Added unit test for cc/authorize route that tests for successful authorization

build.gradle

@@ -27,6 +27,7 @@ dependencies {
     annotationProcessor 'org.projectlombok:lombok'
     implementation "io.springfox:springfox-boot-starter:3.0.0"
     compileOnly "io.springfox:springfox-swagger-ui:3.0.0"
+    testImplementation 'org.mockito:mockito-core:3.12.4'
 }
 
 test {

src/test/java/com/nisum/paymentvendorsimulator/creditcard/controllers/CreditCardControllerTest.java

+package com.nisum.paymentvendorsimulator.creditcard.controllers;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.MOCK)
+@AutoConfigureMockMvc
+class CreditCardControllerTest {
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void authorize() throws Exception {
+        mockMvc.perform(post("/api/cc/authorize")
+            .contentType(MediaType.APPLICATION_JSON)
+            .content("{ \"card\": { \"number\": \"4111111111111111\", \"expiryMonth\": \"03\", \"expiryYear\": \"2030\", \"cvc\": \"737\", \"holderName\": \"John Smith\" }, \"amount\": { \"value\": 1500, \"currency\": \"EUR\" }, \"reference\": \"YOUR_REFERENCE\", \"merchantAccount\": \"YOUR_MERCHANT_ACCOUNT\" }")
+            .accept(MediaType.APPLICATION_JSON))
+            .andExpect(status().is2xxSuccessful())
+            .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+            .andExpect(jsonPath("$.cardNumber").value("4111111111111111"))
+            .andExpect(jsonPath("$.cvv").value("737"));
+    }
+}