diff --git a/test/miaou-bash.test.bash b/test/miaou-bash.test.bash
index 8581df7..c0cad8b 100755
--- a/test/miaou-bash.test.bash
+++ b/test/miaou-bash.test.bash
@@ -1,9 +1,19 @@
 #!/usr/bin/env bash
 
+# CONSTANTS
+
+TEST_COUNT=0
+SUCCESS_COUNT=0
 # functions
 
 function assert {
-  ./test/stub/scenario.bash "$1" >/dev/null || (echo "error in: $1" && exit 1)
+  ((TEST_COUNT++))
+  if ./test/stub/scenario.bash "$1" >/dev/null; then
+    ((SUCCESS_COUNT++))
+  else
+    (echo "error in: $1" && exit 1)
+  fi
+
 }
 
 function strip_ansi {
@@ -11,6 +21,7 @@ function strip_ansi {
 }
 
 function fail_type {
+  ((TEST_COUNT++))
   local i line first error_start_above regex
   mapfile -t stderr <<<"$(./test/stub/scenario.bash "$1" 2>&1 >/dev/null)"
   # echo "stderr countains ${#stderr[@]}"
@@ -21,16 +32,31 @@ function fail_type {
     first="${line:1:1}"
     [[ $first == ╔ ]] && error_start_above=true && continue
     if [[ "$error_start_above" == true ]]; then
-      [[ $line =~ $regex ]] && [[ ${BASH_REMATCH[1]} == "$2" ]] && return 0
-      echo "error in: $1" && return 1
+      if [[ $line =~ $regex ]] && [[ ${BASH_REMATCH[1]} == "$2" ]]; then
+        ((SUCCESS_COUNT++))
+        return 0
+      else
+        break
+      fi
     fi
   done
+  echo "error in: $1" && return 1
 }
 
 # main
-set -euo pipefail
+set -uo pipefail
+
 assert success
 fail_type subshell_term SUBSHELL_TERM
 fail_type unbound_variable UNBOUND_VARIABLE
 fail_type false FALSE
-echo 100% passed!
+fail_type return RETURN
+
+failed=$((TEST_COUNT - SUCCESS_COUNT))
+if [[ $failed -gt 0 ]]; then
+  ratio=$((100 * SUCCESS_COUNT / TEST_COUNT))
+  echo "${ratio}% passed, $failed test have failed!"
+  exit 1
+else
+  echo 100% passed!
+fi