Apparatus for storing variable values to provide context for test results that are to be formatted

Apparatus, comprising:

• a data populator to i) receive an ordered sequence of events corresponding to execution of a plurality of tests on at least one device under test (DUT), ii) create a plurality of data objects, at least some of which correspond to logical groupings of test results that are implied by ones of the events, iii) relate ones of the data objects to others of the data objects in a hierarchical tree structure, iv) relate data corresponding to ones of the events, including the test results, to ones of the data objects in the hierarchical tree structure, v) store variable values that are related to ones of the data objects in a plurality of variable lists that correspond to the ones of the data objects, and vi) associate each of the variable lists with a corresponding one of the data objects;
• a number of data formatters to retrieve and format test results associated with the hierarchical tree structure, the test results being retrieved in response to notifications received by the data formatter(s);
• and
• a notification manager to receive indications of events from the data populator and provide notifications of ones of the events to one or more of the data formatters.