public void ExceptionParserTest()
{
try {
Exception x = new Exception("Default Blah Error");
x.Data.Add("DefaultUserKey1", "DefaultUserValue1");
throw x;
}
catch (Exception e) {
IExceptionParser parser = ExceptionParserFactory.Get(e);
this.TestRegularFields(parser, 1, "Exception", "Default Blah Error");
this.ValidateExtraInfo(parser, "DefaultUserKey1", "DefaultUserValue1");
}
}
public void XmlExceptionParserTest()
{
try {
XmlException x = new XmlException("Blah Error", null, 25, 100);
x.Data.Add("User Key 1", "User Value 1");
throw x;
}
catch (XmlException e) {
IExceptionParser parser = ExceptionParserFactory.Get(e);
// There are 3 for native Xml fields and 1 for user added above
this.TestRegularFields(parser, 4, "XmlException", "Blah Error Line 25, position 100.");
this.ValidateExtraInfo(parser, "User Key 1", "User Value 1");
this.ValidateExtraInfo(parser, "Line Number", "25");
this.ValidateExtraInfo(parser, "Line Position", "100");
this.ValidateExtraInfo(parser, "Source URI", null);
}
}
public void InnerExceptionParserTest()
{
try {
new ChkUtilsTestHelpers.Level1().DoIt();
}
catch (Exception e) {
IExceptionParser parser = ExceptionParserFactory.Get(e);
StringBuilder stackTrace = new StringBuilder();
int index = 1;
while (parser != null)
{
// Test for order
switch (index++)
{
case 1:
this.TestRegularFields(parser, 0, "Exception", "Level1 Exception - highest level exception");
break;
case 2:
this.TestRegularFields(parser, 0, "FormatException", "Level2 Format Exception - middle exception");
break;
case 3:
this.TestRegularFields(parser, 0, "Exception", "Level3 Exception - most inner exception");
break;
default:
Assert.Fail("There should only be three levels");
break;
}
// For show
stackTrace.AppendLine(String.Format("{0} : {1}", parser.Info.Name, parser.Info.Msg));
parser.ExtraInfo.ForEach(
item => stackTrace.AppendLine(String.Format("{0}={1}", item.Name, item.Value)));
parser.GetStackFrames(true).ForEach(
item => stackTrace.AppendLine(item));
parser = parser.InnerParser;
}
Console.WriteLine(stackTrace.ToString());
}
}
/// <summary>
/// Use the IExceptionParser to parse out all of the exception and
/// nested exceptions stack information to a multi line string
/// </summary>
/// <param name="parser">The parser to break down the exception</param>
/// <param name="target">The target string builder for the stack string</param>
public void FormatException(IExceptionParser parser, StringBuilder target)
{
// Get the first level parser for first level exception
//IExceptionParser parser = ExceptionParserFactory.Get(e);
while (parser != null) {
// Exception Name and message
target.AppendLine(String.Format("{0} : {1}", parser.Info.Name, parser.Info.Msg));
// Extra info items added one per line
parser.ExtraInfo.ForEach(
item => target.AppendLine(String.Format("{0}={1}", item.Name, item.Value)));
// Stack trace items one per line
parser.GetStackFrames(true).ForEach(
item => target.AppendLine(item));
// Recurse to inner parser for inner exception
parser = parser.InnerParser;
}
}
/// <summary>
/// Use the IExceptionParser to parse out all of the exception and
/// nested exceptions stack information to a multi line string
/// </summary>
/// <param name="parser">The parser to break down the exception</param>
/// <param name="target">The target string builder for the stack string</param>
public void FormatException(IExceptionParser parser, StringBuilder target)
{
// Get the first level parser for first level exception
//IExceptionParser parser = ExceptionParserFactory.Get(e);
while (parser != null)
{
// Exception Name and message
target.AppendLine(String.Format("{0} : {1}", parser.Info.Name, parser.Info.Msg));
// Extra info items added one per line
parser.ExtraInfo.ForEach(
item => target.AppendLine(String.Format("{0}={1}", item.Name, item.Value)));
// Stack trace items one per line
parser.GetStackFrames(true).ForEach(
item => target.AppendLine(item));
// Recurse to inner parser for inner exception
parser = parser.InnerParser;
}
}
/// <summary>
/// Build the parser for the inner exception if present
/// </summary>
/// <param name="e">The current level exception</param>
private void BuildNestedParsers(Exception e)
{
try {
if (e.InnerException != null) {
this.innerExceptionParser = ExceptionParserFactory.Get(e.InnerException);
}
}
catch (Exception ex) {
Debug.WriteLine(String.Format("ExceptionParserBase.BuildNestedParsers : Exception {0} :{1}", ex.GetType().Name, ex.Message));
}
}
private void ValidateExtraInfo(IExceptionParser parser, string key, string value)
{
ExceptionExtraInfo i = parser.ExtraInfo.Find((item) => item.Name == key);
Assert.IsNotNull(i);
Assert.AreEqual(value, i.Value);
}
private void TestRegularFields(IExceptionParser parser, int extraCount, string name, string msg)
{
Assert.IsNotNull(parser);
Assert.AreEqual(extraCount, parser.ExtraInfo.Count, "The count of extra info items is off");
Assert.AreEqual(name, parser.Info.Name);
Assert.AreEqual(msg, parser.Info.Msg);
}
