Added asserts

import/alert.sh

@@ -4,6 +4,7 @@
 # USAGE: error "message" <exit_code>
 RED='\033[0;31m'
 YELLOW='\033[1;33m'
+GREEN='\e[92m'
 NC='\033[0m'
 
 # Display an error message and exit.
@@ -16,3 +17,11 @@ error () {
 warning () {
 	printf "[${YELLOW}WARNING${NC}] $1\n"
 }
+
+success () {
+	printf "[${GREEN}SUCCESS${NC}] $1\n"
+}
+
+tick () {
+	printf "$1 ${GREEN}✔${NC}\n"
+}

slock

@@ -8,9 +8,9 @@ SCRIPT_PATH=$(dirname $0)
 
 # Check dependencies
 [ ! $(command -v error) ] && echo "[WARNING] Missing 'alert.sh' import"
-[ ! $(command -v i3lock) ] && error "Missing command 'i3lock'"
-[ ! $(command -v scrot) ] && error "Missing command 'scrot'"
-[ ! $(command -v convert) ] && error "Missing 'convert', provided by ImageMagick"
+[ ! $(command -v i3lock) ] && error "Missing command 'i3lock'" || tick "'i3lock' found"
+[ ! $(command -v scrot) ] && error "Missing command 'scrot'" || tick "'scrot' found"
+[ ! $(command -v convert) ] && error "Missing 'convert', provided by ImageMagick" || tick "'convert' found"
 
 path="$HOME/Pictures"
 scrot $path/.slock.png