TC-Lite uses attributes to identify tests, control various aspects of how they are run, choose which tests should be run and to provide general information about each test. The following attributes are currently supported in the code.
| CategoryAttribute | Allows tagging tests with a category. |
| CombinatorialAttribute | |
| DefaultToleranceAttribute | |
| DescriptionAttribute | |
| IgnoreAttribute | Indicates that a test should not be run and specifies the reason. |
| PropertyAttribute | |
| RandomAttribute | |
| RangeAttribute | |
| TestCaseAttribute | Identifies a test method and optionally provides a set of arguments. |
| TestCaseDataAttribute | Identifies a test method together with a static source from which arguments are retrieved. |
| TestCaseFactoryAttribute | Identifies a test method together with a test case factory to provide arguments. Use of a factory provides the greatest level of control in generating arguments dynamically. |
| TestFixtureAttribute | |
| TestFixtureSourceAttribute | |
| ValuesAttribute | |
| ValueSourceAttribute |