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Add NativeAOT + satellite assembly integration test #53971

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f2736b6
Initial plan
Copilot Apr 17, 2026
0a8d7f0
Add NativeAOT satellite assembly publish test
Copilot Apr 17, 2026
981ab55
Derive ResourceManager base name from projectName variable
Copilot Apr 17, 2026
4649d4c
Merge branch 'main' into copilot/add-native-aot-satellite-test
sbomer May 7, 2026
59d1b90
Fix NativeAOT satellite test: assert assemblies are embedded, not pub…
sbomer May 7, 2026
50f3bd4
Fix NativeAOT satellite test: assert all satellites are embedded, not…
sbomer May 7, 2026
c4c8164
Remove package satellite assertions that vary by runtime version
sbomer May 7, 2026
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79 changes: 79 additions & 0 deletions test/Microsoft.NET.Publish.Tests/GivenThatWeWantToPublishAnAotApp.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1058,6 +1058,85 @@ private void GetKnownILCompilerPackVersion(TestAsset testAsset, string targetFra
.Single();
}

[RequiresMSBuildVersionFact("17.0.0.32901")]
public void NativeAot_app_publishes_with_app_and_package_satellite_assemblies()
{
var projectName = "NativeAotAppWithSatellites";
var testProject = CreateHelloWorldTestProject(ToolsetInfo.CurrentTargetFramework, projectName, true);
testProject.RecordProperties("NETCoreSdkPortableRuntimeIdentifier");
testProject.AdditionalProperties["PublishAot"] = "true";
testProject.AdditionalProperties["SatelliteResourceLanguages"] = "fr;de";
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
testProject.AdditionalProperties["StripSymbols"] = "true";
}
testProject.PackageReferences.Add(new TestPackageReference("System.Spatial", "5.8.3"));

// Override Program.cs to look up a French resource string at runtime
testProject.SourceFiles[$"{projectName}.cs"] = $@"
using System;
using System.Globalization;
using System.Resources;
class Test
{{
static int Main()
{{
var rm = new ResourceManager(""{projectName}.Strings"", typeof(Test).Assembly);
var value = rm.GetString(""HelloWorld"", CultureInfo.GetCultureInfo(""fr""));
Console.WriteLine(value);
return value == ""Bonjour"" ? 0 : 1;
}}
}}";

// Neutral-culture fallback resource
testProject.EmbeddedResources["Strings.resx"] = @"<?xml version=""1.0"" encoding=""utf-8""?>
<root>
<resheader name=""resmimetype""><value>text/microsoft-resx</value></resheader>
<resheader name=""version""><value>2.0</value></resheader>
<resheader name=""reader""><value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value></resheader>
<resheader name=""writer""><value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value></resheader>
<data name=""HelloWorld"" xml:space=""preserve""><value>Hello</value></data>
</root>";

// French satellite resource
testProject.EmbeddedResources["Strings.fr.resx"] = @"<?xml version=""1.0"" encoding=""utf-8""?>
<root>
<resheader name=""resmimetype""><value>text/microsoft-resx</value></resheader>
<resheader name=""version""><value>2.0</value></resheader>
<resheader name=""reader""><value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value></resheader>
<resheader name=""writer""><value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value></resheader>
<data name=""HelloWorld"" xml:space=""preserve""><value>Bonjour</value></data>
</root>";

var testAsset = TestAssetsManager.CreateTestProject(testProject);
var publishCommand = new PublishCommand(Log, Path.Combine(testAsset.TestRoot, testProject.Name));
publishCommand
.Execute("/p:UseCurrentRuntimeIdentifier=true", "/p:SelfContained=true")
.Should().Pass();

var buildProperties = testProject.GetPropertyValues(testAsset.TestRoot, ToolsetInfo.CurrentTargetFramework);
var rid = buildProperties["NETCoreSdkPortableRuntimeIdentifier"];
var publishDirectory = publishCommand.GetOutputDirectory(targetFramework: ToolsetInfo.CurrentTargetFramework, runtimeIdentifier: rid).FullName;

// NativeAOT embeds app-defined satellite assemblies into the native binary, so they
// should NOT appear as separate files in the publish directory (dotnet/runtime#124191).
File.Exists(Path.Combine(publishDirectory, "fr", $"{projectName}.resources.dll")).Should().BeFalse("fr app satellite should be embedded, not published separately");

// Satellite for a non-selected culture (ja) should be absent
File.Exists(Path.Combine(publishDirectory, "ja", "System.Spatial.resources.dll")).Should().BeFalse("ja System.Spatial satellite should be filtered out");

// Published output should be a native image
var publishedExe = Path.Combine(publishDirectory, $"{projectName}{Constants.ExeSuffix}");
File.Exists(publishedExe).Should().BeTrue();
IsNativeImage(publishedExe).Should().BeTrue();

// Running the native image should resolve the French resource correctly
new RunExeCommand(Log, publishedExe)
.Execute()
.Should().Pass()
.And.HaveStdOutContaining("Bonjour");
}

private void CheckIlcVersions(TestAsset testAsset, string targetFramework, string rid, string expectedVersion, bool useRuntimePackLayout)
{
// Compiler version matches expected version
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