diff --git a/Dockerfile b/Dockerfile
index 5645c5f..97a1c21 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,13 @@ RUN dotnet restore
 
 COPY . ./
 
+RUN apt-get update && apt-get install -y libcap2-bin libsnappy1v5 && \
+    ln -s /lib/x86_64-linux-gnu/libdl.so.2 /usr/lib/x86_64-linux-gnu/libdl.so && \
+    ln -s /lib/x86_64-linux-gnu/libc.so.6 /usr/lib/x86_64-linux-gnu/libc.so && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN dotnet test Hexastore.Test
+
 # Copy everything else and build
 RUN dotnet publish -c Release ./Hexastore.Web -o /app/out
 
diff --git a/Hexastore.Test/Hexastore.Test.csproj b/Hexastore.Test/Hexastore.Test.csproj
index 09d1963..02d030a 100644
--- a/Hexastore.Test/Hexastore.Test.csproj
+++ b/Hexastore.Test/Hexastore.Test.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
diff --git a/Hexastore.Test/StoreProcessorTest.cs b/Hexastore.Test/StoreProcessorTest.cs
index 754e666..1688984 100644
--- a/Hexastore.Test/StoreProcessorTest.cs
+++ b/Hexastore.Test/StoreProcessorTest.cs
@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
-using System.Text.Json.Serialization;
 using Hexastore.Parser;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using Newtonsoft.Json;
@@ -133,7 +132,7 @@ public void Json_Read_Write_Relationship_Returns()
         }
 
         [TestMethod]
-        public void Patch_Returns_With_Relationship()
+        public void Patch_With_Relationship_Returns()
         {
             var patch = new
             {
@@ -173,7 +172,7 @@ public void Patch_Returns_With_Relationship()
         }
 
         [TestMethod]
-        public void Patch_Returns_With_Values()
+        public void Patch_With_Values_Returns()
         {
             var doc = new
             {
diff --git a/Hexastore/Query/ObjectQueryModel.cs b/Hexastore/Query/ObjectQueryModel.cs
index 034a150..fefba64 100644
--- a/Hexastore/Query/ObjectQueryModel.cs
+++ b/Hexastore/Query/ObjectQueryModel.cs
@@ -56,6 +56,11 @@ public override bool Equals(object obj)
             }
             return t.S.Equals(S) && t.P.Equals(P) && t.O.CompareTo(O) == 0 && t.IsId == IsId;
         }
+
+        public override int GetHashCode()
+        {
+            return (S + P + O + IsId.ToString()).GetHashCode();
+        }
     }
 
     public class QueryUnit