def testBasicChrome(self):
+    builder = trace_data.TraceDataBuilder()
+    builder.AddEventsTo(trace_data.CHROME_TRACE_PART, [1,2,3])
+    builder.AddEventsTo(trace_data.TAB_ID_PART, ['tab-7'])
+
+    d = builder.AsData()
+    self.assertTrue(d.HasEventsFor(trace_data.CHROME_TRACE_PART))
+    self.assertTrue(d.HasEventsFor(trace_data.TAB_ID_PART))
+
+    self.assertRaises(Exception, builder.AsData)