Add TypeExcludeFilters support

Provide a way for auto-configuration tests to easily filter scanned
components.

See gh-4901

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/filter/AnnotationCustomizableTypeExcludeFilter.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure.filter;
+
+import java.io.IOException;
+import java.lang.annotation.Annotation;
+import java.util.Set;
+
+import org.springframework.beans.factory.BeanClassLoaderAware;
+import org.springframework.boot.context.TypeExcludeFilter;
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.core.type.classreading.MetadataReader;
+import org.springframework.core.type.classreading.MetadataReaderFactory;
+import org.springframework.core.type.filter.AnnotationTypeFilter;
+import org.springframework.core.type.filter.AssignableTypeFilter;
+
+/**
+ * Abstract base class for a {@link TypeExcludeFilter} that can be customized using an
+ * annotation.
+ *
+ * @author Phillip Webb
+ * @since 1.4.0
+ */
+public abstract class AnnotationCustomizableTypeExcludeFilter extends TypeExcludeFilter
+		implements BeanClassLoaderAware {
+
+	private ClassLoader classLoader;
+
+	@Override
+	public void setBeanClassLoader(ClassLoader classLoader) {
+		this.classLoader = classLoader;
+	}
+
+	@Override
+	public boolean match(MetadataReader metadataReader,
+			MetadataReaderFactory metadataReaderFactory) throws IOException {
+		if (hasAnnotation()) {
+			return !(include(metadataReader, metadataReaderFactory)
+					&& !exclude(metadataReader, metadataReaderFactory));
+		}
+		return false;
+	}
+
+	protected boolean include(MetadataReader metadataReader,
+			MetadataReaderFactory metadataReaderFactory) throws IOException {
+		if (new FilterAnnotations(this.classLoader, getFilters(FilterType.INCLUDE))
+				.anyMatches(metadataReader, metadataReaderFactory)) {
+			return true;
+		}
+		if (isUseDefaultFilters()
+				&& defaultInclude(metadataReader, metadataReaderFactory)) {
+			return true;
+		}
+		return false;
+	}
+
+	protected boolean defaultInclude(MetadataReader metadataReader,
+			MetadataReaderFactory metadataReaderFactory) throws IOException {
+		for (Class<?> include : getDefaultIncudes()) {
+			if (isTypeOrAnnotated(metadataReader, metadataReaderFactory, include)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	protected boolean exclude(MetadataReader metadataReader,
+			MetadataReaderFactory metadataReaderFactory) throws IOException {
+		return new FilterAnnotations(this.classLoader, getFilters(FilterType.EXCLUDE))
+				.anyMatches(metadataReader, metadataReaderFactory);
+	}
+
+	@SuppressWarnings("unchecked")
+	protected final boolean isTypeOrAnnotated(MetadataReader metadataReader,
+			MetadataReaderFactory metadataReaderFactory, Class<?> type)
+					throws IOException {
+		AnnotationTypeFilter annotationFilter = new AnnotationTypeFilter(
+				(Class<? extends Annotation>) type);
+		AssignableTypeFilter typeFilter = new AssignableTypeFilter(type);
+		return annotationFilter.match(metadataReader, metadataReaderFactory)
+				|| typeFilter.match(metadataReader, metadataReaderFactory);
+	}
+
+	protected abstract boolean hasAnnotation();
+
+	protected abstract Filter[] getFilters(FilterType type);
+
+	protected abstract boolean isUseDefaultFilters();
+
+	protected abstract Set<Class<?>> getDefaultIncudes();
+
+	protected static enum FilterType {
+		INCLUDE, EXCLUDE
+	};
+
+}

