housekeeping: Add XamlNameReferenceGenerator.Tests (#7)

* Add basic MiniCompiler unit tests
* Add XamlX tests stub file

src/XamlNameReferenceGenerator.Tests/MiniCompilerTests.cs

@@ -0,0 +1,51 @@
+using System;
+using System.ComponentModel;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp;
+using XamlNameReferenceGenerator.Infrastructure;
+using XamlX;
+using XamlX.Parsers;
+using Xunit;
+
+namespace XamlNameReferenceGenerator.Tests
+{
+    public class MiniCompilerTests
+    {
+        private const string MiniClass = "namespace Example { public class Valid { public int Foo() => 21; } }";
+        private const string MiniInvalidXaml = "<Invalid xmlns='clr-namespace:Example;assembly=Example' />";
+        private const string MiniValidXaml = "<Valid xmlns='clr-namespace:Example;assembly=Example' />";
+
+        [Fact]
+        public void Should_Resolve_Types_From_Valid_Xaml_Markup()
+        {
+            var xaml = XDocumentXamlParser.Parse(MiniValidXaml);
+            var compilation = CreateBasicCompilation(MiniClass, "Example");
+
+            MiniCompiler
+                .CreateDefault(new RoslynTypeSystem(compilation))
+                .Transform(xaml);
+
+            Assert.NotNull(xaml.Root);
+        }
+
+        [Fact]
+        public void Should_Throw_When_Unable_To_Resolve_Types()
+        {
+            var xaml = XDocumentXamlParser.Parse(MiniInvalidXaml);
+            var compilation = CreateBasicCompilation(MiniClass, "Example");
+            var compiler = MiniCompiler.CreateDefault(new RoslynTypeSystem(compilation));
+
+            Assert.Throws<XamlParseException>(() => compiler.Transform(xaml));
+        }
+
+        private static CSharpCompilation CreateBasicCompilation(string source, string name) =>
+            CSharpCompilation
+                .Create(name, options: new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary))
+                .AddReferences(MetadataReference.CreateFromFile(typeof(string).Assembly.Location))
+                .AddReferences(MetadataReference.CreateFromFile(typeof(IServiceProvider).Assembly.Location))
+                .AddReferences(MetadataReference.CreateFromFile(typeof(ITypeDescriptorContext).Assembly.Location))
+                .AddReferences(MetadataReference.CreateFromFile(typeof(ISupportInitialize).Assembly.Location))
+                .AddReferences(MetadataReference.CreateFromFile(typeof(TypeConverterAttribute).Assembly.Location))
+                .AddSyntaxTrees(CSharpSyntaxTree.ParseText(source));
+    }
+}

src/XamlNameReferenceGenerator.Tests/XamlNameReferenceGenerator.Tests.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net5</TargetFramework>
+        <LangVersion>preview</LangVersion>
+    </PropertyGroup>
+    <ItemGroup>
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.8.0-3.final" />
+        <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.0.0" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
+        <PackageReference Include="xunit" Version="2.4.1" />
+        <PackageReference Include="xunit.runner.console" Version="2.4.1" />
+        <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
+    </ItemGroup>
+    <ItemGroup>
+        <PackageReference Include="Avalonia" Version="0.10.0-preview5" />
+        <PackageReference Include="Avalonia.Desktop" Version="0.10.0-preview5" />
+        <PackageReference Include="Avalonia.ReactiveUI" Version="0.10.0-preview5" />
+    </ItemGroup>
+    <ItemGroup>
+        <ProjectReference Include="../XamlNameReferenceGenerator/XamlNameReferenceGenerator.csproj" />
+    </ItemGroup>
+</Project>

src/XamlNameReferenceGenerator.Tests/XamlXNameReferenceXamlParserTests.cs

@@ -0,0 +1,13 @@
+using Xunit;
+
+namespace XamlNameReferenceGenerator.Tests
+{
+    public class XamlXNameReferenceXamlParserTests
+    {
+        [Fact]
+        public void Should_Resolve_Named_Controls_From_Xaml_Markup()
+        {
+            // TODO: Fix all stuff.
+        }
+    }
+}

