diff options
| author | Steve Kemp <steve@steve.org.uk> | 2012-11-23 13:49:07 +0000 |
|---|---|---|
| committer | Steve Kemp <steve@steve.org.uk> | 2012-11-23 13:49:07 +0000 |
| commit | d8aa37614354b1638bd8c73a3d8104dfdf39c08e (patch) | |
| tree | 74ca4824429d53bea6019707545949e1f57e7102 /lib/custodian/util/ping.rb | |
| parent | e3550fc78d1ef666bfd909394b0a66cfd0ac4cb6 (diff) | |
Ensure we have a sane argument to our constructor.
Diffstat (limited to 'lib/custodian/util/ping.rb')
| -rw-r--r-- | lib/custodian/util/ping.rb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/custodian/util/ping.rb b/lib/custodian/util/ping.rb index 86fa2ab..9abc746 100644 --- a/lib/custodian/util/ping.rb +++ b/lib/custodian/util/ping.rb @@ -25,6 +25,10 @@ module Custodian # Save the hostname away, resolve it if possible. # def initialize( hostname ) + + raise ArgumentError, "Hostname must not be nil" if ( hostname.nil? ) + raise ArgumentError, "Hostname must be a String" unless hostname.kind_of?( String ) + @hostname = hostname @resolved = Custodian::Util::DNS.hostname_to_ip( hostname ) end |