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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 package org.chromium.content.browser;
      6 
      7 import static org.chromium.base.test.util.ScalableTimeout.scaleTimeout;
      8 
      9 import android.os.SystemClock;
     10 import android.test.suitebuilder.annotation.MediumTest;
     11 
     12 import org.chromium.base.ThreadUtils;
     13 import org.chromium.base.test.util.Feature;
     14 import org.chromium.content_shell_apk.ContentShellActivity;
     15 import org.chromium.content_shell_apk.ContentShellTestBase;
     16 
     17 import java.io.File;
     18 
     19 public class TracingControllerAndroidTest extends ContentShellTestBase {
     20 
     21     private static final long TIMEOUT_MILLIS = scaleTimeout(30 * 1000);
     22 
     23     @MediumTest
     24     @Feature({"GPU"})
     25     public void testTraceFileCreation() throws Exception {
     26         ContentShellActivity activity = launchContentShellWithUrl("about:blank");
     27         waitForActiveShellToBeDoneLoading();
     28 
     29         final TracingControllerAndroid tracingController = new TracingControllerAndroid(activity);
     30         assertFalse(tracingController.isTracing());
     31         assertNull(tracingController.getOutputPath());
     32 
     33         ThreadUtils.runOnUiThreadBlocking(new Runnable() {
     34             @Override
     35             public void run() {
     36                 assertTrue(tracingController.startTracing(
     37                     true, "*", "record-until-full"));
     38             }
     39         });
     40 
     41         assertTrue(tracingController.isTracing());
     42         File file = new File(tracingController.getOutputPath());
     43         assertTrue(file.getName().startsWith("chrome-profile-results"));
     44 
     45         ThreadUtils.runOnUiThreadBlocking(new Runnable() {
     46             @Override
     47             public void run() {
     48                 tracingController.stopTracing();
     49             }
     50         });
     51 
     52         // The tracer stops asynchronously, because it needs to wait for native code to flush and
     53         // close the output file. Give it a little time.
     54         long startTime = SystemClock.uptimeMillis();
     55         while (tracingController.isTracing()) {
     56             if (SystemClock.uptimeMillis() > startTime + TIMEOUT_MILLIS) {
     57                 fail("Timed out waiting for tracing to stop.");
     58             }
     59             Thread.sleep(1000);
     60         }
     61 
     62         // It says it stopped, so it should have written the output file.
     63         assertTrue(file.exists());
     64         assertTrue(file.delete());
     65         tracingController.destroy();
     66     }
     67 }
     68