expected=$MH_TEST_DIR/$$.expected
actual=$MH_TEST_DIR/$$.actual
+mhn_defaults="$MH_INST_DIR${nmhetcdir}/mhn.defaults"
+
+if grep mhfixmsg-format-text/html "${mhn_defaults}" >/dev/null; then
+ can_reformat_texthtml=1
+ if grep 'mhfixmsg-format-text/html.*w3m' "${mhn_defaults}" \
+ >/dev/null; then
+ #### w3m uses $HOME/.w3m/, and creates it if it doesn't exist. To
+ #### support testing with non-writeable $HOME, and to not leave
+ #### relics from this test if it is writeable but doesn't already
+ #### have a .w3m, and to not depend on whatever is in that if it
+ #### does already exist, overwrite $HOME if using w3m.
+ HOME="$MHTMPDIR"; export HOME
+ fi
+else
+ echo "$0: skipping html checks because no text browser was found"
+ can_reformat_texthtml=0
+fi
+
# Write message with a text/plain subpart.
msgfile=`mhpath new`
msgnum=`basename $msgfile`
# Write the expected output.
cat > $expected <<EOF
-part 1.1 text/plain 29
+[ Message inbox:11 ]
+[ part 1.1 - text/plain - 29B ]
This is the text/plain part.
EOF
# check it
+start_test 'text/plain part'
run_prog mhshow -part 1.1 -form mhl.null $msgnum > $actual 2>&1
-check "$expected" "$actual"
+check "$expected" "$actual" : part 1.1
+
+
+# tests of -part/-type/-prefer
+
+cat > $msgfile <<EOF
+To: example@example.org
+From: someone <someone@example.com>
+Subject: mhshow -part/-type/-prefer test
+Date: Thu, 29 Jan 2015 18:12:21 +0000 (GMT)
+Content-Type: multipart/mixed; boundary="BoundaryMixed"
+
+--BoundaryMixed
+Content-type: multipart/alternative;
+ boundary="BoundaryAlternative1"
+
+--BoundaryAlternative1
+Content-type: text/plain; charset=US-ASCII; format=flowed
+Content-transfer-encoding: 8bit
+
+This is the body text/plain part.
+--BoundaryAlternative1
+Content-type: multipart/related;
+ boundary="BoundaryAlternative2"; type="text/html"
+
+--BoundaryAlternative2
+Content-type: text/html; CHARSET=US-ASCII
+Content-transfer-encoding: quoted-printable
+
+<html><body><div><span style=3D"line-height: 1.5;">
+This is the text/html body part.
+</span></div></body></html>
+
+--BoundaryAlternative2--
+
+--BoundaryAlternative1--
+
+--BoundaryMixed
+Content-Type: text/plain; charset="us-ascii"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+Content-Disposition: inline
+
+_______________________________________________
+This is the final text/plain signature part.
+
+--BoundaryMixed--
+EOF
+
+# Write the expected output.
+if [ $can_reformat_texthtml -eq 1 ]; then
+ cat > $expected <<EOF
+[ Message inbox:11 ]
+[ part 1.1.1 - text/html - 111B ]
+This is the text/html body part.
+EOF
+
+ # check it
+ start_test 'text/html part'
+ # The sed command removes blank lines and leading space that lynx inserts.
+ run_prog mhshow -part 1.1.1 -form mhl.null $msgnum |
+ sed '/^$/D; s/^ *//;' > $actual 2>&1
+ check "$expected" "$actual" : part 1.1.1
+fi
+
+# Write the expected output.
+cat > $expected <<EOF
+[ Message inbox:11 ]
+[ part 1.2 - text/plain - 33B ]
+This is the body text/plain part.
+EOF
+
+# check it
+start_test 'text/plain alternative part'
+run_prog mhshow -part 1.2 -form mhl.null $msgnum > $actual 2>&1
+check "$expected" "$actual" : part 1.2
+
+# Write the expected output.
+cat > $expected <<EOF
+[ Message inbox:11 ]
+[ part 1.1 - text/plain - 33B ]
+This is the body text/plain part.
+EOF
+
+# check it
+start_test 'conflicting text/plain, part 1 switches'
+run_prog mhshow -prefer text/plain -part 1 -form mhl.null $msgnum > $actual 2>&1
+check "$expected" "$actual" : part conflicting text/plain, part 1 switches
+
+# Write the expected output.
+cat > $expected <<EOF
+[ Message inbox:11 ]
+[ part 2 - text/plain - 93B ]
+_______________________________________________
+This is the final text/plain signature part.
+EOF
+
+# check it
+start_test 'final text/plain part'
+run_prog mhshow -part 2 -form mhl.null $msgnum > $actual 2>&1
+check "$expected" "$actual" : part 2
+
+# Write the expected output.
+cat > $expected <<EOF
+[ Message inbox:11 ]
+[ part 1.2 - text/plain - 33B ]
+This is the body text/plain part.
+[ part 2 - text/plain - 93B ]
+_______________________________________________
+This is the final text/plain signature part.
+EOF
+
+# check it
+start_test 'all text/plain parts'
+run_prog mhshow -type text/plain -form mhl.null $msgnum > $actual 2>&1
+check "$expected" "$actual" : type text/plain
+
+# Write the expected output.
+cat > $expected <<EOF
+[ Message inbox:11 ]
+[ part 1.1 - text/plain - 33B ]
+This is the body text/plain part.
+[ part 2 - text/plain - 93B ]
+_______________________________________________
+This is the final text/plain signature part.
+EOF
+
+start_test 'prefer text/plain'
+run_prog mhshow -prefer text/plain -form mhl.null $msgnum > $actual 2>&1
+check "$expected" "$actual" : prefer text/plain
+
+finish_test
exit $failed