add additional test cases for ETA data

test/repositories/ApiBasedRepositoryTests.ts

@@ -33,8 +33,38 @@ describe("getEtaForShuttleAndStopId", () => {
   test("getEtaForShuttleAndStopId returns null if API call is invalid", async () => {
 
   });
+
+  test("getEtasForShuttleAndStopId returns old data if not expired", async () => {
+
+  });
 });
 
 describe("getEtasForShuttleId", () => {
+  test("getEtasForShuttleId returns correct ETA data", async () => {
+
+  });
+
+  test("getEtasForShuttleId returns empty array if no data available", async () => {
+
+  });
+
+  test("getEtasForShuttleId returns old data if not expired", async () => {
+
+  });
+});
+
+describe("getEtasForStopId", () => {
+  test("getEtasForStopId returns correct ETA data", async () => {
+
+  });
+
+  test("getEtasForStopId returns empty array if no data available", async () => {
+
+  });
+
+  test("getEtasForStopId returns old data if not expired", async () => {
+
+  });
+});
+
 
-})