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Merge pull request #18 from bobocode-projects/GP-55_CreateViewResolverExercise
Gp-55 create view resolver exercise
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‎3-0-spring-framework/3-0-2-view-resolver/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>3-0-spring-framework</artifactId>
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<groupId>com.bobocode</groupId>
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<version>1.0-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>3-0-2-view-resolver</artifactId>
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<packaging>war</packaging>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.source>11</maven.compiler.source>
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<maven.compiler.target>11</maven.compiler.target>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-webmvc</artifactId>
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<version>5.3.6</version>
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</dependency>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<version>4.0.1</version>
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<scope>provided</scope>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<version>2.4.5</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-war-plugin</artifactId>
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<version>3.3.0</version>
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</plugin>
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</plugins>
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</build>
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</project>

‎3-0-spring-framework/3-0-2-view-resolver/src/main/java/com/bobocode/ViewResolverApp.java

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package com.bobocode;
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public class ViewResolverApp {
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public static void main(String[] args) {
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}
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}

‎3-0-spring-framework/3-0-2-view-resolver/src/main/java/com/bobocode/config/DispatcherServletConfig.java

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package com.bobocode.config;
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import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
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public class DispatcherServletConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
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@Override
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protected Class<?>[] getRootConfigClasses() {
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return new Class[0];
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}
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@Override
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protected Class<?>[] getServletConfigClasses() {
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return new Class[]{ResolverConfig.class};
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}
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@Override
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protected String[] getServletMappings() {
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return new String[]{"/"};
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}
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}

‎3-0-spring-framework/3-0-2-view-resolver/src/main/java/com/bobocode/config/ResolverConfig.java

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package com.bobocode.config;
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public class ResolverConfig {
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}

‎3-0-spring-framework/3-0-2-view-resolver/src/main/java/com/bobocode/controller/HelloJspController.java

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package com.bobocode.controller;
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public class HelloJspController {
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}

‎3-0-spring-framework/3-0-2-view-resolver/src/main/webapp/WEB-INF/views/index.jsp

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<html>
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<body>
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<h2>Hello World!</h2>
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</body>
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</html>

‎3-0-spring-framework/3-0-2-view-resolver/src/test/java/com/bobocode/HelloJspControllerTest.java

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package com.bobocode;
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import com.bobocode.config.ResolverConfig;
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import com.bobocode.controller.HelloJspController;
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import lombok.SneakyThrows;
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import org.junit.jupiter.api.*;
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import org.mockito.internal.configuration.ClassPathLoader;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
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import org.springframework.http.MediaType;
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import org.springframework.stereotype.Controller;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.web.servlet.MockMvc;
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import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
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import org.springframework.validation.support.BindingAwareModelMap;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import java.lang.reflect.Method;
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import java.util.Arrays;
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import static org.junit.jupiter.api.Assertions.*;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
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import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
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@WebMvcTest
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@ContextConfiguration(classes = ResolverConfig.class)
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@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
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public class HelloJspControllerTest {
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@Autowired
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private MockMvc mockMvc;
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private final HelloJspController helloJspController = new HelloJspController();
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@Test
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@Order(1)
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@DisplayName("Class marked as @Controller")
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void helloJspControllerClassMarkedAsController() {
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Controller controller = HelloJspController.class.getAnnotation(Controller.class);
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assertNotNull(controller);
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}
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@Test
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@Order(2)
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@DisplayName("Class marked as @RequestMapping")
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void helloJspControllerClassMarkedAsRequestMapping() {
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RequestMapping requestMapping = HelloJspController.class.getAnnotation(RequestMapping.class);
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assertNotNull(requestMapping);
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}
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@Test
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@Order(3)
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@DisplayName("Method that get hello page is marker with @GetMapping")
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void helloJspControllerHasMethodAnnotatedAsGetMapping() {
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boolean hasAnnotation = Arrays.stream(HelloJspController.class.getMethods())
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.anyMatch(method ->
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method.getAnnotation(GetMapping.class) != null
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);
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assertTrue(hasAnnotation);
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}
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@Test
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@Order(4)
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@SneakyThrows
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@DisplayName("Get method returns view name \"hello\"")
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void helloJspControllerMethodReturnsHelloViewName() {
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Method method = Arrays.stream(HelloJspController.class.getMethods())
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.filter(m -> m.getAnnotation(GetMapping.class) != null)
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.findFirst()
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.orElseThrow();
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var viewName = method.invoke(helloJspController);
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assertEquals("hello", viewName);
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}
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@Test
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@Order(5)
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@SneakyThrows
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@DisplayName("GET method is completed ✅")
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void getRequestShouldReturnStatusOkAndCorrectData() {
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mockMvc.perform(get("/"))
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.andExpect(status().isOk())
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.andExpect(view().name("hello"))
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.andExpect(MockMvcResultMatchers.forwardedUrl("/WEB-INF/views/hello.jsp"));
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}
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}

