test: minor fixes for msys

* test: ensure a non-empty locale
* test (ble/util/readlink): work around msys symlinks
* test (ble/util/declare-print-definitions): skip array assignments involing CR in msys
* test (ble/util/is-stdin-ready): skip test in the CI msys
* main (bind): suppress non-interactive warning in msys

ble.pp

@@ -541,8 +541,8 @@ function ble/base/recover-bash-options {
 
 # WA #D1534 workaround for msys2 .inputrc
 if [[ $OSTYPE == msys* ]]; then
-  [[ $(builtin bind -m emacs -p | grep '"\\C-?"') == '"\C-?": backward-kill-line' ]] &&
-    builtin bind -m emacs '"\C-?": backward-delete-char'
+  [[ $(builtin bind -m emacs -p 2>/dev/null | grep '"\\C-?"') == '"\C-?": backward-kill-line' ]] &&
+    builtin bind -m emacs '"\C-?": backward-delete-char' 2>/dev/null
 fi
 
 if [[ ! -o emacs && ! -o vi && ! $_ble_init_command ]]; then
@@ -2171,6 +2171,8 @@ function ble/base/process-blesh-arguments {
 function ble/base/sub:test {
   local error= logfile=
 
+  [[ ${LANG-} ]] || local LANG=en_US.UTF-8
+
   ble-import lib/core-test
 
   if (($#==0)); then

lib/test-main.sh

@@ -30,6 +30,11 @@ ble/test/start-section 'ble/main' 19
 
 # ble/util/readlink
 (
+  if [[ $OSTYPE == msys* ]]; then
+    ble/path#append MSYS winsymlinks
+    export MSYS
+  fi
+
   ble/bin/.freeze-utility-path readlink ls
   function ble/test:readlink.impl1 {
     ret=$1
@@ -56,10 +61,12 @@ ble/test/start-section 'ble/main' 19
     ret="${PWD%/}/ab/cd/ef/file.txt"
 
   # loop symbolic links
+  touch loop1.sh
   ln -s loop1.sh loop0.sh
-  ln -s loop2.sh loop1.sh
-  ln -s loop3.sh loop2.sh
   ln -s loop1.sh loop3.sh
+  rm loop1.sh
+  ln -s loop3.sh loop2.sh
+  ln -s loop2.sh loop1.sh
   for impl in impl1 impl2; do
     ble/test "ble/test:readlink.$impl loop0.sh" ret='loop1.sh'
   done

lib/test-util.sh

@@ -1414,7 +1414,8 @@ function is-global() (readonly "$1"; ! local "$1" 2>/dev/null)
 if ((_ble_bash>=40000)); then
   (
     ble/test 'echo 1 | { sleep 0.01; ble/util/is-stdin-ready; }'
-    ble/test 'sleep 0.01 | ble/util/is-stdin-ready' exit=1
+    [[ ${CI-} == true && ${GITHUB_ACTION-} && $OSTYPE == msys* ]] ||
+      ble/test 'sleep 0.01 | ble/util/is-stdin-ready' exit=1
     ble/test 'ble/util/is-stdin-ready <<< a'
     ble/test 'ble/util/is-stdin-ready <<< ""'
 
@@ -1515,6 +1516,10 @@ ble/test ble/util/is-running-in-subshell exit=1
     ble/util/declare-print-definitions a0 a1 a{2..8} 2>/dev/null)"
 
   for name in a0 a1 a{2..8}; do
+    # WA: msys bash では何故か配列代入形式 arr2=("${arr1[@]}") で要素に含まれる
+    # \r が全て消滅する。仕方がないのでスキップする。
+    [[ $name == a5 && $OSTYPE == msys* ]] && continue
+
     stdout_var=s$name
     ble/test "status $name" ret="${!stdout_var}"
   done