feat: override spring bean

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/Endpoint.java

@@ -0,0 +1,19 @@
+package com.baeldung.overridebean;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class Endpoint {
+
+    private final Service service;
+
+    public Endpoint(Service service) {
+        this.service = service;
+    }
+
+    @GetMapping("/hello")
+    public String helloWorldEndpoint() {
+        return service.helloWorld();
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/Service.java

@@ -0,0 +1,5 @@
+package com.baeldung.overridebean;
+
+public interface Service {
+    String helloWorld();
+}

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/ServiceImpl.java

@@ -0,0 +1,8 @@
+package com.baeldung.overridebean;
+
+public class ServiceImpl implements Service {
+
+    public String helloWorld() {
+        return "hello world";
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/basic/Application.java

@@ -0,0 +1,14 @@
+package com.baeldung.overridebean.basic;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.security.oauth2.resource.servlet.OAuth2ResourceServerAutoConfiguration;
+import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
+
+@SpringBootApplication(exclude = { SecurityAutoConfiguration.class, OAuth2ResourceServerAutoConfiguration.class })
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/basic/Config.java

@@ -0,0 +1,16 @@
+package com.baeldung.overridebean.basic;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.overridebean.Service;
+import com.baeldung.overridebean.ServiceImpl;
+
+@Configuration
+public class Config {
+
+    @Bean
+    public Service helloWorld() {
+        return new ServiceImpl();
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/conditional/Application.java

@@ -0,0 +1,14 @@
+package com.baeldung.overridebean.conditional;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.security.oauth2.resource.servlet.OAuth2ResourceServerAutoConfiguration;
+import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
+
+@SpringBootApplication(exclude = { SecurityAutoConfiguration.class, OAuth2ResourceServerAutoConfiguration.class })
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/conditional/ConditionalConfig.java

@@ -0,0 +1,18 @@
+package com.baeldung.overridebean.conditional;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import com.baeldung.overridebean.Service;
+import com.baeldung.overridebean.ServiceImpl;
+
+@Configuration
+public class ConditionalConfig {
+
+    @Bean
+    @ConditionalOnProperty(name = "service.stub", havingValue = "false")
+    public Service helloWorld() {
+        return new ServiceImpl();
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/profile/Application.java

@@ -0,0 +1,14 @@
+package com.baeldung.overridebean.profile;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.security.oauth2.resource.servlet.OAuth2ResourceServerAutoConfiguration;
+import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
+
+@SpringBootApplication(exclude = { SecurityAutoConfiguration.class, OAuth2ResourceServerAutoConfiguration.class })
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/main/java/com/baeldung/overridebean/profile/ProfileConfig.java

@@ -0,0 +1,18 @@
+package com.baeldung.overridebean.profile;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Profile;
+
+import com.baeldung.overridebean.Service;
+import com.baeldung.overridebean.ServiceImpl;
+
+@Configuration
+@Profile("prod")
+public class ProfileConfig {
+
+    @Bean
+    public Service helloWorld() {
+        return new ServiceImpl();
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/main/resources/application.properties

@@ -1,2 +1,3 @@
 keycloak.enabled=true
 spring.security.oauth2.resourceserver.jwt.issuer-uri=http://localhost:8180/auth/realms/baeldung-api
+service.stub=false

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/conditional/ConditionIntegrationTest.java

@@ -0,0 +1,29 @@
+package com.baeldung.overridebean.conditional;
+
+import static org.hamcrest.Matchers.containsString;
+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.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.test.web.servlet.MockMvc;
+
+import com.baeldung.overridebean.Endpoint;
+
+@SpringBootTest(classes = { Application.class, ConditionalConfig.class, Endpoint.class, ConditionalTestConfig.class }, properties = "service.stub=true")
+@AutoConfigureMockMvc
+class ConditionIntegrationTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void givenConditionalConfig_whenServiceStubIsTrue_thenStubOk() throws Exception {
+        this.mockMvc.perform(get("/hello"))
+          .andExpect(status().isOk())
+          .andExpect(content().string(containsString("hello conditional stub")));
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/conditional/ConditionalStub.java

@@ -0,0 +1,10 @@
+package com.baeldung.overridebean.conditional;
+
+import com.baeldung.overridebean.Service;
+
+public class ConditionalStub implements Service {
+
+    public String helloWorld() {
+        return "hello conditional stub";
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/conditional/ConditionalTestConfig.java

@@ -0,0 +1,17 @@
+package com.baeldung.overridebean.conditional;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.context.annotation.Bean;
+
+import com.baeldung.overridebean.Service;
+
+@TestConfiguration
+public class ConditionalTestConfig {
+
+    @ConditionalOnProperty(name = "service.stub", havingValue = "true")
+    @Bean
+    public Service helloWorld() {
+        return new ConditionalStub();
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/mockbean/MockBeanIntegrationTest.java

@@ -0,0 +1,37 @@
+package com.baeldung.overridebean.mockbean;
+
+import static org.hamcrest.Matchers.containsString;
+import static org.mockito.Mockito.when;
+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.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.boot.test.mock.mockito.MockBean;
+import org.springframework.test.web.servlet.MockMvc;
+
+import com.baeldung.overridebean.Endpoint;
+import com.baeldung.overridebean.Service;
+import com.baeldung.overridebean.basic.Application;
+
+@SpringBootTest(classes = { Application.class, Endpoint.class })
+@AutoConfigureMockMvc
+class MockBeanIntegrationTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    private Service serviceExample;
+
+    @Test
+    void givenServiceMockBean_whenGetHelloEndpoint_thenMockOk() throws Exception {
+        when(serviceExample.helloWorld()).thenReturn("hello mock bean");
+        this.mockMvc.perform(get("/hello"))
+          .andExpect(status().isOk())
+          .andExpect(content().string(containsString("hello mock bean")));
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/overridebeandefinition/OverrideBeanDefinitionIntegrationTest.java

