From 8c6cc573323241f0a2524fccf5cbd9fd03a544a1 Mon Sep 17 00:00:00 2001
From: Steve Kemp <steve@steve.org.uk>
Date: Tue, 20 Nov 2012 10:32:10 +0000
Subject:   New test cases for DNS lookup - basic.

---
 t/test-dnsutil.rb | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100755 t/test-dnsutil.rb

diff --git a/t/test-dnsutil.rb b/t/test-dnsutil.rb
new file mode 100755
index 0000000..48f8658
--- /dev/null
+++ b/t/test-dnsutil.rb
@@ -0,0 +1,79 @@
+#!/usr/bin/ruby1.8 -I./lib/ -I../lib/
+
+
+
+require 'test/unit'
+require 'custodian/dnsutil'
+
+
+
+#
+# Unit test for our DNS utility class.
+#
+#
+class TestAlerter < Test::Unit::TestCase
+
+  #
+  # Create the test suite environment: NOP.
+  #
+  def setup
+  end
+
+  #
+  # Destroy the test suite environment: NOP.
+  #
+  def teardown
+  end
+
+
+  #
+  #  Test forward lookups
+  #
+  def test_lookup
+
+    #
+    # IPv6 lookup
+    #
+    details = DNSUtil.hostname_to_ip( "ipv6.steve.org.uk" )
+    assert( details =~ /2001:41c8:125:46::10/i )
+
+    #
+    # IPv4 lookup
+    #
+    details = DNSUtil.hostname_to_ip( "ipv4.steve.org.uk" )
+    assert( details =~ /80.68.85.46/i )
+
+    #
+    # Failure case
+    #
+    details = DNSUtil.hostname_to_ip( "this.doesnot.exist" )
+    assert( details.nil? )
+
+  end
+
+
+  #
+  #  Test forward lookups
+  #
+  def test_reverse_lookup
+
+    #
+    # IPv6 lookup
+    #
+    details = DNSUtil.ip_to_hostname( "2001:41c8:125:46::22" )
+    assert( details =~ /ssh.steve.org.uk/i )
+
+    #
+    # IPv4 lookup
+    #
+    details = DNSUtil.ip_to_hostname( "80.68.85.48" )
+    assert( details =~ /ssh.steve.org.uk/i )
+
+    #
+    # Bogus lookup - should return nil.
+    #
+    details = DNSUtil.ip_to_hostname( "800.683.853.348" )
+    assert( details.nil? )
+
+  end
+end
-- 
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