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Module "junit-jupiter-api" of JUnit 5.
/*
* Copyright 2015-2020 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
*
* https://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;
/**
* {@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 executables) {
assertAll(null, executables);
}
static void assertAll(String heading, Collection 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 executables) {
assertAll(null, executables);
}
static void assertAll(String heading, Stream executables) {
Preconditions.notNull(executables, "executables stream must not be null");
List 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;
}
}
}
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