diff --git a/94 War/csharp/War/WarTester/Tests.cs b/94 War/csharp/War/WarTester/Tests.cs
new file mode 100644
index 00000000..313d2a1e
--- /dev/null
+++ b/94 War/csharp/War/WarTester/Tests.cs	
@@ -0,0 +1,126 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.Text;
+using War;
+
+
+
+namespace WarTester
+{
+    [TestClass]
+    public class CardTest
+    {
+        private Card c1 = new Card(Suit.clubs, Rank.two);
+        private Card c2 = new Card(Suit.clubs, Rank.ten);
+        private Card c3 = new Card(Suit.diamonds, Rank.ten);
+        private Card c4 = new Card(Suit.diamonds, Rank.ten);
+
+        [TestMethod]
+        public void LessThanIsValid()
+        {
+            Assert.IsTrue(c1 < c2, "c1 < c2");  // Same suit, different rank.
+            Assert.IsFalse(c2 < c1, "c2 < c1"); // Same suit, different rank.
+
+            Assert.IsFalse(c3 < c4, "c3 < c4"); // Same suit, same rank.
+
+            Assert.IsTrue(c1 < c3, "c1 < c3");  // Different suit, different rank.
+            Assert.IsFalse(c3 < c1, "c3 < c1"); // Different suit, different rank.
+
+            Assert.IsFalse(c2 < c4, "c2 < c4"); // Different suit, same rank.
+            Assert.IsFalse(c4 < c2, "c4 < c2"); // Different suit, same rank.
+        }
+
+        [TestMethod]
+        public void GreaterThanIsValid()
+        {
+            Assert.IsFalse(c1 > c2, "c1 > c2"); // Same suit, different rank.
+            Assert.IsTrue(c2 > c1, "c2 > c1");  // Same suit, different rank.
+
+            Assert.IsFalse(c3 > c4, "c3 > c4"); // Same suit, same rank.
+
+            Assert.IsFalse(c1 > c3, "c1 > c3"); // Different suit, different rank.
+            Assert.IsTrue(c3 > c1, "c3 > c1");  // Different suit, different rank.
+
+            Assert.IsFalse(c2 > c4, "c2 > c4"); // Different suit, same rank.
+            Assert.IsFalse(c4 > c2, "c4 > c2"); // Different suit, same rank.
+        }
+
+        [TestMethod]
+        public void LessThanEqualsIsValid()
+        {
+            Assert.IsTrue(c1 <= c2, "c1 <= c2");  // Same suit, different rank.
+            Assert.IsFalse(c2 <= c1, "c2 <= c1"); // Same suit, different rank.
+
+            Assert.IsTrue(c3 <= c4, "c3 <= c4");  // Same suit, same rank.
+
+            Assert.IsTrue(c1 <= c3, "c1 <= c3");  // Different suit, different rank.
+            Assert.IsFalse(c3 <= c1, "c3 <= c1"); // Different suit, different rank.
+
+            Assert.IsTrue(c2 <= c4, "c2 <= c4");  // Different suit, same rank.
+            Assert.IsTrue(c4 <= c2, "c4 <= c2");  // Different suit, same rank.
+        }
+
+        [TestMethod]
+        public void GreaterThanEqualsIsValid()
+        {
+            Assert.IsFalse(c1 >= c2, "c1 >= c2"); // Same suit, different rank.
+            Assert.IsTrue(c2 >= c1, "c2 >= c1");  // Same suit, different rank.
+
+            Assert.IsTrue(c3 >= c4, "c3 >= c4");  // Same suit, same rank.
+
+            Assert.IsFalse(c1 >= c3, "c1 >= c3"); // Different suit, different rank.
+            Assert.IsTrue(c3 >= c1, "c3 >= c1");  // Different suit, different rank.
+
+            Assert.IsTrue(c2 >= c4, "c2 >= c4");  // Different suit, same rank.
+            Assert.IsTrue(c4 >= c2, "c4 >= c2");  // Different suit, same rank.
+        }
+
+        [TestMethod]
+        public void ToStringIsValid()
+        {
+            string s1 = c1.ToString();
+            string s2 = c3.ToString();
+            string s3 = new Card(Suit.hearts, Rank.queen).ToString();
+            string s4 = new Card(Suit.spades, Rank.ace).ToString();
+
+            Assert.IsTrue(s1 == "C-2", "s1 invalid");
+            Assert.IsTrue(s2 == "D-10", "s2 invalid");
+            Assert.IsTrue(s3 == "H-Q", "s3 invalid");
+            Assert.IsTrue(s4 == "S-A", "s4 invalid");
+        }
+    }
+
+    [TestClass]
+    public class DeckTest
+    {
+        private string ConcatenateDeck(Deck d)
+        {
+            StringBuilder sb = new StringBuilder();
+
+            for (int i = 0; i < Deck.deckSize; i++)
+            {
+                sb.Append(d.GetCard(i));
+            }
+
+            return sb.ToString();
+        }
+
+        [TestMethod]
+        public void InitialDeckContainsCardsInOrder()
+        {
+            Deck d1 = new Deck();
+            string allTheCards = ConcatenateDeck(d1);
+
+            Assert.IsTrue(allTheCards == "C-2C-3C-4C-5C-6C-7C-8C-9C-10C-JC-QC-KC-AD-2D-3D-4D-5D-6D-7D-8D-9D-10D-JD-QD-KD-AH-2H-3H-4H-5H-6H-7H-8H-9H-10H-JH-QH-KH-AS-2S-3S-4S-5S-6S-7S-8S-9S-10S-JS-QS-KS-A");
+        }
+
+        [TestMethod]
+        public void ShufflingChangesDeck()
+        {
+            Deck d1 = new Deck();
+            d1.Shuffle();
+            string allTheCards = ConcatenateDeck(d1);
+
+            Assert.IsTrue(allTheCards != "C-2C-3C-4C-5C-6C-7C-8C-9C-10C-JC-QC-KC-AD-2D-3D-4D-5D-6D-7D-8D-9D-10D-JD-QD-KD-AH-2H-3H-4H-5H-6H-7H-8H-9H-10H-JH-QH-KH-AS-2S-3S-4S-5S-6S-7S-8S-9S-10S-JS-QS-KS-A");
+        }
+    }
+}
diff --git a/94 War/csharp/War/WarTester/WarTester.csproj b/94 War/csharp/War/WarTester/WarTester.csproj
new file mode 100644
index 00000000..9d1808d6
--- /dev/null
+++ b/94 War/csharp/War/WarTester/WarTester.csproj	
@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+
+    <Platforms>AnyCPU</Platforms>
+  </PropertyGroup>
+
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+    <Optimize>true</Optimize>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.3" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.3" />
+    <PackageReference Include="coverlet.collector" Version="3.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\War\War.csproj" />
+  </ItemGroup>
+
+</Project>