[telemetry] Implement first version of timeline based measurement

tools/perf/metrics/timeline_interaction_record_unittest.py

+# 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 metrics import timeline_interaction_record
+from telemetry.core.timeline import async_slice
+
+
+class ParseTests(unittest.TestCase):
+  def testParse(self):
+    self.assertTrue(timeline_interaction_record.IsTimelineInteractionRecord(
+        'Interaction.Foo'))
+    self.assertTrue(timeline_interaction_record.IsTimelineInteractionRecord(
+        'Interaction.Foo/Bar'))
+    self.assertFalse(timeline_interaction_record.IsTimelineInteractionRecord(
+        'SomethingRandom'))
+
+  def CreateRecord(self, event_name):
+    s = async_slice.AsyncSlice(
+      'cat', event_name,
+      timestamp=1, duration=2)
+    return timeline_interaction_record.TimelineInteractionRecord(s)
+
+  def testCreate(self):
+    r = self.CreateRecord('Interaction.LogicalName')
+    self.assertEquals('LogicalName', r.logical_name)
+    self.assertEquals(False, r.is_smooth)
+    self.assertEquals(False, r.is_loading_resources)
+
+    r = self.CreateRecord('Interaction.LogicalName/is_smooth')
+    self.assertEquals('LogicalName', r.logical_name)
+    self.assertEquals(True, r.is_smooth)
+    self.assertEquals(False, r.is_loading_resources)
+
+    r = self.CreateRecord('Interaction.LogicalNameWith/Slash/is_smooth')
+    self.assertEquals('LogicalNameWith/Slash', r.logical_name)
+    self.assertEquals(True, r.is_smooth)
+    self.assertEquals(False, r.is_loading_resources)
+
+    r = self.CreateRecord(
+        'Interaction.LogicalNameWith/Slash/is_smooth,is_loading_resources')
+    self.assertEquals('LogicalNameWith/Slash', r.logical_name)
+    self.assertEquals(True, r.is_smooth)
+    self.assertEquals(True, r.is_loading_resources)