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/*
* [The "BSD licence"]
* Copyright (c) 2005-2008 Terence Parr
* All rights reserved.
*
* Conversion to C#:
* Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
namespace Antlr3.Runtime.Test
{
using System;
using Antlr.Runtime;
using Antlr.Runtime.Tree;
using Microsoft.VisualStudio.TestTools.UnitTesting;
[TestClass]
public class TestDotTreeGenerator
{
[TestMethod]
public void TestCreateDot()
{
ANTLRStringStream input = new ANTLRStringStream( "3 * x" );
SimpleExpressionLexer lexer = new SimpleExpressionLexer( input );
CommonTokenStream tokens = new CommonTokenStream( lexer );
SimpleExpressionParser parser = new SimpleExpressionParser( tokens );
var result = parser.expression();
var tree = result.Tree;
var adaptor = parser.TreeAdaptor;
DotTreeGenerator gen = new DotTreeGenerator();
string output = gen.ToDot( tree, adaptor );
string newline = Environment.NewLine;
string expected =
@"digraph {" + newline
+ newline
+ @" ordering=out;" + newline
+ @" ranksep=.4;" + newline
+ @" bgcolor=""lightgrey""; node [shape=box, fixedsize=false, fontsize=12, fontname=""Helvetica-bold"", fontcolor=""blue""" + newline
+ @" width=.25, height=.25, color=""black"", fillcolor=""white"", style=""filled, solid, bold""];" + newline
+ @" edge [arrowsize=.5, color=""black"", style=""bold""]" + newline
+ newline
+ @" n0 [label=""""];" + newline
+ @" n1 [label=""*""];" + newline
+ @" n1 [label=""*""];" + newline
+ @" n2 [label=""3""];" + newline
+ @" n3 [label=""x""];" + newline
+ @" n4 [label=""""];" + newline
+ newline
+ @" n0 -> n1 // """" -> ""*""" + newline
+ @" n1 -> n2 // ""*"" -> ""3""" + newline
+ @" n1 -> n3 // ""*"" -> ""x""" + newline
+ @" n0 -> n4 // """" -> """"" + newline
+ newline
+ @"}" + newline
+ @"";
Assert.AreEqual( expected, output );
}
}
}
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