package helloworld; import org.junit.Test; import static org.junit.Assert.*; public class AppTest { @Test public void successfulResponse() { App app = new App(); GatewayResponse result = (GatewayResponse) app.handleRequest(null, null); assertEquals(result.getStatusCode(), 200); assertEquals(result.getHeaders().get("Content-Type"), "application/json"); String content = result.getBody(); assertNotNull(content); assertTrue(content.contains("\"message\"")); assertTrue(content.contains("\"hello world\"")); assertTrue(content.contains("\"location\"")); } }