Merge "Edit long text performance test."
diff --git a/apct-tests/perftests/core/src/android/widget/EditTextLongTextPerfTest.java b/apct-tests/perftests/core/src/android/widget/EditTextLongTextPerfTest.java
new file mode 100644
index 0000000..13a5e83
--- /dev/null
+++ b/apct-tests/perftests/core/src/android/widget/EditTextLongTextPerfTest.java
@@ -0,0 +1,125 @@
+/*
+ * 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.widget;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Locale;
+import java.util.Random;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+import android.app.Activity;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.RenderNodeAnimator;
+import android.view.ViewGroup;
+import android.view.View.MeasureSpec;
+
+import android.perftests.utils.BenchmarkState;
+import android.perftests.utils.PerfStatusReporter;
+import android.perftests.utils.StubActivity;
+import android.support.test.filters.LargeTest;
+import android.support.test.runner.AndroidJUnit4;
+import android.support.test.annotation.UiThreadTest;
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.InstrumentationRegistry;
+
+@LargeTest
+@RunWith(Parameterized.class)
+public class EditTextLongTextPerfTest {
+    @Parameters(name = "{0}")
+    public static Collection cases() {
+        return Arrays.asList(new Object[][] {
+            { "10x30K", 10, 30000 },
+            { "300x1K", 300, 1000 },
+        });
+    }
+
+    private final String mMetricKey;
+    private final int mChars;
+    private final int mLines;
+
+    public EditTextLongTextPerfTest(String metricKey, int chars, int lines) {
+        mMetricKey = metricKey;
+        mChars = chars;
+        mLines = lines;
+    }
+
+    @Rule
+    public ActivityTestRule<StubActivity> mActivityRule = new ActivityTestRule(StubActivity.class);
+
+    @Rule
+    public PerfStatusReporter mPerfStatusReporter = new PerfStatusReporter();
+
+    private EditText setupEditText() {
+        final EditText editText = new EditText(mActivityRule.getActivity());
+
+        String alphabet = "abcdefghijklmnopqrstuvwxyz";
+        final long seed = 1234567890;
+        Random r = new Random(seed);
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < mLines; i++) {
+            for (int j = 0; j < mChars; j++) {
+                char c = alphabet.charAt(r.nextInt(alphabet.length()));
+                sb.append(c);
+            }
+            sb.append('\n');
+        }
+
+        final int height = 1000;
+        final int width = 1000;
+        editText.setHeight(height);
+        editText.setWidth(width);
+        editText.setLayoutParams(new ViewGroup.LayoutParams(width, height));
+
+        Activity activity = mActivityRule.getActivity();
+        activity.setContentView(editText);
+
+        editText.setText(sb.toString(), TextView.BufferType.EDITABLE);
+        editText.invalidate();
+        editText.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY),
+                         MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
+        editText.layout(0, 0, height, width);
+
+        return editText;
+    }
+
+    @Test
+    @UiThreadTest
+    public void testEditText() {
+        BenchmarkState state = mPerfStatusReporter.getBenchmarkState();
+        final EditText editText = setupEditText();
+        final KeyEvent keyEvent = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER);
+        final int steps = 100;
+        while (state.keepRunning()) {
+            for (int i = 0; i < steps; i++) {
+                int offset = (editText.getText().length() * i) / steps;
+                editText.setSelection(offset);
+                editText.bringPointIntoView(offset);
+                editText.onKeyDown(keyEvent.getKeyCode(), keyEvent);
+                editText.updateDisplayListIfDirty();
+            }
+        }
+    }
+}