/*
 * Copyright 2002-2019 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.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.beans.factory.support;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Qualifier;

import org.junit.jupiter.api.Test;

import org.springframework.aop.scope.ScopedProxyUtils;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.UnsatisfiedDependencyException;
import org.springframework.beans.factory.config.BeanDefinitionHolder;
import org.springframework.beans.factory.config.ConstructorArgumentValues;
import org.springframework.context.annotation.AnnotationConfigUtils;
import org.springframework.context.support.GenericApplicationContext;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;

/**
 * Integration tests for handling JSR-303 {@link javax.inject.Qualifier} annotations.
 *
 * @author Juergen Hoeller
 * @since 3.0
 */
public class InjectAnnotationAutowireContextTests {

	private static final String JUERGEN = "juergen";

	private static final String MARK = "mark";


	@Test
	public void testAutowiredFieldWithSingleNonQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs = new ConstructorArgumentValues();
		cavs.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
		context.registerBeanDefinition(JUERGEN, person);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> {
				assertThat(ex.getRootCause()).isInstanceOf(NoSuchBeanDefinitionException.class);
				assertThat(ex.getBeanName()).isEqualTo("autowired");
			});
	}

	@Test
	public void testAutowiredMethodParameterWithSingleNonQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs = new ConstructorArgumentValues();
		cavs.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
		context.registerBeanDefinition(JUERGEN, person);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> {
				assertThat(ex.getRootCause()).isInstanceOf(NoSuchBeanDefinitionException.class);
				assertThat(ex.getBeanName()).isEqualTo("autowired");
			});
	}

	@Test
	public void testAutowiredConstructorArgumentWithSingleNonQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs = new ConstructorArgumentValues();
		cavs.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
		context.registerBeanDefinition(JUERGEN, person);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(UnsatisfiedDependencyException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> assertThat(ex.getBeanName()).isEqualTo("autowired"));
	}

	@Test
	public void testAutowiredFieldWithSingleQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs = new ConstructorArgumentValues();
		cavs.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
		person.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
		context.registerBeanDefinition(JUERGEN, person);
		context.registerBeanDefinition("autowired", new RootBeanDefinition(QualifiedFieldTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedFieldTestBean bean = (QualifiedFieldTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredMethodParameterWithSingleQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs = new ConstructorArgumentValues();
		cavs.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
		person.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
		context.registerBeanDefinition(JUERGEN, person);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedMethodParameterTestBean bean =
				(QualifiedMethodParameterTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredMethodParameterWithStaticallyQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs = new ConstructorArgumentValues();
		cavs.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person = new RootBeanDefinition(QualifiedPerson.class, cavs, null);
		context.registerBeanDefinition(JUERGEN,
				ScopedProxyUtils.createScopedProxy(new BeanDefinitionHolder(person, JUERGEN), context, true).getBeanDefinition());
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedMethodParameterTestBean bean =
				(QualifiedMethodParameterTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredMethodParameterWithStaticallyQualifiedCandidateAmongOthers() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs = new ConstructorArgumentValues();
		cavs.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person = new RootBeanDefinition(QualifiedPerson.class, cavs, null);
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedMethodParameterTestBean bean =
				(QualifiedMethodParameterTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredConstructorArgumentWithSingleQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs = new ConstructorArgumentValues();
		cavs.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person = new RootBeanDefinition(Person.class, cavs, null);
		person.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
		context.registerBeanDefinition(JUERGEN, person);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedConstructorArgumentTestBean bean =
				(QualifiedConstructorArgumentTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredFieldWithMultipleNonQualifiedCandidates() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> {
				assertThat(ex.getRootCause()).isInstanceOf(NoSuchBeanDefinitionException.class);
				assertThat(ex.getBeanName()).isEqualTo("autowired");
			});
	}

	@Test
	public void testAutowiredMethodParameterWithMultipleNonQualifiedCandidates() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> {
				assertThat(ex.getRootCause()).isInstanceOf(NoSuchBeanDefinitionException.class);
				assertThat(ex.getBeanName()).isEqualTo("autowired");
			});
	}