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/filter/FilterAnnotations.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure.filter;
+
+import java.io.IOException;
+import java.lang.annotation.Annotation;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.regex.Pattern;
+
+import org.springframework.beans.BeanUtils;
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.context.annotation.FilterType;
+import org.springframework.core.type.classreading.MetadataReader;
+import org.springframework.core.type.classreading.MetadataReaderFactory;
+import org.springframework.core.type.filter.AnnotationTypeFilter;
+import org.springframework.core.type.filter.AspectJTypeFilter;
+import org.springframework.core.type.filter.AssignableTypeFilter;
+import org.springframework.core.type.filter.RegexPatternTypeFilter;
+import org.springframework.core.type.filter.TypeFilter;
+import org.springframework.util.Assert;
+
+/**
+ * Utility to load {@link TypeFilter TypeFilters} from {@link Filter @Filter} annotations.
+ *
+ * @author Phillip Webb
+ * @since 1.4.0
+ */
+public class FilterAnnotations implements Iterable<TypeFilter> {
+
+	private final ClassLoader classLoader;
+
+	private final List<TypeFilter> filters;
+
+	public FilterAnnotations(ClassLoader classLoader, Filter[] filters) {
+		Assert.notNull(filters, "Filters must not be null");
+		this.classLoader = classLoader;
+		this.filters = createTypeFilters(filters);
+	}
+
+	private List<TypeFilter> createTypeFilters(Filter[] filters) {
+		List<TypeFilter> typeFilters = new ArrayList<TypeFilter>();
+		for (Filter filter : filters) {
+			for (Class<?> filterClass : filter.classes()) {
+				typeFilters.add(createTypeFilter(filter.type(), filterClass));
+			}
+			for (String pattern : filter.pattern()) {
+				typeFilters.add(createTypeFilter(filter.type(), pattern));
+			}
+		}
+		return Collections.unmodifiableList(typeFilters);
+	}
+
+	@SuppressWarnings("unchecked")
+	private TypeFilter createTypeFilter(FilterType filterType, Class<?> filterClass) {
+		switch (filterType) {
+		case ANNOTATION:
+			Assert.isAssignable(Annotation.class, filterClass,
+					"An error occured while processing a ANNOTATION type filter: ");
+			return new AnnotationTypeFilter((Class<Annotation>) filterClass);
+		case ASSIGNABLE_TYPE:
+			return new AssignableTypeFilter(filterClass);
+		case CUSTOM:
+			Assert.isAssignable(TypeFilter.class, filterClass,
+					"An error occured while processing a CUSTOM type filter: ");
+			return BeanUtils.instantiateClass(filterClass, TypeFilter.class);
+		}
+		throw new IllegalArgumentException(
+				"Filter type not supported with Class value: " + filterType);
+	}
+
+	private TypeFilter createTypeFilter(FilterType filterType, String pattern) {
+		switch (filterType) {
+		case ASPECTJ:
+			return new AspectJTypeFilter(pattern, this.classLoader);
+		case REGEX:
+			return new RegexPatternTypeFilter(Pattern.compile(pattern));
+		}
+		throw new IllegalArgumentException(
+				"Filter type not supported with String pattern: " + filterType);
+	}
+
+	@Override
+	public Iterator<TypeFilter> iterator() {
+		return this.filters.iterator();
+	}
+
+	public boolean anyMatches(MetadataReader metadataReader,
+			MetadataReaderFactory metadataReaderFactory) throws IOException {
+		for (TypeFilter filter : this) {
+			if (filter.match(metadataReader, metadataReaderFactory)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+}

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/filter/TypeExcludeFilters.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure.filter;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.TypeExcludeFilter;
+
+/**
+ * Annotation that can on tests to define a set of {@link TypeExcludeFilter } classes that
+ * should be applied to {@link SpringBootApplication @SpringBootApplication} component
+ * scanning.
+ *
+ * @author Phillip Webb
+ * @since 1.4.0
+ * @see TypeExcludeFilter
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+public @interface TypeExcludeFilters {
+
+	/**
+	 * Specifies {@link TypeExcludeFilter} classes that should be applied to
+	 * {@link SpringBootApplication @SpringBootApplication} component scanning. Classes
+	 * specified here can either have a no-arg constructor or accept a single
+	 * {@code Class<?>} argument if then need access to the {@code testClass}.
+	 * @see TypeExcludeFilter
+	 */
+	Class<? extends TypeExcludeFilter>[] value();
+
+}

