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Viewing changes to external/nrefactory/ICSharpCode.NRefactory.Tests/CSharp/Parser/ParseSelfTests.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/nrefactory/ICSharpCode.NRefactory.Tests/CSharp/Parser/ParseSelfTests.cs
 
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// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
 
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// software and associated documentation files (the "Software"), to deal in the Software
 
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// without restriction, including without limitation the rights to use, copy, modify, merge,
 
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
 
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// to whom the Software is furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in all copies or
 
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// substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
 
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 
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// DEALINGS IN THE SOFTWARE.
 
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using System;
 
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using System.IO;
 
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using ICSharpCode.NRefactory.Editor;
 
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using ICSharpCode.NRefactory.TypeSystem;
 
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using NUnit.Framework;
 
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namespace ICSharpCode.NRefactory.CSharp.Parser
 
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{
 
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        /// <summary>
 
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        /// Test fixture that parses NRefactory itself,
 
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        /// ensures that there are no parser crashes while doing so,
 
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        /// and that the returned positions are consistent.
 
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        /// </summary>
 
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        [TestFixture]
 
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        public class ParseSelfTests
 
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        {
 
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                string[] fileNames;
 
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                [TestFixtureSetUp]
 
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                public void SetUp()
 
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                {
 
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                        string path = Path.GetFullPath (Path.Combine ("..", ".."));
 
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                        if (!File.Exists(Path.Combine(path, "NRefactory.sln")))
 
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                                throw new InvalidOperationException("Test cannot find the NRefactory source code in " + path);
 
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                        fileNames = Directory.GetFiles(path, "*.cs", SearchOption.AllDirectories);
 
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                }
 
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                [Test]
 
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                public void GenerateTypeSystem()
 
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                {
 
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                        IProjectContent pc = new CSharpProjectContent();
 
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                        CSharpParser parser = new CSharpParser();
 
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                        parser.GenerateTypeSystemMode = true;
 
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                        foreach (string fileName in fileNames) {
 
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                                SyntaxTree syntaxTree;
 
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                                using (var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, FileOptions.SequentialScan)) {
 
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                                        syntaxTree = parser.Parse(fs, fileName);
 
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                                }
 
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                                var unresolvedFile = syntaxTree.ToTypeSystem();
 
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                                foreach (var td in unresolvedFile.GetAllTypeDefinitions()) {
 
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                                        Assert.AreSame(unresolvedFile, td.UnresolvedFile);
 
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                                        foreach (var member in td.Members) {
 
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                                                Assert.AreSame(unresolvedFile, member.UnresolvedFile);
 
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                                                Assert.AreSame(td, member.DeclaringTypeDefinition);
 
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                                        }
 
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                                }
 
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                                pc = pc.AddOrUpdateFiles(unresolvedFile);
 
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                        }
 
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                }
 
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                #region ParseAndCheckPositions
 
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                string currentFileName;
 
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                ReadOnlyDocument currentDocument;
 
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                [Test, Ignore("Positions still are incorrect in several cases")]
 
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                public void ParseAndCheckPositions()
 
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                {
 
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                        CSharpParser parser = new CSharpParser();
 
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                        foreach (string fileName in fileNames) {
 
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                                this.currentDocument = new ReadOnlyDocument(File.ReadAllText(fileName));
 
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                                SyntaxTree syntaxTree = parser.Parse(currentDocument, fileName);
 
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                                if (parser.HasErrors)
 
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                                        continue;
 
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                                this.currentFileName = fileName;
 
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                                CheckPositionConsistency(syntaxTree);
 
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                                CheckMissingTokens(syntaxTree);
 
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                        }
 
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                }
 
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                void PrintNode (AstNode node)
 
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                {
 
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                        Console.WriteLine ("Parent:" + node.GetType ());
 
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                        Console.WriteLine ("Children:");
 
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                        foreach (var c in node.Children)
 
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                                Console.WriteLine (c.GetType () +" at:"+ c.StartLocation +"-"+ c.EndLocation + " Role: "+ c.Role);
 
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                        Console.WriteLine ("----");
 
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                }
 
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                void CheckPositionConsistency (AstNode node)
 
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                {
 
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                        string comment = "(" + node.GetType ().Name + " at " + node.StartLocation + " in " + currentFileName + ")";
 
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                        var pred = node.StartLocation <= node.EndLocation;
 
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                        if (!pred)
 
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                                PrintNode (node);
 
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                        Assert.IsTrue(pred, "StartLocation must be before EndLocation " + comment);
 
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                        var prevNodeEnd = node.StartLocation;
 
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                        var prevNode = node;
 
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                        for (AstNode child = node.FirstChild; child != null; child = child.NextSibling) {
 
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                                bool assertion = child.StartLocation >= prevNodeEnd;
 
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                                if (!assertion) {
 
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                                        PrintNode (prevNode);
 
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                                        PrintNode (node);
 
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                                }
 
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                                Assert.IsTrue(assertion, currentFileName + ": Child " + child.GetType () +" (" + child.StartLocation  + ")" +" must start after previous sibling " + prevNode.GetType () + "(" + prevNode.StartLocation + ")");
 
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                                CheckPositionConsistency(child);
 
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                                prevNodeEnd = child.EndLocation;
 
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                                prevNode = child;
 
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                        }
 
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                        Assert.IsTrue(prevNodeEnd <= node.EndLocation, "Last child must end before parent node ends " + comment);
 
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                }
 
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                void CheckMissingTokens(AstNode node)
 
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                {
 
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                        if (node is CSharpTokenNode) {
 
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                                Assert.IsNull(node.FirstChild, "Token nodes should not have children");
 
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                        } else {
 
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                                var prevNodeEnd = node.StartLocation;
 
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                                var prevNode = node;
 
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                                for (AstNode child = node.FirstChild; child != null; child = child.NextSibling) {
 
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                                        CheckWhitespace(prevNode, prevNodeEnd, child, child.StartLocation);
 
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                                        CheckMissingTokens(child);
 
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                                        prevNode = child;
 
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                                        prevNodeEnd = child.EndLocation;
 
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                                }
 
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                                CheckWhitespace(prevNode, prevNodeEnd, node, node.EndLocation);
 
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                        }
 
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                }
 
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                void CheckWhitespace(AstNode startNode, TextLocation whitespaceStart, AstNode endNode, TextLocation whitespaceEnd)
 
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                {
 
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                        if (whitespaceStart == whitespaceEnd || startNode == endNode)
 
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                                return;
 
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                        int start = currentDocument.GetOffset(whitespaceStart.Line, whitespaceStart.Column);
 
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                        int end = currentDocument.GetOffset(whitespaceEnd.Line, whitespaceEnd.Column);
 
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                        string text = currentDocument.GetText(start, end - start);
 
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                        bool assertion = string.IsNullOrWhiteSpace(text);
 
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                        if (!assertion) {
 
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                                if (startNode.Parent != endNode.Parent)
 
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                                        PrintNode (startNode.Parent);
 
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                                PrintNode (endNode.Parent);
 
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                        }
 
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                        Assert.IsTrue(assertion, "Expected whitespace between " + startNode.GetType () +":" + whitespaceStart + " and " + endNode.GetType () + ":" + whitespaceEnd
 
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                                      + ", but got '" + text + "' (in " + currentFileName + " parent:" + startNode.Parent.GetType () +")");
 
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                }
 
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                #endregion
 
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        }
 
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}