JAVA-84: Move articles out of spring-boot part 1 (#9950)

* JAVA-84: Moved 1 article to spring-boot-actuator

* JAVA-84: Moved 2 articles to spring-boot-mvc

* JAVA-84: README changes for spring-boot module

* JAVA-84: Moved classes to com.baeldung pkg to correct compilation issue

spring-boot-modules/spring-boot-mvc/src/test/java/com/baeldung/SpringContextLiveTest.java

@@ -0,0 +1,19 @@
+package com.baeldung;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+import com.baeldung.springbootannotations.MySQLAutoconfiguration;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = MySQLAutoconfiguration.class)
+@WebAppConfiguration
+public class SpringContextLiveTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-boot-modules/spring-boot-mvc/src/test/java/com/baeldung/SpringContextTest.java

@@ -0,0 +1,17 @@
+package com.baeldung;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.springbootmvc.SpringBootMvcApplication;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = SpringBootMvcApplication.class)
+public class SpringContextTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-boot-modules/spring-boot-mvc/src/test/java/com/baeldung/annotation/servletcomponentscan/SpringBootWithServletComponentIntegrationTest.java

@@ -0,0 +1,59 @@
+package com.baeldung.annotation.servletcomponentscan;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import javax.servlet.FilterRegistration;
+import javax.servlet.ServletContext;
+
+import org.junit.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.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = SpringBootAnnotatedApp.class)
+public class SpringBootWithServletComponentIntegrationTest {
+
+    @Autowired
+    private ServletContext servletContext;
+
+    @Test
+    public void givenServletContext_whenAccessAttrs_thenFoundAttrsPutInServletListner() {
+        assertNotNull(servletContext);
+        assertNotNull(servletContext.getAttribute("servlet-context-attr"));
+        assertEquals("test", servletContext.getAttribute("servlet-context-attr"));
+    }
+
+    @Test
+    public void givenServletContext_whenCheckHelloFilterMappings_thenCorrect() {
+        assertNotNull(servletContext);
+        FilterRegistration filterRegistration = servletContext.getFilterRegistration("hello filter");
+
+        assertNotNull(filterRegistration);
+        assertTrue(filterRegistration.getServletNameMappings().contains("echo servlet"));
+    }
+
+    @Autowired
+    private TestRestTemplate restTemplate;
+
+    @Test
+    public void givenServletFilter_whenGetHello_thenRequestFiltered() {
+        ResponseEntity<String> responseEntity = this.restTemplate.getForEntity("/hello", String.class);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals("filtering hello", responseEntity.getBody());
+    }
+
+    @Test
+    public void givenFilterAndServlet_whenPostEcho_thenEchoFiltered() {
+        ResponseEntity<String> responseEntity = this.restTemplate.postForEntity("/echo", "echo", String.class);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals("filtering echo", responseEntity.getBody());
+    }
+
+}

spring-boot-modules/spring-boot-mvc/src/test/java/com/baeldung/annotation/servletcomponentscan/SpringBootWithoutServletComponentIntegrationTest.java

@@ -0,0 +1,49 @@
+package com.baeldung.annotation.servletcomponentscan;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+import javax.servlet.FilterRegistration;
+import javax.servlet.ServletContext;
+
+import org.junit.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.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = SpringBootPlainApp.class)
+public class SpringBootWithoutServletComponentIntegrationTest {
+
+    @Autowired
+    private ServletContext servletContext;
+
+    @Autowired
+    private TestRestTemplate restTemplate;
+
+    @Test
+    public void givenServletContext_whenAccessAttrs_thenNotFound() {
+        assertNull(servletContext.getAttribute("servlet-context-attr"));
+    }
+
+    @Test
+    public void givenServletFilter_whenGetHello_thenEndpointNotFound() {
+        ResponseEntity<String> responseEntity = this.restTemplate.getForEntity("/hello", String.class);
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+    }
+
+    @Test
+    public void givenServletContext_whenCheckFilterMappings_thenEmpty() {
+        assertNotNull(servletContext);
+        FilterRegistration filterRegistration = servletContext.getFilterRegistration("hello filter");
+
+        assertNull(filterRegistration);
+    }
+
+}