diff --git a/tests/tapl/com/android/launcher3/tapl/AllAppsQsb.java b/tests/tapl/com/android/launcher3/tapl/AllAppsQsb.java
deleted file mode 100644
index 0931cd4..0000000
--- a/tests/tapl/com/android/launcher3/tapl/AllAppsQsb.java
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2022 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.launcher3.tapl;
-
-import androidx.test.uiautomator.UiObject2;
-
-/**
- * Operations on AllApp screen qsb.
- */
-class AllAppsQsb extends Qsb {
-
-    private final UiObject2 mAllAppsContainer;
-
-    AllAppsQsb(LauncherInstrumentation launcher, UiObject2 allAppsContainer) {
-        super(launcher);
-        mAllAppsContainer = allAppsContainer;
-        waitForQsbObject();
-    }
-
-    @Override
-    protected UiObject2 waitForQsbObject() {
-        return mLauncher.waitForObjectInContainer(mAllAppsContainer, "search_container_all_apps");
-    }
-}
diff --git a/tests/tapl/com/android/launcher3/tapl/HomeAllApps.java b/tests/tapl/com/android/launcher3/tapl/HomeAllApps.java
index ea6fd3b..9a4c6d4 100644
--- a/tests/tapl/com/android/launcher3/tapl/HomeAllApps.java
+++ b/tests/tapl/com/android/launcher3/tapl/HomeAllApps.java
@@ -73,13 +73,4 @@
             }
         }
     }
-
-    /**
-     * Return the QSB UI object on the AllApps screen.
-     * @return the QSB UI object.
-     */
-    @NonNull
-    public Qsb getQsb() {
-        return new AllAppsQsb(mLauncher, verifyActiveContainer());
-    }
 }
diff --git a/tests/tapl/com/android/launcher3/tapl/HomeQsb.java b/tests/tapl/com/android/launcher3/tapl/HomeQsb.java
index 20d09a1..c365708 100644
--- a/tests/tapl/com/android/launcher3/tapl/HomeQsb.java
+++ b/tests/tapl/com/android/launcher3/tapl/HomeQsb.java
@@ -15,23 +15,69 @@
  */
 package com.android.launcher3.tapl;
 
+import androidx.annotation.NonNull;
+import androidx.test.uiautomator.By;
+import androidx.test.uiautomator.BySelector;
 import androidx.test.uiautomator.UiObject2;
+import androidx.test.uiautomator.Until;
 
 /**
- * Operations on Home screen qsb.
+ * Operations on home screen qsb.
  */
-class HomeQsb extends Qsb {
+public class HomeQsb {
 
-    private final UiObject2 mHotSeat;
+    private final LauncherInstrumentation mLauncher;
+    private static final String ASSISTANT_APP_PACKAGE = "com.google.android.googlequicksearchbox";
+    private static final String ASSISTANT_ICON_RES_ID = "mic_icon";
 
-    HomeQsb(LauncherInstrumentation launcher, UiObject2 hotseat) {
-        super(launcher);
-        mHotSeat = hotseat;
-        waitForQsbObject();
+
+    HomeQsb(LauncherInstrumentation launcher) {
+        mLauncher = launcher;
+        mLauncher.waitForLauncherObject("search_container_hotseat");
     }
 
