From e5b550d332a58e505321213c6a2b8a4dcb91fafa Mon Sep 17 00:00:00 2001
From: Adam Bozanich <adam.boz@gmail.com>
Date: Sun, 15 May 2011 14:18:37 -0700
Subject: [PATCH] add HSETNX support

---
 lib/redis/namespace.rb | 1 +
 spec/redis_spec.rb     | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/lib/redis/namespace.rb b/lib/redis/namespace.rb
index 482e682..98107db 100644
--- a/lib/redis/namespace.rb
+++ b/lib/redis/namespace.rb
@@ -56,6 +56,7 @@ class Namespace
       "get"              => [ :first ],
       "getset"           => [ :first ],
       "hset"             => [ :first ],
+      "hsetnx"           => [ :first ],
       "hget"             => [ :first ],
       "hincrby"          => [ :first ],
       "hmget"            => [ :first ],
diff --git a/spec/redis_spec.rb b/spec/redis_spec.rb
index ba397fc..43355d8 100644
--- a/spec/redis_spec.rb
+++ b/spec/redis_spec.rb
@@ -79,6 +79,12 @@
     @namespaced.hincrby('bar', 'a_number', 3)
     @namespaced.hmget('bar', 'a_number').should == ['4']
     @namespaced.hgetall('bar').should == {'key' => 'value', 'key1' => 'value1', 'a_number' => '4'}
+
+    @namespaced.hsetnx('foonx','nx',10).should be_true
+    @namespaced.hsetnx('foonx','nx',12).should be_false
+    @namespaced.hget('foonx','nx').should == "10"
+    @namespaced.hkeys('foonx').should     == %w{ nx }
+    @namespaced.hvals('foonx').should     == %w{ 10 }
   end
 
   it "should properly intersect three sets" do