diff --git a/Android.bp b/Android.bp
index 7c78ba8..f5a38b4 100644
--- a/Android.bp
+++ b/Android.bp
@@ -36,6 +36,7 @@
         "tests/tapl/**/*.java",
         "src/com/android/launcher3/ResourceUtils.java",
         "src/com/android/launcher3/testing/TestProtocol.java",
+        "src/com/android/launcher3/testing/*Request.java",
     ],
     resource_dirs: [ ],
     manifest: "tests/tapl/AndroidManifest.xml",
diff --git a/ext_tests/src/com/android/launcher3/testing/DebugTestInformationHandler.java b/ext_tests/src/com/android/launcher3/testing/DebugTestInformationHandler.java
index 0f61d14..02206c0 100644
--- a/ext_tests/src/com/android/launcher3/testing/DebugTestInformationHandler.java
+++ b/ext_tests/src/com/android/launcher3/testing/DebugTestInformationHandler.java
@@ -27,6 +27,7 @@
 import android.view.View;
 
 import androidx.annotation.Keep;
+import androidx.annotation.Nullable;
 
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherSettings;
@@ -124,7 +125,7 @@
     }
 
     @Override
-    public Bundle call(String method, String arg) {
+    public Bundle call(String method, String arg, @Nullable Bundle extras) {
         final Bundle response = new Bundle();
         switch (method) {
             case TestProtocol.REQUEST_APP_LIST_FREEZE_FLAGS: {
@@ -219,7 +220,7 @@
             }
 
             default:
-                return super.call(method, arg);
+                return super.call(method, arg, extras);
         }
     }
 }
diff --git a/quickstep/src/com/android/quickstep/QuickstepTestInformationHandler.java b/quickstep/src/com/android/quickstep/QuickstepTestInformationHandler.java
index ae2583b..4c570f1 100644
--- a/quickstep/src/com/android/quickstep/QuickstepTestInformationHandler.java
+++ b/quickstep/src/com/android/quickstep/QuickstepTestInformationHandler.java
@@ -5,6 +5,8 @@
 import android.graphics.Rect;
 import android.os.Bundle;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.testing.TestInformationHandler;
 import com.android.launcher3.testing.TestProtocol;
@@ -21,7 +23,7 @@
     }
 
     @Override
-    public Bundle call(String method, String arg) {
+    public Bundle call(String method, String arg, @Nullable Bundle extras) {
         final Bundle response = new Bundle();
         switch (method) {
             case TestProtocol.REQUEST_ALL_APPS_TO_OVERVIEW_SWIPE_HEIGHT: {
@@ -82,7 +84,7 @@
             }
         }
 
-        return super.call(method, arg);
+        return super.call(method, arg, extras);
     }
 
     @Override
diff --git a/src/com/android/launcher3/testing/TestInformationHandler.java b/src/com/android/launcher3/testing/TestInformationHandler.java
index 8ebfd62..2eae99a 100644
--- a/src/com/android/launcher3/testing/TestInformationHandler.java
+++ b/src/com/android/launcher3/testing/TestInformationHandler.java
@@ -23,16 +23,23 @@
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Insets;
+import android.graphics.Point;
+import android.graphics.Rect;
 import android.os.Build;
 import android.os.Bundle;
 import android.view.WindowInsets;
 
+import androidx.annotation.Nullable;
+
+import com.android.launcher3.CellLayout;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.R;
+import com.android.launcher3.Workspace;
+import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.util.ResourceBasedOverride;
 import com.android.launcher3.widget.picker.WidgetsFullSheet;
 
@@ -62,12 +69,18 @@
         mLauncherAppState = LauncherAppState.getInstanceNoCreate();
     }
 
-    public Bundle call(String method) {
-        return call(method, /*arg=*/ null);
-    }
-
-    public Bundle call(String method, String arg) {
+    /**
+     * handle a request and return result Bundle.
+     *
+     * @param method request name.
+     * @param arg    optional single string argument.
+     * @param extra  extra request payload.
+     */
+    public Bundle call(String method, String arg, @Nullable Bundle extra) {
         final Bundle response = new Bundle();
+        if (extra != null && extra.getClassLoader() == null) {
+            extra.setClassLoader(getClass().getClassLoader());
+        }
         switch (method) {
             case TestProtocol.REQUEST_HOME_TO_ALL_APPS_SWIPE_HEIGHT: {
                 return getLauncherUIProperty(Bundle::putInt, l -> {
@@ -163,11 +176,48 @@
                                 .forceAllowRotationForTesting(Boolean.parseBoolean(arg)));
                 return null;
 