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/filter/TypeExcludeFiltersContextCustomizer.java

@@ -0,0 +1,119 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure.filter;
+
+import java.io.IOException;
+import java.lang.reflect.Constructor;
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+import org.springframework.boot.context.TypeExcludeFilter;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.core.type.classreading.MetadataReader;
+import org.springframework.core.type.classreading.MetadataReaderFactory;
+import org.springframework.test.context.ContextCustomizer;
+import org.springframework.test.context.MergedContextConfiguration;
+import org.springframework.util.ReflectionUtils;
+
+/**
+ * {@link ContextCustomizer} to support {@link TypeExcludeFilters @TypeExcludeFilters}.
+ *
+ * @author Phillip Webb
+ * @see TypeExcludeFilters
+ */
+class TypeExcludeFiltersContextCustomizer implements ContextCustomizer {
+
+	private static final String EXCLUDE_FILTER_BEAN_NAME = TypeExcludeFilters.class
+			.getName();
+
+	private final Class<?> testClass;
+
+	private final Set<Class<? extends TypeExcludeFilter>> filterClasses;
+
+	TypeExcludeFiltersContextCustomizer(Class<?> testClass,
+			Set<Class<? extends TypeExcludeFilter>> filterClasses) {
+		this.testClass = testClass;
+		this.filterClasses = filterClasses;
+	}
+
+	@Override
+	public int hashCode() {
+		return this.filterClasses.hashCode();
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		return (obj != null && getClass().equals(obj.getClass()) && this.filterClasses
+				.equals(((TypeExcludeFiltersContextCustomizer) obj).filterClasses));
+	}
+
+	@Override
+	public void customizeContext(ConfigurableApplicationContext context,
+			MergedContextConfiguration mergedContextConfiguration) {
+		if (!this.filterClasses.isEmpty()) {
+			context.getBeanFactory().registerSingleton(EXCLUDE_FILTER_BEAN_NAME,
+					createDelegatingTypeExcludeFilter());
+		}
+	}
+
+	private TypeExcludeFilter createDelegatingTypeExcludeFilter() {
+		final Set<TypeExcludeFilter> filters = new LinkedHashSet<TypeExcludeFilter>(
+				this.filterClasses.size());
+		for (Class<? extends TypeExcludeFilter> filterClass : this.filterClasses) {
+			filters.add(createTypeExcludeFilter(filterClass));
+		}
+		return new TypeExcludeFilter() {
+
+			@Override
+			public boolean match(MetadataReader metadataReader,
+					MetadataReaderFactory metadataReaderFactory) throws IOException {
+				for (TypeExcludeFilter filter : filters) {
+					if (filter.match(metadataReader, metadataReaderFactory)) {
+						return true;
+					}
+				}
+				return false;
+			}
+
+		};
+	}
+
+	private TypeExcludeFilter createTypeExcludeFilter(Class<?> type) {
+		try {
+			Constructor<?> constructor = getTypeExcludeFilterConstructor(type);
+			ReflectionUtils.makeAccessible(constructor);
+			if (constructor.getParameterTypes().length == 1) {
+				return (TypeExcludeFilter) constructor.newInstance(this.testClass);
+			}
+			return (TypeExcludeFilter) constructor.newInstance();
+		}
+		catch (Exception ex) {
+			throw new IllegalStateException("Unable to create filter for " + type, ex);
+		}
+	}
+
+	private Constructor<?> getTypeExcludeFilterConstructor(Class<?> type)
+			throws NoSuchMethodException {
+		try {
+			return type.getDeclaredConstructor(Class.class);
+		}
+		catch (Exception ex) {
+			return type.getDeclaredConstructor();
+		}
+	}
+
+}

