1 files changed, 5 insertions, 2 deletions

diff --git a/plugins/t/check_users.t b/plugins/t/check_users.t
index 088f3b52..21c3e53d 100644
--- a/plugins/t/check_users.t
+++ b/plugins/t/check_users.t
@@ -2,7 +2,7 @@
 #
 # Logged in Users Tests via check_users
 #
-# Trick: This ckeck requires at least 1 user logged in. These commands should
+# Trick: This check requires at least 1 user logged in. These commands should
 #        leave a session open forever in the background:
 #
 #   $ ssh -tt localhost </dev/null >/dev/null 2>/dev/null &
@@ -13,10 +13,11 @@ use Test;
 use NPTest;
 
 use vars qw($tests);
-BEGIN {$tests = 8; plan tests => $tests}
+BEGIN {$tests = 12; plan tests => $tests}
 
 my $successOutput = '/^USERS OK - [0-9]+ users currently logged in/';
 my $failureOutput = '/^USERS CRITICAL - [0-9]+ users currently logged in/';
+my $wrongOptionOutput = '/Usage:/';
 
 my $t;
 
@@ -24,6 +25,8 @@ $t += checkCmd( "./check_users 1000 1000", 0, $successOutput );
 $t += checkCmd( "./check_users    0    0", 2, $failureOutput );
 $t += checkCmd( "./check_users -w 0:1000 -c 0:1000", 0, $successOutput );
 $t += checkCmd( "./check_users -w 0:0 -c 0:0", 2, $failureOutput );
+$t += checkCmd( "./check_users -w 0:1000", 3, $wrongOptionOutput);
+$t += checkCmd( "./check_users", 3, $wrongOptionOutput);
 
 exit(0) if defined($Test::Harness::VERSION);
 exit($tests - $t);