Merge pull request #133 from luberg/master

Issue #111: HashSet with RedisValue.EmptyString do not work as ""

MigratedBookSleeveTestSuite/Hashes.cs

@@ -180,6 +180,11 @@ public void TestGet()
                 var set2 = conn.HashSetAsync("hashkey", "field-blob", Encoding.UTF8.GetBytes("value3"));
                 var val3 = conn.HashGetAsync("hashkey", "field-blob");
 
+                var set3 = conn.HashSetAsync("hashkey", "empty_type1", "");
+                var val4 = conn.HashGetAsync("hashkey", "empty_type1");
+                var set4 = conn.HashSetAsync("hashkey", "empty_type2", RedisValue.EmptyString);
+                var val5 = conn.HashGetAsync("hashkey", "empty_type2");
+
                 Assert.AreEqual(null, (string)val0.Result);
                 Assert.AreEqual(true, set0.Result);
                 Assert.AreEqual("value1", (string)val1.Result);
@@ -189,6 +194,10 @@ public void TestGet()
                 Assert.AreEqual(true, set2.Result);
                 Assert.AreEqual("value3", (string)val3.Result);
 
+                Assert.AreEqual(true, set3.Result);
+                Assert.AreEqual("", (string)val4.Result);
+                Assert.AreEqual(true, set4.Result);
+                Assert.AreEqual("", (string)val5.Result);
             }
         }
         [Test]

StackExchange.Redis/StackExchange/Redis/RedisValue.cs

@@ -10,12 +10,12 @@ public struct RedisValue : IEquatable<RedisValue>, IComparable<RedisValue>, ICom
     {
         internal static readonly RedisValue[] EmptyArray = new RedisValue[0];
 
+        static readonly byte[] EmptyByteArr = new byte[0];
+
         private static readonly RedisValue
             @null = new RedisValue(0, null),
             emptyString = new RedisValue(0, EmptyByteArr);
 
-        static readonly byte[] EmptyByteArr = new byte[0];
-
         private static readonly byte[] IntegerSentinel = new byte[0];
 
         private readonly byte[] valueBlob;