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/filter/TypeExcludeFiltersContextCustomizerFactory.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure.filter;
+
+import java.util.Arrays;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.springframework.boot.context.TypeExcludeFilter;
+import org.springframework.core.annotation.AnnotatedElementUtils;
+import org.springframework.test.context.ContextConfigurationAttributes;
+import org.springframework.test.context.ContextCustomizer;
+import org.springframework.test.context.ContextCustomizerFactory;
+
+/**
+ * {@link ContextCustomizerFactory} to support
+ * {@link TypeExcludeFilters @TypeExcludeFilters}.
+ *
+ * @author Phillip Webb
+ * @see TypeExcludeFiltersContextCustomizer
+ */
+class TypeExcludeFiltersContextCustomizerFactory implements ContextCustomizerFactory {
+
+	@Override
+	public ContextCustomizer createContextCustomizer(Class<?> testClass,
+			List<ContextConfigurationAttributes> configurationAttributes) {
+		TypeExcludeFilters annotation = AnnotatedElementUtils
+				.findMergedAnnotation(testClass, TypeExcludeFilters.class);
+		if (annotation != null) {
+			Set<Class<? extends TypeExcludeFilter>> filterClasses = new LinkedHashSet<Class<? extends TypeExcludeFilter>>(
+					Arrays.asList(annotation.value()));
+			return new TypeExcludeFiltersContextCustomizer(testClass, filterClasses);
+		}
+		return null;
+	}
+
+}

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/filter/package-info.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.
+ */
+
+/**
+ * Helper utilities for using {@link org.springframework.boot.context.TypeExcludeFilter}
+ * with auto-configured tests.
+ */
+package org.springframework.boot.test.autoconfigure.filter;

spring-boot-test-autoconfigure/src/main/resources/META-INF/spring.factories

@@ -1,6 +1,7 @@
 # Spring Test ContextCustomizerFactories
 org.springframework.test.context.ContextCustomizerFactory=\
 org.springframework.boot.test.autoconfigure.OverrideAutoConfigurationContextCustomizerFactory,\
+org.springframework.boot.test.autoconfigure.filter.TypeExcludeFiltersContextCustomizerFactory,\
 org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizerFactory
 
 # Test Execution Listeners

spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/filter/FilterAnnotationsTests.java

