TDD who pays? Test Driven Development in embedded java projects an unusual insight in usage scenarios and budgets

Transcription

1 TDD who pays? Test Driven Development in embedded java projects an unusual insight in usage scenarios and budgets Christine Mitterbauer

2 About us MicroDoc Founded in 1991, privately owned Located in Munich Germany Cross industry expertise Financial Airline Automation Automotive Logistics IT Leading european business partner for IBM s embedded Java platform Customized platform ports Distribution and licensing for the IBM embedded product range. Active member of Eclipse Foundation OSGi Usergroup Germany Open Source Business Foundation

3 MicroDoc Offerings - Embedded Services Platform ports and customizing for WECE/WEME JVMs & Lotus Expeditor Development of OSGi and ercp applications, tooling and frameworks, Consulting, Coaching, Quality Assurance Products IBM WebSphere Everyplace Runtimes MicroDoc External Device Framework Volume Licensing WebSphere Everyplace Micro/Custom Environment (WECE/WEME) & Lotus Expeditor

4 Some of our partners and projects

5 First of all Why TDD? SW-development without testing is like rock climbing without rope and piton Tests ensure current functionality on enhancement and refactoring Refactoring extends productive life time Code is often not testable if it is not developed with testing in mind

6 TDD - Methodology Quality-conscious programming technique Test-First-Development + Refactoring Each functional program change is motivated by a distinct test Implementation focus on testable software (design for testability) Simple functional tests (unit tests) Scenario based integration tests (acceptance tests) On all target platforms with appropriate simulations

7 TDD - SetUp Test-Adapter Test-Engine Your Software Product Test-Suites Simulations Test and Verify Test-Driven- Development

8 Test-SetUp: FleetBoard Test-Engine Test-Suites SUT = System under Test Win32 WinCE 6.0 WM 2003 WM50 WM50 + GPS/GSM

9 Fleetboard Solution Forwarding agent/haulier GSM or GPRS (Mobile GPS satellite communication) transmission GPS positioning GPS positioning Internet FleetBoard Service Centre GPRS transmission internet FleetBoard Hardware Truck FleetBoard Service Center Logistics software Driver working place

10 DEMO - TDD

11 Technical insight OSGi framework (Eclipse Equinox) Additional, optional bundles with testing software Exchange real components with simulated implementations efitnesse FitNesse Testing framework for embedded Runnable in simulation & on target platform Executable test documents Continuous integration Nightly builds automatically deployed on all target platforms Continuous testing

12 efitnesse architecture OSGi container Webserver hosting Wiki HTTP FitServlet HTTP Service Test-Suiten Testing Framework (Fit) Application

13 But.

14 But. TDD demands more ressources during development Negative impact on implementation costs and amount of features in first project milestones Positive effects often not visible until later in the project Poorly tested software is faster in production, but in general produces higher maintenance costs Savings during maintenance phase are mostly not credited to the development budget

15 And now?

16 And now? Brainstorming for further usage potentials Minor enhancements -> great impact i.e. usage of test setups for analyzing purposes i.e. usage of test setups to configure the system Inspection of development tools like simulations, test recorder for reuse potential Virtual device with simulations for Communication channels 3rd party systems like GPS, scanner, navigation Device functionality, hardkey pad

17 Usage potential - Support Test-Adapter Test-Engine Your Software Product Test-Suites Simulations Analyze and SetUp Tools for Maintenance

18 Usage potential - Support Analyze system state Setup, configure and replay dedicated test szenarios Get system states from production and replay them in simulation Early discussion base for product configuration / customization

19 DEMO Support

20 Technical insight Special software build for support Testing bundles included Simulations configured efitnesse enhanced Support for Analyze & Setup Runs Special Test-Wiki for Test & Support department

21 Usage potential Marketing/Sales Test-Adapter Test-Engine Your Software Product Test-Suites Simulations Demonstrate Sales und Marketing Support

22 Usage potential Marketing/Sales Virtual Devices All product lines Live usage and presentation of whole system setup Software Demos Complex scenario-based self-running demos Reality-like presentation of the current product portfolio Available in a very early stage Independent of hardware availability No need to Equip, install & maintain real hardware for marketing&sales

23 DEMO Marketing/Sales

24 Technical insight Virtual Device Eclipse Equinox started within an Applet Container Graphic layer (IBM BMG) ported for AWT Hardkey support All product lines Live communication with FleetBoard Backend efitnesse ( Configuration Wiki Pack&Go Feature Support to load different system states in optional applet app

25 Usage potential Product Training Test-Adapter Test-Engine Your Software Product Test-Suites Simulations Show and Repeat E-Learning und End User Training Author: Christine Mitterbauer

26 Usage potential Product Training Live training without real hardware Again savings in purchase / installation / maintenance Customized trainings on special customer configuration Inhouse trainings Training on the job for new employees / on new products & features Early availability of new features Applet in customer area on company s website give-away for customers i.e. for self-training

27 Technical insight Configurable simulation of system components i.e. GPS signals Sanning Additional features Preconfigured scenarios Reset system to preconfigured state Replay prepared usage scenarios

28 DEMO Training

29 Usage potential user certification Test-Adapter Test-Engine Your Software Product Test-Suites Simulationen Record and Verify End User Certification Author: Christine Mitterbauer

30 Usage potential user certification Prepare a distinct usage scenario Trace user interaction Verify and Evaluate user actions -> Certificate

31 Technical insight Reuse of existing test recorder tool Record user action and generate executable test scripts Verify expected user interaction Possibility to use applet in customer area on company s website -> customized certifications Outlook: Remote certification

32 Leverage your investment in TDD for product training and user certification Test-Adapter Test-Engine Your Software Product Test-Suites Simulations Record and Verify Analyze and SetUp Demonstrate Show and Repeat End User Certification Test and Verify E-Learning und End User Training Test-Driven- Development Tools for Maintenance Sales und Marketing Support Author: Christine Mitterbauer

33 TDD Usage potentials and budget spreading Development Training Support Sales Marketing

34 Useful Links Technical Paper efitnesse FitNesse Testing Framework Patang Testing Framework Eclipse FitNesse Plug-In Available Embedded Java Virtual Machines Custom Embedded Java Virtual Machines MicroDoc

35 Questions?