+            case TestProtocol.REQUEST_WORKSPACE_CELL_LAYOUT_SIZE:
+                return getLauncherUIProperty(Bundle::putIntArray, launcher -> {
+                    final Workspace workspace = launcher.getWorkspace();
+                    final int screenId = workspace.getScreenIdForPageIndex(
+                            workspace.getCurrentPage());
+                    final CellLayout cellLayout = workspace.getScreenWithId(screenId);
+                    return new int[]{cellLayout.getCountX(), cellLayout.getCountY()};
+                });
+
+            case TestProtocol.REQUEST_WORKSPACE_CELL_CENTER:
+                final WorkspaceCellCenterRequest request = extra.getParcelable(
+                        TestProtocol.TEST_INFO_REQUEST_FIELD);
+                return getLauncherUIProperty(Bundle::putParcelable, launcher -> {
+                    final Workspace workspace = launcher.getWorkspace();
+                    // TODO(b/216387249): allow caller selecting different pages.
+                    CellLayout cellLayout = (CellLayout) workspace.getPageAt(
+                            workspace.getCurrentPage());
+                    final Rect cellRect = getDescendantRectRelativeToDragLayerForCell(launcher,
+                            cellLayout, request.cellX, request.cellY, request.spanX, request.spanY);
+                    return new Point(cellRect.centerX(), cellRect.centerY());
+                });
+
             default:
                 return null;
         }
     }
 
+    private static Rect getDescendantRectRelativeToDragLayerForCell(Launcher launcher,
+            CellLayout cellLayout, int cellX, int cellY, int spanX, int spanY) {
+        final DragLayer dragLayer = launcher.getDragLayer();
+        final Rect target = new Rect();
+
+        cellLayout.cellToRect(cellX, cellY, spanX, spanY, target);
+        int[] leftTop = {target.left, target.top};
+        int[] rightBottom = {target.right, target.bottom};
+        dragLayer.getDescendantCoordRelativeToSelf(cellLayout, leftTop);
+        dragLayer.getDescendantCoordRelativeToSelf(cellLayout, rightBottom);
+
+        target.set(leftTop[0], leftTop[1], rightBottom[0], rightBottom[1]);
+        return target;
+    }
+
     protected boolean isLauncherInitialized() {
         return Launcher.ACTIVITY_TRACKER.getCreatedActivity() == null
                 || LauncherAppState.getInstance(mContext).getModel().isModelLoaded();
diff --git a/src/com/android/launcher3/testing/TestInformationProvider.java b/src/com/android/launcher3/testing/TestInformationProvider.java
index 4f2619c..bcc7c2d 100644
--- a/src/com/android/launcher3/testing/TestInformationProvider.java
+++ b/src/com/android/launcher3/testing/TestInformationProvider.java
@@ -60,7 +60,7 @@
         if (Utilities.IS_RUNNING_IN_TEST_HARNESS) {
             TestInformationHandler handler = TestInformationHandler.newInstance(getContext());
             handler.init(getContext());
-            return handler.call(method, arg);
+            return handler.call(method, arg, extras);
         }
         return null;
     }
diff --git a/src/com/android/launcher3/testing/TestInformationRequest.java b/src/com/android/launcher3/testing/TestInformationRequest.java
new file mode 100644
index 0000000..272ae56
--- /dev/null
+++ b/src/com/android/launcher3/testing/TestInformationRequest.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2021 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.testing;
+
+import android.os.Parcelable;
+
+/**
+ * A Request sent to TestInformationHandler can implement this interface to carry more information.
+ */
+public interface TestInformationRequest extends Parcelable {
+    /**
+     * The name for handler to dispatch request.
+     */
+    String getRequestName();
+}
diff --git a/src/com/android/launcher3/testing/TestProtocol.java b/src/com/android/launcher3/testing/TestProtocol.java
index 7c6ad9f..5156f56 100644
--- a/src/com/android/launcher3/testing/TestProtocol.java
+++ b/src/com/android/launcher3/testing/TestProtocol.java
@@ -68,6 +68,7 @@
         }
     }
 
