Merge branch '2.3.x' into 2.4.x

Closes gh-25861

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/validation/ValidationAutoConfigurationTests.java

 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,12 +24,14 @@ import javax.validation.Validator;
 import javax.validation.constraints.Min;
 import javax.validation.constraints.Size;
 
-import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
 
 import org.springframework.beans.factory.config.BeanPostProcessor;
+import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.boot.autoconfigure.AutoConfigurations;
 import org.springframework.boot.autoconfigure.validation.ValidationAutoConfigurationTests.CustomValidatorConfiguration.TestBeanPostProcessor;
-import org.springframework.boot.test.util.TestPropertyValues;
+import org.springframework.boot.test.context.assertj.AssertableApplicationContext;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.boot.validation.beanvalidation.MethodValidationExcludeFilter;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;
@@ -55,171 +57,143 @@ import static org.mockito.Mockito.mock;
  */
 class ValidationAutoConfigurationTests {
 
-	private AnnotationConfigApplicationContext context;
-
-	@AfterEach
-	void close() {
-		if (this.context != null) {
-			this.context.close();
-		}
-	}
+	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner(
+			AnnotationConfigApplicationContext::new)
+					.withConfiguration(AutoConfigurations.of(ValidationAutoConfiguration.class));
 
 	@Test
 	void validationAutoConfigurationShouldConfigureDefaultValidator() {
-		load(Config.class);
-		String[] jsrValidatorNames = this.context.getBeanNamesForType(Validator.class);
-		String[] springValidatorNames = this.context
-				.getBeanNamesForType(org.springframework.validation.Validator.class);
-		assertThat(jsrValidatorNames).containsExactly("defaultValidator");
-		assertThat(springValidatorNames).containsExactly("defaultValidator");
-		Validator jsrValidator = this.context.getBean(Validator.class);
-		org.springframework.validation.Validator springValidator = this.context
-				.getBean(org.springframework.validation.Validator.class);
-		assertThat(jsrValidator).isInstanceOf(LocalValidatorFactoryBean.class);
-		assertThat(jsrValidator).isEqualTo(springValidator);
-		assertThat(isPrimaryBean("defaultValidator")).isTrue();
+		this.contextRunner.run((context) -> {
+			assertThat(context.getBeanNamesForType(Validator.class)).containsExactly("defaultValidator");
+			assertThat(context.getBeanNamesForType(org.springframework.validation.Validator.class))
+					.containsExactly("defaultValidator");
+			assertThat(context.getBean(Validator.class)).isInstanceOf(LocalValidatorFactoryBean.class)
+					.isEqualTo(context.getBean(org.springframework.validation.Validator.class));
+			assertThat(isPrimaryBean(context, "defaultValidator")).isTrue();
+		});
 	}
 
 	@Test
 	void validationAutoConfigurationWhenUserProvidesValidatorShouldBackOff() {
-		load(UserDefinedValidatorConfig.class);
-		String[] jsrValidatorNames = this.context.getBeanNamesForType(Validator.class);
-		String[] springValidatorNames = this.context
-				.getBeanNamesForType(org.springframework.validation.Validator.class);
-		assertThat(jsrValidatorNames).containsExactly("customValidator");
-		assertThat(springValidatorNames).containsExactly("customValidator");
-		org.springframework.validation.Validator springValidator = this.context
-				.getBean(org.springframework.validation.Validator.class);
-		Validator jsrValidator = this.context.getBean(Validator.class);
-		assertThat(jsrValidator).isInstanceOf(OptionalValidatorFactoryBean.class);
-		assertThat(jsrValidator).isEqualTo(springValidator);
-		assertThat(isPrimaryBean("customValidator")).isFalse();
+		this.contextRunner.withUserConfiguration(UserDefinedValidatorConfig.class).run((context) -> {
+			assertThat(context.getBeanNamesForType(Validator.class)).containsExactly("customValidator");
+			assertThat(context.getBeanNamesForType(org.springframework.validation.Validator.class))
+					.containsExactly("customValidator");
+			assertThat(context.getBean(Validator.class)).isInstanceOf(OptionalValidatorFactoryBean.class)
+					.isEqualTo(context.getBean(org.springframework.validation.Validator.class));
+			assertThat(isPrimaryBean(context, "customValidator")).isFalse();
+		});
 	}
 
