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 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
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 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
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package org.apache.james.server.core;

import static org.assertj.core.api.Assertions.assertThat;

import java.io.IOException;

import javax.mail.MessagingException;

import org.apache.james.util.io.ZeroedInputStream;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;

public class MimeMessageInputStreamSourceTest {

    private static final int _1M = 1024 * 1024;
    private static final int _10KB = 10 * 1024;
    private MimeMessageInputStreamSource testee;

    @AfterEach
    public void tearDown() {
        testee.dispose();
    }
    
    @Test
    public void streamWith1MBytesShouldBeReadable() throws MessagingException, IOException {
        testee = new MimeMessageInputStreamSource("myKey", new ZeroedInputStream(_1M));
        assertThat(testee.getInputStream()).hasSameContentAs(new ZeroedInputStream(_1M));
    }
    
    @Test
    public void streamWith10KBytesShouldBeReadable() throws MessagingException, IOException {
        testee = new MimeMessageInputStreamSource("myKey", new ZeroedInputStream(_10KB));
        assertThat(testee.getInputStream()).hasSameContentAs(new ZeroedInputStream(_10KB));
    }

    @Test
    public void streamWithVeryShortNameShouldWork() throws MessagingException, IOException {
        String veryShortName = "1";
        testee = new MimeMessageInputStreamSource(veryShortName, new ZeroedInputStream(_1M));
        assertThat(testee.getInputStream()).isNotNull();
    }
}
