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TestSystemExit.java
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TestSystemExit.java
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/*-
* #%L
* JUnit5 System Extensions
* %%
* Copyright (C) 2018 itsallcode.org
* %%
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the Eclipse
* Public License, v. 2.0 are satisfied: GNU General Public License, version 2
* with the GNU Classpath Exception which is
* available at https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
* #L%
*/
package org.itsallcode.junit.sysextensions;
import static org.itsallcode.junit.sysextensions.AssertExit.assertExit;
import static org.itsallcode.junit.sysextensions.AssertExit.assertExitWithStatus;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.fail;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
@ExtendWith(ExitGuard.class)
class TestSystemExit
{
@Test
void testSystemExit()
{
assertExit(() -> System.exit(1));
}
@Test
void testSystemExitMissingThrowsAssertError()
{
try
{
assertExit(() -> {
// intentionally empty
});
}
catch (final AssertionError assertionError)
{
assertMissingExitMessage(assertionError);
return;
}
fail("Code sequence where exit was expected did not exit, no assertion error was raised.");
}
private void assertMissingExitMessage(final AssertionError assertionError)
{
assertEquals(assertionError.getMessage(), "Lambda did not cause a system exit as expected.");
}
@Test
void testSystemExitWithStatus()
{
assertExitWithStatus(1, () -> System.exit(1));
}
@Test
void testSystemExitWithUnexpectedStatusThrowsAssertionError()
{
try
{
assertExitWithStatus(0, () -> System.exit(1));
}
catch (final AssertionError assertionError)
{
return;
}
fail("Code sequence where certain exit status was expected exited with different status.");
}
@Test
void testSystemWithStatusMissingExitThrowsAssertError()
{
try
{
assertExitWithStatus(0, () -> {
// intentionally empty
});
}
catch (final AssertionError assertionError)
{
assertMissingExitMessage(assertionError);
return;
}
fail("Code sequence where exit was expected did not exit, no assertion error was raised.");
}
}