/*
 * 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.api;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.junit.jupiter.api.function.Executable;
import org.junit.platform.commons.util.BlacklistedExceptions;
import org.junit.platform.commons.util.Preconditions;
import org.opentest4j.MultipleFailuresError;

AssertAll is a collection of utility methods that support asserting multiple conditions in tests at once.
Since:5.0
/** * {@code AssertAll} is a collection of utility methods that support asserting * multiple conditions in tests at once. * * @since 5.0 */
class AssertAll { private AssertAll() { /* no-op */ } static void assertAll(Executable... executables) { assertAll(null, executables); } static void assertAll(String heading, Executable... executables) { Preconditions.notEmpty(executables, "executables array must not be null or empty"); Preconditions.containsNoNullElements(executables, "individual executables must not be null"); assertAll(heading, Arrays.stream(executables)); } static void assertAll(Collection<Executable> executables) { assertAll(null, executables); } static void assertAll(String heading, Collection<Executable> executables) { Preconditions.notNull(executables, "executables collection must not be null"); Preconditions.containsNoNullElements(executables, "individual executables must not be null"); assertAll(heading, executables.stream()); } static void assertAll(Stream<Executable> executables) { assertAll(null, executables); } static void assertAll(String heading, Stream<Executable> executables) { Preconditions.notNull(executables, "executables stream must not be null"); List<Throwable> failures = executables // .peek(executable -> Preconditions.notNull(executable, "individual executables must not be null"))// .map(executable -> { try { executable.execute(); return null; } catch (Throwable t) { BlacklistedExceptions.rethrowIfBlacklisted(t); return t; } }) // .filter(Objects::nonNull) // .collect(Collectors.toList()); if (!failures.isEmpty()) { MultipleFailuresError multipleFailuresError = new MultipleFailuresError(heading, failures); failures.forEach(multipleFailuresError::addSuppressed); throw multipleFailuresError; } } }