feat: create lib function to verify FCM token

src/libs/fcm/verifyFcm.spec.ts

@@ -0,0 +1,25 @@
+import { describe, expect, it } from "bun:test";
+
+import { server } from "~/mocks";
+import "~/mocks/gToken";
+
+import { verifyFcmToken } from "./verifyFcmToken";
+
+server.listen();
+
+describe("verifyFcmToken", () => {
+  it("valid token, returns true", async () => {
+    const token =
+      "7v8sy43aq0re4r8xe7rmr0cn1fsmh6phehnfla2pa73z899zmhyarivmkt4sj6pyv0py43u6p2sim6wz2vg9ypjp9rug1keoth7f6ll3gdvas4q020u3ah51r6bjgn51j6bd92ztmtof3ljpcm8q31njvndy65enm68";
+    const res = await verifyFcmToken(token, '{"clientEmail": "test@test.com"}');
+
+    expect(res).toBeTrue();
+  });
+
+  it("invalid token, returns false", async () => {
+    const token = "abc123";
+    const res = await verifyFcmToken(token, '{"clientEmail": "test@test.com"}');
+
+    expect(res).toBeFalse();
+  });
+});