From 36d32af6da4f910954e60190f850b55c3faeeaf9 Mon Sep 17 00:00:00 2001
From: Ichiroh Takiguchi <33543753+takiguc@users.noreply.github.com>
Date: Wed, 8 Jun 2022 02:48:24 +0900
Subject: [PATCH] MBCS testcases may not work as expected if LC_ALL is defined
 or fallback encoding is UTF-8 (#3716)

---
 functional/MBCS_Tests/StAX/resultCheck.pl     | 12 ++++++++++--
 functional/MBCS_Tests/i18n/test.pl            | 12 ++++++++++--
 functional/MBCS_Tests/locale_matching/test.pl | 12 ++++++++++--
 functional/MBCS_Tests/nio/test.sh             |  4 +---
 functional/MBCS_Tests/tools/check_env_unix.sh |  9 +++++++++
 5 files changed, 40 insertions(+), 9 deletions(-)

diff --git a/functional/MBCS_Tests/StAX/resultCheck.pl b/functional/MBCS_Tests/StAX/resultCheck.pl
index 0eecb9f13b..000cae685b 100755
--- a/functional/MBCS_Tests/StAX/resultCheck.pl
+++ b/functional/MBCS_Tests/StAX/resultCheck.pl
@@ -25,9 +25,17 @@
 
 $OS=$^O; #OS name
 chomp($OS);
-$SYSENC=`locale charmap`;
+undef $ENV{'LC_ALL'};
+$SYSENC=`locale charmap 2>&1`;
+$lang = $ENV{'LANG'};
+if (index($SYSENC," ") > -1) {
+    for($i = 0; $i < 4; $i+=1) {
+        ok(1 == 1,"skip");
+    }
+    print "SKIPPED! $lang is not supported.\n";
+    exit(0);
+}
 chomp($SYSENC);
-$lang = $ENV{LANG};
 $lang =~ s/\..*$//;
 $FULLLANG = $OS."_".$lang.".".$SYSENC;
 undef %LOC;
diff --git a/functional/MBCS_Tests/i18n/test.pl b/functional/MBCS_Tests/i18n/test.pl
index c958da2a31..eb5ab5d00f 100755
--- a/functional/MBCS_Tests/i18n/test.pl
+++ b/functional/MBCS_Tests/i18n/test.pl
@@ -20,9 +20,17 @@
 
 $OS=$^O; #OS name
 chomp($OS);
-$SYSENC=`locale charmap`;
+undef $ENV{'LC_ALL'};
+$SYSENC=`locale charmap 2>&1`;
+$lang = $ENV{'LANG'};
+if (index($SYSENC," ") > -1) {
+    for($i = 0; $i < 3; $i+=1) {
+        ok(1 == 1,"skip");
+    }
+    print "SKIPPED! $lang is not supported.\n";
+    exit(0);
+}
 chomp($SYSENC);
-$lang = $ENV{LANG};
 $i = index($lang,".");
 if ($i == -1) {
     $i = length($lang);
diff --git a/functional/MBCS_Tests/locale_matching/test.pl b/functional/MBCS_Tests/locale_matching/test.pl
index a8181e06a9..ba2d8d5d07 100755
--- a/functional/MBCS_Tests/locale_matching/test.pl
+++ b/functional/MBCS_Tests/locale_matching/test.pl
@@ -22,9 +22,17 @@
 
 $OS=$^O; #OS name
 chomp($OS);
-$SYSENC=`locale charmap`;
+undef $ENV{'LC_ALL'};
+$SYSENC=`locale charmap 2>&1`;
+$lang = $ENV{'LANG'};
+if (index($SYSENC," ") > -1) {
+    for($i = 0; $i < 5; $i+=1) {
+        ok(1 == 1,"skip");
+    }
+    print "SKIPPED! $lang is not supported.\n";
+    exit(0);
+}
 chomp($SYSENC);
-$lang = $ENV{LANG};
 $i = index($lang,".");
 if ($i == -1) {
     $i = length($lang);
diff --git a/functional/MBCS_Tests/nio/test.sh b/functional/MBCS_Tests/nio/test.sh
index 9c25de2f37..f7fced3772 100755
--- a/functional/MBCS_Tests/nio/test.sh
+++ b/functional/MBCS_Tests/nio/test.sh
@@ -19,8 +19,7 @@ FULLLANG=${OS}_${LANG%.*}.${LOC}
 
 BASE=`dirname $0`
 export CLASSPATH=${BASE}/nio.jar
-CHARMAP=${FULLLANG}
-SOURCE="${CHARMAP}.txt"
+. ${BASE}/check_env_unix.sh
 
 if [ "$FULLLANG" = "AIX_Zh_TW.big5" ]; then
   LOC="IBM-950";
@@ -30,7 +29,6 @@ fi
 
 echo "system code page is " ${LOC}
 
-. ${BASE}/check_env_unix.sh
 echo "invoking ReadWriteTest..." 
 ${JAVA_BIN}/java ReadWriteTest ${BASE}/expected_${FULLLANG}.txt ${LOC} converted.txt ${LOC} > log 2>&1
 diff ${BASE}/expected_${FULLLANG}.txt ./converted.txt > diff.txt 2>&1
diff --git a/functional/MBCS_Tests/tools/check_env_unix.sh b/functional/MBCS_Tests/tools/check_env_unix.sh
index 7f430ee54c..2cf20801cd 100755
--- a/functional/MBCS_Tests/tools/check_env_unix.sh
+++ b/functional/MBCS_Tests/tools/check_env_unix.sh
@@ -33,6 +33,15 @@ if [ "x$JAVA_BIN" = "x" ]; then
     fi
 fi
 
+unset LC_ALL
+OS=`uname`
+LOC=`locale charmap 2>&1`
+if [ "${LOC}" != "${LOC%% *}" ]; then
+    FULLLANG=${LANG}
+    showMessage
+fi
+FULLLANG=${OS}_${LANG%.*}.${LOC}
+
 case "${FULLLANG}" in
     "AIX_Ja_JP.IBM-943"|\
     "AIX_ja_JP.IBM-eucJP"|\