+    public static final String TEST_INFO_REQUEST_FIELD = "request";
     public static final String TEST_INFO_RESPONSE_FIELD = "response";
 
     public static final String REQUEST_HOME_TO_OVERVIEW_SWIPE_HEIGHT =
@@ -104,6 +105,10 @@
     public static final String REQUEST_GET_ACTIVITIES_CREATED_COUNT =
             "get-activities-created-count";
     public static final String REQUEST_GET_ACTIVITIES = "get-activities";
+
+    public static final String REQUEST_WORKSPACE_CELL_LAYOUT_SIZE = "workspace-cell-layout-size";
+    public static final String REQUEST_WORKSPACE_CELL_CENTER = "workspace-cell-center";
+
     public static final String REQUEST_GET_FOCUSED_TASK_HEIGHT_FOR_TABLET =
             "get-focused-task-height-for-tablet";
     public static final String REQUEST_GET_GRID_TASK_SIZE_RECT_FOR_TABLET =
diff --git a/src/com/android/launcher3/testing/WorkspaceCellCenterRequest.java b/src/com/android/launcher3/testing/WorkspaceCellCenterRequest.java
new file mode 100644
index 0000000..71ab09f
--- /dev/null
+++ b/src/com/android/launcher3/testing/WorkspaceCellCenterRequest.java
@@ -0,0 +1,138 @@
+/*
+ * 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.testing;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * Request object for querying a workspace cell region in Rect.
+ */
+public class WorkspaceCellCenterRequest implements TestInformationRequest {
+    public final int cellX;
+    public final int cellY;
+    public final int spanX;
+    public final int spanY;
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeInt(cellX);
+        dest.writeInt(cellY);
+        dest.writeInt(spanX);
+        dest.writeInt(spanY);
+    }
+
+    public static final Parcelable.Creator<WorkspaceCellCenterRequest> CREATOR =
+            new Parcelable.Creator<WorkspaceCellCenterRequest>() {
+
+                @Override
+                public WorkspaceCellCenterRequest createFromParcel(Parcel source) {
+                    return new WorkspaceCellCenterRequest(source);
+                }
+
+                @Override
+                public WorkspaceCellCenterRequest[] newArray(int size) {
+                    return new WorkspaceCellCenterRequest[size];
+                }
+            };
+
+    private WorkspaceCellCenterRequest(int cellX, int cellY, int spanX, int spanY) {
+        this.cellX = cellX;
+        this.cellY = cellY;
+        this.spanX = spanX;
+        this.spanY = spanY;
+    }
+
+    private WorkspaceCellCenterRequest(Parcel in) {
+        this(in.readInt(), in.readInt(), in.readInt(), in.readInt());
+    }
+
+    /**
+     * Create a builder for WorkspaceCellRectRequest.
+     *
+     * @return WorkspaceCellRectRequest builder.
+     */
+    public static WorkspaceCellCenterRequest.Builder builder() {
+        return new WorkspaceCellCenterRequest.Builder();
+    }
+
+    @Override
+    public String getRequestName() {
+        return TestProtocol.REQUEST_WORKSPACE_CELL_CENTER;
+    }
+
+    /**
+     * WorkspaceCellRectRequest Builder.
+     */
+    public static final class Builder {
+        private int mCellX;
+        private int mCellY;
+        private int mSpanX;
+        private int mSpanY;
+
+        private Builder() {
+            this.mCellX = 0;
+            this.mCellY = 0;
+            this.mSpanX = 1;
+            this.mSpanY = 1;
+        }
+
+        /**
+         * Set X coordinate of upper left corner expressed as a cell position
+         */
+        public WorkspaceCellCenterRequest.Builder setCellX(int x) {
+            this.mCellX = x;
+            return this;
+        }
+
+        /**
+         * Set Y coordinate of upper left corner expressed as a cell position
+         */
+        public WorkspaceCellCenterRequest.Builder setCellY(int y) {
+            this.mCellY = y;
+            return this;
+        }
+
+        /**
+         * Set span Width in cells
+         */
+        public WorkspaceCellCenterRequest.Builder setSpanX(int x) {
+            this.mSpanX = x;
+            return this;
+        }
+
+        /**
+         * Set span Height in cells
+         */
+        public WorkspaceCellCenterRequest.Builder setSpanY(int y) {
+            this.mCellY = y;
+            return this;
+        }
+
+        /**
+         * build the WorkspaceCellRectRequest.
+         */
+        public WorkspaceCellCenterRequest build() {
+            return new WorkspaceCellCenterRequest(mCellX, mCellY, mSpanX, mSpanY);
+        }
+    }
+}
diff --git a/tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java b/tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java
index 4b4f1d9..2035da1 100644
--- a/tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java
+++ b/tests/src/com/android/launcher3/ui/TaplTestsLauncher3.java
@@ -24,6 +24,8 @@
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 
+import android.graphics.Point;
+
 import androidx.test.filters.LargeTest;
 import androidx.test.runner.AndroidJUnit4;
 
