diff --git a/src/com/android/launcher3/AppWidgetResizeFrame.java b/src/com/android/launcher3/AppWidgetResizeFrame.java
index b51e850..ef56246 100644
--- a/src/com/android/launcher3/AppWidgetResizeFrame.java
+++ b/src/com/android/launcher3/AppWidgetResizeFrame.java
@@ -37,6 +37,8 @@
 import com.android.launcher3.celllayout.CellLayoutLayoutParams;
 import com.android.launcher3.celllayout.CellPosMapper.CellPos;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.debug.TestEvent;
+import com.android.launcher3.debug.TestEventEmitter;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.keyboard.ViewGroupFocusHelper;
 import com.android.launcher3.logging.InstanceId;
@@ -221,6 +223,9 @@
         dl.addView(frame);
         frame.mIsOpen = true;
         frame.post(() -> frame.snapToWidget(false));
+        TestEventEmitter.INSTANCE.get(widget.getContext()).sendEvent(
+                TestEvent.RESIZE_FRAME_SHOWING
+        );
     }
 
     private void setCornerRadiusFromWidget() {
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index d905801..6a2f536 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -166,7 +166,6 @@
 import androidx.core.os.BuildCompat;
 import androidx.window.embedding.RuleController;
 
-import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.DropTarget.DragObject;
 import com.android.launcher3.accessibility.LauncherAccessibilityDelegate;
 import com.android.launcher3.allapps.ActivityAllAppsContainerView;
@@ -181,6 +180,8 @@
 import com.android.launcher3.celllayout.CellPosMapper.TwoPanelCellPosMapper;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.debug.TestEvent;
+import com.android.launcher3.debug.TestEventEmitter;
 import com.android.launcher3.dot.DotInfo;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
@@ -595,6 +596,7 @@
             RuleController.getInstance(this).setRules(
                     RuleController.parseRules(this, R.xml.split_configuration));
         }
+        TestEventEmitter.INSTANCE.get(this).sendEvent(TestEvent.LAUNCHER_ON_CREATE);
     }
 
     protected ModelCallbacks createModelCallbacks() {
diff --git a/src/com/android/launcher3/ModelCallbacks.kt b/src/com/android/launcher3/ModelCallbacks.kt
index 13062b6..83c34ce 100644
--- a/src/com/android/launcher3/ModelCallbacks.kt
+++ b/src/com/android/launcher3/ModelCallbacks.kt
@@ -11,6 +11,8 @@
 import com.android.launcher3.WorkspaceLayoutManager.FIRST_SCREEN_ID
 import com.android.launcher3.allapps.AllAppsStore
 import com.android.launcher3.config.FeatureFlags
+import com.android.launcher3.debug.TestEvent
+import com.android.launcher3.debug.TestEventEmitter
 import com.android.launcher3.model.BgDataModel
 import com.android.launcher3.model.StringCache
 import com.android.launcher3.model.data.AppInfo
@@ -156,6 +158,7 @@
             /*pause=*/ false,
             deviceProfile.isTwoPanels
         )
+        TestEventEmitter.INSTANCE.get(launcher).sendEvent(TestEvent.WORKSPACE_FINISH_LOADING)
     }
 
     /**
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index e601a3e..2995e8a 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -80,6 +80,8 @@
 import com.android.launcher3.celllayout.CellPosMapper;
 import com.android.launcher3.celllayout.CellPosMapper.CellPos;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.debug.TestEvent;
+import com.android.launcher3.debug.TestEventEmitter;
 import com.android.launcher3.dot.FolderDotInfo;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
@@ -314,7 +316,6 @@
      */
     public Workspace(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
-
         mLauncher = Launcher.getLauncher(context);
         mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this);
         mWallpaperManager = WallpaperManager.getInstance(context);
@@ -2218,6 +2219,7 @@
         if (d.stateAnnouncer != null && !droppedOnOriginalCell) {
             d.stateAnnouncer.completeAction(R.string.item_moved);
         }
+        TestEventEmitter.INSTANCE.get(getContext()).sendEvent(TestEvent.WORKSPACE_ON_DROP);
     }
 
     @Nullable
diff --git a/src/com/android/launcher3/debug/TestEventsEmitterProduction.kt b/src/com/android/launcher3/debug/TestEventsEmitterProduction.kt
new file mode 100644
index 0000000..650df5a
--- /dev/null
+++ b/src/com/android/launcher3/debug/TestEventsEmitterProduction.kt
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2024 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.debug
+
+import android.content.Context
+import com.android.launcher3.util.MainThreadInitializedObject
+import com.android.launcher3.util.SafeCloseable
+
+/** Events fired by the launcher. */
+enum class TestEvent(val event: String) {
+    LAUNCHER_ON_CREATE("LAUNCHER_ON_CREATE"),
+    WORKSPACE_ON_DROP("WORKSPACE_ON_DROP"),
+    RESIZE_FRAME_SHOWING("RESIZE_FRAME_SHOWING"),
+    WORKSPACE_FINISH_LOADING("WORKSPACE_FINISH_LOADING"),
+}
+
+/** Interface to create TestEventEmitters. */
+interface TestEventEmitter : SafeCloseable {
+
+    companion object {
+        @JvmField
+        val INSTANCE =
+            MainThreadInitializedObject<TestEventEmitter> { _: Context? ->
+                TestEventsEmitterProduction()
+            }
+    }
+
+    fun sendEvent(event: TestEvent)
+}
+
+/**
+ * TestEventsEmitterProduction shouldn't do anything since it runs on the launcher code and not on
+ * tests. This is just a placeholder and test should override this class.
+ */
+class TestEventsEmitterProduction : TestEventEmitter {
+
+    override fun close() {}
+
+    override fun sendEvent(event: TestEvent) {}
+}
diff --git a/src/com/android/launcher3/dragndrop/DragController.java b/src/com/android/launcher3/dragndrop/DragController.java
index bc5a164..c50c008 100644
--- a/src/com/android/launcher3/dragndrop/DragController.java
+++ b/src/com/android/launcher3/dragndrop/DragController.java
@@ -27,6 +27,7 @@
 import android.view.View;
 
 import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
 
 import com.android.app.animation.Interpolators;
 import com.android.launcher3.DragSource;
@@ -69,8 +70,9 @@
      */
     protected DragDriver mDragDriver = null;
 
+    @VisibleForTesting
     /** Options controlling the drag behavior. */
-    protected DragOptions mOptions;
+    public DragOptions mOptions;
 
     /** Coordinate for motion down event */
     protected final Point mMotionDown = new Point();
@@ -79,7 +81,8 @@
 
     protected final Point mTmpPoint = new Point();
 
-    protected DropTarget.DragObject mDragObject;
+    @VisibleForTesting
+    public DropTarget.DragObject mDragObject;
 
     /** Who can receive drop events */
     private final ArrayList<DropTarget> mDropTargets = new ArrayList<>();