add common.sh and test_common.sh

1

@@ -0,0 +1,7 @@
+#!/bin/bash
+lol() {
+	echo "$@"
+	echo -----
+	echo "$*"
+}
+lol $(echo -e "1\n2\n3")

common.sh

@@ -8,13 +8,33 @@ INTERNAL_DIR="${DESTDIR}var/lib/linux-infosec-setupper"
 AUDIT_RULES_FILE=${DESTDIR}etc/audit/rules.d/90-linux-infosec-setupper.rules
 AUDIT_DAEMON_CONFIG=${DESTDIR}etc/audit/auditd.conf
 
-_check_argument() {
-	case "$1" in
-	
+
+error() {
+	printf "$@" 1>&2
+	echo '' 1>&2
+}
+_check_argument_is_number() {
 	if [[ "$1" == [0-9]* ]]; then
 		return 0
 	else
-		printf $"Argument to %s must be a number" "$2"
+		error $"Argument to %s must be a number" "$2"
 		return 1
 	fi
 }
+_check_argument_value() {
+	if [[ "$1" < "$2" ]]; then
+		error $"Argument to %s must be greater than %s" "$2" "$3"
+		return 1
+	else
+		return 0
+	fi
+}
+_check_argument_is_string() {
+	if [[ "$1" == *[[:blank:]]* ]]; then
+		error $"Argument to %s must be a string without spaces"  "$2"
+		return 1
+	else
+		return 0
+	fi
+}
+

test_common.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+#set -x
+
+TESTING=1
+
+. ./common.sh
+
+_check_argument_is_number 123 "this" || failed="$((++failed))"
+_check_argument_is_number NotNumber "this" && failed="$((++failed))"
+
+_check_argument_value 8 7 "this" || failed="$((++failed))"
+_check_argument_value 1 7 "this" && failed="$((++failed))"
+
+_check_argument_is_string "Hello" "this" || failed="$((++failed))"
+_check_argument_is_string "Hello world" "this" && failed="$((++failed))"
+
+
+failed="${failed:-0}"
+echo "$failed"
+exit "$failed"