org.junitpioneer.jupiter.ReadsStdIo Maven / Gradle / Ivy
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/*
* Copyright 2016-2023 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
*
* http://www.eclipse.org/legal/epl-v20.html
*/
package org.junitpioneer.jupiter;
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.parallel.ResourceAccessMode;
import org.junit.jupiter.api.parallel.ResourceLock;
import org.junit.jupiter.api.parallel.Resources;
/**
* Marks tests that read the static fields {@code System.in}, {@code System.out} or {@code System.err}
* but don't call {@code System.setIn()}, {@code System.setOut()} or {@code System.setErr()}.
*
* During
* parallel test execution,
* all tests annotated with {@link StdIo}, {@link ReadsStdIo}, and {@link WritesStdIo}
* are scheduled in a way that guarantees correctness under mutation of shared global state.
*
* For more details and examples, see
* the documentation on standard input/output.
*
* @since 0.9
*/
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.CONSTRUCTOR, ElementType.METHOD, ElementType.PACKAGE, ElementType.TYPE })
@Inherited
@ResourceLock(value = "java.lang.System.in", mode = ResourceAccessMode.READ)
@ResourceLock(value = Resources.SYSTEM_OUT, mode = ResourceAccessMode.READ)
@ResourceLock(value = Resources.SYSTEM_ERR, mode = ResourceAccessMode.READ)
public @interface ReadsStdIo {
}