SharpDevelop/ICSharpCode.NRefactory.Tests/CSharp/CodeActions/CheckIfParameterIsNullTests.cs

// 
// CheckIfParameterIsNullTests.cs
//  
// Author:
//       Mike Krüger <mkrueger@xamarin.com>
// 
// Copyright (c) 2012 Xamarin Inc.
// 
// 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 FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using NUnit.Framework;
using ICSharpCode.NRefactory.CSharp.Refactoring;

namespace ICSharpCode.NRefactory.CSharp.CodeActions
{
	[TestFixture]
	public class CheckIfParameterIsNullTests : ContextActionTestBase
	{
		[Test()]
		public void Test ()
		{
			string result = RunContextAction (
				new CheckIfParameterIsNullAction (),
				"using System;" + Environment.NewLine +
				"class TestClass" + Environment.NewLine +
				"{" + Environment.NewLine +
				"	void Test (string $param)" + Environment.NewLine +
				"	{" + Environment.NewLine +
				"		Console.WriteLine (param);" + Environment.NewLine +
				"	}" + Environment.NewLine +
				"}"
			);
			
			Assert.AreEqual (
				"using System;" + Environment.NewLine +
				"class TestClass" + Environment.NewLine +
				"{" + Environment.NewLine +
				"	void Test (string param)" + Environment.NewLine +
				"	{" + Environment.NewLine +
				"		if (param == null)" + Environment.NewLine +
				"			throw new ArgumentNullException (\"param\");" + Environment.NewLine +
				"		Console.WriteLine (param);" + Environment.NewLine +
				"	}" + Environment.NewLine +
				"}", result);
		}

		[Test()]
		public void TestLambda ()
		{
			Test<CheckIfParameterIsNullAction> (@"class Foo
{
	void Test ()
	{
		var lambda = ($sender, e) => {
		};
	}
}",@"class Foo
{
	void Test ()
	{
		var lambda = (sender, e) => {
			if (sender == null)
				throw new System.ArgumentNullException (""sender"");
		};
	}
}");
		}

		[Test()]
		public void TestAnonymousMethod ()
		{
			Test<CheckIfParameterIsNullAction> (@"class Foo
{
	void Test ()
	{
		var lambda = delegate(object $sender, object e) {
		};
	}
}",@"class Foo
{
	void Test ()
	{
		var lambda = delegate(object sender, object e) {
			if (sender == null)
				throw new System.ArgumentNullException (""sender"");
		};
	}
}");
		}
	}
}