	@Test
	public void testAutowiredConstructorArgumentWithMultipleNonQualifiedCandidates() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(UnsatisfiedDependencyException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> assertThat(ex.getBeanName()).isEqualTo("autowired"));
	}

	@Test
	public void testAutowiredFieldResolvesQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedFieldTestBean bean = (QualifiedFieldTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredMethodParameterResolvesQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedMethodParameterTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedMethodParameterTestBean bean =
				(QualifiedMethodParameterTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredConstructorArgumentResolvesQualifiedCandidate() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedConstructorArgumentTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedConstructorArgumentTestBean bean =
				(QualifiedConstructorArgumentTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredFieldResolvesQualifiedCandidateWithDefaultValueAndNoValueOnBeanDefinition() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		// qualifier added, but includes no value
		person1.addQualifier(new AutowireCandidateQualifier(TestQualifierWithDefaultValue.class));
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldWithDefaultValueTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedFieldWithDefaultValueTestBean bean =
				(QualifiedFieldWithDefaultValueTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredFieldDoesNotResolveCandidateWithDefaultValueAndConflictingValueOnBeanDefinition() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		// qualifier added, and non-default value specified
		person1.addQualifier(new AutowireCandidateQualifier(TestQualifierWithDefaultValue.class, "not the default"));
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldWithDefaultValueTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> {
				assertThat(ex.getRootCause()).isInstanceOf(NoSuchBeanDefinitionException.class);
				assertThat(ex.getBeanName()).isEqualTo("autowired");
			});
	}

	@Test
	public void testAutowiredFieldResolvesWithDefaultValueAndExplicitDefaultValueOnBeanDefinition() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		// qualifier added, and value matches the default
		person1.addQualifier(new AutowireCandidateQualifier(TestQualifierWithDefaultValue.class, "default"));
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldWithDefaultValueTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedFieldWithDefaultValueTestBean bean =
				(QualifiedFieldWithDefaultValueTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(JUERGEN);
	}

	@Test
	public void testAutowiredFieldResolvesWithMultipleQualifierValues() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
		qualifier.setAttribute("number", 456);
		person1.addQualifier(qualifier);
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		AutowireCandidateQualifier qualifier2 = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
		qualifier2.setAttribute("number", 123);
		person2.addQualifier(qualifier2);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldWithMultipleAttributesTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedFieldWithMultipleAttributesTestBean bean =
				(QualifiedFieldWithMultipleAttributesTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(MARK);
	}

	@Test
	public void testAutowiredFieldDoesNotResolveWithMultipleQualifierValuesAndConflictingDefaultValue() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
		qualifier.setAttribute("number", 456);
		person1.addQualifier(qualifier);
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		AutowireCandidateQualifier qualifier2 = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
		qualifier2.setAttribute("number", 123);
		qualifier2.setAttribute("value", "not the default");
		person2.addQualifier(qualifier2);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldWithMultipleAttributesTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> {
				assertThat(ex.getRootCause()).isInstanceOf(NoSuchBeanDefinitionException.class);
				assertThat(ex.getBeanName()).isEqualTo("autowired");
			});
	}

	@Test
	public void testAutowiredFieldResolvesWithMultipleQualifierValuesAndExplicitDefaultValue() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
		qualifier.setAttribute("number", 456);
		person1.addQualifier(qualifier);
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		AutowireCandidateQualifier qualifier2 = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
		qualifier2.setAttribute("number", 123);
		qualifier2.setAttribute("value", "default");
		person2.addQualifier(qualifier2);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldWithMultipleAttributesTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		context.refresh();
		QualifiedFieldWithMultipleAttributesTestBean bean =
				(QualifiedFieldWithMultipleAttributesTestBean) context.getBean("autowired");
		assertThat(bean.getPerson().getName()).isEqualTo(MARK);
	}

