SIST ES 203 790 V1.2.1:2020

SLOVENSKI STANDARD
SIST ES 203 790 V1.2.1:2020
01-julij-2020

Metode za preskušanje in specificiranje (MTS) - 3. različica zapisa preskušanja in

Methods for Testing and Specification (MTS) - The Testing and Test Control Notation

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 5

1 Scope ........................................................................................................................................................ 6

2 References ................................................................................................................................................ 6

2.1 Normative references ......................................................................................................................................... 6

2.2 Informative references ........................................................................................................................................ 6

3 Definition of terms, symbols and abbreviations ....................................................................................... 7

3.1 Terms .................................................................................................................................................................. 7

3.2 Symbols .............................................................................................................................................................. 7

3.3 Abbreviations ..................................................................................................................................................... 7

4 Package conformance and compatibility .................................................................................................. 7

5 Package Concepts for the Core Language ................................................................................................ 8

5.0 General ............................................................................................................................................................... 8

5.1 Classes and Objects ............................................................................................................................................ 8

5.1.0 General .......................................................................................................................................................... 8

5.1.1 Classes .......................................................................................................................................................... 8

5.1.1.0 General .................................................................................................................................................... 8

5.1.1.1 Scope rules .............................................................................................................................................. 9

5.1.1.2 Abstract classes ....................................................................................................................................... 9

5.1.1.3 External classes ..................................................................................................................................... 10

5.1.1.4 Final Classes ......................................................................................................................................... 10

5.1.1.5 Constructors .......................................................................................................................................... 11

5.1.1.6 Constructor invocation .......................................................................................................................... 12

5.1.1.7 Destructors ............................................................................................................................................ 13

5.1.1.8 Methods ................................................................................................................................................. 13

5.1.1.9 Method invocation ................................................................................................................................ 14

5.1.1.10 Visibility ............................................................................................................................................... 14

5.1.1.11 Built-in classes ...................................................................................................................................... 14

5.1.1.12 Nested classes ....................................................................................................................................... 14

5.1.2 Objects ........................................................................................................................................................ 15

5.1.2.0 General .................................................................................................................................................. 15

5.1.2.1 Ownership ............................................................................................................................................. 15

5.1.2.2 Object References ................................................................................................................................. 15

5.1.2.3 Null reference ........................................................................................................................................ 16

5.1.2.4 Select class-statement............................................................................................................................ 16

5.1.2.5 Of-operator (Dynamic Class Discrimination) ....................................................................................... 16

5.1.2.6 Casting .................................................................................................................................................. 17

5.2 Exception handling ........................................................................................................................................... 17

5.2.0 General ........................................................................................................................................................ 17

5.2.1 Extension to ETSI ES 201 873-1, clause 16.1.0 (Functions) ...................................................................... 17

5.2.2 Extension to ETSI ES 201 873-1, clause 16.1.3 (External Functions) ....................................................... 18

5.2.3 Extension to ETSI ES 201 873-1, clause 16.1.4 (Invoking functions from specific places)....................... 18

5.2.4 Extension to ETSI ES 201 873-1, clause 16.2 (Altsteps)............................................................................ 18

5.2.5 Extension to ETSI ES 201 873-1, clause 16.3 (Test cases) ........................................................................ 19

5.2.6 Extension to ETSI ES 201 873-1, clause 18 (Overview of program statements and operations) ............... 19

5.2.7 Extension to ETSI ES 201 873-1, clause 19 (Basic program statements) .................................................. 21

6 TRI Extensions for the Package ............................................................................................................. 24

6.1 Extensions to clause 5.3 of ETSI ES 201 873-5 Data interface........................................................................ 24

6.2 Extensions to clause 5.6.3 of ETSI ES 201 873-5 Miscellaneous operations .................................................. 25

6.3 Extensions to clause 6 of ETSI ES 201 873-5 Java language mapping ........................................................ 26

6.4 Extensions to clause 7 of ETSI ES 201 873-5 ANSI C language mapping ...................................................... 28

6.5 Extensions to clause 8 of ETSI ES 201 873-5 C++ language mapping............................................................ 28

6.6 Extensions to clause 9 of ETSI ES 201 873-5 C# language mapping .............................................................. 29

7 TCI Extensions for the Package ............................................................................................................. 30

