Add tests for Windows Alternate Data Streams per #24

microsoft · Jun 27, 2023 · f080994 · f080994
1 parent e1e9f45
commit f080994
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Showing 4 changed files with 34 additions and 4 deletions.
diff --git a/exe/CoWCloneFile.csproj b/exe/CoWCloneFile.csproj
@@ -9,7 +9,7 @@
  </PropertyGroup>
 
  <ItemGroup>
- <PackageReference Include="CommandLineParser" Version="2.8.0" />
+ <PackageReference Include="CommandLineParser" Version="2.9.1" />
  </ItemGroup>
 
  <ItemGroup>

diff --git a/global.json b/global.json
@@ -1,6 +1,6 @@
 {
  "sdk": {
- "version": "6.0.400",
- "rollForward": "feature"
+ "version": "6.0",
+ "rollForward": "minor"
  }
 }
diff --git a/tests/benchmark/CoWBenchmark.csproj b/tests/benchmark/CoWBenchmark.csproj
@@ -7,7 +7,7 @@
  </PropertyGroup>
 
  <ItemGroup>
- <PackageReference Include="BenchmarkDotNet" Version="0.13.2" />
+ <PackageReference Include="BenchmarkDotNet" Version="0.13.5" />
  </ItemGroup>
 
  <ItemGroup>

diff --git a/tests/unit/Windows/CopyOnWriteTests_Windows.cs b/tests/unit/Windows/CopyOnWriteTests_Windows.cs
@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
@@ -133,6 +134,35 @@ public async Task ReFSPositiveDetectionAndCloneFileCorrectBehavior(CloneFlags cl
  string dest2Contents = await File.ReadAllTextAsync(dest2Path);
  Assert.AreEqual("AABBCCDD", dest2Contents);
 
+ // Clone a file with an Alternate Data Stream.
+ string adsSource = Path.Combine(refsTestRoot, "AltDataStreamSource");
+ var adsSourceFI = new FileInfo(adsSource);
+ await File.WriteAllTextAsync(adsSource, "aaaaa");
+ await File.WriteAllTextAsync(adsSource + ":x", "bbbbbbb");
+ string adsDest = Path.Combine(refsTestRoot, "AltDataStreamDestination");
+ cow.CloneFile(adsSource, adsDest, cloneFlags);
+ Assert.IsTrue(File.Exists(adsDest));
+ var adsDestFI = new FileInfo(adsDest);
+ Assert.AreEqual(adsSourceFI.Length, adsDestFI.Length);
+ string adsDestContents = await File.ReadAllTextAsync(adsDest);
+ Assert.AreEqual("aaaaa", adsDestContents);
+ Assert.IsFalse(File.Exists(adsDest + ":x"), "Expect that the alt data stream was not cloned");
+
+ const int ERROR_NOT_SUPPORTED = 50;
+ try
+ {
+ cow.CloneFile(source1Path, adsDest + ":x", cloneFlags);
+ Assert.Fail("Expected ERROR_NOT_SUPPORTED exception. Has cloning an alt data stream been added in newer Windows?");
+ }
+ catch (Win32Exception win32Ex) when (win32Ex.NativeErrorCode == ERROR_NOT_SUPPORTED)
+ {
+ // Expected.
+ }
+ catch (Exception ex)
+ {
+ Console.WriteLine(ex.ToString());
+ }
+
  // TODO: Clone a hardlink and symlink.
 
  // Delete original file, ensure clones remain materialized.