 	@Test
 	void validationAutoConfigurationWhenUserProvidesDefaultValidatorShouldNotEnablePrimary() {
-		load(UserDefinedDefaultValidatorConfig.class);
-		String[] jsrValidatorNames = this.context.getBeanNamesForType(Validator.class);
-		String[] springValidatorNames = this.context
-				.getBeanNamesForType(org.springframework.validation.Validator.class);
-		assertThat(jsrValidatorNames).containsExactly("defaultValidator");
-		assertThat(springValidatorNames).containsExactly("defaultValidator");
-		assertThat(isPrimaryBean("defaultValidator")).isFalse();
+		this.contextRunner.withUserConfiguration(UserDefinedDefaultValidatorConfig.class).run((context) -> {
+			assertThat(context.getBeanNamesForType(Validator.class)).containsExactly("defaultValidator");
+			assertThat(context.getBeanNamesForType(org.springframework.validation.Validator.class))
+					.containsExactly("defaultValidator");
+			assertThat(isPrimaryBean(context, "defaultValidator")).isFalse();
+		});
 	}
 
 	@Test
 	void validationAutoConfigurationWhenUserProvidesJsrValidatorShouldBackOff() {
-		load(UserDefinedJsrValidatorConfig.class);
-		String[] jsrValidatorNames = this.context.getBeanNamesForType(Validator.class);
-		String[] springValidatorNames = this.context
-				.getBeanNamesForType(org.springframework.validation.Validator.class);
-		assertThat(jsrValidatorNames).containsExactly("customValidator");
-		assertThat(springValidatorNames).isEmpty();
-		assertThat(isPrimaryBean("customValidator")).isFalse();
+		this.contextRunner.withUserConfiguration(UserDefinedJsrValidatorConfig.class).run((context) -> {
+			assertThat(context.getBeanNamesForType(Validator.class)).containsExactly("customValidator");
+			assertThat(context.getBeanNamesForType(org.springframework.validation.Validator.class)).isEmpty();
+			assertThat(isPrimaryBean(context, "customValidator")).isFalse();
+		});
 	}
 
 	@Test
 	void validationAutoConfigurationWhenUserProvidesSpringValidatorShouldCreateJsrValidator() {
-		load(UserDefinedSpringValidatorConfig.class);
-		String[] jsrValidatorNames = this.context.getBeanNamesForType(Validator.class);
-		String[] springValidatorNames = this.context
-				.getBeanNamesForType(org.springframework.validation.Validator.class);
-		assertThat(jsrValidatorNames).containsExactly("defaultValidator");
-		assertThat(springValidatorNames).containsExactly("customValidator", "anotherCustomValidator",
-				"defaultValidator");
-		Validator jsrValidator = this.context.getBean(Validator.class);
-		org.springframework.validation.Validator springValidator = this.context
-				.getBean(org.springframework.validation.Validator.class);
-		assertThat(jsrValidator).isInstanceOf(LocalValidatorFactoryBean.class);
-		assertThat(jsrValidator).isEqualTo(springValidator);
-		assertThat(isPrimaryBean("defaultValidator")).isTrue();
+		this.contextRunner.withUserConfiguration(UserDefinedSpringValidatorConfig.class).run((context) -> {
+			assertThat(context.getBeanNamesForType(Validator.class)).containsExactly("defaultValidator");
+			assertThat(context.getBeanNamesForType(org.springframework.validation.Validator.class))
+					.containsExactly("customValidator", "anotherCustomValidator", "defaultValidator");
+			assertThat(context.getBean(Validator.class)).isInstanceOf(LocalValidatorFactoryBean.class)
+					.isEqualTo(context.getBean(org.springframework.validation.Validator.class));
+			assertThat(isPrimaryBean(context, "defaultValidator")).isTrue();
+		});
 	}
 
