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Module "junit-jupiter-engine" of JUnit 5.
/*
* Copyright 2015-2016 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 v1.0 which
* accompanies this distribution and is available at
*
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.junit.jupiter.engine.discovery.predicates;
import static org.junit.platform.commons.meta.API.Usage.Internal;
import java.lang.reflect.Method;
import java.util.function.Predicate;
import org.junit.platform.commons.meta.API;
import org.junit.platform.commons.util.ReflectionUtils;
/**
* Test if a class is a JUnit Jupiter test class containing executable tests,
* test factories, or nested tests.
*
* @since 5.0
*/
@API(Internal)
public class IsTestClassWithTests implements Predicate> {
private static final IsTestMethod isTestMethod = new IsTestMethod();
private static final IsTestFactoryMethod isTestFactoryMethod = new IsTestFactoryMethod();
private static final Predicate isTestOrTestFactoryMethod = isTestMethod.or(isTestFactoryMethod);
private static final IsPotentialTestContainer isPotentialTestContainer = new IsPotentialTestContainer();
private static final IsNestedTestClass isNestedTestClass = new IsNestedTestClass();
@Override
public boolean test(Class candidate) {
// please do not collapse into single return
if (!isPotentialTestContainer.test(candidate)) {
return false;
}
return hasTestOrTestFactoryMethods(candidate) || hasNestedTests(candidate);
}
private boolean hasTestOrTestFactoryMethods(Class candidate) {
return !ReflectionUtils.findMethods(candidate, isTestOrTestFactoryMethod).isEmpty();
}
private boolean hasNestedTests(Class candidate) {
return !ReflectionUtils.findNestedClasses(candidate, isNestedTestClass).isEmpty();
}
}