Add slice test annotation for LDAP

This commit adds new annotation `@DataLdapTest` which provides test
infrastructure for LDAP. By default, embedded ldap server is initialized
if available.

See gh-8536

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/data/ldap/AutoConfigureDataLdap.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2012-2017 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.data.ldap;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+
+/**
+ * {@link ImportAutoConfiguration Auto-configuration imports} for typical Data LDAP
+ * tests. Most tests should consider using {@link DataLdapTest @DataLdapTest} rather
+ * than using this annotation directly.
+ *
+ * @author Eddú Meléndez
+ * @since 2.0.0
+ * @see DataLdapTest
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Inherited
+@ImportAutoConfiguration
+public @interface AutoConfigureDataLdap {
+
+}

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/data/ldap/DataLdapTest.java

@@ -0,0 +1,93 @@
+/*
+ * Copyright 2012-2017 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.data.ldap;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.test.autoconfigure.OverrideAutoConfiguration;
+import org.springframework.boot.test.autoconfigure.core.AutoConfigureCache;
+import org.springframework.boot.test.autoconfigure.filter.TypeExcludeFilters;
+import org.springframework.boot.test.context.SpringBootTestContextBootstrapper;
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.core.annotation.AliasFor;
+import org.springframework.test.context.BootstrapWith;
+
+/**
+ * Annotation that can be used in combination with {@code @RunWith(SpringRunner.class)}
+ * for a typical LDAP test. Can be used when a test focuses <strong>only</strong> on
+ * LDAP components.
+ * <p>
+ * Using this annotation will disable full auto-configuration and instead apply only
+ * configuration relevant to LDAP tests.
+ * <p>
+ * By default, tests annotated with {@code @DataLdapTest} will use an embedded in-memory
+ * LDAP process (if available).
+ *
+ * @author Eddú Meléndez
+ * @since 2.0.0
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Inherited
+@BootstrapWith(SpringBootTestContextBootstrapper.class)
+@OverrideAutoConfiguration(enabled = false)
+@TypeExcludeFilters(DataLdapTypeExcludeFilter.class)
+@AutoConfigureCache
+@AutoConfigureDataLdap
+@ImportAutoConfiguration
+public @interface DataLdapTest {
+
+	/**
+	 * Determines if default filtering should be used with
+	 * {@link SpringBootApplication @SpringBootApplication}. By default no beans are
+	 * included.
+	 * @see #includeFilters()
+	 * @see #excludeFilters()
+	 * @return if default filters should be used
+	 */
+	boolean useDefaultFilters() default true;
+
+	/**
+	 * A set of include filters which can be used to add otherwise filtered beans to the
+	 * application context.
+	 * @return include filters to apply
+	 */
+	Filter[] includeFilters() default {};
+
+	/**
+	 * A set of exclude filters which can be used to filter beans that would otherwise be
+	 * added to the application context.
+	 * @return exclude filters to apply
+	 */
+	Filter[] excludeFilters() default {};
+
+	/**
+	 * Auto-configuration exclusions that should be applied for this test.
+	 * @return auto-configuration exclusions to apply
+	 */
+	@AliasFor(annotation = ImportAutoConfiguration.class, attribute = "exclude")
+	Class<?>[] excludeAutoConfiguration() default {};
+
+}

spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/data/ldap/DataLdapTypeExcludeFilter.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2012-2017 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.data.ldap;
+
+import java.util.Collections;
+import java.util.Set;
+
+import org.springframework.boot.context.TypeExcludeFilter;
+import org.springframework.boot.test.autoconfigure.filter.AnnotationCustomizableTypeExcludeFilter;
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.core.annotation.AnnotatedElementUtils;
+
+/**
+ * {@link TypeExcludeFilter} for {@link DataLdapTest @DataLdapTest}.
+ *
+ * @author Eddú Meléndez
+ */
+class DataLdapTypeExcludeFilter extends AnnotationCustomizableTypeExcludeFilter {
+
+	private final DataLdapTest annotation;
+
+	DataLdapTypeExcludeFilter(Class<?> testClass) {
+		this.annotation = AnnotatedElementUtils.getMergedAnnotation(testClass,
+				DataLdapTest.class);
+	}
+
+	@Override
+	protected boolean hasAnnotation() {
+		return this.annotation != null;
+	}
+
+	@Override
+	protected Filter[] getFilters(FilterType type) {
+		switch (type) {
+			case INCLUDE:
+				return this.annotation.includeFilters();
+			case EXCLUDE:
+				return this.annotation.excludeFilters();
+			default:
+				throw new IllegalStateException("Unsupported type " + type);
+		}
+	}
+
+	@Override
+	protected boolean isUseDefaultFilters() {
+		return this.annotation.useDefaultFilters();
+	}
+
+	@Override
+	protected Set<Class<?>> getDefaultIncludes() {
+		return Collections.emptySet();
+	}
+
+	@Override
+	protected Set<Class<?>> getComponentIncludes() {
+		return Collections.emptySet();
+	}
+
+}

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

@@ -13,6 +13,13 @@ org.springframework.boot.autoconfigure.liquibase.LiquibaseAutoConfiguration,\
 org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration,\
 org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration
 
+# AutoConfigureDataLdap auto-configuration imports
+org.springframework.boot.test.autoconfigure.data.ldap.AutoConfigureDataLdap=\
+org.springframework.boot.autoconfigure.data.ldap.LdapDataAutoConfiguration,\
+org.springframework.boot.autoconfigure.data.ldap.LdapRepositoriesAutoConfiguration,\
+org.springframework.boot.autoconfigure.ldap.LdapAutoConfiguration,\
+org.springframework.boot.autoconfigure.ldap.embedded.EmbeddedLdapAutoConfiguration
+
 # AutoConfigureDataMongo auto-configuration imports
 org.springframework.boot.test.autoconfigure.data.mongo.AutoConfigureDataMongo=\
 org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration,\