 	@Test
 	void validationAutoConfigurationWhenUserProvidesPrimarySpringValidatorShouldRemovePrimaryFlag() {
-		load(UserDefinedPrimarySpringValidatorConfig.class);
-		String[] jsrValidatorNames = this.context.getBeanNamesForType(Validator.class);
-		String[] springValidatorNames = this.context
-				.getBeanNamesForType(org.springframework.validation.Validator.class);
-		assertThat(jsrValidatorNames).containsExactly("defaultValidator");
-		assertThat(springValidatorNames).containsExactly("customValidator", "anotherCustomValidator",
-				"defaultValidator");
-		Validator jsrValidator = this.context.getBean(Validator.class);
-		org.springframework.validation.Validator springValidator = this.context
-				.getBean(org.springframework.validation.Validator.class);
-		assertThat(jsrValidator).isInstanceOf(LocalValidatorFactoryBean.class);
-		assertThat(springValidator).isEqualTo(this.context.getBean("anotherCustomValidator"));
-		assertThat(isPrimaryBean("defaultValidator")).isFalse();
+		this.contextRunner.withUserConfiguration(UserDefinedPrimarySpringValidatorConfig.class).run((context) -> {
+			assertThat(context.getBeanNamesForType(Validator.class)).containsExactly("defaultValidator");
+			assertThat(context.getBeanNamesForType(org.springframework.validation.Validator.class))
+					.containsExactly("customValidator", "anotherCustomValidator", "defaultValidator");
+			assertThat(context.getBean(Validator.class)).isInstanceOf(LocalValidatorFactoryBean.class);
+			assertThat(context.getBean(org.springframework.validation.Validator.class))
+					.isEqualTo(context.getBean("anotherCustomValidator"));
+			assertThat(isPrimaryBean(context, "defaultValidator")).isFalse();
+		});
 	}
 
 	@Test
 	void validationIsEnabled() {
-		load(SampleService.class);
-		assertThat(this.context.getBeansOfType(Validator.class)).hasSize(1);
-		SampleService service = this.context.getBean(SampleService.class);
-		service.doSomething("Valid");
-		assertThatExceptionOfType(ConstraintViolationException.class).isThrownBy(() -> service.doSomething("KO"));
+		this.contextRunner.withUserConfiguration(SampleService.class).run((context) -> {
+			assertThat(context.getBeansOfType(Validator.class)).hasSize(1);
+			SampleService service = context.getBean(SampleService.class);
+			service.doSomething("Valid");
+			assertThatExceptionOfType(ConstraintViolationException.class).isThrownBy(() -> service.doSomething("KO"));
+		});
 	}
 
 	@Test
 	void classCanBeExcludedFromValidation() {
-		load(ExcludedServiceConfiguration.class);
-		assertThat(this.context.getBeansOfType(Validator.class)).hasSize(1);
-		ExcludedService service = this.context.getBean(ExcludedService.class);
-		service.doSomething("Valid");
-		assertThatNoException().isThrownBy(() -> service.doSomething("KO"));
+		this.contextRunner.withUserConfiguration(ExcludedServiceConfiguration.class).run((context) -> {
+			assertThat(context.getBeansOfType(Validator.class)).hasSize(1);
+			ExcludedService service = context.getBean(ExcludedService.class);
+			service.doSomething("Valid");
+			assertThatNoException().isThrownBy(() -> service.doSomething("KO"));
+		});
 	}
 
 	@Test
 	void validationUsesCglibProxy() {
-		load(DefaultAnotherSampleService.class);
-		assertThat(this.context.getBeansOfType(Validator.class)).hasSize(1);
-		DefaultAnotherSampleService service = this.context.getBean(DefaultAnotherSampleService.class);
-		service.doSomething(42);
-		assertThatExceptionOfType(ConstraintViolationException.class).isThrownBy(() -> service.doSomething(2));
+		this.contextRunner.withUserConfiguration(DefaultAnotherSampleService.class).run((context) -> {
+			assertThat(context.getBeansOfType(Validator.class)).hasSize(1);
+			DefaultAnotherSampleService service = context.getBean(DefaultAnotherSampleService.class);
+			service.doSomething(42);
+			assertThatExceptionOfType(ConstraintViolationException.class).isThrownBy(() -> service.doSomething(2));
+		});
 	}
 
