'For a I{multipart/*} message, L{imap4.getBodyStructure} returns a list
containing the body structure information for each part of the message
followed by an element giving the MIME subtype of the message.'

def test_multiPart(self):

    oneSubPart = FakeyMessage({'content-type': 'image/jpeg;    x=y', 'content-id': 'some    kind    of    id', 'content-description': 'great    justice', 'content-transfer-encoding': 'maximum'}, (), '', 'hello    world', 123, None)
    anotherSubPart = FakeyMessage({'content-type': 'text/plain;    charset=us-ascii'}, (), '', 'some    stuff', 321, None)
    container = FakeyMessage({'content-type': 'multipart/related'}, (), '', '', 555, [oneSubPart, anotherSubPart])
    self.assertEqual([imap4.getBodyStructure(oneSubPart), imap4.getBodyStructure(anotherSubPart), 'related'], imap4.getBodyStructure(container))
