Presentation on theme: "Automated Software Testing using Open Source Testing Tools"— Presentation transcript:
1 Automated Software Testing using Open Source Testing Tools By Elfriede Dustin
2 Agenda Who is IDT State of Software Testing What is Automated Test and Re-test (ATRT)Approach to ATRTAdvantage of open sourceATRT and open source – Our IDE and solutionATRT Challenges
3 Who is IDT?IDT specializes in the design, development, and implementation of Automated Software Testing and Re-Test (ATRT) and Quality Assurance (QA) solutionsDeliver turn key automated test suiteAutomated test strategy and identification of highest payoff areas to apply automation for your projectSelection of best automation tools for your projectUsing your existing test cases or develop test cases for youTest results documented in requirements traceability matrixTraining and pilot project implementation with companies
4 Who is IDT?IDT specializes in the design, development, and implementation of Automated Software Testing and Re-Test (ATRT) and Quality Assurance (QA) solutionsDeliver turn key automated test suiteAutomated test strategy and identification of highest payoff areas to apply automation for your projectSelection of best automation tools for your projectUsing your existing test cases or develop test cases for youTest results documented in requirements traceability matrixTraining and pilot project implementation with companiesWe are currently hiring Java DevelopersPlus we’d like to hire 2 or 3 grad students to work for us part time ( i.e. 20 hours week )must be US citizen4
6 State of Software Testing - Why ATRT? 50% or More of Overall Development Cost is Typically Spent on TestingUtilize Automated Testing Strategies and Technology to Improve Productivity and QualitySpiral / Release 4Reduction in Test DaysSpiral / Release 3Increased Test CoverageSize & Complexity of SW BaselineTest DaysSpiral / Release 2ManualTest DaysSpiral / Release 1AutomatedTest DaysManual vs. AutomatedTest DaysIDT Provides Automated Software Testing Solutions6
7 What is ATRT?Our definition of ATRT is:Application and implementation of software technology throughout the entire Software Testing Life Cycle (STL) and QA lifecycle; with the goal to improve STL efficiencies and effectiveness
8 ATRT Spans the Software Development Life Cycle – Visual Modeling DesignBuildAssembleRound-Trip EngineeringDevelopment ToolsComponentsTestUse casesModeling and test case generation
9 ATRT Spans the Software Development Life Cycle – Requirements Requirements Management andProcess AutomationVisual ModelingDevelopment ToolsComponentsOrganizes, tracks, & controls requirementsRequirements Traceability Matrix (RTM)
10 ATRT Spans the Software Development Life Cycle – Automated Test Tools Requirements Management andProcess AutomationVisual ModelingDevelopment ToolsComponentsDevelopmentManagementExecutionAutomated Software TestingAutomated Testing ToolsAutomates test cases using vendor-provided,open-source tools or in-house development
11 Requirements Management and ATRT Spans the Software Development Life Cycle – Integrated Suite of ToolsRequirements Management andProcess AutomationAdditionally:MiddlewareInfrastructureDefect TrackingConfiguration ManagementMemory Leak DetectorsPerformance Testing ToolsDocumentation ToolsothersVisual ModelingInfrastructureMiddlewareAutomated Testing ToolsDevelopment ToolsComponentsSoftware Configuration ManagementDefect Tracking
