dom/src/test/java/org/apache/james/mime4j/message/BodyPartBuilderTest.java

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package org.apache.james.mime4j.message;

import java.io.InputStream;
import java.util.List;

import org.apache.james.mime4j.Charsets;
import org.apache.james.mime4j.dom.Body;
import org.apache.james.mime4j.dom.TextBody;
import org.apache.james.mime4j.dom.field.ContentTypeField;
import org.apache.james.mime4j.stream.Field;
import org.junit.Assert;
import org.junit.Test;
import org.mockito.Mockito;

public class BodyPartBuilderTest {

    @Test
    public void testSetBody() throws Exception {
        BodyPartBuilder builder = BodyPartBuilder.create();

        Body body = BasicBodyFactory.INSTANCE.textBody("test");
        Assert.assertNull(body.getParent());

        builder.setBody(body);
        final BodyPart bodyPart = builder.build();
        Assert.assertSame(body, bodyPart.getBody());
        Assert.assertSame(bodyPart, body.getParent());
    }

    @Test
    public void testSetTextBody() throws Exception {
        BodyPartBuilder builder = BodyPartBuilder.create();

        BodyFactory bodyFactory = Mockito.spy(new BasicBodyFactory());
        builder.use(bodyFactory);

        builder.setBody("blah", Charsets.ISO_8859_1);
        Assert.assertEquals("text/plain", builder.getMimeType());
        Assert.assertEquals("ISO-8859-1", builder.getCharset());

        builder.setBody("blah", "stuff", Charsets.ISO_8859_1);
        Assert.assertEquals("text/stuff", builder.getMimeType());
        Assert.assertEquals("ISO-8859-1", builder.getCharset());

        builder.setBody("blah", "stuff", null);
        Assert.assertEquals("text/stuff", builder.getMimeType());
        Assert.assertEquals(null, builder.getCharset());

        BodyPart bodyPart = builder.build();
        Assert.assertNotNull(bodyPart);
        Body body = bodyPart.getBody();
        Assert.assertSame(bodyPart, body.getParent());
        ContentTypeField field = (ContentTypeField) bodyPart.getHeader().getField("Content-Type");
        Assert.assertEquals("text/stuff", field.getMimeType());
        Assert.assertEquals(null, field.getCharset());

        Mockito.verify(bodyFactory, Mockito.times(2)).textBody(
                Mockito.<InputStream>any(), Mockito.eq("ISO-8859-1"));
        Mockito.verify(bodyFactory, Mockito.times(1)).textBody(
                Mockito.<InputStream>any(),  Mockito.isNull(String.class));

    }

    @Test
    public void testSetBinaryBody() throws Exception {
        BodyPartBuilder builder = BodyPartBuilder.create();

        BodyFactory bodyFactory = Mockito.spy(new BasicBodyFactory());
        builder.use(bodyFactory);

        builder.setBody(new byte[] {1,2,3}, "some/stuff");
        Assert.assertEquals("some/stuff", builder.getMimeType());
        Assert.assertEquals(null, builder.getCharset());

        builder.setBody(new byte[] {1,2,3,4}, null);
        Assert.assertEquals("application/octet-stream", builder.getMimeType());
        Assert.assertEquals(null, builder.getCharset());

        BodyPart bodyPart = builder.build();
        Assert.assertNotNull(bodyPart);
        Body body = bodyPart.getBody();
        Assert.assertSame(bodyPart, body.getParent());
        ContentTypeField field = (ContentTypeField) bodyPart.getHeader().getField("Content-Type");
        Assert.assertEquals("application/octet-stream", field.getMimeType());
        Assert.assertEquals(null, field.getCharset());

        Mockito.verify(bodyFactory, Mockito.times(2)).binaryBody(Mockito.<InputStream>any());
    }

}