@@ -368,8 +370,7 @@
             AllApps allApps = mLauncher.getWorkspace().switchToAllApps();
             allApps.freeze();
             try {
-                appIcon = allApps.getAppIcon(name);
-                appIcon.dragToWorkspace(false, false);
+                allApps.getAppIcon(name).dragToWorkspace(false, false);
             } finally {
                 allApps.unfreeze();
             }
@@ -431,7 +432,7 @@
     @PortraitLandscape
     public void testDeleteFromWorkspace() throws Exception {
         // test delete both built-in apps and user-installed app from workspace
-        for (String appName : new String[] {"Gmail", "Play Store", APP_NAME}) {
+        for (String appName : new String[]{"Gmail", "Play Store", APP_NAME}) {
             final AppIcon appIcon = createShortcutIfNotExist(appName);
             Workspace workspace = mLauncher.getWorkspace().deleteAppIcon(appIcon);
             assertNull(appName + " app was found after being deleted from workspace",
@@ -481,7 +482,39 @@
         }
     }
 
+    @Test
+    @PortraitLandscape
+    public void testDragAppIconToWorkspaceCell() throws Exception {
+        final Point dimensions = mLauncher.getWorkspace().getIconGridDimensions();
+
+        Point[] targets = {
+                new Point(0, 1),
+                new Point(0, dimensions.y - 2),
+                new Point(dimensions.x - 1, 1),
+                new Point(dimensions.x - 1, dimensions.y - 2),
+                new Point(dimensions.x / 2, dimensions.y / 2)
+        };
+
+        for (Point target : targets) {
+            final AllApps allApps = mLauncher.getWorkspace().switchToAllApps();
+            allApps.freeze();
+            try {
+                allApps.getAppIcon(APP_NAME).dragToWorkspace(target.x, target.y);
+            } finally {
+                allApps.unfreeze();
+            }
+            // Reset the workspace for the next shortcut creation.
+            initialize(this);
+        }
+
+        // test to move a shortcut to other cell.
+        final AppIcon launcherTestAppIcon = createShortcutIfNotExist(APP_NAME);
+        for (Point target : targets) {
+            launcherTestAppIcon.dragToWorkspace(target.x, target.y);
+        }
+    }
+
     public static String getAppPackageName() {
         return getInstrumentation().getContext().getPackageName();
     }
-}
\ No newline at end of file
+}
diff --git a/tests/tapl/com/android/launcher3/tapl/AllApps.java b/tests/tapl/com/android/launcher3/tapl/AllApps.java
index c1b0220..800322b 100644
--- a/tests/tapl/com/android/launcher3/tapl/AllApps.java
+++ b/tests/tapl/com/android/launcher3/tapl/AllApps.java
@@ -51,8 +51,7 @@
         // Wait for the recycler to populate.
         mLauncher.waitForObjectInContainer(appListRecycler, By.clazz(TextView.class));
         verifyNotFrozen("All apps freeze flags upon opening all apps");
-        mIconHeight = mLauncher.getTestInfo(
-                        TestProtocol.REQUEST_ICON_HEIGHT)
+        mIconHeight = mLauncher.getTestInfo(TestProtocol.REQUEST_ICON_HEIGHT)
                 .getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
     }
 
