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Module "junit-jupiter-api" of JUnit 5.
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/*
 * Copyright 2015-2024 the original author or authors.
 *
 * All rights reserved. This program and the accompanying materials are
 * made available under the terms of the Eclipse Public License v2.0 which
 * accompanies this distribution and is available at
 *
 * https://www.eclipse.org/legal/epl-v20.html
 */

package org.junit.jupiter.api.condition;

import static org.apiguardian.api.API.Status.STABLE;

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

import org.apiguardian.api.API;
import org.junit.jupiter.api.extension.ExtendWith;

/**
 * {@code @EnabledIfSystemProperty} is used to signal that the annotated test
 * class or test method is only enabled if the value of the specified
 * {@linkplain #named system property} matches the specified
 * {@linkplain #matches regular expression}.
 *
 * When declared at the class level, the result will apply to all test methods
 * within that class as well.
 *
 * 
This annotation is not {@link java.lang.annotation.Inherited @Inherited}.
 * Consequently, if you wish to apply the same semantics to a subclass, this
 * annotation must be redeclared on the subclass.
 *
 * 
If a test method is disabled via this annotation, that prevents execution
 * of the test method and method-level lifecycle callbacks such as
 * {@code @BeforeEach} methods, {@code @AfterEach} methods, and corresponding
 * extension APIs. However, that does not prevent the test class from being
 * instantiated, and it does not prevent the execution of class-level lifecycle
 * callbacks such as {@code @BeforeAll} methods, {@code @AfterAll} methods, and
 * corresponding extension APIs.
 *
 * 
If the specified system property is undefined, the annotated class or
 * method will be disabled.
 *
 * 
This annotation may be used as a meta-annotation in order to create a
 * custom composed annotation that inherits the semantics of this
 * annotation.
 *
 * 
As of JUnit Jupiter 5.6, this annotation is a {@linkplain Repeatable
 * repeatable} annotation. Consequently, this annotation may be declared multiple
 * times on an {@link java.lang.reflect.AnnotatedElement AnnotatedElement} (i.e.,
 * test interface, test class, or test method). Specifically, this annotation will
 * be found if it is directly present, indirectly present, or meta-present on a
 * given element.
 *
 * @since 5.1
 * @see org.junit.jupiter.api.condition.EnabledIf
 * @see org.junit.jupiter.api.condition.DisabledIf
 * @see org.junit.jupiter.api.condition.EnabledOnOs
 * @see org.junit.jupiter.api.condition.DisabledOnOs
 * @see org.junit.jupiter.api.condition.EnabledOnJre
 * @see org.junit.jupiter.api.condition.DisabledOnJre
 * @see org.junit.jupiter.api.condition.EnabledForJreRange
 * @see org.junit.jupiter.api.condition.DisabledForJreRange
 * @see org.junit.jupiter.api.condition.EnabledInNativeImage
 * @see org.junit.jupiter.api.condition.DisabledInNativeImage
 * @see org.junit.jupiter.api.condition.DisabledIfSystemProperty
 * @see org.junit.jupiter.api.condition.EnabledIfEnvironmentVariable
 * @see org.junit.jupiter.api.condition.DisabledIfEnvironmentVariable
 * @see org.junit.jupiter.api.Disabled
 */
@Target({ ElementType.TYPE, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Repeatable(EnabledIfSystemProperties.class)
@ExtendWith(EnabledIfSystemPropertyCondition.class)
@API(status = STABLE, since = "5.1")
@SuppressWarnings("exports")
public @interface EnabledIfSystemProperty {

	/**
	 * The name of the JVM system property to retrieve.
	 *
	 * @return the system property name; never blank
	 * @see System#getProperty(String)
	 */
	String named();

	/**
	 * A regular expression that will be used to match against the retrieved
	 * value of the {@link #named} JVM system property.
	 *
	 * @return the regular expression; never blank
	 * @see String#matches(String)
	 * @see java.util.regex.Pattern
	 */
	String matches();

	/**
	 * Custom reason to provide if the test or container is disabled.
	 *
	 * If a custom reason is supplied, it will be combined with the default
	 * reason for this annotation. If a custom reason is not supplied, the default
	 * reason will be used.
	 *
	 * @since 5.7
	 */
	@API(status = STABLE, since = "5.7")
	String disabledReason() default "";

}