Add back waitForStateTransitionToEnd to fix flakiness.

Bug: 202735477
Test: presubmit
Change-Id: I03c7e8b0c40177f4e6e38a7d9aa3e01b029effd6
diff --git a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
index 314aee4..44f2719 100644
--- a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
+++ b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
@@ -352,6 +352,14 @@
                 launcher -> launcher.getStateManager().getCurrentStableState() == state.get());
     }
 
+    // Cannot be used in TaplTests between a Tapl call injecting a gesture and a tapl call
+    // expecting the results of that gesture because the wait can hide flakeness.
+    protected void waitForStateTransitionToEnd(String message, Supplier<LauncherState> state) {
+        waitForLauncherCondition(message,
+                launcher -> launcher.getStateManager().isInStableState(state.get())
+                        && !launcher.getStateManager().isInTransition());
+    }
+
     protected void waitForResumed(String message) {
         waitForLauncherCondition(message, launcher -> launcher.hasBeenResumed());
     }
diff --git a/tests/src/com/android/launcher3/ui/WorkProfileTest.java b/tests/src/com/android/launcher3/ui/WorkProfileTest.java
index 4bb6e91..45d20e2 100644
--- a/tests/src/com/android/launcher3/ui/WorkProfileTest.java
+++ b/tests/src/com/android/launcher3/ui/WorkProfileTest.java
@@ -62,10 +62,12 @@
 
         mDevice.pressHome();
         waitForLauncherCondition("Launcher didn't start", Objects::nonNull);
-        waitForState("Launcher internal state didn't switch to Normal", () -> NORMAL);
+        waitForStateTransitionToEnd("Launcher internal state didn't switch to Normal",
+                () -> NORMAL);
         waitForResumed("Launcher internal state is still Background");
         executeOnLauncher(launcher -> launcher.getStateManager().goToState(ALL_APPS));
-        waitForState("Launcher internal state didn't switch to All Apps", () -> ALL_APPS);
+        waitForStateTransitionToEnd("Launcher internal state didn't switch to All Apps",
+                () -> ALL_APPS);
     }
 
     @After