7.1 Extensions to clause 7.2.2.1 of ETSI ES 201 873-6 Abstract TTCN-3 data types and values ......................... 30

7.2 Extensions to clause 7.2.2 of ETSI ES 201 873-6 Abstract TTCN-3 data types and values ............................ 30

7.3 Extensions to clause 7.2.2.2.0 of ETSI ES 201 873-6 Basic rules ................................................................... 31

7.4 Extensions to clause 7.2.2.2 of ETSI ES 201 873-6 Abstract TTCN-3 values ................................................. 32

7.5 Extensions to clause 7.3.4.1 of ETSI ES 201 873-6 Abstract TCI-TL provided .............................................. 33

7.6 Extensions to clause 8 of ETSI ES 201 873-6 Java language mapping ........................................................ 35

7.7 Extensions to clause 9 of ETSI ES 201 873-6 ANSI C language mapping ...................................................... 37

7.8 Extensions to clause 10 of ETSI ES 201 873-6 C++ language mapping .......................................................... 39

7.9 Extensions to clause 11 of ETSI ES 201 873-6 W3C XML mapping .............................................................. 41

7.10 Extensions to clause 12 of ETSI ES 201 873-6 C# language mapping ............................................................ 42

8 XTRI Extensions for the Package (optional) .......................................................................................... 44

8.1 Changes to clause 5.6.3 of ETSI ES 201 873-5 Miscellaneous operations ...................................................... 44

8.2 Extensions to clause 6 of ETSI ES 201 873-5 Java language mapping ........................................................ 46

8.3 Extensions to clause 7 of ETSI ES 201 873-5 ANSI C language mapping ...................................................... 46

8.4 Extensions to clause 8 of ETSI ES 201 873-5 C++ language mapping............................................................ 47

8.5 Extensions to clause 9 of ETSI ES 201 873-5 C# language mapping .............................................................. 47

Annex A (normative): BNF and static semantics .............................................................................. 48

A.1 Extensions to TTCN-3 terminals ............................................................................................................ 48

A.2 Modified TTCN-3 syntax BNF productions .......................................................................................... 49

A.3 Additional TTCN-3 syntax BNF productions ........................................................................................ 50

Annex B (normative): Standard Collections...................................................................................... 52

B.1 The TTCN3_standard_collections module............................................................................................. 52

B.1.0 General ............................................................................................................................................................. 52

B.1.1 The Collection class ......................................................................................................................................... 53

B.1.2 The List class .................................................................................................................................................... 53

B.1.3 The LinkedList class ........................................................................................................................................ 53

B.1.4 The Queue class ............................................................................................................................................... 54

B.1.5 The PriorityQueue class ................................................................................................................................... 54

B.1.6 The Stack class ................................................................................................................................................. 55

B.1.7 The RingBuffer class ........................................................................................................................................ 55

B.1.8 The HashMap class .......................................................................................................................................... 56

B.1.9 The Set class ..................................................................................................................................................... 57

B.1.10 The Exception class .......................................................................................................................................... 57

B.1.11 The Iterator class .............................................................................................................................................. 57

History .............................................................................................................................................................. 58

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This ETSI Standard (ES) has been produced by ETSI Technical Committee Methods for Testing and Specification

The use of underline (additional text) and strike through (deleted text) highlights the differences between base

The present document relates to the multi-part standard ETSI ES 201 873 covering the Testing and Test Control

In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and

"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

The present document defines the support for object-oriented features in TTCN-3. TTCN-3 can be used for the

specification of all types of reactive system tests over a variety of communication ports. Typical areas of application are

protocol testing (including mobile and Internet protocols), service testing (including supplementary services), module

testing, testing of OMG CORBA based platforms, APIs, etc. TTCN-3 is not restricted to conformance testing and can

be used for many other kinds of testing including interoperability, robustness, regression, system and integration testing.

The specification of test suites for physical layer protocols is outside the scope of the present document.

TTCN-3 packages are intended to define additional TTCN-3 concepts, which are not mandatory as concepts in the

TTCN-3 core language, but which are optional as part of a package which is suited for dedicated applications and/or

While the design of TTCN-3 package has taken into account the consistency of a combined usage of the core language

with a number of packages, the concrete usages of and guidelines for this package in combination with other packages

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

Referenced documents which are not found to be publicly available in the expected location might be found at

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

The following referenced documents are necessary for the application of the present document.

