From 6085b60fc227a3bf5266ca36946372774ba8c286 Mon Sep 17 00:00:00 2001
From: Daniel Grunwald <daniel@danielgrunwald.de>
Date: Thu, 17 Feb 2011 23:53:39 +0100
Subject: [PATCH] Add dumb testing framework.

---
 .../Tests/DelegateConstruction.cs             |  41 +++++++
 .../Tests/ICSharpCode.Decompiler.Tests.csproj |  66 ++++++++++++
 ICSharpCode.Decompiler/Tests/Loops.cs         |  30 ++++++
 ICSharpCode.Decompiler/Tests/TestRunner.cs    | 101 ++++++++++++++++++
 ILSpy.sln                                     |  10 ++
 5 files changed, 248 insertions(+)
 create mode 100644 ICSharpCode.Decompiler/Tests/DelegateConstruction.cs
 create mode 100644 ICSharpCode.Decompiler/Tests/ICSharpCode.Decompiler.Tests.csproj
 create mode 100644 ICSharpCode.Decompiler/Tests/Loops.cs
 create mode 100644 ICSharpCode.Decompiler/Tests/TestRunner.cs

diff --git a/ICSharpCode.Decompiler/Tests/DelegateConstruction.cs b/ICSharpCode.Decompiler/Tests/DelegateConstruction.cs
new file mode 100644
index 000000000..34657126e
--- /dev/null
+++ b/ICSharpCode.Decompiler/Tests/DelegateConstruction.cs
@@ -0,0 +1,41 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+using System;
+
+public static class DelegateConstruction
+{
+	public static void Test(this string a)
+	{
+	}
+	
+	public static Action<string> ExtensionMethodUnbound()
+	{
+		return new Action<string>(DelegateConstruction.Test);
+	}
+	
+	public static Action ExtensionMethodBound()
+	{
+		return new Action("abc".Test);
+	}
+	
+	public static Action ExtensionMethodBoundOnNull()
+	{
+		return new Action(((string)null).Test);
+	}
+	
+	public static object StaticMethod()
+	{
+		return new Func<Action>(DelegateConstruction.ExtensionMethodBound);
+	}
+	
+	public static object InstanceMethod()
+	{
+		return new Func<string>("hello".ToUpper);
+	}
+	
+	public static object InstanceMethodOnNull()
+	{
+		return new Func<string>(((string)null).ToUpper);
+	}
+}
diff --git a/ICSharpCode.Decompiler/Tests/ICSharpCode.Decompiler.Tests.csproj b/ICSharpCode.Decompiler/Tests/ICSharpCode.Decompiler.Tests.csproj
new file mode 100644
index 000000000..8d0896ef5
--- /dev/null
+++ b/ICSharpCode.Decompiler/Tests/ICSharpCode.Decompiler.Tests.csproj
@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build">
+  <PropertyGroup>
+    <ProjectGuid>{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}</ProjectGuid>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>ICSharpCode.Decompiler.Tests</RootNamespace>
+    <AssemblyName>ICSharpCode.Decompiler.Tests</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <AllowUnsafeBlocks>False</AllowUnsafeBlocks>
+    <NoStdLib>False</NoStdLib>
+    <WarningLevel>4</WarningLevel>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Platform)' == 'x86' ">
+    <PlatformTarget>x86</PlatformTarget>
+    <RegisterForComInterop>False</RegisterForComInterop>
+    <GenerateSerializationAssemblies>Auto</GenerateSerializationAssemblies>
+    <BaseAddress>4194304</BaseAddress>
+    <FileAlignment>4096</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+    <OutputPath>..\bin\Debug\</OutputPath>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>Full</DebugType>
+    <Optimize>False</Optimize>
+    <CheckForOverflowUnderflow>True</CheckForOverflowUnderflow>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+    <OutputPath>..\bin\Release\</OutputPath>
+    <DebugSymbols>false</DebugSymbols>
+    <DebugType>None</DebugType>
+    <Optimize>True</Optimize>
+    <CheckForOverflowUnderflow>False</CheckForOverflowUnderflow>
+    <DefineConstants>TRACE</DefineConstants>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Xml.Linq">
+      <RequiredTargetFramework>3.5</RequiredTargetFramework>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="DelegateConstruction.cs" />
+    <Compile Include="Loops.cs" />
+    <Compile Include="TestRunner.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\Mono.Cecil\Mono.Cecil.csproj">
+      <Project>{D68133BD-1E63-496E-9EDE-4FBDBF77B486}</Project>
+      <Name>Mono.Cecil</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\ICSharpCode.Decompiler.csproj">
+      <Project>{984CC812-9470-4A13-AFF9-CC44068D666C}</Project>
+      <Name>ICSharpCode.Decompiler</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.Targets" />
+</Project>
\ No newline at end of file
diff --git a/ICSharpCode.Decompiler/Tests/Loops.cs b/ICSharpCode.Decompiler/Tests/Loops.cs
new file mode 100644
index 000000000..838a6e886
--- /dev/null
+++ b/ICSharpCode.Decompiler/Tests/Loops.cs
@@ -0,0 +1,30 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+using System;
+using System.Collections.Generic;
+
+public class Loops
+{
+	public void ForEach(IEnumerable<string> enumerable)
+	{
+		foreach (string text in enumerable) {
+			text.ToLower();
+		}
+	}
+	
+	public void ForEachOverArray(string[] array)
+	{
+		foreach (string text in array) {
+			text.ToLower();
+		}
+	}
+	
+	public void ForOverArray(string[] array)
