Improved the testBookmarkRemainsSavedOrNot which sometimes fails on Android 15, and 16.

app/src/androidTest/java/org/kiwix/kiwixmobile/page/bookmarks/BookmarksRobot.kt

@@ -132,10 +132,12 @@ class BookmarksRobot : BaseRobot() {
 
   fun assertBookmarkSaved(composeTestRule: ComposeContentTestRule) {
     pauseForBetterTestPerformance()
+    testFlakyView({
       composeTestRule.apply {
         waitForIdle()
         onNodeWithText("Test Zim").assertExists()
       }
+    })
   }
 
   fun assertBookmarkRemoved(composeTestRule: ComposeTestRule) {

app/src/androidTest/java/org/kiwix/kiwixmobile/page/bookmarks/LibkiwixBookmarkTest.kt

@@ -18,11 +18,15 @@
 
 package org.kiwix.kiwixmobile.page.bookmarks
 
+import android.accessibilityservice.AccessibilityService
+import android.content.Context
+import android.content.Intent
 import androidx.compose.ui.test.junit4.createAndroidComposeRule
 import androidx.core.content.edit
 import androidx.core.net.toUri
 import androidx.navigation.NavOptions
 import androidx.preference.PreferenceManager
+import androidx.test.core.app.ApplicationProvider
 import androidx.test.espresso.accessibility.AccessibilityChecks
 import androidx.test.espresso.matcher.ViewMatchers.withContentDescription
 import androidx.test.platform.app.InstrumentationRegistry
@@ -128,8 +132,7 @@ class LibkiwixBookmarkTest : BaseActivityTest() {
           navOptions
         )
       }
-      waitForIdle()
+      waitComposeToSettleViews() // to load the ZIM file properly.
-      waitUntilTimeout() // to load the ZIM file properly.
     }
     bookmarks {
       // delete any bookmark if already saved to properly perform this test case.
@@ -139,42 +142,49 @@ class LibkiwixBookmarkTest : BaseActivityTest() {
       clickOnDeleteButton(composeTestRule)
       assertNoBookMarkTextDisplayed(composeTestRule)
       pressBack()
-      composeTestRule.apply {
+      waitComposeToSettleViews()
-        waitForIdle()
-        waitUntilTimeout()
-      }
       // Test saving bookmark
       clickOnSaveBookmarkImage(composeTestRule)
       openBookmarkScreen(kiwixMainActivity as CoreMainActivity, composeTestRule)
       assertBookmarkSaved(composeTestRule)
       pressBack()
       // Test removing bookmark
-      composeTestRule.apply {
+      waitComposeToSettleViews()
-        waitForIdle()
-        waitUntilTimeout()
-      }
       clickOnSaveBookmarkImage(composeTestRule)
       longClickOnSaveBookmarkImage(composeTestRule, TEST_PAUSE_MS_FOR_DOWNLOAD_TEST.toLong())
       assertBookmarkRemoved(composeTestRule)
       pressBack()
       // Save the bookmark to test whether it remains saved after the application restarts or not.
-      composeTestRule.apply {
+      waitComposeToSettleViews()
-        waitForIdle()
-        waitUntilTimeout()
-      }
       clickOnSaveBookmarkImage(composeTestRule)
-    }
+      waitComposeToSettleViews()
-  }
+      // Close the application.
-
+      InstrumentationRegistry.getInstrumentation().uiAutomation.performGlobalAction(
-  @Test
+        AccessibilityService.GLOBAL_ACTION_HOME
-  fun testBookmarkRemainsSavedOrNot() {
+      )
-    composeTestRule.waitForIdle()
+      // wait a bit
+      waitComposeToSettleViews()
+      // reopen the application to test that book remains saved or not.
+      val context = ApplicationProvider.getApplicationContext<Context>()
+      val intent = context.packageManager.getLaunchIntentForPackage(context.packageName)
+      intent?.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK)
+      context.startActivity(intent)
+      InstrumentationRegistry.getInstrumentation().waitForIdleSync()
+      waitComposeToSettleViews()
       topLevel {
         clickBookmarksOnNavDrawer(kiwixMainActivity as CoreMainActivity, composeTestRule) {
           assertBookmarkSaved(composeTestRule)
         }
       }
     }
+  }
+
+  private fun waitComposeToSettleViews() {
+    composeTestRule.apply {
+      waitForIdle()
+      waitUntilTimeout()
+    }
+  }
 
   @Test
   fun testSavedBookmarksShowingOnBookmarkScreen() {
@@ -201,7 +211,7 @@ class LibkiwixBookmarkTest : BaseActivityTest() {
       assertNoBookMarkTextDisplayed(composeTestRule)
       pressBack()
     }
-    composeTestRule.waitUntilTimeout()
+    waitComposeToSettleViews()
     val coreReaderFragment = kiwixMainActivity.supportFragmentManager.fragments
       .filterIsInstance<CoreReaderFragment>()
       .firstOrNull()