test: test firestore and realtime database equivalents type compatibility

Author: Jblew

src/types/EquivalentTypes.spec.test.ts

@@ -0,0 +1,32 @@
+import * as firebaseTypes from "firebase/app";
+
+import { _ } from "../_test/test_environment";
+
+import { FirestoreEquivalent } from "./FirestoreEquivalent";
+import { RealtimeDbEquivalent } from "./RealtimeDbEquivalent";
+
+describe("Firebase equivalents", () => {
+    // tslint:disable prefer-const
+    let firestore!: firebaseTypes.firestore.Firestore;
+    let database!: firebaseTypes.database.Database;
+
+    describe("FirestoreEquivalent", () => {
+        function acceptFirestoreEquivalent(firestoreEquivalent: FirestoreEquivalent) {
+            return firestoreEquivalent;
+        }
+
+        it("Matches firebase/app typings", () => {
+            acceptFirestoreEquivalent(firestore);
+        });
+    });
+
+    describe("RealtimeDbEquivalent", () => {
+        function acceptRealtimeDbEquivalent(realtimeDbEquivalent: RealtimeDbEquivalent) {
+            return realtimeDbEquivalent;
+        }
+
+        it("Matches firebase/app typings", () => {
+            acceptRealtimeDbEquivalent(database);
+        });
+    });
+});