+	{
+		for (int i = 0; i < array.Length; i++) {
+			array[i].ToLower();
+		}
+	}
+}
+
diff --git a/ICSharpCode.Decompiler/Tests/TestRunner.cs b/ICSharpCode.Decompiler/Tests/TestRunner.cs
new file mode 100644
index 000000000..9c3ba5c9d
--- /dev/null
+++ b/ICSharpCode.Decompiler/Tests/TestRunner.cs
@@ -0,0 +1,101 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+using System;
+using System.CodeDom.Compiler;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using Decompiler;
+using Microsoft.CSharp;
+using Mono.Cecil;
+
+namespace ICSharpCode.Decompiler.Tests
+{
+	public class TestRunner
+	{
+		public static void Main()
+		{
+			Test(@"..\..\Tests\DelegateConstruction.cs");
+			
+			Console.ReadKey();
+		}
+		
+		
+		
+		static void Test(string fileName)
+		{
+			string code = File.ReadAllText(fileName);
+			AssemblyDefinition assembly = Compile(code);
+			AstBuilder decompiler = new AstBuilder();
+			decompiler.AddAssembly(assembly);
+			StringWriter output = new StringWriter();
+			decompiler.GenerateCode(new PlainTextOutput(output));
+			StringWriter diff = new StringWriter();
+			if (!Compare(code, output.ToString(), diff)) {
+				throw new Exception("Test failure." + Environment.NewLine + diff.ToString());
+			}
+		}
+		
+		static bool Compare(string input1, string input2, StringWriter diff)
+		{
+			bool ok = true;
+			int numberOfContinuousMistakes = 0;
+			StringReader r1 = new StringReader(input1);
+			StringReader r2 = new StringReader(input2);
+			string line1, line2;
+			while ((line1 = r1.ReadLine()) != null) {
+				string trimmed = line1.Trim();
+				if (trimmed.Length == 0 || trimmed.StartsWith("//", StringComparison.Ordinal) || line1.StartsWith("using ", StringComparison.Ordinal)) {
+					diff.WriteLine(" " + line1);
+					continue;
+				}
+				line2 = r2.ReadLine();
+				while (line2 != null && (line2.StartsWith("using ", StringComparison.Ordinal) || line2.Trim().Length == 0))
+					line2 = r2.ReadLine();
+				if (line2 == null) {
+					ok = false;
+					diff.WriteLine("-" + line1);
+					continue;
+				}
+				if (line1 != line2) {
+					ok = false;
+					if (numberOfContinuousMistakes++ > 5)
+						return false;
+					diff.WriteLine("-" + line1);
+					diff.WriteLine("+" + line2);
+				} else {
+					if (numberOfContinuousMistakes > 0)
+						numberOfContinuousMistakes--;
+					diff.WriteLine(" " + line1);
+				}
+			}
+			while ((line2 = r2.ReadLine()) != null) {
+				ok = false;
+				diff.WriteLine("+" + line1);
+			}
+			return ok;
+		}
+		
+		static AssemblyDefinition Compile(string code)
+		{
+			CSharpCodeProvider provider = new CSharpCodeProvider(new Dictionary<string, string> {{ "CompilerVersion", "v4.0" }});
+			CompilerParameters options = new CompilerParameters();
+			options.ReferencedAssemblies.Add("System.Core.dll");
+			CompilerResults results = provider.CompileAssemblyFromSource(options, code);
+			try {
+				if (results.Errors.Count > 0) {
+					StringBuilder b = new StringBuilder("Compiler error:");
+					foreach (var error in results.Errors) {
+						b.AppendLine(error.ToString());
+					}
+					throw new Exception(b.ToString());
+				}
+				return AssemblyDefinition.ReadAssembly(results.PathToAssembly);
+			} finally {
+				File.Delete(results.PathToAssembly);
+				results.TempFiles.Delete();
+			}
+		}
+	}
+}
diff --git a/ILSpy.sln b/ILSpy.sln
index 449ef4139..409cbd730 100644
--- a/ILSpy.sln
+++ b/ILSpy.sln
@@ -14,6 +14,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ICSharpCode.Decompiler", "I
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ICSharpCode.NRefactory", "NRefactory\ICSharpCode.NRefactory\ICSharpCode.NRefactory.csproj", "{3B2A5653-EC97-4001-BB9B-D90F1AF2C371}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ICSharpCode.Decompiler.Tests", "ICSharpCode.Decompiler\Tests\ICSharpCode.Decompiler.Tests.csproj", "{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x86 = Debug|x86
@@ -70,5 +72,13 @@ Global
 		{3B2A5653-EC97-4001-BB9B-D90F1AF2C371}.Release|x86.ActiveCfg = Release|Any CPU
 		{3B2A5653-EC97-4001-BB9B-D90F1AF2C371}.Release|Any CPU.Build.0 = Release|Any CPU
 		{3B2A5653-EC97-4001-BB9B-D90F1AF2C371}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}.Debug|x86.Build.0 = Debug|x86
+		{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}.Debug|x86.ActiveCfg = Debug|x86
+		{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}.Debug|Any CPU.Build.0 = Debug|x86
+		{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}.Debug|Any CPU.ActiveCfg = Debug|x86
+		{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}.Release|x86.Build.0 = Release|x86
+		{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}.Release|x86.ActiveCfg = Release|x86
+		{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}.Release|Any CPU.Build.0 = Release|x86
+		{FEC0DA52-C4A6-4710-BE36-B484A20C5E22}.Release|Any CPU.ActiveCfg = Release|x86
 	EndGlobalSection
 EndGlobal