add tests for getShuttlesBySystemId

test/repositories/ApiBasedRepositoryTests.test.ts

@@ -5,6 +5,7 @@ import {
   ApiBasedRepositoryMillisecondTTLs
 } from "../../src/repositories/ApiBasedRepository";
 import { IEta } from "../../src/entities/entities";
+import * as repl from "node:repl";
 
 /**
  * Update the global fetch function to return a specific object.
@@ -512,10 +513,87 @@ describe("getShuttleById", () => {
 
 describe("getShuttlesBySystemId", () => {
   test("getShuttlesBySystemId returns old data if not expired", async () => {
+    updateGlobalFetchMockJson(genericShuttleDataBySystemId);
 
+    const initialCacheShuttle = {
+      coordinates: {
+        latitude: 33.791781,
+        longitude: -117.8589646,
+      },
+      name: "08",
+      routeId: "53966",
+      systemId: "1",
+      id: "5577",
+      millisecondsSinceEpoch: Date.now() - 1000,
+    };
+
+    const initialCache: ApiBasedRepositoryCache = {
+      shuttlesBySystemId: {
+        "1": [
+          initialCacheShuttle,
+        ]
+      },
+      shuttleByShuttleId: {
+        "5577": initialCacheShuttle,
+      }
+    };
+
+    const ttls: ApiBasedRepositoryMillisecondTTLs = {
+      shuttleByShuttleId: 100000,
+      shuttlesBySystemId: 100000,
+    };
+
+    const repository = new ApiBasedRepository(initialCache, ttls);
+    const shuttles = await repository.getShuttlesBySystemId("1");
+    expect(shuttles.length).toEqual(1);
+    expect(shuttles[0].id).toEqual(initialCacheShuttle.id);
   });
 
   test("getShuttlesBySystemId returns fresh data if expired", async () => {
+    updateGlobalFetchMockJson(genericShuttleDataBySystemId);
 
+    const initialCacheShuttle = {
+      coordinates: {
+        latitude: 33.791781,
+        longitude: -117.8589646,
+      },
+      name: "08",
+      routeId: "53966",
+      systemId: "1",
+      id: "5577",
+      millisecondsSinceEpoch: Date.now() - 100000,
+    };
+
+    const initialCache: ApiBasedRepositoryCache = {
+      shuttlesBySystemId: {
+        "1": [
+          initialCacheShuttle,
+        ]
+      },
+      shuttleByShuttleId: {
+        "5577": initialCacheShuttle,
+      }
+    };
+
+    const ttls: ApiBasedRepositoryMillisecondTTLs = {
+      shuttleByShuttleId: 1000,
+      shuttlesBySystemId: 1000,
+    };
+
+    const repository = new ApiBasedRepository(initialCache, ttls);
+    const shuttles = await repository.getShuttlesBySystemId("1");
+
+    expect(shuttles.length).toEqual(1);
+    expect(shuttles[0].id).toEqual("5577");
+    expect(shuttles[0].millisecondsSinceEpoch).not.toEqual(initialCacheShuttle.millisecondsSinceEpoch);
   });
-})
+
+  test("getShuttlesBySystemId returns fresh data if no seeded data", async () => {
+    updateGlobalFetchMockJson(genericShuttleDataBySystemId);
+
+    const repository = new ApiBasedRepository();
+    const shuttles = await repository.getShuttlesBySystemId("1");
+
+    expect(shuttles.length).toEqual(1);
+  });
+});