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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.commons.lang3.function;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.commons.lang3.exception.UncheckedException;
import org.junit.jupiter.api.Test;
/**
* Tests {@link MethodInvokers#asFailableFunction(Method)}.
*/
public class MethodInvokersFailableFunctionTest extends MethodFixtures {
@Test
public void testApply0Arg() throws Throwable {
assertEquals(INSTANCE.getString(), MethodInvokers.asFailableFunction(getMethodForGetString()).apply(INSTANCE));
}
@Test
public void testConstructorForNull() throws SecurityException {
assertThrows(NullPointerException.class, () -> MethodInvokers.asFailableFunction((Method) null));
}
@Test
public void testBuildVarArg() throws SecurityException, NoSuchMethodException {
MethodInvokers.asFailableFunction(getMethodForGetStringVarStringArgs());
}
@Test
public void testFindAndInvoke() throws SecurityException {
// Finding
final List<FailableFunction<Object, Object, Throwable>> invokers = Stream.of(MethodFixtures.class.getDeclaredMethods())
.filter(m -> m.isAnnotationPresent(AnnotationTestFixture.class)).map(MethodInvokers::asFailableFunction).collect(Collectors.toList());
assertEquals(2, invokers.size());
// ...
// Invoking
final Set<Object> set = invokers.stream().map(i -> {
try {
return i.apply(MethodFixtures.INSTANCE);
} catch (final Throwable e) {
throw new UncheckedException(e);
}
}).collect(Collectors.toSet());
assertEquals(new HashSet<>(Arrays.asList(INSTANCE.getString(), INSTANCE.getString2())), set);
}
@Test
public void testThrowsChecked() throws Exception {
assertThrows(Exception.class, () -> MethodInvokers.asFailableFunction(getMethodForGetStringThrowsChecked()).apply(INSTANCE));
}
@Test
public void testToString() throws SecurityException, ReflectiveOperationException {
// Should not blow up and must return _something_
assertFalse(MethodInvokers.asFailableFunction(getMethodForGetString()).toString().isEmpty());
}
}
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