diff --git a/lib/ansi.bash b/lib/ansi.bash
index a371d08..9c9c3d1 100644
--- a/lib/ansi.bash
+++ b/lib/ansi.bash
@@ -57,8 +57,8 @@ function _style_fg {
 function _style_bg {
   if [[ -n "$1" ]]; then
     [[ -v BG_COLORS[$1] ]] && echo "${BG_COLORS[$1]}" && return
-    >&2 echo "unknown BG value: $1"
-    false
+    >&2 echo "unknown BG value: $1" && return 1
+    # false
   fi
 }
 
diff --git a/test/ansi.test.bash b/test/ansi.test.bash
index d8b5eed..f2a1090 100755
--- a/test/ansi.test.bash
+++ b/test/ansi.test.bash
@@ -2,7 +2,32 @@
 
 . "$MIAOU_BASH_DIR/lib/ansi.bash"
 
-content=$(BG=RED FG=BLACK style_ansi "SUBSHELL TERM")
-content=$(PADDING=2 BG=RED style_padding "$content")
-detail=$(PADDING=1 style_padding "blabla")
-PADDING=2 BG=RED FG=BLACK style_block "$content$detail"
+TYPE='SUBSHELL TERM'
+PAYLOAD='blabla'
+
+stack_sources=('file.bash' './lib/utility.bash' 'file.bash')
+stack_lines=(18 56 12)
+stack_functions=('f2' 'f1' '<main>')
+
+BG=RED
+FG=BLACK
+PADDING=2
+content=$(style_ansi "${TYPE}")
+content=$(style_padding "$content")
+detail=$(BG=BLACK style_padding "${PAYLOAD}")
+style_block "$content$detail"
+
+# block continuation
+tput sc
+tput cuu 1
+style_ansi "\t╦"
+tput rc
+
+style_ansi "\t║"
+echo
+
+for i in "${!stack_sources[@]}"; do
+  style_ansi "\t╟"
+  # echo "─⟶   ${sources[$i]}:${lines[$i]} in ${functions[$i]}"
+  printf "─⟶ %40s\t%s\n" "${stack_sources[$i]}:${stack_lines[$i]}" "${stack_functions[$i]}"
+done
diff --git a/test/associative.test.bash b/test/associative.test.bash
new file mode 100755
index 0000000..d439520
--- /dev/null
+++ b/test/associative.test.bash
@@ -0,0 +1,37 @@
+#!/usr/bin/env miaou-bash
+
+# declare -a normal
+# declare -n ref1=normal
+# ref1+=(5)
+# ref1+=(9)
+# ref1+=(10)
+# declare -p normal
+# declare -p ref1
+# for i in "${ref1[@]}"; do echo "-> $i"; done
+
+function sub {
+  [[ ! -v index ]] && index=0
+  declare -ga "$1"
+  declare -n ref2="$1"
+  ref2+=($((++index)))
+  ref2+=($((++index)))
+}
+
+function build {
+  array_name="$1"
+  sub "$array_name"
+  # declare -n ref=$array_name
+}
+
+function array_inspect {
+  declare -n ref="$1"
+  echo "array '$1' contains ${#ref[@]} elements"
+  for i in "${ref[@]}"; do echo "-> $i"; done
+  echo -----
+}
+
+build mine1
+build mine2
+
+array_inspect mine1
+array_inspect mine2
diff --git a/test/subarrays.test.bash b/test/subarrays.test.bash
new file mode 100755
index 0000000..e28a7e0
--- /dev/null
+++ b/test/subarrays.test.bash
@@ -0,0 +1,32 @@
+#!/usr/bin/env miaou-bash
+
+ArrayOfArray_1=("Alan" "24")
+ArrayOfArray_2=("Walker" "31")
+MainArray=()
+
+array_count=0
+
+array_count=$(( array_count + 1 ))
+array_name="array_$array_count"
+declare -a "$array_name"
+declare -n ref="$array_name"
+ref+=("Bernard")
+ref+=(46)
+MainArray+=(ref[@])
+
+array_count=$(( array_count + 1 ))
+array_name="array_$(( array_count + 1 ))"
+declare -a "$array_name"
+declare -n ref2="$array_name"
+ref2+=("Ferland")
+ref2+=(17)
+MainArray+=(ref2[@])
+
+
+
+for sub_array in "${MainArray[@]}"; do
+  elements=("${!sub_array}") # Get the elements of the sub-array
+  name=${elements[0]}
+  age=${elements[1]}
+  echo "${name,,} $age"
+done