-    @Override
-    protected UiObject2 waitForQsbObject() {
-        return mLauncher.waitForObjectInContainer(mHotSeat, "search_container_hotseat");
+    /**
+     * Launch assistant app by tapping mic icon on qsb.
+     */
+    @NonNull
+    public LaunchedAppState launchAssistant() {
+        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
+                "want to click assistant mic icon button");
+             LauncherInstrumentation.Closable e = mLauncher.eventsCheck()) {
+            UiObject2 assistantIcon = mLauncher.waitForLauncherObject(ASSISTANT_ICON_RES_ID);
+
+            LauncherInstrumentation.log("HomeQsb.launchAssistant before click "
+                    + assistantIcon.getVisibleCenter() + " in "
+                    + mLauncher.getVisibleBounds(assistantIcon));
+
+            mLauncher.clickLauncherObject(assistantIcon);
+
+            try (LauncherInstrumentation.Closable c2 = mLauncher.addContextLayer("clicked")) {
+                // assert Assistant App Launched
+                BySelector selector = By.pkg(ASSISTANT_APP_PACKAGE);
+                mLauncher.assertTrue(
+                        "assistant app didn't start: (" + selector + ")",
+                        mLauncher.getDevice().wait(Until.hasObject(selector),
+                                LauncherInstrumentation.WAIT_TIME_MS)
+                );
+                return new LaunchedAppState(mLauncher);
+            }
+        }
+    }
+
+    /**
+     * Show search result page from tapping qsb.
+     */
+    public SearchResultFromQsb showSearchResult() {
+        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
+                "want to open search result page");
+             LauncherInstrumentation.Closable e = mLauncher.eventsCheck()) {
+            mLauncher.clickLauncherObject(
+                    mLauncher.waitForLauncherObject("search_container_hotseat"));
+            try (LauncherInstrumentation.Closable c2 = mLauncher.addContextLayer(
+                    "clicked qsb to open search result page")) {
+                return new SearchResultFromQsb(mLauncher);
+            }
+        }
     }
 }
diff --git a/tests/tapl/com/android/launcher3/tapl/Qsb.java b/tests/tapl/com/android/launcher3/tapl/Qsb.java
deleted file mode 100644
index 6bc4f21..0000000
--- a/tests/tapl/com/android/launcher3/tapl/Qsb.java
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright (C) 2022 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.launcher3.tapl;
-
-import androidx.annotation.NonNull;
-import androidx.test.uiautomator.By;
-import androidx.test.uiautomator.BySelector;
-import androidx.test.uiautomator.UiObject2;
-import androidx.test.uiautomator.Until;
-
-/**
- * Operations on qsb from either Home screen or AllApp screen.
- */
-public abstract class Qsb {
-
-    private static final String ASSISTANT_APP_PACKAGE = "com.google.android.googlequicksearchbox";
-    private static final String ASSISTANT_ICON_RES_ID = "mic_icon";
-    protected final LauncherInstrumentation mLauncher;
-
-    protected Qsb(LauncherInstrumentation launcher) {
-        mLauncher = launcher;
-    }
-
-    // Waits for the quick search box.
-    protected abstract UiObject2 waitForQsbObject();
-    /**
-     * Launch assistant app by tapping mic icon on qsb.
-     */
-
-    @NonNull
-    public LaunchedAppState launchAssistant() {
-        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
-                "want to click assistant mic icon button");
-             LauncherInstrumentation.Closable e = mLauncher.eventsCheck()) {
-            UiObject2 assistantIcon = mLauncher.waitForLauncherObject(ASSISTANT_ICON_RES_ID);
-
-            LauncherInstrumentation.log("Qsb.launchAssistant before click "
-                    + assistantIcon.getVisibleCenter() + " in "
-                    + mLauncher.getVisibleBounds(assistantIcon));
-
-            mLauncher.clickLauncherObject(assistantIcon);
-
-            try (LauncherInstrumentation.Closable c2 = mLauncher.addContextLayer("clicked")) {
-                // assert Assistant App Launched
-                BySelector selector = By.pkg(ASSISTANT_APP_PACKAGE);
-                mLauncher.assertTrue(
-                        "assistant app didn't start: (" + selector + ")",
-                        mLauncher.getDevice().wait(Until.hasObject(selector),
-                                LauncherInstrumentation.WAIT_TIME_MS)
-                );
-                return new LaunchedAppState(mLauncher);
-            }
-        }
-    }
-
-    /**
-     * Show search result page from tapping qsb.
-     */
-    public SearchResultFromQsb showSearchResult() {
-        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
-                "want to open search result page");
-             LauncherInstrumentation.Closable e = mLauncher.eventsCheck()) {
-            mLauncher.clickLauncherObject(waitForQsbObject());
-            // wait for the result rendering to complete
-            mLauncher.waitForIdle();
-            try (LauncherInstrumentation.Closable c2 = mLauncher.addContextLayer(
-                    "clicked qsb to open search result page")) {
-                return new SearchResultFromQsb(mLauncher);
-            }
-        }
-    }
-}
diff --git a/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java b/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java
index 80176e9..80e4116 100644
--- a/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java
+++ b/tests/tapl/com/android/launcher3/tapl/SearchResultFromQsb.java
@@ -23,7 +23,7 @@
 import java.util.ArrayList;
 
 /**
- * Operations on search result page opened from qsb.
+ * Operations on search result page opened from home screen qsb.
  */
 public class SearchResultFromQsb {
     // The input resource id in the search box.
diff --git a/tests/tapl/com/android/launcher3/tapl/Workspace.java b/tests/tapl/com/android/launcher3/tapl/Workspace.java
index e5c467a..7ed5788 100644
--- a/tests/tapl/com/android/launcher3/tapl/Workspace.java
+++ b/tests/tapl/com/android/launcher3/tapl/Workspace.java
@@ -118,11 +118,10 @@
      *
      * The qsb must already be visible when calling this method.
      */
-    @NonNull
-    public Qsb getQsb() {
+    public HomeQsb getQsb() {
         try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
                 "want to get the home qsb")) {
-            return new HomeQsb(mLauncher, mHotseat);
+            return new HomeQsb(mLauncher);
         }
     }