Fix testQuickSwitchFromApp

Instead of starting getAppPackageName() and relying on it being our Test
Pin Item activity, instead launch our own test activities with the
FLAG_ACTIVITY_MULTIPLE_TASK and FLAG_ACTIVITY_NEW_DOCUMENT flags.

Test:
- Locally run testQuickSwitchFromApp() from Android Studio
- flake -oop -t com.android.quickstep.TaplTestsQuickstep#testQuickSwitchFromApp

Bug: 140252765
Change-Id: Ie137261ce65bfd3dd39df78d57784854a026e967
Merged-In: Ie137261ce65bfd3dd39df78d57784854a026e967

1 files changed, 9 insertions, 10 deletions

diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index d270d762d..8cd3bb61b 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -248,33 +248,32 @@ public class TaplTestsQuickstep extends AbstractQuickStepTest {
     @Test
     @NavigationModeSwitch
     @PortraitLandscape
-    @Ignore("Temporarily disabled b/140252765")
     public void testQuickSwitchFromApp() throws Exception {
-        startAppFast(getAppPackageName());
         startTestActivity(2);
-        String calculatorPackage = resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR);
-        startAppFast(calculatorPackage);
+        startTestActivity(3);
+        startTestActivity(4);
 
         Background background = getAndAssertBackground();
         background.quickSwitchToPreviousApp();
         assertTrue("The first app we should have quick switched to is not running",
-                isTestActivityRunning("TestActivity2"));
+                isTestActivityRunning(3));
 
         background = getAndAssertBackground();
         background.quickSwitchToPreviousApp();
         if (mLauncher.getNavigationModel() == NavigationModel.THREE_BUTTON) {
             // 3-button mode toggles between 2 apps, rather than going back further.
             assertTrue("Second quick switch should have returned to the first app.",
-                    mDevice.wait(Until.hasObject(By.pkg(calculatorPackage)), DEFAULT_UI_TIMEOUT));
+                    isTestActivityRunning(4));
         } else {
             assertTrue("The second app we should have quick switched to is not running",
-                    isTestActivityRunning("Test Pin Item"));
+                    isTestActivityRunning(2));
         }
         getAndAssertBackground();
     }
 
-    private boolean isTestActivityRunning(String activityLabel) {
-        return mDevice.wait(Until.hasObject(By.pkg(getAppPackageName()).text(activityLabel)),
+    private boolean isTestActivityRunning(int activityNumber) {
+        return mDevice.wait(Until.hasObject(By.pkg(getAppPackageName())
+                        .text("TestActivity" + activityNumber)),
                 DEFAULT_UI_TIMEOUT);
     }
 
@@ -285,7 +284,7 @@ public class TaplTestsQuickstep extends AbstractQuickStepTest {
         startTestActivity(2);
         mLauncher.pressHome().quickSwitchToPreviousApp();
         assertTrue("The most recent task is not running after quick switching from home",
-                isTestActivityRunning("TestActivity2"));
+                isTestActivityRunning(2));
         getAndAssertBackground();
     }
 }