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Table of Contents:

Definition and Overview

1. The Test Suite Framework Standard

2. Conformance Testing

3. PICS/PIXIT

4. Tree and Tabular Combined Notation—The Language

5. Suite Overview Part

6. Declarations Part

7. Constraints Part

8. Dynamic Part

9. Test Component Explanation

10. The Behavior Table

11. TTCN Additions and Modules

12. Graphical and Textual Notations and Application Areas

Self-Test

Glossary

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• test event—the smallest, indivisible unit of a test suite. Typically, it corresponds to sending or receiving a message and the operations for manipulating timers.
• test step—a grouping of test events, similar to a subroutine or procedure in other programming languages.
• test case—the fundamental building block in a test suite. A test case tests a particular feature or function in the implementation under test (IUT). A test case has an identified test purpose and it assigns a verdict that depends on the outcome of the test case.
• test group—a grouping of test cases. It might, for example, be convenient to group all test cases concerning connection establishment and to put all test cases concerning transport into a separate test group.
• test suite—the highest level, encompassing all test components and serving as the root of the tree. A test suite can range from a large number of test groups and test cases to a single test event contained in a test case.

The tests are built up by a behavior tree; this is the origin of the "tree" in tree and tabular combined notation (see Figure 14).

Figure 14. An Event Tree and the Corresponding Execution Order