Introduction to TTCN-3 (eBook)

Colin Willcock is a Research Manager at Nokia Research center. He is currently working on testing methodology, tool development and standardization. He is part of the core ETSI team which developed the TTCN-3 language. As well as extensive participation at ETSI, ITU-T and 3GPP standardization, he has worked on a part-time basis at ETSI for the last 6 years on specialist task forces. He has also in the past been the raporteur for the ITU-T Z.105 standard (use of SDL with ASN.1) and a member of the joint ISO/ITU-T ASN.1 experts group.

List of Figures.

List of Tables.

About the Authors.

Foreword.

Preface.

Acknowledgements.

Abbreviations and Acronyms.

1 Introduction.

1.1 TTCN-3 as a Language.

1.2 The Development of TTCN-3.

1.3 Summary.

2 TTCN-3 by Example.

2.1 TTCN-3 Test Suite.

2.2 TTCN-3 Test Systems.

2.3 Summary.

3 Basic TTCN-3.

3.1 Basic Constructs.

3.2 Basic Statements.

3.3 Summary.

4 Single Component TTCN-3.

4.1 Ports.

4.2 Components.

4.3 Test Cases.

4.4 Templates.

4.5 Message-Based Communication.

4.6 Timers.

4.7 Alt Statement.

4.8 Altsteps.

4.9 Default Altsteps.

4.10 Functions.

4.11 Summary.

5 Multi Component TTCN-3.

5.1 Multi Component Test Case Example.

5.2 Test Components.

5.3 Mappings and Connections.

5.4 Component Type Extension.

5.5 Miscellaneous Port Operations.

5.6 SUT Addresses.

5.7 Putting the Pieces Together.

5.8 Summary.

6 Procedure-Based Communication.

6.1 Procedure- versus Message-Based Communication.

6.2 An Example - the Directory Service.

6.3 Procedure-Based Communication in TTCN-3.

6.4 Communication Operations.

6.5 Procedure-Based Communication on the Client Side.

6.6 Procedure-Based Communication on the Server Side.

6.7 Addressing.

6.8 Summary.

7 Modular TTCN-3.

7.1 Modules.

7.2 Group Definitions.

7.3 Importing.

7.4 Module Parameters.

7.5 Attributes.

7.6 Summary.

8 TTCN-3 Data Types.

8.1 The Session Initiation Protocol.

8.2 Subtyping.

8.3 TTCN-3 Built-in Types.

8.4 User-Defined Types.

8.5 Nested Type Definitions.

8.6 Encoding and Decoding of Data.

8.7 Summary.

9 Advanced Type Topics.

9.1 Type Compatibility.

9.2 The Anytype Type.

9.3 The Address Type.

9.4 Recursive Type Definitions.

9.5 Foreign Type Systems.

9.6 Summary.

10 Templates.

10.1 A First Look at TTCN-3 Templates.

10.2 The TTCN-3 Match Operation.

10.3 Template Definition for One Specific Value.

10.4 Template Definitions with Matching Expressions.

10.5 Template Definitions for Signatures.

10.6 Assignment, Access of Templates and the Pre-Defined Functions Isvalue and Valueof.

10.7 Summary.

11 Advanced Templates.

11.1 Template Definitions for Complex Type Structures.

11.2 Template References.

11.3 Template Parameterisation.

11.4 Selective Modification of Other Templates.

11.5 Explicit versus Implicit Template Definitions.

11.6 Restricting Template Usage.

11.7 Template Variables and Computing Functions.

11.8 Structuring of Template Definitions for Complex Types.

11.9 Summary.

12 Extension Packages.

12.1 Static Test Configurations.

12.2 Real-Time in TTCN-3.

12.3 Type Parameterisation.

12.4 Behaviour Types.

12.5 Summary.

13 TTCN-3 Test Systems in Practice.

13.1 The Anatomy of a TTCN-3 Test System.

13.2 Test System Execution of a Simple Test Case.

13.3 More about the SUT Adapter.

13.4 More about the Platform Adapter.

13.5 More about External Codecs.

13.6 Documentation Comments.

13.7 Summary.

14 Frameworks.

14.1 Frameworks and Test Suites.

14.2 TTCN-3 Libraries.

14.3 Design of Frameworks.

14.4 Example: the IPv6 Testing Framework.

14.5 Summary.

15 Advice and Examples.

15.1 TTCN-3 Style Guide.

15.2 Suggestions for Modularisation.

15.3 Template Specification for Complex Message Definitions.

15.4 Useful Behaviour.

15.5 Test Component Synchronisation.

16 LTE Testing with TTCN-3.

16.1 LTE Description.

16.2 LTE Test Suite.

16.3 Summary.

17 Closing Thoughts and Future Directions.

References.

Index.