From de321b9cc15e9ef3eb20603bb6f77c6ef2dee67d Mon Sep 17 00:00:00 2001
From: liyuqian <liyuqian@google.com>
Date: Mon, 4 Feb 2019 22:54:11 -0800
Subject: [PATCH] Add scroll performance test for flutter_gallery (#27513)

Previously, we had a scroll_perf drive test but we were not exercising
it on our device lab. This helps us tracking issues like:
https://github.com/flutter/flutter/issues/24782
---
 .../tasks/home_scroll_perf__timeline_summary.dart  | 14 ++++++++++++++
 dev/devicelab/lib/tasks/perf_tests.dart            |  8 ++++++++
 dev/devicelab/manifest.yaml                        |  8 ++++++++
 3 files changed, 30 insertions(+)
 create mode 100644 dev/devicelab/bin/tasks/home_scroll_perf__timeline_summary.dart

diff --git a/dev/devicelab/bin/tasks/home_scroll_perf__timeline_summary.dart b/dev/devicelab/bin/tasks/home_scroll_perf__timeline_summary.dart
new file mode 100644
index 00000000000..7c998846b8f
--- /dev/null
+++ b/dev/devicelab/bin/tasks/home_scroll_perf__timeline_summary.dart
@@ -0,0 +1,14 @@
+// Copyright 2016 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 'dart:async';
+
+import 'package:flutter_devicelab/tasks/perf_tests.dart';
+import 'package:flutter_devicelab/framework/adb.dart';
+import 'package:flutter_devicelab/framework/framework.dart';
+
+Future<void> main() async {
+  deviceOperatingSystem = DeviceOperatingSystem.android;
+  await task(createHomeScrollPerfTest());
+}
diff --git a/dev/devicelab/lib/tasks/perf_tests.dart b/dev/devicelab/lib/tasks/perf_tests.dart
index ffce8bb343c..2132132fb5c 100644
--- a/dev/devicelab/lib/tasks/perf_tests.dart
+++ b/dev/devicelab/lib/tasks/perf_tests.dart
@@ -30,6 +30,14 @@ TaskFunction createTilesScrollPerfTest() {
   ).run;
 }
 
+TaskFunction createHomeScrollPerfTest() {
+  return PerfTest(
+    '${flutterDirectory.path}/examples/flutter_gallery',
+    'test_driver/scroll_perf.dart',
+    'home_scroll_perf',
+  ).run;
+}
+
 TaskFunction createCullOpacityPerfTest() {
   return PerfTest(
     '${flutterDirectory.path}/dev/benchmarks/macrobenchmarks',
diff --git a/dev/devicelab/manifest.yaml b/dev/devicelab/manifest.yaml
index 2b561867077..861d0637a98 100644
--- a/dev/devicelab/manifest.yaml
+++ b/dev/devicelab/manifest.yaml
@@ -112,6 +112,14 @@ tasks:
     stage: devicelab
     required_agent_capabilities: ["mac/android"]
 
+  home_scroll_perf__timeline_summary:
+    description: >
+      Measures the runtime performance of scrolling the material page in the
+      flutter_gallery app on Android.
+    stage: devicelab
+    required_agent_capabilities: ["mac/android"]
+    flaky: true
+
   cull_opacity_perf__timeline_summary:
     description: >
       Measures the runtime performance of culling opacity widgets on Android.