https://spring.io/projects/spring-boot: Spring Boot Test AutoConfigure (Pivotal Software, Inc.) 
/*
 * Copyright 2012-2019 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.
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package org.springframework.boot.test.autoconfigure.json;

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.junit.jupiter.api.extension.ExtendWith;

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.json.GsonTester;
import org.springframework.boot.test.json.JacksonTester;
import org.springframework.boot.test.json.JsonbTester;
import org.springframework.context.annotation.ComponentScan.Filter;
import org.springframework.core.annotation.AliasFor;
import org.springframework.core.env.Environment;
import org.springframework.test.context.BootstrapWith;
import org.springframework.test.context.junit.jupiter.SpringExtension;


Annotation for a JSON test that focuses only on JSON serialization.

 Using this annotation will disable full auto-configuration and instead apply only configuration relevant to JSON tests (i.e. @JsonComponent, Jackson Module) 
 By default, tests annotated with JsonTest will also initialize JacksonTester, JsonbTester and GsonTester fields. More fine-grained control can be provided via the @AutoConfigureJsonTesters annotation. 
 When using JUnit 4, this annotation should be used in combination with @RunWith(SpringRunner.class). 
Author:Phillip Webb, Artsiom Yudovin
See Also:
Since:1.4.0
/**
 * Annotation for a JSON test that focuses <strong>only</strong> on JSON serialization.
 * <p>
 * Using this annotation will disable full auto-configuration and instead apply only
 * configuration relevant to JSON tests (i.e. {@code @JsonComponent}, Jackson
 * {@code Module})
 * <p>
 * By default, tests annotated with {@code JsonTest} will also initialize
 * {@link JacksonTester}, {@link JsonbTester} and {@link GsonTester} fields. More
 * fine-grained control can be provided via the
 * {@link AutoConfigureJsonTesters @AutoConfigureJsonTesters} annotation.
 * <p>
 * When using JUnit 4, this annotation should be used in combination with
 * {@code @RunWith(SpringRunner.class)}.
 *
 * @author Phillip Webb
 * @author Artsiom Yudovin
 * @see AutoConfigureJson
 * @see AutoConfigureJsonTesters
 * @see AutoConfigureCache
 * @since 1.4.0
 */
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@BootstrapWith(JsonTestContextBootstrapper.class)
@ExtendWith(SpringExtension.class)
@OverrideAutoConfiguration(enabled = false)
@TypeExcludeFilters(JsonTypeExcludeFilter.class)
@AutoConfigureCache
@AutoConfigureJson
@AutoConfigureJsonTesters
@ImportAutoConfiguration
public @interface JsonTest {

	
Properties in form key=value that should be added to the Spring Environment before the test runs. 
Returns:the properties to add
Since:2.1.0
/**
	 * Properties in form {@literal key=value} that should be added to the Spring
	 * {@link Environment} before the test runs.
	 * @return the properties to add
	 * @since 2.1.0
	 */
	String[] properties() default {};

	
Determines if default filtering should be used with @SpringBootApplication. By default only @JsonComponent and Module beans are included. 
See Also:
Returns:if default filters should be used
/**
	 * Determines if default filtering should be used with
	 * {@link SpringBootApplication @SpringBootApplication}. By default only
	 * {@code @JsonComponent} and {@code Module} 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.

Returns:include filters to apply
/**
	 * 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.

Returns:exclude filters to apply
/**
	 * 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.

Returns:auto-configuration exclusions to apply
/**
	 * 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 {};

}