Add a method to create fake squirrel-aware app packages at will

test/TestHelpers/IntegrationTestHelper.cs

@@ -8,6 +8,7 @@ using Ionic.Zip;
 using Squirrel;
 using Splat;
 using Xunit;
+using System.Text;
 
 namespace Squirrel.Tests.TestHelpers
 {
@@ -69,6 +70,48 @@ namespace Squirrel.Tests.TestHelpers
             return ret;
         }
 
+        public static string CreateFakeInstalledApp(string version, string outputDir, string nuspecFile = null)
+        {
+            var targetDir = default(string);
+
+            var nuget = IntegrationTestHelper.GetPath("..", ".nuget", "nuget.exe");
+            nuspecFile = nuspecFile ?? "SquirrelInstalledApp.nuspec";
+
+            using (var clearTemp = Utility.WithTempDirectory(out targetDir)) {
+                var nuspec = File.ReadAllText(IntegrationTestHelper.GetPath("fixtures", nuspecFile), Encoding.UTF8);
+                File.WriteAllText(Path.Combine(targetDir, nuspecFile), nuspec.Replace("0.1.0", version), Encoding.UTF8);
+
+                File.Copy(
+                    IntegrationTestHelper.GetPath("fixtures", "SquirrelAwareApp.exe"), 
+                    Path.Combine(targetDir, "SquirrelAwareApp.exe"));
+                File.Copy(
+                    IntegrationTestHelper.GetPath("fixtures", "NotSquirrelAwareApp.exe"), 
+                    Path.Combine(targetDir, "NotSquirrelAwareApp.exe"));
+
+                var psi = new ProcessStartInfo(nuget, "pack " + Path.Combine(targetDir, nuspecFile)) {
+                    RedirectStandardError = true,
+                    RedirectStandardOutput = true,
+                    UseShellExecute = false,
+                    CreateNoWindow = true,
+                    WorkingDirectory = targetDir,
+                    WindowStyle = ProcessWindowStyle.Hidden,
+                };
+
+                var pi = Process.Start(psi);
+                pi.WaitForExit();
+                var output = pi.StandardOutput.ReadToEnd();
+                var err = pi.StandardError.ReadToEnd();
+                Console.WriteLine(output);  Console.WriteLine(err);
+
+                var di = new DirectoryInfo(targetDir);
+                var pkg = di.EnumerateFiles("*.nupkg").First();
+
+                var targetPkgFile = Path.Combine(outputDir, pkg.Name);
+                File.Copy(pkg.FullName, targetPkgFile);
+                return targetPkgFile;
+            }
+        }
+
         public static IDisposable WithFakeInstallDirectory(out string path)
         {
             return WithFakeInstallDirectory("SampleUpdatingApp.1.1.0.0.nupkg", out path);

test/UtilityTests.cs

@@ -52,6 +52,16 @@ namespace Squirrel.Tests.Core
             }
         }
 
+        [Fact]
+        public void CreateFakePackageSmokeTest()
+        {
+            string path;
+            using (Utility.WithTempDirectory(out path)) {
+                var output = IntegrationTestHelper.CreateFakeInstalledApp("0.3.0", path);
+                Assert.True(File.Exists(output));
+            }
+        }
+
         static void CreateSampleDirectory(string directory)
         {
             while (true) {

test/fixtures/SquirrelInstalledApp.nuspec

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
+    <metadata>
+        <id>SquirrelInstalledApp</id>
+        <version>0.1.0</version>
+        <authors>paul</authors>
+        <requireLicenseAcceptance>false</requireLicenseAcceptance>
+        <description>My package description.</description>
+    </metadata>
+    <files>
+        <file src="NotSquirrelAwareApp.exe" target="lib\net45\NotSquirrelAwareApp.exe" />
+        <file src="SquirrelAwareApp.exe" target="lib\net45\SquirrelAwareApp.exe" />
+    </files>
+</package>