test: Add a test of "notmuch show" with a multipart message

This tests "notmuch show" with both --format=text and --format=json on
a message with some non-trivial MIME multipart nesting, (multiple parts
within a multipart/mixed part which is within a multipart/signed part).

The test captures the current behavior (where only the leaf nodes of
the MIME structure are emitted as a flat list---the multipart parts
are effectively ignored). We plan to soon change the json output at
least to emit an actual hierarchy matching the MIME structure, (at
which point we will update this test).

test/multipart

@@ -0,0 +1,84 @@
+#!/bin/bash
+test_description="output of multipart message"
+. ./test-lib.sh
+
+cat <<EOF > ${MAIL_DIR}/multipart
+From: Carl Worth <cworth@cworth.org>
+To: cworth@cworth.org
+Subject: Multipart message
+Date: Tue, 05 Jan 2001 15:43:57 -0000
+User-Agent: Notmuch/0.5 (http://notmuchmail.org) Emacs/23.3.1 (i486-pc-linux-gnu)
+Message-ID: <87liy5ap00.fsf@yoom.home.cworth.org>
+MIME-Version: 1.0
+Content-Type: multipart/signed; boundary="==-=-=";
+	micalg=pgp-sha1; protocol="application/pgp-signature"
+
+--==-=-=
+Content-Type: multipart/mixed; boundary="=-=-="
+
+--=-=-=
+
+This is an inline text part.
+
+--=-=-=
+Content-Disposition: attachment; filename=attachment
+
+This is a text attachment.
+
+--=-=-=
+
+And this message is signed.
+
+-Carl
+
+--=-=-=--
+
+--==-=-=
+Content-Type: application/pgp-signature
+
+-----BEGIN PGP SIGNATURE-----
+Version: GnuPG v1.4.11 (GNU/Linux)
+
+iEYEARECAAYFAk3SA/gACgkQ6JDdNq8qSWj0sACghqVJEQJUs3yV8zbTzhgnSIcD
+W6cAmQE4dcYrx/LPLtYLZm1jsGauE5hE
+=zkga
+-----END PGP SIGNATURE-----
+--==-=-=--
+EOF
+notmuch new > /dev/null
+
+test_begin_subtest "Show multipart MIME message (--format=text)"
+output=$(notmuch show --format=text 'id:87liy5ap00.fsf@yoom.home.cworth.org')
+test_expect_equal "$output" "message{ id:87liy5ap00.fsf@yoom.home.cworth.org depth:0 match:1 filename:/home/cworth/src/notmuch/test/tmp.multipart/mail/multipart
+header{
+Carl Worth <cworth@cworth.org> (2001-01-05) (attachment inbox unread)
+Subject: Multipart message
+From: Carl Worth <cworth@cworth.org>
+To: cworth@cworth.org
+Date: Tue, 05 Jan 2001 15:43:57 -0000
+header}
+body{
+part{ ID: 1, Content-type: text/plain
+This is an inline text part.
+part}
+attachment{ ID: 2, Content-type: text/plain
+Attachment: attachment (text/plain)
+This is a text attachment.
+attachment}
+part{ ID: 3, Content-type: text/plain
+And this message is signed.
+
+-Carl
+part}
+part{ ID: 4, Content-type: application/pgp-signature
+Non-text part: application/pgp-signature
+part}
+body}
+message}"
+
+test_begin_subtest "Show multipart MIME message (--format=json)"
+output=$(notmuch show --format=json 'id:87liy5ap00.fsf@yoom.home.cworth.org')
+test_expect_equal "$output" '[[[{"id": "87liy5ap00.fsf@yoom.home.cworth.org", "match": true, "filename": "/home/cworth/src/notmuch/test/tmp.multipart/mail/multipart", "timestamp": 978709437, "date_relative": "2001-01-05", "tags": ["attachment","inbox","unread"], "headers": {"Subject": "Multipart message", "From": "Carl Worth <cworth@cworth.org>", "To": "cworth@cworth.org", "Cc": "", "Bcc": "", "Date": "Tue, 05 Jan 2001 15:43:57 -0000"}, "body": [{"id": 1, "content-type": "text/plain", "content": "This is an inline text part.\n"}, {"id": 2, "content-type": "text/plain", "filename": "attachment", "content": "This is a text attachment.\n"}, {"id": 3, "content-type": "text/plain", "content": "And this message is signed.\n\n-Carl\n"}, {"id": 4, "content-type": "application/pgp-signature"}]}, []]]]'
+
+test_done
+

test/notmuch-test

@@ -25,6 +25,7 @@ TESTS="
   search-position-overlap-bug
   search-insufficient-from-quoting
   json
+  multipart
   thread-naming
   raw
   reply