001/* 002 * Copyright 2023 the original author or authors. 003 * <p> 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * <p> 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * <p> 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package de.cuioss.test.generator.junit; 017 018import static java.lang.annotation.ElementType.TYPE; 019import static java.lang.annotation.RetentionPolicy.RUNTIME; 020 021import java.lang.annotation.Retention; 022import java.lang.annotation.Target; 023 024import org.junit.jupiter.api.extension.ExtendWith; 025 026/** 027 * <h2>Purpose and Usage</h2> This annotation is meant to be set on a junit 5 028 * test-case. It controls the generator subsystem and, in case of test-failures, 029 * provides information, that can be used for repeating the failed tests with a 030 * fixed seed for the generators, see {@link GeneratorSeed} for details. This 031 * fixed seed results in the generators reproducing the exact same test-data. 032 * Sample output: 033 * 034 * <pre> 035GeneratorController seed was 4711L. 036Use a fixed seed by applying @GeneratorSeed(4711L) for the method/class, 037or by using the system property '-Dde.cuioss.test.generator.seed=4711' 038 * </pre> 039 * 040 * <h2>Implementation</h2> Shorthand for enabling 041 * {@link GeneratorControllerExtension} for a certain test-class. This type is 042 * equivalent to {@link ExtendWith} {@link GeneratorControllerExtension} 043 * 044 * @author Oliver Wolff 045 * 046 */ 047@Retention(RUNTIME) 048@Target(TYPE) 049@ExtendWith(GeneratorControllerExtension.class) 050public @interface EnableGeneratorController { 051 052}