	@Test
	public void testAutowiredFieldDoesNotResolveWithMultipleQualifierValuesAndMultipleMatchingCandidates() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue(JUERGEN);
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		AutowireCandidateQualifier qualifier = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
		qualifier.setAttribute("number", 123);
		person1.addQualifier(qualifier);
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue(MARK);
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		AutowireCandidateQualifier qualifier2 = new AutowireCandidateQualifier(TestQualifierWithMultipleAttributes.class);
		qualifier2.setAttribute("number", 123);
		qualifier2.setAttribute("value", "default");
		person2.addQualifier(qualifier2);
		context.registerBeanDefinition(JUERGEN, person1);
		context.registerBeanDefinition(MARK, person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedFieldWithMultipleAttributesTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(BeanCreationException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> {
				assertThat(ex.getRootCause()).isInstanceOf(NoSuchBeanDefinitionException.class);
				assertThat(ex.getBeanName()).isEqualTo("autowired");
			});
	}

	@Test
	public void testAutowiredFieldDoesNotResolveWithBaseQualifierAndNonDefaultValueAndMultipleMatchingCandidates() {
		GenericApplicationContext context = new GenericApplicationContext();
		ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
		cavs1.addGenericArgumentValue("the real juergen");
		RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
		person1.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "juergen"));
		ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
		cavs2.addGenericArgumentValue("juergen imposter");
		RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
		person2.addQualifier(new AutowireCandidateQualifier(Qualifier.class, "juergen"));
		context.registerBeanDefinition("juergen1", person1);
		context.registerBeanDefinition("juergen2", person2);
		context.registerBeanDefinition("autowired",
				new RootBeanDefinition(QualifiedConstructorArgumentWithBaseQualifierNonDefaultValueTestBean.class));
		AnnotationConfigUtils.registerAnnotationConfigProcessors(context);
		assertThatExceptionOfType(UnsatisfiedDependencyException.class).isThrownBy(
				context::refresh)
			.satisfies(ex -> assertThat(ex.getBeanName()).isEqualTo("autowired"));
	}


	private static class QualifiedFieldTestBean {

		@Inject
		@TestQualifier
		private Person person;

		public Person getPerson() {
			return this.person;
		}
	}


	private static class QualifiedMethodParameterTestBean {

		private Person person;

		@Inject
		public void setPerson(@TestQualifier Person person) {
			this.person = person;
		}

		public Person getPerson() {
			return this.person;
		}
	}


	private static class QualifiedConstructorArgumentTestBean {

		private Person person;

		@Inject
		public QualifiedConstructorArgumentTestBean(@TestQualifier Person person) {
			this.person = person;
		}

		public Person getPerson() {
			return this.person;
		}

	}


	public static class QualifiedFieldWithDefaultValueTestBean {

		@Inject
		@TestQualifierWithDefaultValue
		private Person person;

		public Person getPerson() {
			return this.person;
		}
	}


	public static class QualifiedFieldWithMultipleAttributesTestBean {

		@Inject
		@TestQualifierWithMultipleAttributes(number=123)
		private Person person;

		public Person getPerson() {
			return this.person;
		}
	}


	@SuppressWarnings("unused")
	private static class QualifiedFieldWithBaseQualifierDefaultValueTestBean {

		@Inject
		private Person person;

		public Person getPerson() {
			return this.person;
		}
	}


	public static class QualifiedConstructorArgumentWithBaseQualifierNonDefaultValueTestBean {

		private Person person;

		@Inject
		public QualifiedConstructorArgumentWithBaseQualifierNonDefaultValueTestBean(
				@Named("juergen") Person person) {
			this.person = person;
		}

		public Person getPerson() {
			return this.person;
		}
	}


	private static class Person {

		private String name;

		public Person(String name) {
			this.name = name;
		}

		public String getName() {
			return this.name;
		}
	}


	@TestQualifier
	private static class QualifiedPerson extends Person {

		public QualifiedPerson() {
			super(null);
		}

		public QualifiedPerson(String name) {
			super(name);
		}
	}


	@Target({ElementType.FIELD, ElementType.PARAMETER, ElementType.TYPE})
	@Retention(RetentionPolicy.RUNTIME)
	@Qualifier
	public @interface TestQualifier {
	}


	@Target(ElementType.FIELD)
	@Retention(RetentionPolicy.RUNTIME)
	@Qualifier
	public @interface TestQualifierWithDefaultValue {

		String value() default "default";
	}


	@Target(ElementType.FIELD)
	@Retention(RetentionPolicy.RUNTIME)
	@Qualifier
	public @interface TestQualifierWithMultipleAttributes {

		String value() default "default";

		int number();
	}

}
