[fenix] Move verifyRecentlyClosedTabsListTest UI test from SmokeTest class

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

@@ -38,6 +38,7 @@ class HistoryTest {
     /* ktlint-disable no-blank-line-before-rbrace */ // This imposes unreadable grouping.
     private lateinit var mockWebServer: MockWebServer
     private var historyListIdlingResource: RecyclerViewIdlingResource? = null
+    private var recentlyClosedTabsListIdlingResource: RecyclerViewIdlingResource? = null
 
     @get:Rule
     val activityTestRule = HomeActivityTestRule()
@@ -67,6 +68,10 @@ class HistoryTest {
         if (historyListIdlingResource != null) {
             IdlingRegistry.getInstance().unregister(historyListIdlingResource!!)
         }
+
+        if (recentlyClosedTabsListIdlingResource != null) {
+            IdlingRegistry.getInstance().unregister(recentlyClosedTabsListIdlingResource!!)
+        }
     }
 
     @Test
@@ -283,4 +288,28 @@ class HistoryTest {
             verifyShareTabUrl()
         }
     }
+
+    @Test
+    // This test verifies the Recently Closed Tabs List and items
+    fun verifyRecentlyClosedTabsListTest() {
+        val website = TestAssetHelper.getGenericAsset(mockWebServer, 1)
+
+        homeScreen {
+        }.openNavigationToolbar {
+        }.enterURLAndEnterToBrowser(website.url) {
+            mDevice.waitForIdle()
+        }.openTabDrawer {
+            closeTab()
+        }.openTabDrawer {
+        }.openRecentlyClosedTabs {
+            waitForListToExist()
+            recentlyClosedTabsListIdlingResource =
+                RecyclerViewIdlingResource(activityTestRule.activity.findViewById(R.id.recently_closed_list), 1)
+            IdlingRegistry.getInstance().register(recentlyClosedTabsListIdlingResource!!)
+            verifyRecentlyClosedTabsMenuView()
+            IdlingRegistry.getInstance().unregister(recentlyClosedTabsListIdlingResource!!)
+            verifyRecentlyClosedTabsPageTitle("Test_Page_1")
+            verifyRecentlyClosedTabsUrl(website.url)
+        }
+    }
 }

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

@@ -680,30 +680,6 @@ class SmokeTest {
         }
     }
 
-    @Test
-    // This test verifies the Recently Closed Tabs List and items
-    fun verifyRecentlyClosedTabsListTest() {
-        val website = TestAssetHelper.getGenericAsset(mockWebServer, 1)
-
-        homeScreen {
-        }.openNavigationToolbar {
-        }.enterURLAndEnterToBrowser(website.url) {
-            mDevice.waitForIdle()
-        }.openTabDrawer {
-            closeTab()
-        }.openTabDrawer {
-        }.openRecentlyClosedTabs {
-            waitForListToExist()
-            recentlyClosedTabsListIdlingResource =
-                RecyclerViewIdlingResource(activityTestRule.activity.findViewById(R.id.recently_closed_list), 1)
-            IdlingRegistry.getInstance().register(recentlyClosedTabsListIdlingResource!!)
-            verifyRecentlyClosedTabsMenuView()
-            IdlingRegistry.getInstance().unregister(recentlyClosedTabsListIdlingResource!!)
-            verifyRecentlyClosedTabsPageTitle("Test_Page_1")
-            verifyRecentlyClosedTabsUrl(website.url)
-        }
-    }
-
     @Test
     // Verifies the Open in a new tab option from the Recently Closed Tabs overflow menu
     fun openRecentlyClosedTabsInNewTabTest() {