diff --git a/tests/functional/run-tests.sh b/tests/functional/run-tests.sh
new file mode 100644
index 0000000..b549067
--- /dev/null
+++ b/tests/functional/run-tests.sh
@@ -0,0 +1,189 @@
+#!/bin/bash
+
+echo WIP: vous pourriez regretter de lancer ce script
+exit 2
+
+
+###################
+#    Variables    #
+###################
+
+executable="../../src/42sh"
+errors_count=0 # TODO take into account
+
+
+ 
+##################
+#     Colors     #
+##################
+
+# Reset
+Color_Off='\033[0m'       # Text Reset
+
+# Regular Colors
+Black='\033[0;30m'        # Black
+Red='\033[0;31m'          # Red
+Green='\033[0;32m'        # Green
+Yellow='\033[0;33m'       # Yellow
+Blue='\033[0;34m'         # Blue
+Purple='\033[0;35m'       # Purple
+Cyan='\033[0;36m'         # Cyan
+White='\033[0;37m'        # White
+
+# Bold
+BBlack='\033[1;30m'       # Black
+BRed='\033[1;31m'         # Red
+BGreen='\033[1;32m'       # Green
+BYellow='\033[1;33m'      # Yellow
+BBlue='\033[1;34m'        # Blue
+BPurple='\033[1;35m'      # Purple
+BCyan='\033[1;36m'        # Cyan
+BWhite='\033[1;37m'       # White
+
+# Underline
+UBlack='\033[4;30m'       # Black
+URed='\033[4;31m'         # Red
+UGreen='\033[4;32m'       # Green
+UYellow='\033[4;33m'      # Yellow
+UBlue='\033[4;34m'        # Blue
+UPurple='\033[4;35m'      # Purple
+UCyan='\033[4;36m'        # Cyan
+UWhite='\033[4;37m'       # White
+
+# Background
+On_Black='\033[40m'       # Black
+On_Red='\033[41m'         # Red
+On_Green='\033[42m'       # Green
+On_Yellow='\033[43m'      # Yellow
+On_Blue='\033[44m'        # Blue
+On_Purple='\033[45m'      # Purple
+On_Cyan='\033[46m'        # Cyan
+On_White='\033[47m'       # White
+
+# High Intensity
+IBlack='\033[0;90m'       # Black
+IRed='\033[0;91m'         # Red
+IGreen='\033[0;92m'       # Green
+IYellow='\033[0;93m'      # Yellow
+IBlue='\033[0;94m'        # Blue
+IPurple='\033[0;95m'      # Purple
+ICyan='\033[0;96m'        # Cyan
+IWhite='\033[0;97m'       # White
+
+# Bold High Intensity
+BIBlack='\033[1;90m'      # Black
+BIRed='\033[1;91m'        # Red
+BIGreen='\033[1;92m'      # Green
+BIYellow='\033[1;93m'     # Yellow
+BIBlue='\033[1;94m'       # Blue
+BIPurple='\033[1;95m'     # Purple
+BICyan='\033[1;96m'       # Cyan
+BIWhite='\033[1;97m'      # White
+
+# High Intensity backgrounds
+On_IBlack='\033[0;100m'   # Black
+On_IRed='\033[0;101m'     # Red
+On_IGreen='\033[0;102m'   # Green
+On_IYellow='\033[0;103m'  # Yellow
+On_IBlue='\033[0;104m'    # Blue
+On_IPurple='\033[0;105m'  # Purple
+On_ICyan='\033[0;106m'    # Cyan
+On_IWhite='\033[0;107m'   # White
+
+
+
+##################
+#    Wrappers    #
+##################
+
+# TODO output handling
+
+# @arg test name
+# @arg input string
+# @arg expected output
+# @arg expected return code
+test_cmd() {
+
+    # Check input
+    if [[ -z "$1" || -z "$2" || -z "$3" || -z "$4"]]; then
+        echo $BRed "\n\n" "Issue in the testsuite: test_cmd: One or more argument is empty" $Color_off
+        exit 2
+    fi
+  
+    echo $BBlue "=== $1 ===" $Color_off
+
+    $executable -c "$2"
+    actual_code=$?
+
+    if [[ "$actual_code" -ne "$4" ]]; then
+        echo $BRed "Test failed: expected code $4 but got $actual_code" $Color_off
+    fi
+
+    echo $BBlue "===================" $Color_off "\n"
+}
+
+# @arg test name
+# @arg input script
+# @arg expected output
+# @arg expected return code
+test_script() {
+
+    # Check input
+    if [[ -z "$1" || -z "$2" || -z "$3" || -z "$4"]]; then
+        echo $BRed "\n\n" "Issue in the testsuite: test_script: One or more argument is empty" $Color_off
+        exit 2
+    fi
+    if [[ ! -f "$2" ]]; then
+        echo $BRed "\n\n" "Issue in the testsuite: test_script: Second argument is not a file" $Color_off
+        exit 2
+    fi
+
+  
+    echo $BBlue "=== $1 ===" $Color_off
+    
+    $executable "$2"
+    actual_code=$?
+
+    if [[ "$actual_code" -ne "$4" ]]; then
+        echo $BRed "Test failed: expected code $4 but got $actual_code" $Color_off
+    fi
+
+    echo $BBlue "===================" $Color_off "\n"
+}
+
+# @arg test name
+# @arg input file
+# @arg expected output
+# @arg expected return code
+test_stdin() {
+    # Check input
+    if [[ -z "$1" || -z "$2" || -z "$3" || -z "$4"]]; then
+        echo $BRed "\n\n" "Issue in the testsuite: test_stdin: One or more argument is empty" $Color_off
+        exit 2
+    fi
+    if [[ ! -f "$2" ]]; then
+        echo $BRed "\n\n" "Issue in the testsuite: test_stdin: Second argument is not a file" $Color_off
+        exit 2
+    fi
+
+  
+    echo $BBlue "===== $1 =====" $Color_off
+
+    $executable < "$2"
+    actual_code=$?
+
+    if [[ "$actual_code" -ne "$4" ]]; then
+        echo $BRed "Test failed: expected code $4 but got $actual_code" $Color_off
+    fi
+
+    echo $BBlue "===================" $Color_off "\n"
+    
+}
+
+
+# ***********************************************************
+#################
+#     Tests     #
+#################
+
+