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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package libcore.android.system;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import android.system.ErrnoException;
import java.io.IOException;
import java.net.SocketException;
import static android.system.OsConstants.EBADF;
import static android.system.OsConstants.EINVAL;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
@RunWith(JUnit4.class)
public class ErrnoExceptionTest {
@Test public void messageErrnoAndCause() {
// For simplicitly, we hard-code "EINVAL (Invalid argument)" here even though
// strictly speaking, those only need to be consistent with errnoName() and
// strerror().
check_messageErrnoAndCause("null failed: EINVAL (Invalid argument)", null, EINVAL);
check_messageErrnoAndCause("name failed: EINVAL (Invalid argument)", "name", EINVAL);
check_messageErrnoAndCause("name failed: EBADF (Bad file descriptor)", "name", EBADF);
}
private static void check_messageErrnoAndCause(String msg, String nameOrNull, int errno) {
Throwable cause = new Throwable("cause msg");
assertMessageErrnoAndCause(msg, errno, null, new ErrnoException(nameOrNull, errno));
assertMessageErrnoAndCause(msg, errno, null, new ErrnoException(nameOrNull, errno, null));
assertMessageErrnoAndCause(msg, errno, cause, new ErrnoException(nameOrNull, errno, cause));
}
private static void assertMessageErrnoAndCause(String message, int errno, Throwable cause,
ErrnoException e) {
assertEquals(message, e.getMessage());
assertEquals(errno, e.errno);
assertEquals(cause, e.getCause());
}
@Test public void rethrow() {
check_rethrow(new ErrnoException(null, EINVAL));
check_rethrow(new ErrnoException(null, EINVAL, null));
check_rethrow(new ErrnoException(null, EINVAL, new Throwable("cause msg")));
check_rethrow(new ErrnoException("name", EINVAL));
check_rethrow(new ErrnoException("name", EINVAL, null));
check_rethrow(new ErrnoException("name", EINVAL, new Throwable("cause msg")));
}
private void check_rethrow(ErrnoException cause) {
try {
cause.rethrowAsIOException();
fail();
} catch (IOException e) {
assertEquals(cause.getMessage(), e.getMessage());
assertEquals(cause, e.getCause());
assertEquals(IOException.class, e.getClass());
}
try {
cause.rethrowAsSocketException();
fail();
} catch (SocketException e) {
assertEquals(cause.getMessage(), e.getMessage());
assertEquals(cause, e.getCause());
assertEquals(SocketException.class, e.getClass());
}
}
}
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