@@ -211,7 +210,7 @@
 
     private int getAllAppsScroll() {
         return mLauncher.getTestInfo(
-                        TestProtocol.REQUEST_APPS_LIST_SCROLL_Y)
+                TestProtocol.REQUEST_APPS_LIST_SCROLL_Y)
                 .getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
     }
 
diff --git a/tests/tapl/com/android/launcher3/tapl/AppIcon.java b/tests/tapl/com/android/launcher3/tapl/AppIcon.java
index 8fa9e12..50611d7 100644
--- a/tests/tapl/com/android/launcher3/tapl/AppIcon.java
+++ b/tests/tapl/com/android/launcher3/tapl/AppIcon.java
@@ -27,6 +27,7 @@
 
 import com.android.launcher3.testing.TestProtocol;
 
+import java.util.function.Supplier;
 import java.util.regex.Pattern;
 
 /**
@@ -34,8 +35,11 @@
  */
 public abstract class AppIcon extends Launchable implements FolderDragTarget {
 
+    private final String mAppName;
+
     AppIcon(LauncherInstrumentation launcher, UiObject2 icon) {
         super(launcher, icon);
+        mAppName = icon.getText();
     }
 
     static BySelector getAppIconSelector(String appName, LauncherInstrumentation launcher) {
@@ -138,4 +142,31 @@
             );
         }
     }
+
+    /**
+     * Drag an object to the given cell in workspace. The target cell must be empty.
+     *
+     * @param cellX zero based column number, starting from the left of the screen.
+     * @param cellY zero based row number, starting from the top of the screen.
+     */
+    public AppIcon dragToWorkspace(int cellX, int cellY) {
+        try (LauncherInstrumentation.Closable e = mLauncher.eventsCheck();
+             LauncherInstrumentation.Closable c = mLauncher.addContextLayer(
+                     String.format("want to drag the icon to cell(%d, %d)", cellX, cellY))
+        ) {
+            final Supplier<Point> dest = () -> Workspace.getCellCenter(mLauncher, cellX, cellY);
+            Workspace.dragIconToWorkspace(mLauncher, this, dest, true, getLongPressIndicator(),
+                    () -> addExpectedEventsForLongClick(), null);
+            try (LauncherInstrumentation.Closable ignore = mLauncher.addContextLayer("dragged")) {
+                WorkspaceAppIcon appIcon =
+                        (WorkspaceAppIcon) mLauncher.getWorkspace().getWorkspaceAppIcon(mAppName);
+                mLauncher.assertTrue(
+                        String.format(
+                                "The %s icon should be in the cell (%d, %d).", mAppName, cellX,
+                                cellY),
+                        appIcon.isInCell(cellX, cellY));
+                return appIcon;
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index 5511770..5287b82 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -66,6 +66,7 @@
 import androidx.test.uiautomator.Until;
 
 import com.android.launcher3.ResourceUtils;
+import com.android.launcher3.testing.TestInformationRequest;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.systemui.shared.system.ContextUtils;
 import com.android.systemui.shared.system.QuickStepContract;
@@ -301,9 +302,13 @@
     }
 
     Bundle getTestInfo(String request, String arg) {
+        return getTestInfo(request, arg, null);
+    }
+
+    Bundle getTestInfo(String request, String arg, Bundle extra) {
         try (ContentProviderClient client = getContext().getContentResolver()
                 .acquireContentProviderClient(mTestProviderUri)) {
-            return client.call(request, arg, null);
+            return client.call(request, arg, extra);
         } catch (DeadObjectException e) {
             fail("Launcher crashed");
             return null;
@@ -312,6 +317,12 @@
         }
     }
 
+    Bundle getTestInfo(TestInformationRequest request) {
+        Bundle extra = new Bundle();
+        extra.putParcelable(TestProtocol.TEST_INFO_REQUEST_FIELD, request);
+        return getTestInfo(request.getRequestName(), null, extra);
+    }
+
     Insets getTargetInsets() {
         return getTestInfo(TestProtocol.REQUEST_TARGET_INSETS)
                 .getParcelable(TestProtocol.TEST_INFO_RESPONSE_FIELD);
@@ -1757,4 +1768,4 @@
         return ResourceUtils.getBoolByName(
                 "config_supportsRoundedCornersOnWindows", resources, false);
     }
-}
\ No newline at end of file
+}
diff --git a/tests/tapl/com/android/launcher3/tapl/Workspace.java b/tests/tapl/com/android/launcher3/tapl/Workspace.java
index 16987e9..1947da3 100644
--- a/tests/tapl/com/android/launcher3/tapl/Workspace.java
+++ b/tests/tapl/com/android/launcher3/tapl/Workspace.java
@@ -41,6 +41,7 @@
 import androidx.test.uiautomator.Until;
 
