Add Redis Typed Hash test

Author: mythz

tests/ServiceStack.Redis.Tests/Issues/ReportedIssues.cs

@@ -1,5 +1,8 @@
 using System.Collections.Generic;
+using System.Linq;
 using NUnit.Framework;
+using ServiceStack.Redis.Generic;
+using ServiceStack.Text;
 
 namespace ServiceStack.Redis.Tests.Issues
 {
@@ -49,5 +52,60 @@ public void Success_callback_fails_for_pipeline_using_GetItemScoreInSortedSet()
 
             Assert.That(score, Is.EqualTo(1));
         }
+
+        public class Test
+        {
+            public int Id { get; set; }
+            public string Name { get; set; }
+
+            protected bool Equals(Test other) => Id == other.Id && Name == other.Name;
+
+            public override bool Equals(object obj)
+            {
+                if (ReferenceEquals(null, obj)) return false;
+                if (ReferenceEquals(this, obj)) return true;
+                if (obj.GetType() != this.GetType()) return false;
+                return Equals((Test) obj);
+            }
+
+            public override int GetHashCode()
+            {
+                unchecked
+                {
+                    return (Id * 397) ^ (Name != null ? Name.GetHashCode() : 0);
+                }
+            }
+        }
+
+        [Test]
+        public void Try_simulate_NRE_when_calling_GetAllEntriesFromHash_using_BasicRedisClientManager()
+        {
+            using (var redisManager = new BasicRedisClientManager(TestConfig.SingleHost))
+            using (var redis = redisManager.GetClient())
+            {
+                IRedisHash<string, Test> testHash = redis.As<Test>()
+                    .GetHash<string>("test-hash");
+                
+                Assert.That(testHash.Count, Is.EqualTo(0));
+
+                var contents = testHash.GetAll();
+                Assert.That(contents.Count, Is.EqualTo(0));
+
+                var test1 = new Test { Id = 1, Name = "Name1" };
+                var test2 = new Test { Id = 2, Name = "Name2" };
+                testHash["A"] = test1;
+                testHash["B"] = test2;
+                
+                contents = testHash.GetAll();
+                
+                Assert.That(contents, Is.EqualTo(new Dictionary<string, Test> {
+                    ["A"] = test1,
+                    ["B"] = test2,
+                }));
+
+                Assert.That(testHash["A"], Is.EqualTo(test1));
+                Assert.That(testHash["B"], Is.EqualTo(test2));
+            }
+        }
     }
 }