| Name | Description |
|---|---|
| CountdownEvent | A simplified implementation of .NET 4 CountdownEvent for use in earlier versions of .NET. Only the methods used by NUnit are implemented. |
| SimpleWorkItem | A SimpleWorkItem represents a single test case and is marked as completed immediately upon execution. This class is also used for skipped or ignored test suites. |
| WorkItem | A WorkItem may be an individual test case, a fixture or a higher level grouping of tests. All WorkItems inherit from the abstract WorkItem class, which uses the template pattern to allow derived classes to perform work in whatever way is needed. |