[Aidl-Tests] Add some unit tests and infrastructure for XAT.Aidl.

Author: jpobst

Xamarin.Android-Tests.sln

@@ -90,6 +90,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Java.Interop-Tests", "tests
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Java.Interop", "external\Java.Interop\src\Java.Interop\Java.Interop.csproj", "{94BD81F7-B06F-4295-9636-F8A3B6BDC762}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Xamarin.Android.Tools.Aidl-Tests", "tests\Xamarin.Android.Tools.Aidl-Tests\Xamarin.Android.Tools.Aidl-Tests.csproj", "{883941C8-C4ED-428D-A7D2-26F2EEA23F92}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Xamarin.Android.Tools.Aidl", "src\Xamarin.Android.Tools.Aidl\Xamarin.Android.Tools.Aidl.csproj", "{302D9D2E-1F98-4374-9B6B-922F78620C4B}"
+EndProject
 Global
 	GlobalSection(SharedMSBuildProjectFiles) = preSolution
 		tests\Mono.Android-Tests\Mono.Android-Test.Shared.projitems*{0ab4956e-6fb9-4da0-9d49-ab65a3ff403a}*SharedItemsImports = 13
@@ -241,6 +245,14 @@ Global
 		{94BD81F7-B06F-4295-9636-F8A3B6BDC762}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{94BD81F7-B06F-4295-9636-F8A3B6BDC762}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{94BD81F7-B06F-4295-9636-F8A3B6BDC762}.Release|Any CPU.Build.0 = Release|Any CPU
+		{883941C8-C4ED-428D-A7D2-26F2EEA23F92}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{883941C8-C4ED-428D-A7D2-26F2EEA23F92}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{883941C8-C4ED-428D-A7D2-26F2EEA23F92}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{883941C8-C4ED-428D-A7D2-26F2EEA23F92}.Release|Any CPU.Build.0 = Release|Any CPU
+		{302D9D2E-1F98-4374-9B6B-922F78620C4B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{302D9D2E-1F98-4374-9B6B-922F78620C4B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{302D9D2E-1F98-4374-9B6B-922F78620C4B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{302D9D2E-1F98-4374-9B6B-922F78620C4B}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -278,6 +290,8 @@ Global
 		{D1243BAB-23CA-4566-A2A3-3ADA2C2DC3AF} = {EFBC4DC0-DBFF-4DAA-B0B8-6D0CB02A25F5}
 		{6CB00820-A66B-43E5-8785-ED456C6E9F39} = {EFBC4DC0-DBFF-4DAA-B0B8-6D0CB02A25F5}
 		{94BD81F7-B06F-4295-9636-F8A3B6BDC762} = {EFBC4DC0-DBFF-4DAA-B0B8-6D0CB02A25F5}
+		{883941C8-C4ED-428D-A7D2-26F2EEA23F92} = {EFBC4DC0-DBFF-4DAA-B0B8-6D0CB02A25F5}
+		{302D9D2E-1F98-4374-9B6B-922F78620C4B} = {EFBC4DC0-DBFF-4DAA-B0B8-6D0CB02A25F5}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {8643CD20-B195-4919-8135-27549488237E}

build-tools/scripts/RunTests.targets

@@ -16,6 +16,7 @@
   </PropertyGroup>
   <ItemGroup>
     <_TestAssembly Include="$(_TopDir)\bin\Test$(Configuration)\net472\Xamarin.Android.Build.Tests.dll" />
+    <_TestAssembly Include="$(_TopDir)\bin\Test$(Configuration)\net472\Xamarin.Android.Tools.Aidl-Tests.dll" />
     <_ApkTestProject Include="$(_TopDir)\tests\Mono.Android-Tests\Mono.Android-Tests.csproj" />
     <_ApkTestProject Include="$(_TopDir)\tests\CodeGen-Binding\Xamarin.Android.JcwGen-Tests\Xamarin.Android.JcwGen-Tests.csproj" />
     <_ApkTestProject Include="$(_TopDir)\tests\CodeGen-MkBundle\Xamarin.Android.MakeBundle-Tests\Xamarin.Android.MakeBundle-Tests.csproj" />

src/Xamarin.Android.Tools.Aidl/AidlCompiler.cs

@@ -77,6 +77,41 @@ public Result Run (ConverterOptions opts, Func<string,AssemblyDefinition> resolv
 
