diff --git a/test/resolvers/MutationResolverTests.test.ts b/test/resolvers/MutationResolverTests.test.ts
index 86ff7a6..afad9d8 100644
--- a/test/resolvers/MutationResolverTests.test.ts
+++ b/test/resolvers/MutationResolverTests.test.ts
@@ -56,6 +56,8 @@ describe("MutationResolvers", () => {
       const notificationResponse = response.body.singleResult.data?.scheduleNotification as any;
       expect(notificationResponse?.success).toBe(true);
       expect(notificationResponse?.notification).toStrictEqual(notificationInput);
+
+      expect(context.notificationService.isNotificationScheduled(notificationInput)).toBe(true);
     });
 
     it("fails if the shuttle ID doesn't exist", async () => {
@@ -73,6 +75,8 @@ describe("MutationResolvers", () => {
       expect(response.body.singleResult.errors).toBeUndefined();
       const notificationResponse = response.body.singleResult.data?.scheduleNotification as any;
       expect(notificationResponse.success).toBe(false);
+
+      expect(context.notificationService.isNotificationScheduled(notificationInput)).toBe(false);
     });
 
     it("fails if the stop ID doesn't exist", async () => {
@@ -90,6 +94,8 @@ describe("MutationResolvers", () => {
       expect(response.body.singleResult.errors).toBeUndefined();
       const notificationResponse = response.body.singleResult.data?.scheduleNotification as any;
       expect(notificationResponse.success).toBe(false);
+
+      expect(context.notificationService.isNotificationScheduled(notificationInput)).toBe(false);
     });
   });