StringToByteBufferAdapterTest.java

/*
 * Copyright 2010-2017 Amazon.com, Inc. or its affiliates. All Rights
 * Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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 com.amazonaws.adapters.types;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

import java.io.IOException;
import java.nio.ByteBuffer;

import org.junit.Test;

public class StringToByteBufferAdapterTest {

    private final StringToByteBufferAdapter adapter = new StringToByteBufferAdapter();

    @Test
    public void nullString_ReturnsNullByteBuffer() {
        assertNull(adapter.adapt(null));
    }

    @Test
    public void emptyString_ReturnsEmptyByteBuffer() throws IOException {
        ByteBuffer byteBuffer = adapter.adapt("");
        assertEquals(0, byteBuffer.remaining());
    }

    @Test
    public void nonEmptyString_ReturnsNonEmptyByteBuffer() throws IOException {
        String source = "foo";
        ByteBuffer byteBuffer = adapter.adapt(source);
        assertEquals(new String(byteBuffer.array()), source);
    }

}