@@ -0,0 +1,152 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure.filter;
+
+import java.io.IOException;
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.junit.Test;
+
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.context.annotation.FilterType;
+import org.springframework.core.annotation.AnnotatedElementUtils;
+import org.springframework.core.type.classreading.MetadataReader;
+import org.springframework.core.type.classreading.MetadataReaderFactory;
+import org.springframework.core.type.classreading.SimpleMetadataReaderFactory;
+import org.springframework.core.type.filter.TypeFilter;
+import org.springframework.stereotype.Service;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link FilterAnnotations}.
+ *
+ * @author Phillip Webb
+ */
+public class FilterAnnotationsTests {
+
+	@Test
+	public void filterAnnotation() throws Exception {
+		FilterAnnotations filterAnnotations = get(FilterByAnnotation.class);
+		assertThat(match(filterAnnotations, ExampleWithAnnotation.class)).isTrue();
+		assertThat(match(filterAnnotations, ExampleWithoutAnnotation.class)).isFalse();
+	}
+
+	@Test
+	public void filterAssignableType() throws Exception {
+		FilterAnnotations filterAnnotations = get(FilterByType.class);
+		assertThat(match(filterAnnotations, ExampleWithAnnotation.class)).isFalse();
+		assertThat(match(filterAnnotations, ExampleWithoutAnnotation.class)).isTrue();
+	}
+
+	@Test
+	public void filterCustom() throws Exception {
+		FilterAnnotations filterAnnotations = get(FilterByCustom.class);
+		assertThat(match(filterAnnotations, ExampleWithAnnotation.class)).isFalse();
+		assertThat(match(filterAnnotations, ExampleWithoutAnnotation.class)).isTrue();
+	}
+
+	@Test
+	public void filterAspectJ() throws Exception {
+		FilterAnnotations filterAnnotations = get(FilterByAspectJ.class);
+		assertThat(match(filterAnnotations, ExampleWithAnnotation.class)).isFalse();
+		assertThat(match(filterAnnotations, ExampleWithoutAnnotation.class)).isTrue();
+	}
+
+	@Test
+	public void filterRegex() throws Exception {
+		FilterAnnotations filterAnnotations = get(FilterByRegex.class);
+		assertThat(match(filterAnnotations, ExampleWithAnnotation.class)).isFalse();
+		assertThat(match(filterAnnotations, ExampleWithoutAnnotation.class)).isTrue();
+	}
+
+	@Test
+	public void anyMatches() throws Exception {
+	}
+
+	private FilterAnnotations get(Class<?> type) {
+		Filters filters = AnnotatedElementUtils.getMergedAnnotation(type, Filters.class);
+		return new FilterAnnotations(getClass().getClassLoader(), filters.value());
+	}
+
+	private boolean match(FilterAnnotations filterAnnotations, Class<?> type)
+			throws IOException {
+		MetadataReaderFactory metadataReaderFactory = new SimpleMetadataReaderFactory();
+		MetadataReader metadataReader = metadataReaderFactory
+				.getMetadataReader(type.getName());
+		return filterAnnotations.anyMatches(metadataReader, metadataReaderFactory);
+	}
+
+	@Filters(@Filter(Service.class))
+	static class FilterByAnnotation {
+
+	}
+
+	@Filters(@Filter(type = FilterType.ASSIGNABLE_TYPE, classes = ExampleWithoutAnnotation.class))
+	static class FilterByType {
+
+	}
+
+	@Filters(@Filter(type = FilterType.CUSTOM, classes = ExampleCustomFilter.class))
+	static class FilterByCustom {
+
+	}
+
+	@Filters(@Filter(type = FilterType.ASPECTJ, pattern = "(*..*ExampleWithoutAnnotation)"))
+	static class FilterByAspectJ {
+
+	}
+
+	@Filters(@Filter(type = FilterType.REGEX, pattern = ".*ExampleWithoutAnnotation"))
+	static class FilterByRegex {
+
+	}
+
+	@Target({ ElementType.TYPE })
+	@Retention(RetentionPolicy.RUNTIME)
+	@Documented
+	static @interface Filters {
+
+		Filter[] value();
+
+	}
+
+	static class ExampleCustomFilter implements TypeFilter {
+
+		@Override
+		public boolean match(MetadataReader metadataReader,
+				MetadataReaderFactory metadataReaderFactory) throws IOException {
+			return metadataReader.getClassMetadata().getClassName()
+					.equals(ExampleWithoutAnnotation.class.getName());
+		}
+
+	}
+
+	@Service
+	static class ExampleWithAnnotation {
+
+	}
+
+	static class ExampleWithoutAnnotation {
+
+	}
+
+}

spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/filter/TypeExcludeFiltersTestContextCustomizerFactoryTests.java

