-output=$(notmuch show --format=json --part=2 'id:87liy5ap00.fsf@yoom.home.cworth.org')
-test_expect_equal "$output" \
-'{"id": 2, "content-type": "multipart/mixed", "content": [{"id": 3, "content-type": "message/rfc822", "content": [{"id": 4, "content-type": "text/html"}]}, {"id": 5, "content-type": "text/plain", "filename": "attachment", "content": "This is a text attachment.\n"}, {"id": 6, "content-type": "text/plain", "content": "And this message is signed.\n\n-Carl\n"}]}'
-
-test_begin_subtest "--format=json --part=3, rfc822 multipart"
-output=$(notmuch show --format=json --part=3 'id:87liy5ap00.fsf@yoom.home.cworth.org')
-test_expect_equal "$output" \
-'{"id": 3, "content-type": "message/rfc822", "content": [{"id": 4, "content-type": "text/html"}]}'
-
-test_begin_subtest "--format=json --part=4, html part"
-output=$(notmuch show --format=json --part=4 'id:87liy5ap00.fsf@yoom.home.cworth.org')
-test_expect_equal "$output" \
-'{"id": 4, "content-type": "text/html"}'
-
-test_begin_subtest "--format=json --part=5, inline attachment"
-output=$(notmuch show --format=json --part=5 'id:87liy5ap00.fsf@yoom.home.cworth.org')
-test_expect_equal "$output" \
-'{"id": 5, "content-type": "text/plain", "filename": "attachment", "content": "This is a text attachment.\n"}'
-
-test_begin_subtest "--format=json --part=6, plain text part"
-output=$(notmuch show --format=json --part=6 'id:87liy5ap00.fsf@yoom.home.cworth.org')
-test_expect_equal "$output" \
-'{"id": 6, "content-type": "text/plain", "content": "And this message is signed.\n\n-Carl\n"}'
-
-test_begin_subtest "--format=json --part=7, pgp signature (unverified)"
-output=$(notmuch show --format=json --part=7 'id:87liy5ap00.fsf@yoom.home.cworth.org')
-test_expect_equal "$output" \
-'{"id": 7, "content-type": "application/pgp-signature"}'
+notmuch show --format=json --part=2 'id:87liy5ap00.fsf@yoom.home.cworth.org' >OUTPUT
+cat <<EOF >EXPECTED
+{"id": 2, "content-type": "multipart/mixed", "content": [
+{"id": 3, "content-type": "message/rfc822", "content": [{"headers": {"Subject": "html message", "From": "Carl Worth <cworth@cworth.org>", "To": "cworth@cworth.org", "Date": "Fri, 05 Jan 2001 15:42:57 +0000"}, "body": [
+{"id": 4, "content-type": "multipart/alternative", "content": [
+{"id": 5, "content-type": "text/html", "content-length": 71},
+{"id": 6, "content-type": "text/plain", "content": "This is an embedded message, with a multipart/alternative part.\n"}]}]}]},
+{"id": 7, "content-type": "text/plain", "filename": "attachment", "content": "This is a text attachment.\n"},
+{"id": 8, "content-type": "text/plain", "content": "And this message is signed.\n\n-Carl\n"}]}
+EOF
+test_expect_equal_json "$(cat OUTPUT)" "$(cat EXPECTED)"
+
+test_begin_subtest "--format=json --part=3, rfc822 part"
+notmuch show --format=json --part=3 'id:87liy5ap00.fsf@yoom.home.cworth.org' >OUTPUT
+cat <<EOF >EXPECTED
+{"id": 3, "content-type": "message/rfc822", "content": [{"headers": {"Subject": "html message", "From": "Carl Worth <cworth@cworth.org>", "To": "cworth@cworth.org", "Date": "Fri, 05 Jan 2001 15:42:57 +0000"}, "body": [
+{"id": 4, "content-type": "multipart/alternative", "content": [
+{"id": 5, "content-type": "text/html", "content-length": 71},
+{"id": 6, "content-type": "text/plain", "content": "This is an embedded message, with a multipart/alternative part.\n"}]}]}]}
+EOF
+test_expect_equal_json "$(cat OUTPUT)" "$(cat EXPECTED)"
+
+test_begin_subtest "--format=json --part=4, rfc822's multipart/alternative"
+notmuch show --format=json --part=4 'id:87liy5ap00.fsf@yoom.home.cworth.org' >OUTPUT
+cat <<EOF >EXPECTED
+{"id": 4, "content-type": "multipart/alternative", "content": [
+{"id": 5, "content-type": "text/html", "content-length": 71},
+{"id": 6, "content-type": "text/plain", "content": "This is an embedded message, with a multipart/alternative part.\n"}]}
+EOF
+test_expect_equal_json "$(cat OUTPUT)" "$(cat EXPECTED)"
+
+test_begin_subtest "--format=json --part=5, rfc822's html part"
+notmuch show --format=json --part=5 'id:87liy5ap00.fsf@yoom.home.cworth.org' >OUTPUT
+cat <<EOF >EXPECTED
+{"id": 5, "content-type": "text/html", "content-length": 71}
+EOF
+test_expect_equal_json "$(cat OUTPUT)" "$(cat EXPECTED)"
+
+test_begin_subtest "--format=json --part=6, rfc822's text part"
+notmuch show --format=json --part=6 'id:87liy5ap00.fsf@yoom.home.cworth.org' >OUTPUT
+cat <<EOF >EXPECTED
+{"id": 6, "content-type": "text/plain", "content": "This is an embedded message, with a multipart/alternative part.\n"}
+EOF
+test_expect_equal_json "$(cat OUTPUT)" "$(cat EXPECTED)"
+
+test_begin_subtest "--format=json --part=7, inline attachment"
+notmuch show --format=json --part=7 'id:87liy5ap00.fsf@yoom.home.cworth.org' >OUTPUT
+cat <<EOF >EXPECTED
+{"id": 7, "content-type": "text/plain", "filename": "attachment", "content": "This is a text attachment.\n"}
+EOF
+test_expect_equal_json "$(cat OUTPUT)" "$(cat EXPECTED)"
+
+test_begin_subtest "--format=json --part=8, plain text part"
+notmuch show --format=json --part=8 'id:87liy5ap00.fsf@yoom.home.cworth.org' >OUTPUT
+cat <<EOF >EXPECTED
+{"id": 8, "content-type": "text/plain", "content": "And this message is signed.\n\n-Carl\n"}
+EOF
+test_expect_equal_json "$(cat OUTPUT)" "$(cat EXPECTED)"
+
+test_begin_subtest "--format=json --part=9, pgp signature (unverified)"
+notmuch show --format=json --part=9 'id:87liy5ap00.fsf@yoom.home.cworth.org' >OUTPUT
+cat <<EOF >EXPECTED
+{"id": 9, "content-type": "application/pgp-signature", "content-length": 197}
+EOF
+test_expect_equal_json "$(cat OUTPUT)" "$(cat EXPECTED)"