added integration test

build.gradle

@@ -54,8 +54,20 @@ dependencies {
 	testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.3.1'
 	compile 'com.h2database:h2:1.3.156'
 	// https://mvnrepository.com/artifact/io.rest-assured/rest-assured
-	testCompile group: 'io.rest-assured', name: 'rest-assured', version: '4.3.0'
-	//compile 'org.hamcrest:hamcrest-all:2.1'
+	//testCompile group: 'io.rest-assured', name: 'rest-assured', version: '4.3.0'
+	testCompile group: 'io.rest-assured', name: 'rest-assured', version: '4.0.0'
+	testCompile group: 'io.rest-assured', name: 'rest-assured-common', version: '4.0.0'
+	testCompile group: 'io.rest-assured', name: 'json-path', version: '4.0.0'
+	testCompile group: 'io.rest-assured', name: 'xml-path', version: '4.0.0'
+	compile group: 'com.google.code.gson', name: 'gson', version: '2.8.6'
+	// https://mvnrepository.com/artifact/com.github.tomakehurst/wiremock
+	testCompile "com.github.tomakehurst:wiremock-jre8:2.26.3"
+	//testCompile "org.springframework.cloud:spring-cloud-starter-contract-stub-runner"
+	testCompile group: 'org.springframework.cloud', name: 'spring-cloud-starter-contract-stub-runner', version: '2.2.2.RELEASE'
+
+
+
+
 
 }
 

src/test/java/com/nisum/offertransactionservice/controller/AbstractTestBase.java

+package com.nisum.offertransactionservice.controller;
+
+import com.github.tomakehurst.wiremock.WireMockServer;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public abstract class AbstractTestBase {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(AbstractTestBase.class);
+    protected final static int HTTP_ENDPOINT_PORT = 9090;
+    protected static WireMockServer mWireMockServer = new WireMockServer(HTTP_ENDPOINT_PORT);
+
+    @BeforeClass
+    public static  void setup() {
+        mWireMockServer.start();
+    }
+
+    @AfterClass
+    public static void tearDown() {
+        /* Stop the WireMock server. */
+        mWireMockServer.stop();
+    }
+
+}
+

src/test/java/com/nisum/offertransactionservice/controller/OfferTransactionControllerIntegrationTest.java

 package com.nisum.offertransactionservice.controller;
 
+import com.github.tomakehurst.wiremock.junit.WireMockRule;
 import com.nisum.offertransactionservice.dto.Item;
 import com.nisum.offertransactionservice.dto.OfferTransactionRequest;
-import io.restassured.RestAssured;
-import org.hamcrest.Matchers;
-import org.junit.jupiter.api.BeforeEach;
+import com.nisum.offertransactionservice.dto.OfferTransactionResponse;
+import org.junit.Before;
+import org.junit.Rule;
 import org.junit.jupiter.api.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.cloud.contract.wiremock.AutoConfigureWireMock;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.RequestEntity;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.junit4.SpringRunner;
 
+import java.net.URI;
 import java.util.ArrayList;
 import java.util.List;
 
-import static io.restassured.RestAssured.with;
+import static com.github.tomakehurst.wiremock.client.WireMock.*;
 
-@SpringBootTest
-public class OfferTransactionControllerIntegrationTest {
 
-    @BeforeEach
-    public void setup() {
-        RestAssured.baseURI = "http://localhost";
-        RestAssured.port = 7072;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment= SpringBootTest.WebEnvironment.DEFINED_PORT)
+@AutoConfigureWireMock
+public class OfferTransactionControllerIntegrationTest extends AbstractTestBase{
+
+    @Rule
+    public WireMockRule wireMockRule = new WireMockRule(7072);
+
+    @Autowired
+    private TestRestTemplate testRestTemplate;
+
+
+    @Before
+    public void setUp() {
+        mockForOfferTransactionCall();
     }
 
+    private void mockForOfferTransactionCall() {
+        mWireMockServer.stubFor(post(urlEqualTo("/offerTransactionCall"))
+                .willReturn(aResponse()
+                        .withStatus(200)
+                        .withHeader("Content-Type", "application/json")
+                        .withBodyFile("response.json")
+                ));
+    }
 
     @Test
     public void getOfferTransactionResponseTest() {
-        with().body(getOfferTransactionRequest())
-                .when()
-                .request("POST", "/offerTransactionCall")
-                .then()
-                .statusCode(200)
-                .body("offerTransactionCall.offerTransactionResponse.transactionId", Matchers.notNullValue());
+        URI uri = URI.create("http://localhost:7072/offerTransactionCall");
+        RequestEntity requestEntity = new RequestEntity(getOfferTransactionRequest(),HttpMethod.POST,uri);
+
+        ResponseEntity<OfferTransactionResponse> responseEntity = testRestTemplate.exchange("http://localhost:7072/offerTransactionCall", HttpMethod.POST,requestEntity,
+                new ParameterizedTypeReference<OfferTransactionResponse>(){}
+        );
+        OfferTransactionResponse offerTransactionResponse = responseEntity.getBody();
+        System.out.println(offerTransactionResponse);
+
     }
 
     private OfferTransactionRequest getOfferTransactionRequest() {

src/test/resources/response.json

+{
+  "hhid": "54321",
+  "transactionId": "b89dc898-6e33-4e54-bda8-ada7a80340bf",
+  "discountedItemList": [
+    {
+      "itemName": "coke",
+      "itemId": "12",
+      "price": 1800.0
+    },
+    {
+      "itemName": "coke",
+      "itemId": "12",
+      "price": 900.0
+    }
+  ]
+}
\ No newline at end of file