1 files changed, 74 insertions, 0 deletions
diff --git a/tmac/tests/doc_Nm-works.sh b/tmac/tests/doc_Nm-works.sh
new file mode 100755
index 0000000..a27e931
--- /dev/null
+++ b/tmac/tests/doc_Nm-works.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+#
+# Copyright (C) 2022 Free Software Foundation, Inc.
+#
+# This file is part of groff.
+#
+# groff is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# groff is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+groff="${abs_top_builddir:-.}/test-groff"
+
+fail=
+
+wail () {
+    echo "...FAILED" >&2
+    fail=yes
+}
+
+# Unit test `Nm` macro (and regression-test Savannah #63377).
+
+input='.Dd 2022-11-17
+.Dt foo 1
+.Os "groff test suite"
+.Sh Name
+.Nm foo
+.Nd frobnicate a bar
+.Sh Description
+.Nm
+is a program.'
+
+echo "checking Nm's interpolation of text after initial call" >&2
+output=$(printf "%s\n" "$input" | "$groff" -Tascii -P-cbou -mdoc)
+echo "$output"
+echo "$output" | grep -q 'foo is a program\.' || wail
+
+# Handle multiple declarations in "Name" section.
+
+input='.Dd 2022-11-17
+.Dt trig.h 3
+.Os "groff test suite"
+.Sh Name
+.Nm sin ,
+.Nm cos ,
+.Nm tan
+.Nd trigonometric functions
+.Sh Description
+.Nm
+returns the sine of its argument,
+an angle
+.Ms theta .'
+
+output=$(printf "%s\n" "$input" | "$groff" -Tascii -P-cbou -mdoc)
+echo "$output"
+
+echo "checking Nm behavior when called multiple times (Name)" >&2
+echo "$output" | grep -q 'sin, cos, tan -- trigonometric' || wail
+
+echo "checking Nm behavior when called multiple times (Description)" >&2
+echo "$output" | grep -q 'sin returns the sine' || wail
+
+test -z "$fail"
+
+# vim:set ai et sw=4 ts=4 tw=72: