Add tests (#38)

* add GA

* add Jest

* Add mutation and Query tests.

* Fix URL

* add teardown

.github/workflows/test.yml

@@ -0,0 +1,22 @@
+name: Run Tests
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Setup Docker Compose
+      run: docker-compose -f docker-compose.test.yml build
+
+    - name: Run Tests
+      run: docker-compose -f docker-compose.test.yml run app

Dockerfile

@@ -0,0 +1,10 @@
+FROM node:20
+
+WORKDIR /app
+
+COPY package.json yarn.lock ./
+RUN yarn install
+
+COPY . .
+
+CMD ["yarn", "test"]

docker-compose.test.yml

@@ -0,0 +1,22 @@
+version: '3'
+services:
+  app:
+    build: .
+    depends_on:
+      - dgraph-alpha
+    environment:
+    - RUNNING_JEST=true
+  dgraph-zero:
+    image: dgraph/dgraph:latest
+    ports:
+      - "5080:5080"
+    command: dgraph zero --my dgraph-zero:5080
+
+  dgraph-alpha:
+    image: dgraph/dgraph:latest
+    ports:
+      - "8080:8080"
+      - "9080:9080"
+    command: dgraph alpha --my dgraph-alpha:7080 --zero dgraph-zero:5080 --security "whitelist=0.0.0.0/0"
+    depends_on:
+      - dgraph-zero

index.ts

@@ -3,27 +3,27 @@ import { ApolloServer, gql } from 'apollo-server-express';
 import resolvers from './src/resolvers/index.ts';
 import schemaDefinition from './src/schema/schemaAST.ts';
 
-const defs = schemaDefinition()
+const defs = schemaDefinition();
 const app = express();
 
 const typeDefs = gql`
 	${defs[0]}
 `;
 
-const _resolvers = resolvers(defs[1])[0]
+const _resolvers = resolvers(defs[1])[0];
 
-const server = new ApolloServer({ typeDefs, resolvers :_resolvers });
+const server = new ApolloServer({ typeDefs, resolvers: _resolvers });
 
-async function startServer() {
+export async function startServer() {
 	await server.start();
 	server.applyMiddleware({ app, cors: false });
-}
-
-startServer().catch(err => console.error(err));
+	const port = 4001;
 
-const port = 4001;
+	app.listen(port, () => {
+		console.log(`🚀 Server ready at http://localhost:${port}${server.graphqlPath}`),
+			console.log('Use postman to test the API');
+	});
+}
 
-app.listen(port, () => {
-	console.log(`🚀 Server ready at http://localhost:${port}${server.graphqlPath}`),
-		console.log('Use postman to test the API');
-});
+// TODO: Fix this later
+// startServer().catch(err => console.error(err));

jest.config.js

@@ -0,0 +1,11 @@
+module.exports = {
+    roots: ['<rootDir>/src/__tests__'],
+    testTimeout: 60000,
+    testMatch: ["**/__tests__/**/*.[jt]s?(x)", "**/?(*.)+(spec|test).[jt]s?(x)"],
+    transform: {
+      '^.+\\.tsx?$': 'ts-jest',
+    },
+    globalSetup: '<rootDir>/src/__tests__/setup.ts',
+    globalTeardown: '<rootDir>/src/__tests__/teardown.ts',
+    testPathIgnorePatterns: ["<rootDir>/src/__tests__/setup.ts", "<rootDir>/src/__tests__/teardown.ts"],
+  };