diff --git a/lib/util.sh b/lib/util.sh
index 15fd48c..dc88506 100644
--- a/lib/util.sh
+++ b/lib/util.sh
@@ -17,7 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-echoerr() { echo "$@" 1>&2; }
+function echoerr(){
+    echo "$@" 1>&2
+}
 function die(){
 # $@: msg (mandatory) - str: Message to print
     error $@
diff --git a/tests/util.sh b/tests/util.sh
new file mode 100644
index 0000000..0e39ad1
--- /dev/null
+++ b/tests/util.sh
@@ -0,0 +1,63 @@
+source "$(dirname $0)/../lib/util.sh"
+
+function is_equal(){
+    [ "$1" == "$2" ] || return 1 && return 0
+}
+
+function test_echoerr(){
+    local actual=$(echoerr "Test" 2>&1)
+    is_equal "$actual" "Test" || return 1
+    return 0
+}
+
+function test_error(){
+    local actual=$(error "Test" 2>&1)
+    local expected=$(echo -e "\033[1;31mTest\033[0m")
+    is_equal "$actual" "$expected" || return 1
+    return 0
+}
+
+function test_warn(){
+    local actual=$(warn "Test" 2>&1)
+    local expected=$(echo -e "\033[1;33mTest\033[0m")
+    is_equal "$actual" "$expected" || return 1
+    return 0
+}
+
+function test_info(){
+    local actual=$(info "Test")
+    local expected=$(echo -e "\033[1;37mTest\033[0m")
+    is_equal "$actual" "$expected" || return 1
+    return 0
+}
+
+function test_die(){
+    local actual=$(die "Test" 2>&1)
+    local expected=$(echo -e "\033[1;31mTest\033[0m")
+    is_equal "$actual" "$expected" || return 1
+    return 0
+}
+
+function test_ask(){
+    echo "Y" | ask "Test" &> /dev/null
+    is_equal $? 0 || return 1
+    echo "y" | ask "Test" &> /dev/null
+    is_equal $? 0 || return 1
+    echo "N" | ask "Test" &> /dev/null
+    is_equal $? 1 || return 1
+    echo "n" | ask "Test" &> /dev/null
+    is_equal $? 1 || return 1
+    echo -e "\n" | ask "Test" &> /dev/null
+    is_equal $? 0 || return 1
+    echo -e "\n" | ask "Test" "N" &> /dev/null
+    is_equal $? 1 || return 1
+    echo -e "asdf\n\n" | ask "Test" "N" &> /dev/null
+    is_equal $? 1 || return 1
+    return 0
+}
+
+
+for func in $(declare -F | grep test_ | awk '{print $3}' | xargs)
+do
+    $func && echo -e "${func}...\033[1;32mOK\033[0m" || echo -e "${func}...\033[1;31mFAIL\033[0m"
+done