Fix sysmon unit tests

BUG=chromium:708293
TEST=Run tests

Change-Id: I07cfc2be4a073b85f2f6ac13d81210a6356fa8a5
Reviewed-on: https://chromium-review.googlesource.com/473487
Commit-Ready: Allen Li <ayatane@chromium.org>
Tested-by: Allen Li <ayatane@chromium.org>
Reviewed-by: Paul Hobbs <phobbs@google.com>
diff --git a/scripts/sysmon/git_metrics_unittest.py b/scripts/sysmon/git_metrics_unittest.py
index c042360..3917fe9 100644
--- a/scripts/sysmon/git_metrics_unittest.py
+++ b/scripts/sysmon/git_metrics_unittest.py
@@ -43,7 +43,7 @@
     collector = git_metrics._GitMetricCollector(self.git_dir, '/foo/bar')
 
     # This has the side-effect of checking the types are correct.
-    collector._collect_commit_time_metric()
+    collector._collect_timestamp_metric()
 
   def testCollectGitHashCallsSet(self):
     collector = git_metrics._GitMetricCollector(self.git_dir, '/foo/bar')
@@ -61,11 +61,11 @@
   def testCollectGitTimeCallsSet(self):
     collector = git_metrics._GitMetricCollector(self.git_dir, '/foo/bar')
     with mock.patch.object(git_metrics._GitMetricCollector,
-                           '_commit_time_metric',
+                           '_timestamp_metric',
                            autospec=True) as time_metric:
-      collector._collect_commit_time_metric()
+      collector._collect_timestamp_metric()
 
-    commit_time = self.git_repo.get_commit_time()
+    timestamp = self.git_repo.get_commit_time()
     self.assertEqual(time_metric.set.call_args_list, [
-        mock.call(commit_time, {'repo': self.git_dir})
+        mock.call(timestamp, {'repo': self.git_dir})
     ])