1 // ***********************************************************************
2 // Copyright (c) 2007 Charlie Poole
4 // Permission is hereby granted, free of charge, to any person obtaining
5 // a copy of this software and associated documentation files (the
6 // "Software"), to deal in the Software without restriction, including
7 // without limitation the rights to use, copy, modify, merge, publish,
8 // distribute, sublicense, and/or sell copies of the Software, and to
9 // permit persons to whom the Software is furnished to do so, subject to
10 // the following conditions:
12 // The above copyright notice and this permission notice shall be
13 // included in all copies or substantial portions of the Software.
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 // ***********************************************************************
25 #define NUNIT_FRAMEWORK
31 using System.Text.RegularExpressions;
33 namespace NUnit.Framework.Internal
36 /// StackFilter class is used to remove internal NUnit
37 /// entries from a stack trace so that the resulting
38 /// trace provides better information about the test.
40 public static class StackFilter
42 private static readonly Regex assertOrAssumeRegex = new Regex(
43 @" NUnit\.Framework\.Ass(ert|ume)\.");
46 /// Filters a raw stack trace and returns the result.
48 /// <param name="rawTrace">The original stack trace</param>
49 /// <returns>A filtered stack trace</returns>
50 public static string Filter(string rawTrace)
52 if (rawTrace == null) return null;
54 StringReader sr = new StringReader(rawTrace);
55 StringWriter sw = new StringWriter();
60 // Skip past any Assert or Assume lines
61 while ((line = sr.ReadLine()) != null && assertOrAssumeRegex.IsMatch(line))
65 // Copy lines down to the line that invoked the failing method.
66 // This is actually only needed for the compact framework, but
67 // we do it on all platforms for simplicity. Desktop platforms
68 // won't have any System.Reflection lines.
69 while (line != null && line.IndexOf(" System.Reflection.") < 0)
71 sw.WriteLine(line.Trim());
79 String ret = sw.ToString();