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Component-based Simulation Framework for Testing of Software Components. Tomáš Potužák Department of Computer Science and Engineering Faculty of Applied Sciences University of West Bohemia, Pilsen, Czech Republic. Presentation Content. Introduction and Motivation

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Presentation Transcript
slide1

Component-based Simulation Framework for Testing of Software Components

Tomáš Potužák

Department of Computer Science and Engineering

Faculty of Applied Sciences

University of West Bohemia, Pilsen, Czech Republic

slide2

Presentation Content

  • Introduction and Motivation
  • Component Models and Frameworks
  • Simulation Framework Description
    • Features
    • Components Interactions
    • Restrictions and Issues
  • Live Demonstration of the Simulation Framework
  • Future Work
introduction and motivation
Introduction and Motivation

Software component approach

System constructed from set of individual components potentially created by various parties

Each component considered as black-box with no externally observable state

Testing of components

Often tested for extra-functional properties and quality of services (functionality according specification often considered implied)

Often utilization of potentially incorrect models of components

Simulation framework for testing of real components

component models and frameworks
Component Models and Frameworks

Component model

Specifies the look, behavior, and interaction of the components

Component framework

Implementation of an specific component model

Not to be confused with simulation framework for testing

OSGi component framework

Widely used in many fields of industry

Spring DM extension of the OSGi

Simplification of the development process

simulation framework for component testing
Simulation Framework for Component Testing

A simulation framework designed using SpringDM for testing of real components

No need for creation of models of the tested components

Testing of OSGi components

Framework also constructed from components

Modularity of the framework

Easy to change the features of the simulation

Implementation of the simulation framework

Tomáš Kabíček and Matěj Prokop as two master thesis

framework types of components
Framework – Types of Components

Components of the framework

Components necessary for functionality of the framework

Real tested components

Components to be tested in the simulation framework

Simulated components

Components for providing of the services required by the real tested components

Intermediate components

Components for mediating of the services between two real tested components

framework features i
Framework – Features I

Possible to test one or more real components in simulation environment

Services required by the real tested components provided by other real components or simulated components

All services invocations managed by the simulation framework using event calendar without necessity of deprecated methods

Depiction of components

Three variously detailed variants, automated components layout

Depiction of the simulation run by components highlighting and depiction of the events in the calendar

framework features ii
Framework – Features II

Logging of all events of the simulation run into a text file

Logged all events, similar to the depiction of the calendar, but more detailed

Simulation scenarios described in XML files

Description of the components and their types

Description of external events in the simulation run

Description of the behavior of the simulated components (in separate XML files)

framework restrictions and issues
Framework – Restrictions and Issues

Restriction

Only for OSGi/SpringDM components

Issues

No collections of statistics/results aside the log

Only one simple case study implemented, many aspects not tested

No handling of system time calls, remote services etc.

framework live demonstration
Framework – Live Demonstration

Demonstration of the simple case study directly in the simulation framework

future work
Future Work

Implementation of a component for statistics collections

As a master thesis of a student

Testing of two more advanced case studies

File manager

Traffic crossroad

Solving of issues

Handling of system time calls and remote connections

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