BAEL-2801 (#6665)

* BAEL-2727 Example Code

* BAEL-2801 Example code

* Change to use parent-boot-2

spring-mvc-simple-2/src/test/java/com/baeldung/AppContextIntegrationTest.java

@@ -0,0 +1,13 @@
+package com.baeldung;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import com.baeldung.spring.Application;
+
+@SpringBootTest(classes = Application.class)
+public class AppContextIntegrationTest {
+    @Test
+    public void contextLoads() {
+    }
+}

spring-mvc-simple-2/src/test/java/com/baeldung/headers/controller/ReadHeaderRestControllerIntegrationTest.java

@@ -0,0 +1,86 @@
+package com.baeldung.headers.controller;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.test.context.junit.jupiter.web.SpringJUnitWebConfig;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+
+import com.baeldung.spring.headers.controller.ReadHeaderRestController;
+
+@SpringJUnitWebConfig(ReadHeaderRestControllerIntegrationTest.Config.class)
+@ExtendWith(SpringExtension.class)
+public class ReadHeaderRestControllerIntegrationTest {
+    private static final Log LOG = LogFactory.getLog(ReadHeaderRestControllerIntegrationTest.class);
+
+    @Configuration
+    static class Config {
+
+    }
+
+    private MockMvc mockMvc;
+
+    @BeforeEach
+    public void setUp() {
+        mockMvc = MockMvcBuilders.standaloneSetup(new ReadHeaderRestController())
+            .build();
+    }
+
+    @Test
+    public void whenGetRequestSentToAllHeaders_thenStatusOkAndTextReturned() throws Exception {
+        mockMvc.perform(get("/listHeaders").header("my-header", "Test"))
+            .andExpect(status().isOk())
+            .andExpect(content().string("Listed 1 headers"));
+    }
+
+    @Test
+    public void whenGetRequestSentToMultiValue_thenStatusOkAndTextReturned() throws Exception {
+        mockMvc.perform(get("/multiValue").header("my-header", "ABC", "DEF", "GHI"))
+            .andExpect(status().isOk())
+            .andExpect(content().string("Listed 1 headers"));
+    }
+
+    @Test
+    public void whenGetRequestSentToGreeting_thenStatusOKAndGreetingReturned() throws Exception {
+        mockMvc.perform(get("/greeting").header("accept-language", "de"))
+            .andExpect(status().isOk())
+            .andExpect(content().string("Hallo!"));
+    }
+
+    @Test
+    public void whenGetRequestSentToDouble_thenStatusOKAndCorrectResultReturned() throws Exception {
+        mockMvc.perform(get("/double").header("my-number", 2))
+            .andExpect(status().isOk())
+            .andExpect(content().string("2 * 2 = 4"));
+    }
+
+    @Test
+    public void whenGetRequestSentToGetBaseUrl_thenStatusOkAndHostReturned() throws Exception {
+        mockMvc.perform(get("/getBaseUrl").header("host", "localhost:8080"))
+            .andExpect(status().isOk())
+            .andExpect(content().string("Base URL = http://localhost:8080"));
+    }
+
+    @Test
+    public void whenGetRequestSentToNonRequiredHeaderWithoutHeader_thenStatusOKAndMessageReturned() throws Exception {
+        mockMvc.perform(get("/nonRequiredHeader"))
+            .andExpect(status().isOk())
+            .andExpect(content().string("Was the optional header present? No!"));
+    }
+
+    @Test
+    public void whenGetRequestSentToDefaultWithoutHeader_thenStatusOKAndMessageReturned() throws Exception {
+        mockMvc.perform(get("/default"))
+            .andExpect(status().isOk())
+            .andExpect(content().string("Optional Header is 3600"));
+    }
+}