package org.apache.logging.log4j.core.net.ssl;/*
 * 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.
 */

import java.util.Arrays;

import org.junit.Test;

import static org.junit.Assert.*;

public class MemoryPasswordProviderTest {
    @Test
    public void testConstructorAllowsNull() {
        assertEquals(null, new MemoryPasswordProvider(null).getPassword());
    }

    @Test
    public void testConstructorDoesNotModifyOriginalParameterArray() {
        final char[] initial = "123".toCharArray();
        new MemoryPasswordProvider(initial);
        assertArrayEquals("123".toCharArray(), initial);
    }

    @Test
    public void testGetPasswordReturnsCopyOfConstructorArray() {
        final char[] initial = "123".toCharArray();
        final MemoryPasswordProvider provider = new MemoryPasswordProvider(initial);
        final char[] actual = provider.getPassword();
        assertArrayEquals("123".toCharArray(), actual);
        assertNotSame(initial, actual);

        Arrays.fill(initial, 'a');
        assertArrayEquals("123".toCharArray(), provider.getPassword());
        assertNotSame(provider.getPassword(), provider.getPassword());
    }
}
