ILSpy/ILSpy.Tests/Analyzers/TypeUsedByAnalyzerTests.cs

// Copyright (c) 2020 Siegfried Pammer
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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using System.Linq;

using ICSharpCode.Decompiler.TypeSystem;
using ICSharpCode.ILSpyX;
using ICSharpCode.ILSpyX.Analyzers;
using ICSharpCode.ILSpyX.Analyzers.Builtin;

using NUnit.Framework;

namespace ICSharpCode.ILSpy.Tests.Analyzers
{
	[TestFixture, Parallelizable(ParallelScope.All)]
	public class TypeUsedByAnalyzerTests
	{
		AssemblyList assemblyList;
		CSharpLanguage language;
		LoadedAssembly testAssembly;
		ICompilation testAssemblyTypeSystem;

		[OneTimeSetUp]
		public void Setup()
		{
			assemblyList = new AssemblyList();
			testAssembly = assemblyList.OpenAssembly(typeof(MethodUsesAnalyzerTests).Assembly.Location);
			testAssemblyTypeSystem = new DecompilerTypeSystem(testAssembly.GetMetadataFileOrNull(), testAssembly.GetAssemblyResolver());
			language = new CSharpLanguage([]);
		}

		[Test]
		public void SystemInt32UsedByMainAssembly()
		{
			var context = new AnalyzerContext { AssemblyList = assemblyList, Language = language };
			var symbol = testAssemblyTypeSystem.FindType(typeof(int)).GetDefinition();

			var results = new TypeUsedByAnalyzer().Analyze(symbol, context).ToList();

			Assert.That(results, Is.Not.Empty);
			var method = results.OfType<IMethod>().SingleOrDefault(m => m.FullName == "ICSharpCode.ILSpy.Tests.Analyzers.TestCases.Main.MainAssembly.UsesInt32");
			Assert.That(method, Is.Not.Null);
			Assert.That(!method.MetadataToken.IsNil);
		}
	}
}