add test cases for eta resolver tests

test/resolvers/EtaResolverTests.test.ts

@@ -0,0 +1,55 @@
+import { beforeEach, describe, it } from "@jest/globals";
+import { ApolloServer } from "@apollo/server";
+import { UnoptimizedInMemoryRepository } from "../../src/repositories/UnoptimizedInMemoryRepository";
+import { setUpTestServer } from "../testHelpers/apolloSetupHelpers";
+import { ServerContext } from "../../src/ServerContext";
+
+describe("EtaResolvers", () => {
+  let testServer: ApolloServer<ServerContext>;
+  let repository: UnoptimizedInMemoryRepository;
+
+  beforeEach(async () => {
+    testServer = setUpTestServer();
+    repository = new UnoptimizedInMemoryRepository();
+  });
+
+  describe("stop", () => {
+    const query = `
+    query GetETAStop($systemId: ID!, $shuttleId: ID!) {
+      system(id: $systemId) {
+        shuttle(id: $shuttleId) {
+          etas {
+            stop {
+              id
+            }
+          }
+        }
+      }
+    }
+    `;
+
+    it("returns the associated stop if it exists", async () => {
+
+    });
+  });
+
+  describe("shuttle", () => {
+    const query = `
+    query GetETAShuttle($systemId: ID!, $shuttleId: ID!) {
+      system(id: $systemId) {
+        shuttle(id: $shuttleId) {
+          etas {
+            shuttle {
+              id
+            }
+          }
+        }
+      }
+    }
+    `;
+
+    it("returns the associated shuttle if it exists", async () => {
+
+    });
+  });
+});