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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.io.function;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.util.concurrent.atomic.AtomicLong;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
/**
* Tests {@link IOLongSupplier}.
*/
public class IOLongSupplierTest {
private AtomicLong atomicLong;
private long getThrowsIO(final IOLongSupplier supplier) throws IOException {
return supplier.getAsLong();
}
private long getThrowsNone(final IOLongSupplier supplier) {
return supplier.asSupplier().getAsLong();
}
@BeforeEach
public void initEach() {
atomicLong = new AtomicLong();
}
@Test
public void testAsSupplier() {
assertThrows(UncheckedIOException.class, () -> TestConstants.THROWING_IO_LONG_SUPPLIER.asSupplier().getAsLong());
assertEquals(1L, getThrowsNone(() -> TestUtils.compareAndSetThrowsIO(atomicLong, 1L)));
assertEquals(1L, atomicLong.get());
assertNotEquals(TestConstants.THROWING_IO_LONG_SUPPLIER.asSupplier(), TestConstants.THROWING_IO_LONG_SUPPLIER.asSupplier());
}
@Test
public void testGet() throws IOException {
assertThrows(IOException.class, () -> TestConstants.THROWING_IO_LONG_SUPPLIER.getAsLong());
assertThrows(IOException.class, () -> {
throw new IOException();
});
assertEquals(1L, getThrowsIO(() -> TestUtils.compareAndSetThrowsIO(atomicLong, 1L)));
assertEquals(1L, atomicLong.get());
}
}
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