12 Types of Software Test Life-cycle Support Tools Which tools are you familiar with?
13 Types of Automated Test Tools Life-CyclePhaseType of ToolTool DescriptionBusinessAnalysisBusiness ModelingRecords definitions of user needs and automates rapid construction offlexible, graphical, client-server applicationsConfigurationManagementBaselines important data repositoriesDefect TrackingManages system life-cycle defectsTechnical ReviewFacilitates communication, while automating the technical review/inspection processDocumentationGeneratorsAutomate document generationRequirementsDefinitionManages and organizes requirements; allows for test procedure design and test progress reportingVerifiersVerify syntax, semantics, and testabilityUse CaseCreate use cases
14 Types of Tools (Cont’d) Life-CyclePhaseType of ToolTool DescriptionAnalysis and Design PhaseDatabase DesignDevelops second generation enterprise client-server systemsStructure Charts, Flowcharts, and Sequence DiagramsManage processesTest Procedure GeneratorsGenerate test procedures from requirements, design, or data and object modelsSyntax Checkers/ DebuggersPerform syntax checking and have debugging capability; usually available with built-in programming language compilerProgramming PhaseMemory Leak and Runtime Error DetectionDetects runtime errors and memory leaksSource Code TestingVerifies maintainability, portability, complexity, and standards complianceStatic and Dynamic AnalyzersDepict quality and structure of codeMetrics ToolsCode (Test) Coverage Analyzers or Code InstrumentorsIdentify untested code and support dynamic testingUsability MeasurementsProvide usability testing as conducted in usability labs
15 Types of Tools (Cont’d) Life-CyclePhaseType of ToolTool DescriptionOther TestingSupport ToolsData Extraction ToolExtract Data from various formats into various formatsTest Data GeneratorsGenerate test dataFile Compare UtilitiesFind discrepancies between files that should be identical in contentSimulationSimulates application to measure for scalability, among other tasksTest ManagementTests managementNetwork TestingMonitors, measures, tests, and diagnoses performance across the entire networkGUI Testing (Capture/Playback)Conducts automated GUI tests; capture/playback tools record user interactions with online systems so they may be replayed automaticallyLoad/Performance TestingConducts load/performance and stress testingSecurity TestingPerforms security testing and vulnerability scanning at the application or network level; plus debuggers will allow to check for security coding errors (source code checkers)
16 Deployment Approach – Adapted ATLM Populate Test Manager with Test Cases and RequirementsDevelop Test Scripts from Test ProceduresTest Results:Pass/Fail by Test CasePass/Fail SummaryTest Time RequiredIdentify or Develop& PilotTest ManagerTest ScriptsData ComparatorsPerformance Test ToolsGUI Record/PlaybackStoring/Retrieving ResultsCollect/Create:RequirementsTest CasesTest ProceduresExpected ResultsInterface SpecificationsSystem/ComponentConfiguration Description
18 Why Open Source? Advantage of Open Source: no licensing issues; i.e. license cost; maintenance; etc.easily modifiableadaptablelightweightflexibility - not tied to one vendor
19 ATRTs IDE - Eclipse Eclipse – this site lists all the plugins Eclipse/TPTP – Open Source - Developed by IBMEclipse/Test and Performance Tools Platform (TPTP) offers a common extensible framework for the following functions:Requirements ManagementConfiguration Management - SubversionTesting Tools (http://www.nabble.com/Eclipse-TPTP---Testing-Tools-f2262.html)Profiling: default Java applications, but can be extended to other apps19
20 ATRTs IDE - EclipseEclipse/Test and Performance Tools Platform (TPTP) offers a common extensible framework for the following functions (cont):Static Analysis: default for C++ and Java, but can be extended to other appsApplication monitoring and log analysisBuild tool – antXml input and output - using an open source Java package , which is a Java library that has an API for constructing and outputting XML. Test Manager – STAF/STAX20
21 Current Test Tool Implementation – Example and Challenges Vendor-provided (Capture/Playback) Tool:Automated test tools mimic actions of the test engineer.During testing, the engineer uses the keyboard and mouse to perform some type of test or action.Testing tool captures all keystrokes and subsequent results, which are baselined in an automated test script.During test playback, scripts compare latest outputs with previous baseline.Testing tools have built-in, reusable test functions.Most test tools provide for non-intrusive testing; i.e., they interact with the “application-under-test” as if the test tool was not involved.