‎3-0-spring-framework/3-0-2-view-resolver/src/test/java/com/bobocode/ViewResolverTest.java

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package com.bobocode;
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import com.bobocode.config.ResolverConfig;
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import lombok.SneakyThrows;
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import org.junit.jupiter.api.*;
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import org.mockito.Mockito;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.web.servlet.MockMvc;
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import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
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import org.springframework.web.servlet.config.annotation.EnableWebMvc;
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import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
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import java.lang.reflect.Method;
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import static org.junit.jupiter.api.Assertions.*;
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import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
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import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
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import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
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@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
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public class ViewResolverTest {
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private final ResolverConfig config = new ResolverConfig();
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private final ViewResolverRegistry resolverRegistry = Mockito.mock(ViewResolverRegistry.class);
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@Test
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@Order(1)
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@DisplayName("Class is marked as @Configuration")
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void classIsMarkedAsConfiguration() {
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Configuration configuration = ResolverConfig.class.getAnnotation(Configuration.class);
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assertNotNull(configuration);
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}
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@Test
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@Order(2)
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@DisplayName("Configuration Class has annotation @EnableWebMvc")
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void classAnnotatedWithEnableWebMvc() {
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EnableWebMvc enableWebMvc = ResolverConfig.class.getAnnotation(EnableWebMvc.class);
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assertNotNull(enableWebMvc);
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}
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@Test
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@Order(3)
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@DisplayName("Configuration Class has annotation @ComponentScan")
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void classAnnotatedWithComponentScan() {
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ComponentScan componentScan = ResolverConfig.class.getAnnotation(ComponentScan.class);
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assertNotNull(componentScan);
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}
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@Test
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@Order(4)
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@DisplayName("ComponentScan packages are indicated")
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void ComponentScanHasIndicatedPackages() {
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ComponentScan componentScan = ResolverConfig.class.getAnnotation(ComponentScan.class);
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assertEquals("com.bobocode", componentScan.basePackages()[0]);
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}
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@Test
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@Order(5)
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@DisplayName("Config class implements WebMvcConfigurer interface")
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void isConfigClassImplementsWebMvcConfigurerInterface() {
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assertTrue(WebMvcConfigurer.class.isAssignableFrom(ResolverConfig.class));
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}
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@SneakyThrows
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@Test
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@Order(6)
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@DisplayName("Config class overrides configureViewResolvers method")
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void isConfigurationClassContainsViewResolverMethod() {
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Method configureViewResolvers = ResolverConfig.class.getMethod("configureViewResolvers", ViewResolverRegistry.class);
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assertNotNull(configureViewResolvers);
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}
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@Test
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@Order(7)
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@SneakyThrows
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@DisplayName("View resolver registry has correct prefix and suffix")
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void viewResolverRegistryHasCorrectPrefixAndSuffix() {
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config.getClass().getMethod("configureViewResolvers", ViewResolverRegistry.class).invoke(config, resolverRegistry);
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Mockito.verify(resolverRegistry).jsp("/WEB-INF/views/", ".jsp");
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}
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}

‎3-0-spring-framework/pom.xml

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<module>3-0-0-hello-spring-framework</module>
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<module>3-0-1-hello-spring-mvc</module>
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<module>3-1-1-dispatcher-servlet-initializer</module>
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<module>3-0-2-view-resolver</module>
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<module>3-2-1-account-rest-api</module>
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</modules>
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