SharpDevelop/ICSharpCode.NRefactory.Tests/CSharp/CSharpOutputVisitorTests.cs

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using System;
using System.IO;
using NUnit.Framework;

namespace ICSharpCode.NRefactory.CSharp
{
	[TestFixture]
	public class CSharpOutputVisitorTests
	{
		void AssertOutput(string expected, AstNode node, CSharpFormattingOptions policy = null)
		{
			if (policy == null)
				policy = new CSharpFormattingOptions();
			StringWriter w = new StringWriter();
			w.NewLine = "\n";
			node.AcceptVisitor(new CSharpOutputVisitor(new TextWriterOutputFormatter(w) { IndentationString = "$" }, policy));
			Assert.AreEqual(expected.Replace("\r", ""), w.ToString());
		}
		
		[Test]
		public void AssignmentInCollectionInitializer()
		{
			Expression expr = new ObjectCreateExpression {
				Type = new SimpleType("List"),
				Initializer = new ArrayInitializerExpression(
					new ArrayInitializerExpression(
						new AssignmentExpression(new IdentifierExpression("a"), new PrimitiveExpression(1))
					)
				)
			};
			
			AssertOutput("new List {\n${\n$$a = 1\n$}\n}", expr);
		}
		
		[Test]
		public void EnumDeclarationWithInitializers ()
		{
			TypeDeclaration type = new TypeDeclaration {
				ClassType = ClassType.Enum,
				Name = "DisplayFlags",
				Members = {
					new EnumMemberDeclaration {
						Name = "D",
						Initializer = new PrimitiveExpression(4)
					}
				}};
			
			AssertOutput("enum DisplayFlags\n{\n$D = 4\n}\n", type);
		}
		
		[Test]
		public void InlineCommentAtEndOfCondition()
		{
			IfElseStatement condition = new IfElseStatement();
			condition.AddChild(new CSharpTokenNode(new TextLocation(1, 1)), IfElseStatement.IfKeywordRole);
			condition.AddChild(new CSharpTokenNode(new TextLocation(1, 4)), Roles.LPar);
			condition.AddChild(new IdentifierExpression("cond", new TextLocation(1, 5)), IfElseStatement.ConditionRole);
			condition.AddChild(new Comment(CommentType.MultiLine, new TextLocation(1, 9), new TextLocation(1, 14)) { Content = "a" }, Roles.Comment);
			condition.AddChild(new CSharpTokenNode(new TextLocation(1, 14)), Roles.RPar);
			condition.AddChild(new ReturnStatement(), IfElseStatement.TrueRole);
			
			AssertOutput("if (cond/*a*/)\n$return;\n", condition);
		}
	}
}