 	@Test
 	void validationCanBeConfiguredToUseJdkProxy() {
-		load(AnotherSampleServiceConfiguration.class, "spring.aop.proxy-target-class=false");
-		assertThat(this.context.getBeansOfType(Validator.class)).hasSize(1);
-		assertThat(this.context.getBeansOfType(DefaultAnotherSampleService.class)).isEmpty();
-		AnotherSampleService service = this.context.getBean(AnotherSampleService.class);
-		service.doSomething(42);
-		assertThatExceptionOfType(ConstraintViolationException.class).isThrownBy(() -> service.doSomething(2));
+		this.contextRunner.withUserConfiguration(AnotherSampleServiceConfiguration.class)
+				.withPropertyValues("spring.aop.proxy-target-class=false").run((context) -> {
+					assertThat(context.getBeansOfType(Validator.class)).hasSize(1);
+					assertThat(context.getBeansOfType(DefaultAnotherSampleService.class)).isEmpty();
+					AnotherSampleService service = context.getBean(AnotherSampleService.class);
+					service.doSomething(42);
+					assertThatExceptionOfType(ConstraintViolationException.class)
+							.isThrownBy(() -> service.doSomething(2));
+				});
 	}
 
 	@Test
 	void userDefinedMethodValidationPostProcessorTakesPrecedence() {
-		load(SampleConfiguration.class);
-		assertThat(this.context.getBeansOfType(Validator.class)).hasSize(1);
-		Object userMethodValidationPostProcessor = this.context.getBean("testMethodValidationPostProcessor");
-		assertThat(this.context.getBean(MethodValidationPostProcessor.class))
-				.isSameAs(userMethodValidationPostProcessor);
-		assertThat(this.context.getBeansOfType(MethodValidationPostProcessor.class)).hasSize(1);
-		assertThat(this.context.getBean(Validator.class))
-				.isNotSameAs(ReflectionTestUtils.getField(userMethodValidationPostProcessor, "validator"));
+		this.contextRunner.withUserConfiguration(SampleConfiguration.class).run((context) -> {
+			assertThat(context.getBeansOfType(Validator.class)).hasSize(1);
+			Object userMethodValidationPostProcessor = context.getBean("testMethodValidationPostProcessor");
+			assertThat(context.getBean(MethodValidationPostProcessor.class))
+					.isSameAs(userMethodValidationPostProcessor);
+			assertThat(context.getBeansOfType(MethodValidationPostProcessor.class)).hasSize(1);
+			assertThat(context.getBean(Validator.class))
+					.isNotSameAs(ReflectionTestUtils.getField(userMethodValidationPostProcessor, "validator"));
+		});
 	}
 
 	@Test
 	void methodValidationPostProcessorValidatorDependencyDoesNotTriggerEarlyInitialization() {
-		load(CustomValidatorConfiguration.class);
-		assertThat(this.context.getBean(TestBeanPostProcessor.class).postProcessed).contains("someService");
+		this.contextRunner.withUserConfiguration(CustomValidatorConfiguration.class)
+				.run((context) -> assertThat(context.getBean(TestBeanPostProcessor.class).postProcessed)
+						.contains("someService"));
 	}
 
-	private boolean isPrimaryBean(String beanName) {
-		return this.context.getBeanDefinition(beanName).isPrimary();
-	}
-
-	private void load(Class<?> config, String... environment) {
-		AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
-		TestPropertyValues.of(environment).applyTo(ctx);
-		if (config != null) {
-			ctx.register(config);
-		}
-		ctx.register(ValidationAutoConfiguration.class);
-		ctx.refresh();
-		this.context = ctx;
+	private boolean isPrimaryBean(AssertableApplicationContext context, String beanName) {
+		return ((BeanDefinitionRegistry) context.getSourceApplicationContext()).getBeanDefinition(beanName).isPrimary();
 	}
 
 	@Configuration(proxyBeanMethods = false)