1 files changed, 92 insertions, 0 deletions
diff --git a/apct-tests/perftests/graphics/src/android/graphics/perftests/PaintMeasureTextTest.java b/apct-tests/perftests/graphics/src/android/graphics/perftests/PaintMeasureTextTest.java
new file mode 100644
index 000000000000..b81908c34263
--- /dev/null
+++ b/apct-tests/perftests/graphics/src/android/graphics/perftests/PaintMeasureTextTest.java
@@ -0,0 +1,92 @@
+/*
+ * 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.graphics.perftests;
+
+import android.graphics.Canvas;
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.support.test.filters.LargeTest;
+import android.text.TextPaint;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+@LargeTest
+@RunWith(Parameterized.class)
+public class PaintMeasureTextTest {
+
+    private static final int USE_CACHE = 0;
+    private static final int DONT_USE_CACHE = 1;
+
+    @Parameterized.Parameters(name = "{0}")
+    public static Collection measureSpecs() {
+        return Arrays.asList(new Object[][] {
+                { "alphabet_cached", USE_CACHE, "a" },
+                { "alphabet_not_cached", DONT_USE_CACHE, "a" },
+                // U+4E80 is an ideograph.
+                { "ideograph_cached", USE_CACHE, "\u4E80" },
+                { "ideograph_not_cached", DONT_USE_CACHE, "\u4E80" },
+                // U+20B9F(\uD842\uDF9F) is an ideograph.
+                { "surrogate_pairs_cached", USE_CACHE, "\uD842\uDF9F" },
+                { "surrogate_pairs_not_cached", DONT_USE_CACHE, "\uD842\uDF9F" },
+                // U+303D is PART ALTERNATION MARK
+                { "emoji_cached", USE_CACHE, "\u231A" },
+                { "emoji_not_cached", DONT_USE_CACHE, "\u231A" },
+                // U+1F368(\uD83C\uDF68) is ICE CREAM
+                { "emoji_surrogate_pairs_cached", USE_CACHE, "\uD83C\uDF68" },
+                { "emoji_surrogate_pairs_not_cached", DONT_USE_CACHE, "\uD83C\uDF68" },
+        });
+    }
+
+    private final String mText;
+    private final int mCacheMode;
+
+    public PaintMeasureTextTest(String key, int cacheMode, String text) {
+        mText = text;
+        mCacheMode = cacheMode;
+    }
+
+    @Rule
+    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    @Test
+    public void testMeasureTextPerf() {
+        TextPaint paint = new TextPaint();
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+
+        if (mCacheMode == USE_CACHE) {
+            paint.measureText(mText);
+        } else {
+            Canvas.freeTextLayoutCaches();
+        }
+
+        while (state.keepRunning()) {
+            state.pauseTiming();
+            if (mCacheMode == DONT_USE_CACHE) {
+                Canvas.freeTextLayoutCaches();
+            }
+            state.resumeTiming();
+
+            paint.measureText(mText);
+        }
+    }
+}