add test setup for query resolvers

test/resolvers/QueryResolverTests.test.ts

@@ -0,0 +1,26 @@
+import { beforeEach, describe } from "@jest/globals";
+import { ApolloServer } from "@apollo/server";
+import { ServerContext } from "../../src/ServerContext";
+import { readFileSync } from "fs";
+import { MergedResolvers } from "../../src/MergedResolvers";
+import { UnoptimizedInMemoryRepository } from "../../src/repositories/UnoptimizedInMemoryRepository";
+import { loadTestData } from "../../src/loaders/loadTestData";
+
+// See Apollo documentation for integration test guide
+// https://www.apollographql.com/docs/apollo-server/testing/testing
+
+describe("QueryResolvers", () => {
+  let apolloServer: ApolloServer<ServerContext>;
+  let repository: UnoptimizedInMemoryRepository;
+
+  beforeEach(async () => {
+    const typeDefs = readFileSync("./schema.graphqls", "utf8");
+    apolloServer = new ApolloServer<ServerContext>({
+      typeDefs,
+      resolvers: MergedResolvers,
+    });
+
+    repository = new UnoptimizedInMemoryRepository();
+    await loadTestData(repository);
+  });
+});