SwitchableInputStreamTest.java

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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.jboss.netty.handler.codec.serialization;

import static org.easymock.EasyMock.*;
import static org.junit.Assert.*;

import java.io.InputStream;

import org.junit.Test;

public class SwitchableInputStreamTest {

    @Test
    public void testSwitchStream() throws Exception {
        SwitchableInputStream sin = new SwitchableInputStream();

        InputStream in1 = createStrictMock(InputStream.class);
        InputStream in2 = createStrictMock(InputStream.class);
        expect(in1.read()).andReturn(1);
        replay(in1, in2);

        sin.switchStream(in1);
        assertEquals(1, sin.read());
        verify(in1, in2);
        reset(in1, in2);

        expect(in2.read()).andReturn(2);
        replay(in1, in2);

        sin.switchStream(in2);
        assertEquals(2, sin.read());
        verify(in1, in2);
    }
}