/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.io;

import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.verify;
import static org.neo4j.io.IOUtils.closeAll;

import java.io.IOException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;

class IOUtilsTest {
    private final AutoCloseable faultyClosable = Mockito.mock(AutoCloseable.class);
    private final AutoCloseable goodClosable1 = Mockito.mock(AutoCloseable.class);
    private final AutoCloseable goodClosable2 = Mockito.mock(AutoCloseable.class);

    @BeforeEach
    void setUp() throws Exception {
        doThrow(new IOException("Faulty closable")).when(faultyClosable).close();
    }

    @Test
    void closeAllSilently() throws Exception {
        IOUtils.closeAllSilently(goodClosable1, faultyClosable, goodClosable2);

        verify(goodClosable1).close();
        verify(goodClosable2).close();
        verify(faultyClosable).close();
    }

    @Test
    void closeAllAndRethrowException() {
        final var e = assertThrows(IOException.class, () -> closeAll(goodClosable1, faultyClosable, goodClosable2));
        assertThat(e.getMessage()).isEqualTo("Exception closing multiple resources.");
        assertThat(e.getCause()).isInstanceOf(IOException.class);
    }

    @Test
    void closeMustIgnoreNullResources() throws Exception {
        AutoCloseable a = () -> {};
        AutoCloseable b = null;
        AutoCloseable c = () -> {};
        IOUtils.close(IOException::new, a, b, c);
    }
}