src/XamlNameReferenceGenerator.sln

@@ -4,6 +4,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "XamlNameReferenceGenerator"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "XamlNameReferenceGenerator.Sandbox", "XamlNameReferenceGenerator.Sandbox\XamlNameReferenceGenerator.Sandbox.csproj", "{C90BB1C6-5C33-494A-96FA-FEE7B34CA83C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "XamlNameReferenceGenerator.Tests", "XamlNameReferenceGenerator.Tests\XamlNameReferenceGenerator.Tests.csproj", "{B13A0A44-85BC-49A7-970F-6C9BF8BDFD54}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -18,5 +20,9 @@ Global
 		{C90BB1C6-5C33-494A-96FA-FEE7B34CA83C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C90BB1C6-5C33-494A-96FA-FEE7B34CA83C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C90BB1C6-5C33-494A-96FA-FEE7B34CA83C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B13A0A44-85BC-49A7-970F-6C9BF8BDFD54}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B13A0A44-85BC-49A7-970F-6C9BF8BDFD54}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B13A0A44-85BC-49A7-970F-6C9BF8BDFD54}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B13A0A44-85BC-49A7-970F-6C9BF8BDFD54}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal

src/XamlNameReferenceGenerator/Infrastructure/MiniCompiler.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using XamlX.Compiler;
 using XamlX.Emit;
 using XamlX.Transform;
@@ -9,13 +10,16 @@ namespace XamlNameReferenceGenerator.Infrastructure
 {
     internal sealed class MiniCompiler : XamlCompiler<object, IXamlEmitResult>
     {
-        public static MiniCompiler CreateDefault(RoslynTypeSystem typeSystem)
+        public static MiniCompiler CreateDefault(RoslynTypeSystem typeSystem, params string[] additionalTypes)
         {
-            var avaloniaXmlns = typeSystem.GetType("Avalonia.Metadata.XmlnsDefinitionAttribute");
+            var mappings = new XamlLanguageTypeMappings(typeSystem);
+            foreach (var additionalType in additionalTypes)
+                mappings.XmlnsAttributes.Add(typeSystem.GetType(additionalType));
+
             var configuration = new TransformerConfiguration(
                 typeSystem,
                 typeSystem.Assemblies[0],
-                new XamlLanguageTypeMappings(typeSystem) {XmlnsAttributes = {avaloniaXmlns}});
+                mappings);
             return new MiniCompiler(configuration);
         }
         

src/XamlNameReferenceGenerator/NameReferenceGenerator.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Runtime.CompilerServices;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Text;
 using System.Text;
@@ -8,6 +9,8 @@ using Microsoft.CodeAnalysis.CSharp;
 using XamlNameReferenceGenerator.Infrastructure;
 using XamlNameReferenceGenerator.Parsers;
 
+[assembly: InternalsVisibleTo("XamlNameReferenceGenerator.Tests")]
+
 namespace XamlNameReferenceGenerator
 {
     [Generator]

src/XamlNameReferenceGenerator/Parsers/XamlXNameReferenceXamlParser.cs

@@ -8,6 +8,7 @@ namespace XamlNameReferenceGenerator.Parsers
 {
     internal class XamlXNameReferenceXamlParser : INameReferenceXamlParser
     {
+        private const string AvaloniaXmlnsAttribute = "Avalonia.Metadata.XmlnsDefinitionAttribute";
         private readonly CSharpCompilation _compilation;
 
         public XamlXNameReferenceXamlParser(CSharpCompilation compilation) => _compilation = compilation;
@@ -20,7 +21,7 @@ namespace XamlNameReferenceGenerator.Parsers
             });
 
             MiniCompiler
-                .CreateDefault(new RoslynTypeSystem(_compilation))
+                .CreateDefault(new RoslynTypeSystem(_compilation), AvaloniaXmlnsAttribute)
                 .Transform(parsed);
             
             var visitor = new NamedControlCollector();