Verify we can create diffs for Atom

test/DiffTests.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Squirrel.Tests.TestHelpers;
+using Xunit;
+
+namespace Squirrel.Tests
+{
+    public class DiffTests
+    {
+        [Fact]
+        public void CreateAtomDiffSmokeTest()
+        {
+            var baseFile = IntegrationTestHelper.GetPath("fixtures", "bsdiff", "atom-137.0.exe");
+            var newFile = IntegrationTestHelper.GetPath("fixtures", "bsdiff", "atom-137.1.exe");
+
+            var baseBytes = File.ReadAllBytes(baseFile);
+            var newBytes = File.ReadAllBytes(newFile);
+
+            var ms = new MemoryStream();
+            BinaryPatchUtility.Create(baseBytes, newBytes, ms);
+
+            Assert.True(ms.Length > 100);
+        }
+    }
+}

test/Squirrel.Tests.csproj

@@ -79,6 +79,7 @@
     <Compile Include="CheckForUpdateTests.cs" />
     <Compile Include="ContentTypeTests.cs" />
     <Compile Include="DeltaPackageTests.cs" />
+    <Compile Include="DiffTests.cs" />
     <Compile Include="DownloadReleasesTests.cs" />
     <Compile Include="PackageExtensionsTests.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />