Adding Winscope Launcher trace artifact
Bug: 197991109
Test: local runs
Change-Id: I8fe718570e1400e97ea107bc25e169f39257ff43
diff --git a/tests/src/com/android/launcher3/util/rule/FailureWatcher.java b/tests/src/com/android/launcher3/util/rule/FailureWatcher.java
index f9a9997..65aaa24 100644
--- a/tests/src/com/android/launcher3/util/rule/FailureWatcher.java
+++ b/tests/src/com/android/launcher3/util/rule/FailureWatcher.java
@@ -2,6 +2,7 @@
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 @@
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 "