[fenix] For https://github.com/mozilla-mobile/fenix/issues/21133 fix openMainMenuSyncItemTest UI test

app/src/androidTest/java/org/mozilla/fenix/ui/SmokeTest.kt

@@ -274,9 +274,10 @@ class SmokeTest {
 
         navigationToolbar {
         }.enterURLAndEnterToBrowser(defaultWebPage.url) {
+            mDevice.waitForIdle()
         }.openThreeDotMenu {
         }.openSyncSignIn {
-            verifySyncSignInMenuHeader()
+            verifyTurnOnSyncMenu()
         }
     }
 

app/src/androidTest/java/org/mozilla/fenix/ui/robots/SyncSignInRobot.kt

@@ -6,14 +6,18 @@ package org.mozilla.fenix.ui.robots
 
 import androidx.test.espresso.Espresso.onView
 import androidx.test.espresso.assertion.ViewAssertions.matches
+import androidx.test.espresso.matcher.ViewMatchers.Visibility
 import androidx.test.espresso.matcher.ViewMatchers.withContentDescription
 import androidx.test.espresso.matcher.ViewMatchers.withEffectiveVisibility
 import androidx.test.espresso.matcher.ViewMatchers.withText
-import androidx.test.espresso.matcher.ViewMatchers.Visibility
 import androidx.test.platform.app.InstrumentationRegistry
 import androidx.test.uiautomator.UiDevice
+import androidx.test.uiautomator.UiSelector
 import org.hamcrest.CoreMatchers.allOf
+import org.junit.Assert.assertTrue
 import org.mozilla.fenix.R
+import org.mozilla.fenix.helpers.TestAssetHelper.waitingTime
+import org.mozilla.fenix.helpers.TestHelper.packageName
 import org.mozilla.fenix.helpers.click
 
 /**
@@ -22,7 +26,7 @@ import org.mozilla.fenix.helpers.click
 class SyncSignInRobot {
 
     fun verifyAccountSettingsMenuHeader() = assertAccountSettingsMenuHeader()
-    fun verifySyncSignInMenuHeader() = assertSyncSignInMenuHeader()
+    fun verifyTurnOnSyncMenu() = assertTurnOnSyncMenu()
 
     class Transition {
         val mDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())!!
@@ -46,7 +50,13 @@ private fun assertAccountSettingsMenuHeader() {
         .check((matches(withEffectiveVisibility(Visibility.VISIBLE))))
 }
 
-private fun assertSyncSignInMenuHeader() {
-    onView(withText(R.string.sign_in_with_camera))
-        .check((matches(withEffectiveVisibility(Visibility.VISIBLE))))
+private fun assertTurnOnSyncMenu() {
+    mDevice.findObject(UiSelector().resourceId("$packageName:id/container")).waitForExists(waitingTime)
+    assertTrue(
+        mDevice.findObject(
+            UiSelector()
+                .resourceId("$packageName:id/signInScanButton")
+                .resourceId("$packageName:id/signInEmailButton")
+        ).waitForExists(waitingTime)
+    )
 }