sample json validation

ref #17

src/tests/firsttest.spec.ts

@@ -12,3 +12,11 @@ describe('GET /', () => {
 		expect(res.status).toEqual(404);
 	});
 });
+describe('GET /api/teams', () => {
+	it('is http 200 && is json', async () => {
+		const res = await axios.get('http://localhost:4010/api/teams', { validateStatus: undefined });
+		console.log(res.headers);
+		expect(res.status).toEqual(200);
+		expect(res.headers['content-type']).toContain("application/json")
+	});
+});