/**
* Copyright (c) 2014, Data Geekery GmbH, contact@datageekery.com
*
* 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 org.jooq.lambda;
import org.junit.Test;
import java.util.function.DoubleUnaryOperator;
import java.util.function.IntUnaryOperator;
import java.util.function.LongUnaryOperator;
import java.util.function.UnaryOperator;
import java.util.stream.DoubleStream;
import java.util.stream.IntStream;
import java.util.stream.LongStream;
import java.util.stream.Stream;
import static org.junit.Assert.*;
/**
* @author Lukas Eder
*/
public class CheckedUnaryOperatorTest {
@Test
public void testCheckedUnaryOperator() {
UnaryOperator<Object> test = Unchecked.unaryOperator(
t -> {
throw new Exception("" + t);
}
);
assertUnaryOperator(test, UncheckedException.class);
}
@Test
public void testCheckedUnaryOperatorWithCustomHandler() {
UnaryOperator<Object> test = Unchecked.unaryOperator(
t -> {
throw new Exception("" + t);
},
e -> {
throw new IllegalStateException(e);
}
);
assertUnaryOperator(test, IllegalStateException.class);
}
@Test
public void testCheckedIntUnaryOperator() {
IntUnaryOperator test = Unchecked.intUnaryOperator(
i -> {
throw new Exception("" + i);
}
);
assertIntUnaryOperator(test, UncheckedException.class);
}
@Test
public void testCheckedIntUnaryOperatorWithCustomHandler() {
IntUnaryOperator test = Unchecked.intUnaryOperator(
i -> {
throw new Exception("" + i);
},
e -> {
throw new IllegalStateException(e);
}
);
assertIntUnaryOperator(test, IllegalStateException.class);
}
@Test
public void testCheckedLongUnaryOperator() {
LongUnaryOperator test = Unchecked.longUnaryOperator(
l -> {
throw new Exception("" + l);
}
);
assertLongUnaryOperator(test, UncheckedException.class);
}
@Test
public void testCheckedLongUnaryOperatorWithCustomHandler() {
LongUnaryOperator test = Unchecked.longUnaryOperator(
l -> {
throw new Exception("" + l);
},
e -> {
throw new IllegalStateException(e);
}
);
assertLongUnaryOperator(test, IllegalStateException.class);
}
@Test
public void testCheckedDoubleUnaryOperator() {
DoubleUnaryOperator test = Unchecked.doubleUnaryOperator(
d -> {
throw new Exception("" + d);
}
);
assertDoubleUnaryOperator(test, UncheckedException.class);
}
@Test
public void testCheckedDoubleUnaryOperatorWithCustomHandler() {
DoubleUnaryOperator test = Unchecked.doubleUnaryOperator(
d -> {
throw new Exception("" + d);
},
e -> {
throw new IllegalStateException(e);
}
);
assertDoubleUnaryOperator(test, IllegalStateException.class);
}
private <E extends RuntimeException> void assertUnaryOperator(UnaryOperator<Object> test, Class<E> type) {
assertNotNull(test);
try {
test.apply(null);
fail();
}
catch (RuntimeException e) {
assertException(type, e, "null");
}
try {
Stream.of("a", "b", "c").map(test);
}
catch (RuntimeException e) {
assertException(type, e, "a");
}
}
private <E extends RuntimeException> void assertIntUnaryOperator(IntUnaryOperator test, Class<E> type) {
assertNotNull(test);
try {
test.applyAsInt(0);
fail();
}
catch (RuntimeException e) {
assertException(type, e, "0");
}
try {
IntStream.of(1, 2, 3).map(test);
}
catch (RuntimeException e) {
assertException(type, e, "1");
}
}
private <E extends RuntimeException> void assertLongUnaryOperator(LongUnaryOperator test, Class<E> type) {
assertNotNull(test);
try {
test.applyAsLong(0L);
fail();
}
catch (RuntimeException e) {
assertException(type, e, "0");
}
try {
LongStream.of(1L, 2L, 3L).map(test);
}
catch (RuntimeException e) {
assertException(type, e, "1");
}
}
private <E extends RuntimeException> void assertDoubleUnaryOperator(DoubleUnaryOperator test, Class<E> type) {
assertNotNull(test);
try {
test.applyAsDouble(0.0);
fail();
}
catch (RuntimeException e) {
assertException(type, e, "0.0");
}
try {
DoubleStream.of(1.0, 2.0, 3.0).map(test);
}
catch (RuntimeException e) {
assertException(type, e, "1.0");
}
}
private <E extends RuntimeException> void assertException(Class<E> type, RuntimeException e, String message) {
assertEquals(type, e.getClass());
assertEquals(Exception.class, e.getCause().getClass());
assertEquals(message, e.getCause().getMessage());
}
}