/**
* 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.BinaryOperator;
import java.util.function.DoubleBinaryOperator;
import java.util.function.IntBinaryOperator;
import java.util.function.LongBinaryOperator;
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 CheckedBinaryOperatorTest {
@Test
public void testCheckedBinaryOperator() {
BinaryOperator<Object> test = Unchecked.binaryOperator(
(t1, t2) -> {
throw new Exception(t1 + ":" + t2);
}
);
assertBinaryOperator(test, UncheckedException.class);
}
@Test
public void testCheckedBinaryOperatorWithCustomHandler() {
BinaryOperator<Object> test = Unchecked.binaryOperator(
(t1, t2) -> {
throw new Exception(t1 + ":" + t2);
},
e -> {
throw new IllegalStateException(e);
}
);
assertBinaryOperator(test, IllegalStateException.class);
}
@Test
public void testCheckedIntBinaryOperator() {
IntBinaryOperator test = Unchecked.intBinaryOperator(
(i1, i2) -> {
throw new Exception(i1 + ":" + i2);
}
);
assertIntBinaryOperator(test, UncheckedException.class);
}
@Test
public void testCheckedIntBinaryOperatorWithCustomHandler() {
IntBinaryOperator test = Unchecked.intBinaryOperator(
(i1, i2) -> {
throw new Exception(i1 + ":" + i2);
},
e -> {
throw new IllegalStateException(e);
}
);
assertIntBinaryOperator(test, IllegalStateException.class);
}
@Test
public void testCheckedLongBinaryOperator() {
LongBinaryOperator test = Unchecked.longBinaryOperator(
(l1, l2) -> {
throw new Exception(l1 + ":" + l2);
}
);
assertLongBinaryOperator(test, UncheckedException.class);
}
@Test
public void testCheckedLongBinaryOperatorWithCustomHandler() {
LongBinaryOperator test = Unchecked.longBinaryOperator(
(l1, l2) -> {
throw new Exception(l1 + ":" + l2);
},
e -> {
throw new IllegalStateException(e);
}
);
assertLongBinaryOperator(test, IllegalStateException.class);
}
@Test
public void testCheckedDoubleBinaryOperator() {
DoubleBinaryOperator test = Unchecked.doubleBinaryOperator(
(d1, d2) -> {
throw new Exception(d1 + ":" + d2);
}
);
assertDoubleBinaryOperator(test, UncheckedException.class);
}
@Test
public void testCheckedDoubleBinaryOperatorWithCustomHandler() {
DoubleBinaryOperator test = Unchecked.doubleBinaryOperator(
(d1, d2) -> {
throw new Exception(d1 + ":" + d2);
},
e -> {
throw new IllegalStateException(e);
}
);
assertDoubleBinaryOperator(test, IllegalStateException.class);
}
private <E extends RuntimeException> void assertBinaryOperator(BinaryOperator<Object> test, Class<E> type) {
assertNotNull(test);
try {
test.apply(null, null);
fail();
}
catch (RuntimeException e) {
assertException(type, e, "null:null");
}
try {
Stream.of((Object) "a", "b", "c").reduce(test);
}
catch (RuntimeException e) {
assertException(type, e, "a:b");
}
}
private <E extends RuntimeException> void assertIntBinaryOperator(IntBinaryOperator test, Class<E> type) {
assertNotNull(test);
try {
test.applyAsInt(0, 0);
fail();
}
catch (RuntimeException e) {
assertException(type, e, "0:0");
}
try {
IntStream.of(1, 2, 3).reduce(test);
}
catch (RuntimeException e) {
assertException(type, e, "1:2");
}
}
private <E extends RuntimeException> void assertLongBinaryOperator(LongBinaryOperator test, Class<E> type) {
assertNotNull(test);
try {
test.applyAsLong(0L, 0L);
fail();
}
catch (RuntimeException e) {
assertException(type, e, "0:0");
}
try {
LongStream.of(1L, 2L, 3L).reduce(test);
}
catch (RuntimeException e) {
assertException(type, e, "1:2");
}
}
private <E extends RuntimeException> void assertDoubleBinaryOperator(DoubleBinaryOperator test, Class<E> type) {
assertNotNull(test);
try {
test.applyAsDouble(0.0, 0.0);
fail();
}
catch (RuntimeException e) {
assertException(type, e, "0.0:0.0");
}
try {
DoubleStream.of(1.0, 2.0, 3.0).reduce(test);
}
catch (RuntimeException e) {
assertException(type, e, "1.0:2.0");
}
}
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());
}
}