Adding Winscope Launcher trace artifact (352c0035) · Commits · e / os / android_packages_apps_Trebuchet

tests/src/com/android/launcher3/util/rule/FailureWatcher.java

+20 −0

Original line number	Diff line number	Diff line
		@@ -2,6 +2,7 @@ package com.android.launcher3.util.rule;

		import static androidx.test.InstrumentationRegistry.getInstrumentation;

		import android.content.Context;
		import android.os.FileUtils;
		import android.os.ParcelFileDescriptor.AutoCloseInputStream;
		import android.util.Log;
		@@ -45,11 +46,30 @@ public class FailureWatcher extends TestWatcher {
		return new Statement() {
		@Override
		public void evaluate() throws Throwable {
		boolean success = false;
		try {
		Log.d("b/196820244", "Before evaluate");
		mDevice.executeShellCommand("cmd statusbar tracing start");
		FailureWatcher.super.apply(base, description).evaluate();
		Log.d("b/196820244", "After evaluate");
		success = true;
		} finally {
		// Save artifact for Launcher Winscope trace.
		mDevice.executeShellCommand("cmd statusbar tracing stop");
		final Context nexusLauncherContext =
		getInstrumentation().getTargetContext()
		.createPackageContext("com.google.android.apps.nexuslauncher",
		0);
		final File launcherTrace =
		new File(nexusLauncherContext.getFilesDir(), "launcher_trace.pb");
		if (success) {
		mDevice.executeShellCommand("rm " + launcherTrace);
		} else {
		mDevice.executeShellCommand("mv " + launcherTrace + " "
		+ diagFile(description, "LauncherWinscope", "pb"));
		}

		// Detect touch events coming from physical screen.
		if (mLauncher.hadNontestEvents()) {
		throw new AssertionError(
		"Launcher received events not sent by the test. This may mean "