From 7d0cb000e818b3fc9c60cd93ac02efc48e54628f Mon Sep 17 00:00:00 2001
From: Rangi <sylvie.oukaour+rangi42@gmail.com>
Date: Sat, 5 Sep 2026 14:15:57 -0400
Subject: [PATCH] Specify `COLUMNS` in test scripts for consistent output

---
 test/asm/test.sh  | 4 ++++
 test/fix/test.sh  | 4 ++++
 test/gfx/test.sh  | 6 ++++++
 test/link/test.sh | 7 ++++++-
 4 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/test/asm/test.sh b/test/asm/test.sh
index 9d03bb31..7b6b58d1 100755
--- a/test/asm/test.sh
+++ b/test/asm/test.sh
@@ -2,6 +2,10 @@
 
 export LC_ALL=C
 
+# Screen width for help/usage text (for reproducible test results)
+export COLUMNS=79
+shopt -u checkwinsize # Prevent subsequent commands from resetting `COLUMNS`
+
 # Game Boy release date, 1989-04-21T12:34:56Z (for reproducible test results)
 export SOURCE_DATE_EPOCH=609165296
 
diff --git a/test/fix/test.sh b/test/fix/test.sh
index f18ef905..7c48a24d 100755
--- a/test/fix/test.sh
+++ b/test/fix/test.sh
@@ -2,6 +2,10 @@
 
 export LC_ALL=C
 
+# Screen width for help/usage text (for reproducible test results)
+export COLUMNS=79
+shopt -u checkwinsize # Prevent subsequent commands from resetting `COLUMNS`
+
 tmpdir="$(mktemp -d)"
 # shellcheck disable=SC2064 # (Immediate expansion is the desired behavior.)
 trap "cd; rm -rf ${tmpdir@Q}" EXIT
diff --git a/test/gfx/test.sh b/test/gfx/test.sh
index f3cc5f09..ae608ad4 100755
--- a/test/gfx/test.sh
+++ b/test/gfx/test.sh
@@ -3,6 +3,12 @@
 [[ -e ./rgbgfx_test ]] || make -C ../.. test/gfx/rgbgfx_test Q= ${CXX:+"CXX=$CXX"} || exit
 [[ -e ./randtilegen ]] || make -C ../.. test/gfx/randtilegen Q= ${CXX:+"CXX=$CXX"} || exit
 
+export LC_ALL=C
+
+# Screen width for help/usage text (for reproducible test results)
+export COLUMNS=79
+shopt -u checkwinsize # Prevent subsequent commands from resetting `COLUMNS`
+
 errtmp="$(mktemp)"
 
 # shellcheck disable=SC2064 # (Immediate expansion is the desired behavior.)
diff --git a/test/link/test.sh b/test/link/test.sh
index fe1cb17b..73c13ab3 100755
--- a/test/link/test.sh
+++ b/test/link/test.sh
@@ -1,8 +1,13 @@
 #!/usr/bin/env bash
 
-export LC_ALL=C
 set -o pipefail
 
+export LC_ALL=C
+
+# Screen width for help/usage text (for reproducible test results)
+export COLUMNS=79
+shopt -u checkwinsize # Prevent subsequent commands from resetting `COLUMNS`
+
 otemp="$(mktemp)"
 gbtemp="$(mktemp)"
 gbtemp2="$(mktemp)"