 import com.android.launcher3.testing.TestProtocol;
+import com.android.launcher3.testing.WorkspaceCellCenterRequest;
 
 import java.util.List;
 import java.util.function.Supplier;
@@ -88,7 +89,7 @@
             final int windowCornerRadius = (int) Math.ceil(mLauncher.getWindowCornerRadius());
             final int startY = deviceHeight - Math.max(bottomGestureMargin, windowCornerRadius) - 1;
             final int swipeHeight = mLauncher.getTestInfo(
-                            TestProtocol.REQUEST_HOME_TO_ALL_APPS_SWIPE_HEIGHT)
+                    TestProtocol.REQUEST_HOME_TO_ALL_APPS_SWIPE_HEIGHT)
                     .getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
             LauncherInstrumentation.log(
                     "switchToAllApps: deviceHeight = " + deviceHeight + ", startY = " + startY
@@ -180,8 +181,8 @@
      *
      * @param appIcon   - icon to drag.
      * @param pageDelta - how many pages should the icon be dragged from the current page.
-     *                    It can be a negative value. currentPage + pageDelta should be greater
-     *                    than or equal to 0.
+     *                  It can be a negative value. currentPage + pageDelta should be greater
+     *                  than or equal to 0.
      */
     public void dragIcon(AppIcon appIcon, int pageDelta) {
         if (mHotseat.getVisibleBounds().height() > mHotseat.getVisibleBounds().width()) {
@@ -266,8 +267,9 @@
     /**
      * Uninstall the appIcon by dragging it to the 'uninstall' drop point of the drop_target_bar.
      *
-     * @param launcher the root TAPL instrumentation object of {@link LauncherInstrumentation} type.
-     * @param appIcon to be uninstalled.
+     * @param launcher              the root TAPL instrumentation object of {@link
+     *                              LauncherInstrumentation} type.
+     * @param appIcon               to be uninstalled.
      * @param expectLongClickEvents the runnable to be executed to verify expected longclick event.
      * @return validated workspace after the existing appIcon being uninstalled.
      */
@@ -305,6 +307,23 @@
     }
 
     /**
+     * Get cell layout's grids size. The return point's x and y values are the cell counts in X and
+     * Y directions respectively, not the values in pixels.
+     */
+    public Point getIconGridDimensions() {
+        int[] countXY = mLauncher.getTestInfo(
+                TestProtocol.REQUEST_WORKSPACE_CELL_LAYOUT_SIZE).getIntArray(
+                TestProtocol.TEST_INFO_RESPONSE_FIELD);
+        return new Point(countXY[0], countXY[1]);
+    }
+
+    static Point getCellCenter(LauncherInstrumentation launcher, int cellX, int cellY) {
+        return launcher.getTestInfo(WorkspaceCellCenterRequest.builder().setCellX(
+                cellX).setCellY(cellY).build()).getParcelable(
+                TestProtocol.TEST_INFO_RESPONSE_FIELD);
+    }
+
+    /**
      * Finds folder icons in the current workspace.
      *
      * @return a list of folder icons.
diff --git a/tests/tapl/com/android/launcher3/tapl/WorkspaceAppIcon.java b/tests/tapl/com/android/launcher3/tapl/WorkspaceAppIcon.java
index 5f4e469..0523a63 100644
--- a/tests/tapl/com/android/launcher3/tapl/WorkspaceAppIcon.java
+++ b/tests/tapl/com/android/launcher3/tapl/WorkspaceAppIcon.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.tapl;
 
+import android.graphics.Point;
+
 import androidx.test.uiautomator.UiObject2;
 
 import java.util.regex.Pattern;
@@ -33,4 +35,9 @@
     protected Pattern getLongClickEvent() {
         return Workspace.LONG_CLICK_EVENT;
     }
+
+    boolean isInCell(int cellX, int cellY) {
+        final Point center = Workspace.getCellCenter(mLauncher, cellX, cellY);
+        return mObject.getParent().getVisibleBounds().contains(center.x, center.y);
+    }
 }