Add layout perf test into APCT

Change-Id: I32971176cdf60e8848180f2c923ca2f88fc19e4d

2 files changed, 67 insertions, 4 deletions

diff --git a/apct-tests/perftests/utils/src/android/perftests/utils/BenchmarkState.java b/apct-tests/perftests/utils/src/android/perftests/utils/BenchmarkState.java
index 8e1674abae08..80ffbd5eaa60 100644
--- a/apct-tests/perftests/utils/src/android/perftests/utils/BenchmarkState.java
+++ b/apct-tests/perftests/utils/src/android/perftests/utils/BenchmarkState.java
@@ -145,10 +145,15 @@ public class BenchmarkState {
     private String summaryLine() {
         StringBuilder sb = new StringBuilder();
         sb.append("Summary: ");
-        sb.append("median=" + median() + "ns, ");
-        sb.append("mean=" + mean() + "ns, ");
-        sb.append("sigma=" + standardDeviation() + ", ");
-        sb.append("iteration=" + mResults.size());
+        sb.append("median=").append(median()).append("ns, ");
+        sb.append("mean=").append(mean()).append("ns, ");
+        sb.append("sigma=").append(standardDeviation()).append(", ");
+        sb.append("iteration=").append(mResults.size()).append(", ");
+        // print out the first few iterations' number for double checking.
+        int sampleNumber = Math.min(mResults.size(), MIN_REPEAT_TIMES);
+        for (int i = 0; i < sampleNumber; i++) {
+            sb.append("No ").append(i).append(" result is ").append(mResults.get(i)).append(", ");
+        }
         return sb.toString();
     }
 
diff --git a/apct-tests/perftests/utils/src/android/perftests/utils/LayoutUtils.java b/apct-tests/perftests/utils/src/android/perftests/utils/LayoutUtils.java
new file mode 100644
index 000000000000..c64af8fccb36
--- /dev/null
+++ b/apct-tests/perftests/utils/src/android/perftests/utils/LayoutUtils.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.perftests.utils;
+
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class LayoutUtils {
+
+    private static void recursivelyGather(ViewGroup currentNode, List<View> nodeList) {
+        nodeList.add(currentNode);
+        int count = currentNode.getChildCount();
+        for (int i = 0; i < count; i++) {
+            View view = currentNode.getChildAt(i);
+            if (view instanceof ViewGroup) {
+                recursivelyGather((ViewGroup) view, nodeList);
+            } else {
+                nodeList.add(view);
+            }
+        }
+    }
+
+    /**
+     * Flattern the whole view tree into a list of View.
+     */
+    public static List<View> gatherViewTree(ViewGroup root) {
+        List<View> result = new ArrayList<View>();
+        recursivelyGather(root, result);
+        return result;
+    }
+
+    /**
+     * For every node in the list, call requestLayout.
+     */
+    public static void requestLayoutForAllNodes(List<View> nodeList) {
+        int count = nodeList.size();
+        for (int i = 0; i < count; i++) {
+            nodeList.get(i).requestLayout();
+        }
+    }
+}