@@ -0,0 +1,135 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      http://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.boot.test.autoconfigure.filter;
+
+import java.io.IOException;
+
+import org.junit.Test;
+
+import org.springframework.boot.context.TypeExcludeFilter;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.core.type.classreading.MetadataReader;
+import org.springframework.core.type.classreading.MetadataReaderFactory;
+import org.springframework.core.type.classreading.SimpleMetadataReaderFactory;
+import org.springframework.test.context.ContextCustomizer;
+import org.springframework.test.context.MergedContextConfiguration;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+
+/**
+ * Tests for {@link TypeExcludeFiltersContextCustomizerFactory}.
+ *
+ * @author Phillip Webb
+ */
+public class TypeExcludeFiltersTestContextCustomizerFactoryTests {
+
+	private TypeExcludeFiltersContextCustomizerFactory factory = new TypeExcludeFiltersContextCustomizerFactory();
+
+	private MergedContextConfiguration mergedContextConfiguration = mock(
+			MergedContextConfiguration.class);
+
+	private ConfigurableApplicationContext context = new AnnotationConfigApplicationContext();
+
+	@Test
+	public void getContextCustomizerWhenHasNoAnnotationShouldReturnNull()
+			throws Exception {
+		ContextCustomizer customizer = this.factory
+				.createContextCustomizer(NoAnnotation.class, null);
+		assertThat(customizer).isNull();
+	}
+
+	@Test
+	public void getContextCustomizerWhenHasAnnotationShouldReturnCustomizer()
+			throws Exception {
+		ContextCustomizer customizer = this.factory
+				.createContextCustomizer(WithExcludeFilters.class, null);
+		assertThat(customizer).isNotNull();
+	}
+
+	@Test
+	public void hashCodeAndEquals() throws Exception {
+		ContextCustomizer customizer1 = this.factory
+				.createContextCustomizer(WithExcludeFilters.class, null);
+		ContextCustomizer customizer2 = this.factory
+				.createContextCustomizer(WithSameExcludeFilters.class, null);
+		ContextCustomizer customizer3 = this.factory
+				.createContextCustomizer(WithDifferentExcludeFilters.class, null);
+		assertThat(customizer1.hashCode()).isEqualTo(customizer2.hashCode());
+		assertThat(customizer1).isEqualTo(customizer1).isEqualTo(customizer2)
+				.isNotEqualTo(customizer3);
+	}
+
+	@Test
+	public void getContextCustomizerShouldAddExcludeFilters() throws Exception {
+		ContextCustomizer customizer = this.factory
+				.createContextCustomizer(WithExcludeFilters.class, null);
+		customizer.customizeContext(this.context, this.mergedContextConfiguration);
+		this.context.refresh();
+		TypeExcludeFilter filter = this.context.getBean(TypeExcludeFilter.class);
+		MetadataReaderFactory metadataReaderFactory = new SimpleMetadataReaderFactory();
+		MetadataReader metadataReader = metadataReaderFactory
+				.getMetadataReader(NoAnnotation.class.getName());
+		assertThat(filter.match(metadataReader, metadataReaderFactory)).isFalse();
+		metadataReader = metadataReaderFactory
+				.getMetadataReader(SimpleExclude.class.getName());
+		assertThat(filter.match(metadataReader, metadataReaderFactory)).isTrue();
+		metadataReader = metadataReaderFactory
+				.getMetadataReader(TestClassAwareExclude.class.getName());
+		assertThat(filter.match(metadataReader, metadataReaderFactory)).isTrue();
+	}
+
+	static class NoAnnotation {
+
+	}
+
+	@TypeExcludeFilters({ SimpleExclude.class, TestClassAwareExclude.class })
+	static class WithExcludeFilters {
+
+	}
+
+	@TypeExcludeFilters({ TestClassAwareExclude.class, SimpleExclude.class })
+	static class WithSameExcludeFilters {
+
+	}
+
+	@TypeExcludeFilters(SimpleExclude.class)
+	static class WithDifferentExcludeFilters {
+
+	}
+
+	static class SimpleExclude extends TypeExcludeFilter {
+
+		@Override
+		public boolean match(MetadataReader metadataReader,
+				MetadataReaderFactory metadataReaderFactory) throws IOException {
+			return metadataReader.getClassMetadata().getClassName()
+					.equals(getClass().getName());
+		}
+
+	}
+
+	static class TestClassAwareExclude extends SimpleExclude {
+
+		TestClassAwareExclude(Class<?> testClass) {
+			assertThat(testClass).isEqualTo(WithExcludeFilters.class);
+		}
+
+	}
+
+}