Add test coverage for static members on interfaces (#23928)

This has been supported since v1 but we don't have much test coverage.

C# is going to enable interfaces to have static members and static constructors so we better start testing it.

4 files changed, 143 insertions, 0 deletions

diff --git a/tests/src/reflection/StaticInterfaceMembers/consumer.cs b/tests/src/reflection/StaticInterfaceMembers/consumer.cs
new file mode 100644
index 0000000000..c5e8f20736
--- /dev/null
+++ b/tests/src/reflection/StaticInterfaceMembers/consumer.cs
@@ -0,0 +1,35 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Reflection;
+
+class Program
+{
+    static int Main()
+    {
+        {
+            FieldInfo fi = typeof(IFoo<object>).GetField("O");
+            object val = fi.GetValue(null);
+            if (!object.ReferenceEquals(val, typeof(object[])))
+                throw new Exception();
+        }
+
+        {
+            MethodInfo mi = typeof(IFoo<string>).GetMethod("GimmeT");
+            object val = mi.Invoke(null, Array.Empty<object>());
+            if (!object.ReferenceEquals(val, typeof(string)))
+                throw new Exception();
+        }
+
+        {
+            MethodInfo mi = typeof(IFoo<object>).GetMethod("GimmeU").MakeGenericMethod(typeof(string));
+            object val = mi.Invoke(null, Array.Empty<object>());
+            if (!object.ReferenceEquals(val, typeof(string)))
+                throw new Exception();
+        }
+
+        return 100;
+    }
+}
\ No newline at end of file
diff --git a/tests/src/reflection/StaticInterfaceMembers/consumer.csproj b/tests/src/reflection/StaticInterfaceMembers/consumer.csproj
new file mode 100644
index 0000000000..ac71bb0251
--- /dev/null
+++ b/tests/src/reflection/StaticInterfaceMembers/consumer.csproj
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{95DFC527-4DC1-495E-97D7-E94EE1F7140D}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
+    <CLRTestKind>BuildAndRun</CLRTestKind>
+    <CLRTestPriority>0</CLRTestPriority>
+  </PropertyGroup>
+  <!-- Default configurations to help VS understand the configurations -->
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "></PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "></PropertyGroup>
+  <ItemGroup>
+    <CodeAnalysisDependentAssemblyPaths Condition=" '$(VS100COMNTOOLS)' != '' " Include="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies">
+      <Visible>False</Visible>
+    </CodeAnalysisDependentAssemblyPaths>
+  </ItemGroup>
+  <ItemGroup>
+    <!-- Add Compile Object Here -->
+    <Compile Include="consumer.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="provider.ilproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <NoWarn Include="42016,42020,42025,42024" />
+  </ItemGroup>
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+  <PropertyGroup Condition=" '$(MsBuildProjectDirOverride)' != '' "></PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/tests/src/reflection/StaticInterfaceMembers/provider.il b/tests/src/reflection/StaticInterfaceMembers/provider.il
new file mode 100644
index 0000000000..8ce9d85ed8
--- /dev/null
+++ b/tests/src/reflection/StaticInterfaceMembers/provider.il
@@ -0,0 +1,34 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+.assembly provider { }
+
+.assembly extern mscorlib { }
+
+.class interface public IFoo<T>
+{
+  .field public static class [mscorlib]System.Type O
+
+  .method public static specialname rtspecialname void .cctor()
+  {
+    ldtoken !T[]
+    call class [mscorlib]System.Type class [mscorlib]System.Type::GetTypeFromHandle(valuetype [mscorlib]System.RuntimeTypeHandle)
+    stsfld class [mscorlib]System.Type class IFoo<!T>::O
+    ret
+  }
+
+  .method public static class [mscorlib]System.Type GimmeT()
+  {
+    ldtoken !T
+    call class [mscorlib]System.Type class [mscorlib]System.Type::GetTypeFromHandle(valuetype [mscorlib]System.RuntimeTypeHandle)
+    ret
+  }
+
+  .method public static class [mscorlib]System.Type GimmeU<U>()
+  {
+    ldtoken !!U
+    call class [mscorlib]System.Type class [mscorlib]System.Type::GetTypeFromHandle(valuetype [mscorlib]System.RuntimeTypeHandle)
+    ret
+  }
+}
diff --git a/tests/src/reflection/StaticInterfaceMembers/provider.ilproj b/tests/src/reflection/StaticInterfaceMembers/provider.ilproj
new file mode 100644
index 0000000000..919182beb5
--- /dev/null
+++ b/tests/src/reflection/StaticInterfaceMembers/provider.ilproj
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <AssemblyName>$(MSBuildProjectName)</AssemblyName>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{95DFC527-4DC1-495E-97D7-E94EE1F7140D}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
+  </PropertyGroup>
+  <!-- Default configurations to help VS understand the configurations -->
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+  </PropertyGroup>
+  <ItemGroup>
+    <CodeAnalysisDependentAssemblyPaths Condition=" '$(VS100COMNTOOLS)' != '' " Include="$(VS100COMNTOOLS)..\IDE\PrivateAssemblies">
+      <Visible>False</Visible>
+    </CodeAnalysisDependentAssemblyPaths>
+  </ItemGroup>
+  <PropertyGroup>
+    
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="provider.il" />
+  </ItemGroup>
+  <ItemGroup>
+    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+  </ItemGroup>
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+  <PropertyGroup Condition=" '$(MsBuildProjectDirOverride)' != '' ">
+  </PropertyGroup> 
+</Project>