Add test for action_runner.BeginInteraction and action_runner.EndInteraction.

BUG=368767

Review URL: https://codereview.chromium.org/294943006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272549 0039d316-1c4b-4281-b951-d872f2087c98

tools/telemetry/telemetry/page/actions/action_runner_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.
+from telemetry.core.backends.chrome import tracing_backend
+from telemetry.core.timeline import model
+from telemetry.page.actions import action_runner as action_runner_module
+from telemetry.unittest import tab_test_case
+from telemetry.web_perf import timeline_interaction_record as tir_module
+
+
+class ActionRunnerTest(tab_test_case.TabTestCase):
+  def testIssuingInteractionRecord(self):
+    self.Navigate('blank.html')
+    action_runner = action_runner_module.ActionRunner(None, self._tab)
+    self._browser.StartTracing(tracing_backend.MINIMAL_TRACE_CATEGORIES)
+    action_runner.BeginInteraction('TestInteraction', [tir_module.IS_SMOOTH])
+    action_runner.EndInteraction('TestInteraction', [tir_module.IS_SMOOTH])
+    trace_data = self._browser.StopTracing()
+    timeline_model = model.TimelineModel(trace_data)
+
+    records = []
+    renderer_thread = timeline_model.GetRendererThreadFromTab(self._tab)
+    for event in renderer_thread.async_slices:
+      if not tir_module.IsTimelineInteractionRecord(event.name):
+        continue
+      records.append(tir_module.TimelineInteractionRecord.FromEvent(event))
+    self.assertEqual(1, len(records),
+                     'Fail to issue the interaction record on tracing timeline.'
+                     ' Trace data:\n%s' % repr(trace_data.EventData()))
+    self.assertEqual('TestInteraction', records[0].logical_name)
+    self.assertTrue(records[0].is_smooth)