1
Scope
2 References
3 Definitions
and abbreviations
3.1
Definitions
3.2
Abbreviations and
acronyms
4 Introduction
4.1
The core language and presentation formats
4.2
Unanimity of the
specification
4.3
Conformance
5 Basic
language elements
5.1
Identifiers and keywords
5.2
Scope
rules
5.3
Ordering of language
elements
5.4
Parameterization
6 Types
and values
6.1
Basic types and
values
6.2
Structured types and values
6.3
Type compatibility
7 Expressions
7.1
Operators
8 Modules
8.1
Definition of a
module
8.2
Module definitions
part
8.3
Module control
part
9 Port
types, component types and test
configurations
9.1
Communication port types
9.2
Component types
9.3
Reuse of component types
9.4
Test system
interface
9.5
Component
references
9.6
Addressing entities inside the SUT
10 Declaring
constants
10.1
External constants
11 Declaring
variables
11.1
Value variables
11.2
Template variables
12 Declaring
timers
13 Declaring
messages
14 Declaring
procedure signatures
15 Declaring
templates
15.1
Declaring message
templates
15.2
Declaring signature
templates
15.3
Global and local templates
15.4
In-line templates
15.5
Modified
templates
15.6
Referencing elements of templates or template
fields
15.7
Template matching
mechanisms
15.8
Match Operation
15.9
Valueof Operation
16 Functions,
altsteps and testcases
16.1
Functions
16.2
Altsteps
16.3
Test cases
17 Void
18 Overview of
program statements and operations
19 Basic
program
statements
19.1
Assignments
19.2
The If-else
statement
19.3
The Select Case statement
19.4
The For statement
19.5
The While
statement
19.6
The Do-while statement
19.7
The Label
statement
19.8
The Goto
statement
19.9
The Stop execution
statement
19.10
The Return
statement
19.11
The Log
statement
20 Statement
and operations for alternative
behaviours
20.1
The snapshot mechanism
20.2
The Alt statement
20.3
The Repeat
statement
20.4
The Interleave statement
20.5
Default Handling
21 Configuration
operations
21.1
Connection
operations
21.2
Test component
operations
Page
22 Communication
operations
22.1
The communication mechanisms
22.2
Message-based
communication
22.3
Procedure-based communication
22.4
The Check
operation
22.5
Controlling communication ports
22.6
Use of any and all with
ports
23 Timer
operations
23.1
The timer
mechanism
23.2
The Start timer operation
23.3
The Stop timer operation
23.4
The Read timer operation
23.5
The Running timer
operation
23.6
The Timeout
operation
23.7
Summary of use of any and all with timers
24 Test
verdict operations
24.1
The Verdict mechanism
24.2
The Setverdict operation
24.3
The Getverdict operation
25 External
actions
26 Module
control
26.1
The Execute
statement
26.2
The Control part
27 Specifying
attributes
27.1
The Attribute mechanism
27.2
The With statement
27.3
Display attributes
27.4
Encoding
attributes
27.5
Variant attributes
27.6
Extension
attributes
Annex A – BNF and static semantics
A.1
TTCN‑3 BNF
A.1.6 TTCN‑3 syntax BNF productions
Annex B – Matching incoming values
B.1
Template matching
mechanisms
Annex C – Pre-defined TTCN‑3 functions
C.0
General exception handling procedures
C.1
Integer to
character
C.2
Integer to universal
character
C.3
Integer to bitstring
C.4
Integer to hexstring
C.5
Integer to
octetstring
C.6
Integer to
charstring
C.7 Integer to float
C.8 Float to integer
C.9
Character to
integer
C.10
Character string to
octetstring
C.11
Universal character to integer
C.12
Bitstring to integer
C.13 Bitstring to
hexstring
C.14 Bitstring to octetstring
C.15 Bitstring to charstring
C.16
Hexstring to
integer
C.17 Hexstring to bitstring
C.18 Hexstring to octetstring
C.19 Hexstring to charstring
C.20
Octetstring to
integer
C.21 Octetstring to bitstring
C.22 Octetstring to hexstring
C.23 Octetstring to character string
C.24 Octetstring to character string, version II
C.25
Charstring to
integer
C.26
Character string to
octetstring
C.27
Character string to float
C.28
Length of string
type
C.29
Number of elements in a structured value
C.30
Number of elements in a structured
type
C.31
The IsPresent
function
C.32
The IsChosen
function
C.33
The Regexp
function
C.34
The Substring
function
C.35
The Replace
function
C.36 The random number generator function
Annex D – Library of
useful types
D.1
Limitations
D.2 Useful TTCN‑3 types
Page
Annex E – Operations on TTCN‑3 active
objects
E.1
Test components
E.2
Timers
E.3
Ports
Annex F – Deprecated language
features
F.1
Group style definition of module
parameters
F.2
Recursive import
F.3
Using all in port type definitions
Bibliography