Add success and failure methods.

lib/net/ldap/pdu.rb

@@ -128,6 +128,14 @@ class Net::LDAP::PDU
     result_code == 0 ? :success : :failure
   end
 
+  def success?
+    status == :success
+  end
+
+  def failure?
+    !success?
+  end
+
   ##
   # Return serverSaslCreds, which are only present in BindResponse packets.
   #--

spec/unit/ldap_spec.rb

@@ -61,7 +61,7 @@ describe Net::LDAP::Connection do
       @tcp_socket.should_receive(:read_ber).and_return([2, ber])
 
       result = subject.modify(:dn => "1", :operations => [[:replace, "mail", "something@sothsdkf.com"]])
-      result.status.should == :failure
+      result.should be_failure
       result.error_message.should == "The provided password value was rejected by a password validator:  The provided password did not contain enough characters from the character set 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.  The minimum number of characters from that set that must be present in user passwords is 1"
     end
 
@@ -71,7 +71,7 @@ describe Net::LDAP::Connection do
       @tcp_socket.should_receive(:read_ber).and_return([2, ber])
 
       result = subject.modify(:dn => "1", :operations => [[:replace, "mail", "something@sothsdkf.com"]])
-      result.status.should == :success
+      result.should be_success
       result.error_message.should == ""
     end
   end