@@ -0,0 +1,31 @@
+package com.baeldung.overridebean.overridebeandefinition;
+
+import static org.hamcrest.Matchers.containsString;
+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.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.test.web.servlet.MockMvc;
+
+import com.baeldung.overridebean.Endpoint;
+import com.baeldung.overridebean.basic.Application;
+import com.baeldung.overridebean.basic.Config;
+
+@SpringBootTest(classes = { Application.class, Config.class, Endpoint.class, OverrideBeanDefinitionTestConfig.class }, properties = "spring.main.allow-bean-definition-overriding=true")
+@AutoConfigureMockMvc
+class OverrideBeanDefinitionIntegrationTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void givenNoProfile_whenAllowBeanDefinitionOverriding_thenStubOk() throws Exception {
+        this.mockMvc.perform(get("/hello"))
+          .andExpect(status().isOk())
+          .andExpect(content().string(containsString("hello no profile stub")));
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/overridebeandefinition/OverrideBeanDefinitionServiceStub.java

@@ -0,0 +1,10 @@
+package com.baeldung.overridebean.overridebeandefinition;
+
+import com.baeldung.overridebean.Service;
+
+public class OverrideBeanDefinitionServiceStub implements Service {
+
+    public String helloWorld() {
+        return "hello no profile stub";
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/overridebeandefinition/OverrideBeanDefinitionTestConfig.java

@@ -0,0 +1,15 @@
+package com.baeldung.overridebean.overridebeandefinition;
+
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.context.annotation.Bean;
+
+import com.baeldung.overridebean.Service;
+
+@TestConfiguration
+public class OverrideBeanDefinitionTestConfig {
+
+    @Bean
+    public Service helloWorld() {
+        return new OverrideBeanDefinitionServiceStub();
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/primary/PrimaryIntegrationTest.java

@@ -0,0 +1,31 @@
+package com.baeldung.overridebean.primary;
+
+import static org.hamcrest.Matchers.containsString;
+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.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.test.web.servlet.MockMvc;
+
+import com.baeldung.overridebean.Endpoint;
+import com.baeldung.overridebean.basic.Application;
+import com.baeldung.overridebean.basic.Config;
+
+@SpringBootTest(classes = { Application.class, Config.class, Endpoint.class, PrimaryTestConfig.class })
+@AutoConfigureMockMvc
+class PrimaryIntegrationTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void givenTestConfiguration_whenPrimaryBeanIsDefined_thenStubOk() throws Exception {
+        this.mockMvc.perform(get("/hello"))
+          .andExpect(status().isOk())
+          .andExpect(content().string(containsString("hello primary stub")));
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/primary/PrimaryServiceStub.java

@@ -0,0 +1,10 @@
+package com.baeldung.overridebean.primary;
+
+import com.baeldung.overridebean.Service;
+
+public class PrimaryServiceStub implements Service {
+
+    public String helloWorld() {
+        return "hello primary stub";
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/primary/PrimaryTestConfig.java

@@ -0,0 +1,17 @@
+package com.baeldung.overridebean.primary;
+
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Primary;
+
+import com.baeldung.overridebean.Service;
+
+@TestConfiguration
+public class PrimaryTestConfig {
+
+    @Primary
+    @Bean("service.stub")
+    public Service helloWorld() {
+        return new PrimaryServiceStub();
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/profile/ProfileIntegrationTest.java

@@ -0,0 +1,29 @@
+package com.baeldung.overridebean.profile;
+
+import static org.hamcrest.Matchers.containsString;
+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.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.test.web.servlet.MockMvc;
+
+import com.baeldung.overridebean.Endpoint;
+
+@SpringBootTest(classes = { Application.class, ProfileConfig.class, Endpoint.class, ProfileTestConfig.class })
+@AutoConfigureMockMvc
+class ProfileIntegrationTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void givenConfigurationWithProfile_whenNoProductionProfileIsActive_thenStubOk() throws Exception {
+        this.mockMvc.perform(get("/hello"))
+          .andExpect(status().isOk())
+          .andExpect(content().string(containsString("hello profile stub")));
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/profile/ProfileServiceStub.java

@@ -0,0 +1,10 @@
+package com.baeldung.overridebean.profile;
+
+import com.baeldung.overridebean.Service;
+
+public class ProfileServiceStub implements Service {
+
+    public String helloWorld() {
+        return "hello profile stub";
+    }
+}

spring-boot-modules/spring-boot-testing-2/src/test/java/com/baeldung/overridebean/profile/ProfileTestConfig.java

@@ -0,0 +1,15 @@
+package com.baeldung.overridebean.profile;
+
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.context.annotation.Bean;
+
+import com.baeldung.overridebean.Service;
+
+@TestConfiguration
+public class ProfileTestConfig {
+
+    @Bean
+    public Service helloWorld() {
+        return new ProfileServiceStub();
+    }
+}