Add tests for passwd and hashed_passwd user-data parameters

Without password hash '$user:*' to `chpasswd -e` will result to
inability for user to login, or change password. So I've add parameter
passwd_hash for the user. Password hash could be generated via command
`openssl passwd -5 your_password`.

lib/tiny-cloud/user-data/cloud-config

@@ -75,7 +75,6 @@ set_ssh_authorized_keys_for() {
 	touch "$keys_file"
 	chmod 600 "$keys_file"
 	$MOCK chown -R "$user:$group" "$ssh_dir"
-	local i
 	for i in $sshkeys; do
 		local key="$(get_userdata $userdata_path/$i)"
 		if [ -n "$key" ]; then
@@ -143,7 +142,7 @@ write_file() {
 }
 
 init__userdata_write_files() {
-	local i files="$(get_userdata write_files)"
+	local files="$(get_userdata write_files)"
 
 	for i in $files; do
 		local path="$(get_userdata write_files/$i/path)"
@@ -205,7 +204,7 @@ init__userdata_package_upgrade() {
 
 init__userdata_packages() {
 	local packages="$(get_userdata packages)"
-	local i pkgs=
+	local pkgs=
 	for i in $packages; do
 		pkgs="$pkgs $(get_userdata packages/$i)"
 	done
@@ -215,7 +214,7 @@ init__userdata_packages() {
 }
 
 init__userdata_runcmd() {
-	local i runcmds="$(get_userdata runcmd)"
+	local runcmds="$(get_userdata runcmd)"
 	for i in $runcmds; do
 		local cmd="$(get_userdata runcmd/$i)"
 		sh -c "$cmd"
@@ -223,7 +222,7 @@ init__userdata_runcmd() {
 }
 
 init__userdata_groups() {
-	local i groups="$(get_userdata groups)"
+	local groups="$(get_userdata groups)"
 	for i in $groups; do
 		local group="$(get_userdata groups/$i)"
 		$MOCK addgroup $group
@@ -242,7 +241,7 @@ in_list() {
 }
 
 init__userdata_users() {
-	local i users="$(get_userdata users)"
+	local users="$(get_userdata users)"
 	for i in $users; do
 		local name="" gecos="" homedir="" shell="" primary_group="" groups="" passwd="" hashed_passwd=""
 		local system=false no_create_home=false lock_passwd=true