 			return result;
 		}
+
+		// This overload is primarily for unit tests.
+		public Result Run (string input, out string output, AssemblyDefinition[] references = null, ParcelableHandling parcelableHandling = ParcelableHandling.Ignore)
+		{
+			var result = new Result ();
+			var database = new BindingDatabase (references ?? Array.Empty<AssemblyDefinition> ());
+			var lang = new LanguageData (new AidlGrammar () { LanguageFlags = LanguageFlags.Default | LanguageFlags.CreateAst });
+			var parser = new Parser (lang);
+
+			var pt = parser.Parse (input);
+
+			if (pt.HasErrors ()) {
+				foreach (var l in pt.ParserMessages)
+					result.LogMessages.Add ("input.aidl", l);
+
+				output = null;
+				return result;
+			}
+
+			var unit = (CompilationUnit) pt.Root.AstNode;
+
+			var parcelables = new List<TypeName> ();
+
+			foreach (Parcelable t in unit.Types.Where (t => t is Parcelable))
+				parcelables.Add (unit.Package == null ? t.Name : new TypeName (unit.Package.Identifiers.Concat (t.Name.Identifiers).ToArray ()));
+
+			var sw = new StringWriter ();
+			var opts = new ConverterOptions { ParcelableHandling = parcelableHandling };
+
+			new CSharpCodeGenerator (sw, database).GenerateCode (unit, parcelables, opts);
+
+			output = sw.ToString ();
+
+			return result;
+		}
 	}
 }
 

src/Xamarin.Android.Tools.Aidl/BindingDatabase.cs

@@ -25,6 +25,7 @@ public BindingDatabase (IEnumerable<string> assemblies, Func<string,AssemblyDefi
 		public BindingDatabase (IEnumerable<AssemblyDefinition> asses)
 		{
 			this.asses.AddRange (asses);
+			Initialize (null, null);
 		}
 
 		public IDictionary<string,string> NamespaceMappings {

tests/Xamarin.Android.Tools.Aidl-Tests/AidlCompilerTestBase.cs

@@ -0,0 +1,61 @@
+//#define GENERATE_OUTPUT
+// This define will overwrite the files in /bin/TestData.
+// You will still need to copy them back to the original /TestData.
+
+using System;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using NUnit.Framework;
+using Xamarin.Android.Tools.Aidl;
+
+namespace Xamarin.Android.Tools.Aidl_Tests
+{
+	public class AidlCompilerTestBase
+	{
+		protected void RunTest (string name)
+		{
+			var root = Path.GetDirectoryName (Assembly.GetExecutingAssembly ().Location);
+			var file = Path.Combine (root, "TestData", name + ".txt");
+			var text = File.ReadAllText (file);
+
+			(var input, var expected_output) = SplitTestFile (text);
+
+			var compiler = new AidlCompiler ();
+			var results = compiler.Run (input, out var output);
+
+			Assert.False (results.LogMessages.Any ());
+
+#if GENERATE_OUTPUT
+			using (var sw = new StreamWriter (file)) {
+				sw.WriteLine (input);
+				sw.WriteLine ();
+				sw.WriteLine ("####");
+				sw.WriteLine ();
+				sw.WriteLine (output);
+			}
+
+			Assert.Ignore ("Generating output for this test.");
+#endif
+
+			Assert.AreEqual (expected_output, output.Trim ());
+		}
+
+		(string input, string output) SplitTestFile (string text)
+		{
+			var index = text.IndexOf ("####");
+
+			if (index < 0) {
+#if GENERATE_OUTPUT
+				return (text, null);
+#endif
+				throw new Exception ("No expected output found.");
+			}
+
+			var input = text.Substring (0, index).Trim ();
+			var output = text.Substring (index + 4).Trim ();
+
+			return (input, output);
+		}
+	}
+}

tests/Xamarin.Android.Tools.Aidl-Tests/AidlCompilerTests.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using NUnit.Framework;
+
+namespace Xamarin.Android.Tools.Aidl_Tests
+{
+	[TestFixture]
+	public class AidlCompilerTests : AidlCompilerTestBase
+	{
+		[Test]
+		public void ListAndMap () => RunTest (nameof (ListAndMap));
+
+		[Test]
+		public void NamespaceResolution () => RunTest (nameof (NamespaceResolution));
+
+		[Test]
+		public void PrimitiveTypes () => RunTest (nameof (PrimitiveTypes));
+
+		[Test]
+		public void FaceService () => RunTest (nameof (FaceService));
+
+		[Test]
+		public void IUpdateEngine () => RunTest (nameof (IUpdateEngine));
+
+		[Test]
+		public void ITelephony () => RunTest (nameof (ITelephony));
+	}
+}