/*
 * Copyright 2015-2019 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.junit.jupiter.engine.discovery.predicates;

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

import java.lang.reflect.Method;
import java.util.function.Predicate;

import org.apiguardian.api.API;
import org.junit.platform.commons.util.ReflectionUtils;

Test if a class is a JUnit Jupiter test class containing executable tests, test factories, test templates, or nested tests.
Since:5.0
/** * Test if a class is a JUnit Jupiter test class containing executable tests, * test factories, test templates, or nested tests. * * @since 5.0 */
@API(status = INTERNAL, since = "5.1") public class IsTestClassWithTests implements Predicate<Class<?>> { private static final IsTestMethod isTestMethod = new IsTestMethod(); private static final IsTestFactoryMethod isTestFactoryMethod = new IsTestFactoryMethod(); private static final IsTestTemplateMethod isTestTemplateMethod = new IsTestTemplateMethod(); private static final Predicate<Method> isTestOrTestFactoryOrTestTemplateMethod = isTestMethod.or( isTestFactoryMethod).or(isTestTemplateMethod); private static final IsPotentialTestContainer isPotentialTestContainer = new IsPotentialTestContainer(); private static final IsNestedTestClass isNestedTestClass = new IsNestedTestClass(); @Override public boolean test(Class<?> candidate) { return isPotentialTestContainer.test(candidate) && (hasTestOrTestFactoryOrTestTemplateMethods(candidate) || hasNestedTests(candidate)); } private boolean hasTestOrTestFactoryOrTestTemplateMethods(Class<?> candidate) { return ReflectionUtils.isMethodPresent(candidate, isTestOrTestFactoryOrTestTemplateMethod); } private boolean hasNestedTests(Class<?> candidate) { return !ReflectionUtils.findNestedClasses(candidate, isNestedTestClass).isEmpty(); } }