Add unlink command.

commands.go

@@ -47,6 +47,7 @@ type Cmdable interface {
 	Ping() *StatusCmd
 	Quit() *StatusCmd
 	Del(keys ...string) *IntCmd
+	Unlink(keys ...string) *IntCmd
 	Dump(key string) *StringCmd
 	Exists(key string) *BoolCmd
 	Expire(key string, expiration time.Duration) *BoolCmd
@@ -292,6 +293,17 @@ func (c *cmdable) Del(keys ...string) *IntCmd {
 	return cmd
 }
 
+func (c *cmdable) Unlink(keys ...string) *IntCmd {
+	args := make([]interface{}, 1+len(keys))
+	args[0] = "unlink"
+	for i, key := range keys {
+		args[1+i] = key
+	}
+	cmd := NewIntCmd(args...)
+	c.process(cmd)
+	return cmd
+}
+
 func (c *cmdable) Dump(key string) *StringCmd {
 	cmd := NewStringCmd("dump", key)
 	c.process(cmd)

commands_test.go

@@ -199,16 +199,25 @@ var _ = Describe("Commands", func() {
 	Describe("keys", func() {
 
 		It("should Del", func() {
-			set := client.Set("key1", "Hello", 0)
+			err := client.Set("key1", "Hello", 0).Err()
-			Expect(set.Err()).NotTo(HaveOccurred())
+			Expect(err).NotTo(HaveOccurred())
-			Expect(set.Val()).To(Equal("OK"))
+			err = client.Set("key2", "World", 0).Err()
-			set = client.Set("key2", "World", 0)
+			Expect(err).NotTo(HaveOccurred())
-			Expect(set.Err()).NotTo(HaveOccurred())
-			Expect(set.Val()).To(Equal("OK"))
 
-			del := client.Del("key1", "key2", "key3")
+			n, err := client.Del("key1", "key2", "key3").Result()
-			Expect(del.Err()).NotTo(HaveOccurred())
+			Expect(err).NotTo(HaveOccurred())
-			Expect(del.Val()).To(Equal(int64(2)))
+			Expect(n).To(Equal(int64(2)))
+		})
+
+		It("should Unlink", func() {
+			err := client.Set("key1", "Hello", 0).Err()
+			Expect(err).NotTo(HaveOccurred())
+			err = client.Set("key2", "World", 0).Err()
+			Expect(err).NotTo(HaveOccurred())
+
+			n, err := client.Unlink("key1", "key2", "key3").Result()
+			Expect(err).NotTo(HaveOccurred())
+			Expect(n).To(Equal(int64(2)))
 		})
 
 		It("should Dump", func() {