[1] ETSI ES 201 873-1: "Methods for Testing and Specification (MTS); The Testing and Test Control

[2] ETSI ES 201 873-4: "Methods for Testing and Specification (MTS); The Testing and Test Control

[3] ETSI ES 201 873-5: "Methods for Testing and Specification (MTS); The Testing and Test Control

[4] ETSI ES 201 873-6: "Methods for Testing and Specification (MTS); The Testing and Test Control

References are either specific (identified by date of publication and/or edition number or version number) or

non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

The following referenced documents are not necessary for the application of the present document but they assist the

[i.1] ETSI ES 201 873-7: "Methods for Testing and Specification (MTS); The Testing and Test Control

[i.2] ETSI ES 201 873-8: "Methods for Testing and Specification (MTS); The Testing and Test Control

[i.3] ETSI ES 201 873-9: "Methods for Testing and Specification (MTS); The Testing and Test Control

[i.4] ETSI ES 201 873-10: "Methods for Testing and Specification (MTS); The Testing and Test

Control Notation version 3; Part 10: TTCN-3 Documentation Comment Specification".

For the purposes of the present document, the terms given in ETSI ES 201 873-1 [1], ETSI ES 201 873-4 [2],

For the purposes of the present document, the abbreviations given in ETSI ES 201 873-1 [1], ETSI ES 201 873-4 [2],

"TTCN-3:2018 Object-Oriented features" - to be used with modules complying with the present document.

For an implementation claiming to conform to this package version, all features specified in the present document shall

be implemented consistently with the requirements given in the present document and in ETSI ES 201 873-1 [1] and

If later versions of those parts are available and should be used instead, the compatibility to the package presented in the

This package defines objec-oriented features for TTCN-3, i.e. it extends the TTCN-3 core language (ETSI

ES 201 873-1 [1]) with well-known concepts from object-oriented programming and modelling languages. This

• classes (i.e. class definition, scope rules, abstract and external classes, refinement, constructors, destructors,

• objects (i.e. ownership, object references, select class-statement, dynamic class discrimitation and casting);

• exception handling (i.e. ability to define exception handling for functions, external functions, altsteps and test

This clause introduces the concepts of class types and their values, called objects as well as the operations allowed to be

A class is a type where the values are called objects. A class can declare fields (variables, constants, templates, timers,

classes) and methods as its members. Each member name inside the class shall be unique, there is no overloading. The

private and protected fields and methods are only accessible by the methods of the class, while the public members of

the class can be accessed also from behaviour not defined in the class. The private members of the class can be accessed

directly only by members of the class itself. All members which are neither private nor public are protected and can also

A class can extend another class. The extended class is called the superclass, while the extending class is called the

subclass. The resulting type of a class definition is the set of object instances of the class itself and all instances of its

direct or indirect subclasses. A subclass is a subtype of its direct and indirect superclasses and its object instances are

type compatible with them. If a class does not explicitly extend another class type, it implicitly extends the root class

type object. Thus, all classes are directly or indirectly extensions of the object class.

A class can have optional runs on, mtc and system clauses. This restricts the type of component context that can create

objects of that class and all methods of this class. If a class does not have one of these clauses, it inherits it from its

superclass, if the superclass has one. If the superclass has or inherits a runs on, mtc or system clause, the subclass may

declare each of these clauses with a more specific component type than the one inherited. The function members of

classes shall not have runs on, system or mtc classes but inherit them from their surrounding class or its superclasses.

b) Passing of object references to the create operation of a component type or a function started on another

c) No subtyping definition is allowed for class types via the normal subtype definition.

d) No local/global constants or module parameters of class type or containing class type fields or elements are

g) The runs on type of a class shall be runs on compatible with the runs on type of the behaviour creating a class.

h) The runs on type of a class shall be runs on compatible with the runs on type of the superclass.

i) The mtc and system type of a class shall be mtc and system compatible with the mtc and system types of the

Class constitutes a scope unit. For the uniqueness of identifiers, the rules specified in clause 5.2.2 of ETSI

a) Identifiers from the higher scope can be reused for member declarations. A reference to a reused identifier

without a prefix occurring inside a class scope shall be resolved as a reference to the class member. In order to