diff --git a/client/src/stores/workflowEditorToolbarStore.test.ts b/client/src/stores/workflowEditorToolbarStore.test.ts
new file mode 100644
index 000000000000..f268c9c1cee2
--- /dev/null
+++ b/client/src/stores/workflowEditorToolbarStore.test.ts
@@ -0,0 +1,32 @@
+import { createPinia, setActivePinia } from "pinia";
+
+import { type InputCatcherEvent, useWorkflowEditorToolbarStore } from "./workflowEditorToolbarStore";
+
+describe("workflowEditorToolbarStore", () => {
+    beforeEach(() => {
+        setActivePinia(createPinia());
+    });
+
+    it("has an input catcher event bus", () => {
+        const toolbarStore = useWorkflowEditorToolbarStore("mock-workflow-id");
+
+        const receivedEvents: InputCatcherEvent[] = [];
+
+        toolbarStore.onInputCatcherEvent("pointerdown", (e) => receivedEvents.push(e));
+        toolbarStore.onInputCatcherEvent("pointerup", (e) => receivedEvents.push(e));
+        toolbarStore.onInputCatcherEvent("pointermove", (e) => receivedEvents.push(e));
+        toolbarStore.onInputCatcherEvent("temporarilyDisabled", (e) => receivedEvents.push(e));
+
+        toolbarStore.emitInputCatcherEvent("pointerdown", { type: "pointerdown", position: [100, 200] });
+        expect(receivedEvents.length).toBe(1);
+        expect(receivedEvents[0]?.position).toEqual([100, 200]);
+
+        toolbarStore.emitInputCatcherEvent("pointermove", { type: "pointermove", position: [0, 0] });
+        toolbarStore.emitInputCatcherEvent("pointerup", { type: "pointerup", position: [0, 0] });
+        toolbarStore.emitInputCatcherEvent("temporarilyDisabled", { type: "temporarilyDisabled", position: [0, 0] });
+
+        expect(receivedEvents[1]?.type).toBe("pointermove");
+        expect(receivedEvents[2]?.type).toBe("pointerup");
+        expect(receivedEvents[3]?.type).toBe("temporarilyDisabled");
+    });
+});
diff --git a/client/src/stores/workflowEditorToolbarStore.ts b/client/src/stores/workflowEditorToolbarStore.ts
index 2b3f0b2264f2..32bac6774b67 100644
--- a/client/src/stores/workflowEditorToolbarStore.ts
+++ b/client/src/stores/workflowEditorToolbarStore.ts
@@ -15,7 +15,7 @@ interface InputCatcherEventListener {
     callback: (event: InputCatcherEvent) => void;
 }
 
-interface InputCatcherEvent {
+export interface InputCatcherEvent {
     type: InputCatcherEventType;
     position: [number, number];
 }