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Getting Started with DTM Logger

Whether your tests are coded in C, C++, COM, or .NET, the basic process of using DTM Logger in your code is essentially the same. To add logging to your test program, include these elements:

  • Initialize logging by creating a log device, which sets up your desired outputs. For more information about creating a log device, see Initializing a Log Device.
  • Manage test cases by marking the start and end of each test case in your code. A test case is a set of traces that are grouped by a defined context. For more information about managing your test cases, see Managing a Test Case.
  • Trace application errors during the test run by adding traces to your test cases. For more information about performing a trace, see Performing a Trace.
  • Clean up after the test run.
  • Post-process the log files by using XML transformation templates. For more information about post-processing log files, see Post-Processing Log Files.

Logging engine

There are three versions of the logging engine:

  • WttLog.dll for C/C++. This DLL has minimal dependencies.
  • WttLogCM.dll for COM and scripting.
  • Microsoft.DistributedAutomation.log.dll for .NET.

If you want to statically link to the target DLL during compilation, use the WttLog.lib library files for C/C++.

Scripting the Logger

If you want to access the logging engine through a script, you must:

  1. Register the COM version of the logging engine (WttLogCM.dll).
  2. Use the WttLogger object as you would use any Microsoft ActiveX object.

This section includes:

Initializing a Log Device

Managing a Test Case

Performing a Trace

Post-Processing Log Files

See Also

Logging in DTM, Logger Reference

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Built on December 10, 2009