diff --git a/packages/core/CalendarManager.test.ts b/packages/core/CalendarManager.test.ts
new file mode 100644
index 0000000000..1ded71a905
--- /dev/null
+++ b/packages/core/CalendarManager.test.ts
@@ -0,0 +1,35 @@
+import { describe, expect, it } from "vitest";
+
+import { getCalendarCredentials } from "./CalendarManager";
+
+describe("CalendarManager tests", () => {
+  describe("fn: getCalendarCredentials", () => {
+    it("should only return credentials for calendar apps", () => {
+      const googleCalendarCredentials = {
+        id: "1",
+        appId: "google-calendar",
+        type: "google_calendar",
+        userId: "3",
+        key: {
+          access_token: "google_calendar_key"
+        },
+        invalid: false
+      };
+
+      const credentials = [googleCalendarCredentials, {
+        id: "2",
+        appId: "office365-video",
+        type: "office365_video",
+        userId: "4",
+        key: {
+          access_token: "office365_video_key"
+        },
+        invalid: false
+      }];
+
+      const calendarCredentials = getCalendarCredentials(credentials);
+      expect(calendarCredentials).toHaveLength(1);
+      expect(calendarCredentials[0].credential).toBe(googleCalendarCredentials);
+    });
+  });
+});