[groff] 02/11: [me]: Add regression test for Savannah #55081.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit d86b2ab8c788774fe1917ef3c7729fa7eb95028f
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Fri Aug 13 08:48:10 2021 +1000

    [me]: Add regression test for Savannah #55081.
    
    * tmac/tests/e_columns-work-on-long-pages.sh: Test it.
    * tmac/tmac.am (tmac_TESTS): Run test.
---
 ChangeLog                                  |  7 ++++++
 tmac/tests/e_columns-work-on-long-pages.sh | 38 ++++++++++++++++++++++++++++++
 tmac/tmac.am                               |  1 +
 3 files changed, 46 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 9da1a7a..0d54411 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2021-08-13  G. Branden Robinson <g.branden.robinson@gmail.com>
 
+       Add regression test for Savannah #55081.
+
+       * tmac/tests/e_columns-work-on-long-pages.sh: Test it.
+       * tmac/tmac.am (tmac_TESTS): Run test.
+
+2021-08-13  G. Branden Robinson <g.branden.robinson@gmail.com>
+
        * tmac/e.tmac: Validate page length to prevent too-short paper
        formats from causing traps to call each other until the input
        stack overflows.  The minimum is 14v.
diff --git a/tmac/tests/e_columns-work-on-long-pages.sh 
b/tmac/tests/e_columns-work-on-long-pages.sh
new file mode 100755
index 0000000..2ee9144
--- /dev/null
+++ b/tmac/tests/e_columns-work-on-long-pages.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# Copyright (C) 2021 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="${abs_top_builddir:-.}/test-groff"
+
+# Regression-test Savannah #55081.
+#
+# Ensure that long page lengths don't break columnation.
+
+EXAMPLE=\
+'.pl 159v
+.2c
+Column 1.
+.bc
+Column 2.'
+
+echo "$EXAMPLE" \
+    | "$groff" -Tascii -P-cbou -me \
+    | grep -Eqx 'Column 1\. +Column 2\.'
+
+# vim:set ai et sw=4 ts=4 tw=72:
diff --git a/tmac/tmac.am b/tmac/tmac.am
index 8c0c533..5f49274 100644
--- a/tmac/tmac.am
+++ b/tmac/tmac.am
@@ -177,6 +177,7 @@ tmac_TESTS = \
   tmac/tests/doc_accept-mixed-case-section-headings.sh \
   tmac/tests/doc_do-not-loop-infinitely-when-shortening-headers.sh \
   tmac/tests/doc_smoke-test.sh \
+  tmac/tests/e_columns-work-on-long-pages.sh \
   tmac/tests/s_IP-indents-using-paragraph-type-size.sh \
   tmac/tests/s_IP-respects-inter-sentence-space-in-tags.sh \
   tmac/tests/s_PN-works.sh \