22 Current Testing Tools – Challenges (cont) In-House Software Development required:Capture/Playback tools generate hard-coded values; test scripts are not reusable, nor do they implement software development best practices right out of the box; scripts need to be modified.Capture/Playback tools don’t necessarily provide all testing features required; code enhancements are often required to meet testing needs.Capture/Playback tools are not necessarily compatible with system engineering environment, and software testing scripts need to be developed in-house.Developed testing scripts are not cross-vendor compatible, even if the same scripting language is used
23 Linux Capture/Playback Tools IDT Findings Replay XcessoryQF-TestFroglogicRedstone SoftwareEggplantKD ExecutorJameleonShUnit2for shell scripts testingGNU Linux Desktop ProjectCantanacrontabPart of Unixcrontab, cruisecontrol,DogtailExpect
24 Automated Test and Re-Test (ATRT) ATRT includes a common framework comprised of re-usable software servicesOpen Source Software Test Automation Framework (STAF)Provides automated test procedures, test inputs, and test results for SW componentsSuitable for use by 3rd parties not associated with development of the component
25 What is STAX? STAX is an automation system With STAX you can automate and monitor your entire test environmentSystem/product setupTestcase distributionTestcase executionTestcase results collection and analysisSTAX consists ofA programming language designed for automationPrograms written in this language are called jobsAn execution engine (similar to an interpreter for other programming/scripting languages) which manages the execution and runtime behavior of the jobA GUI application, called the STAX Monitor, which provides a dynamically updated view of your executing jobsA tool (STAXDoc) that is used to generate documentation for your STAX jobs
26 STAF can run on: * Windows 95 * Windows 98 (and 98 SE) * Windows Millenium Edition * Windows NT Version 4.0 * Windows 2000 * Windows XP * Windows Server 2003 (IA32, IA64, AMD64) * Windows Vista (IA32, AMD64) * Linux (Intel32/64, AMD64, PPC32/64) * Linux on zSeries (31-bit, 64-bit) * AIX Version or higher (32-bit, 64-bit) * Solaris (Sparc) 2.6 and higher * Solaris AMD Opteron 64-bit * HP-UX and higher (PA-RISC, IA64 32-bit and 64-bit) * OS/400 V5R2 or higher * z/OS UNIX V1.4 and higher
27 STAF Internal Services DIAG Provides diagnostics services Internal ("DIAG")DELAY Provides a means to sleep a specified amount of time Internal ("DELAY")ECHO Echos back a supplied message Internal ("ECHO")FILE SYSTEM Allows you to get and copy files across the network Internal ("FS")HANDLE Provides information about existing STAF handles Internal ("HANDLE")HELP Provides Help on STAF error codes Internal ("HELP")MISC Handles miscellaneous commands such as displaying the version of STAFthat is currently running Internal ("MISC")PING Provides a simple is-alive message Internal ("PING")PROCESS Allows you to start, stop, and query processes Internal ("PROCESS")QUEUE Provides a network-enabled IPC mechanism for STAF Programs Internal ("QUEUE")SEMAPHORE Provides network-enabled named event and mutex semaphores Internal ("SEM")SERVICE Allows you to list services available on a machine and to examine theRequests that have been submitted on a machineInternal ("SERVICE")SHUTDOWN Provides a means to shutdown STAF and register for shutdownNotifications Internal ("SHUTDOWN")TRACE Provides tracing information for STAF services Internal ("TRACE")TRUST Interfaces with STAF's security Internal ("TRUST")VARIABLEProvides a method for maintaining configuration and runtime data(variables) Internal ("VAR")
28 STAF External Services The executable code for external STAF services resides outside of STAFProc, for example in a Java jar file, a C++ DLL file, or a Rexx script file.CRON Calls into STAF services at a specified time interval External (Java)Allows you to send messages External (Java)EVENT Provides a publish/subscribe notification system External (Java)EVENTMANAGER Allows you to call STAF services when a specified Event occurs External (Java)HTTP Allows you to make HTTP requests which can be grouped together in a session External (Java)LOG Provides a full-featured logging facility External (C++)MONITOR Allows a testcase to publish its current running execution status for others to read External (C++)RESOURCE POOL Allows you to manage exclusive access to pools of elements, e.g. VM UserIDs or Software Licenses External (C++)STAX Provides an XML-based execution engine External (Java)ZIP Provides a means to zip/unzip/list/delete PKZip/WinZip compatible archives External (C++)
29 Technologies used in STAX STAFSTAF provides the infrastructure on which STAX builds. The full power of STAF and its services is exposed for use within STAX jobs.XMLThe STAX programming language is based on XML. This provides built-in structure to your jobs, as well as providing a set of existing tools for use in constructing your jobs, such as XML (aware) editors and XSLT.PythonThe STAX programming language builds on Python to provide a rich and accessible data modelSTAX's Python integration also allows you to access the wealth of existing Python librariesJavaThe STAX programming language allows you to access existing Java classes/libraries, providing another source for reuse
32 Key ATRT Architecture Requirements Support applications running on multiple computersSupport applications developed in different languagesSupport applications running on different types of OS’sSupport applications which have GUI and those which do not (for example Interface testing)Support applications which use different types of network protocols such as TCP/IP, DDS, etcSupport integration of multiple commercial testing tools from different vendors ( allowing as new or better products emerge in the market they can be utilized )Support testing w/o having to install ATRT on the same computers as the application under test and be able to be distributed across computers
33 Prototype – Proof of Concept Analysis & DisplayApplicationDisplay ApplicationDisplay ApplicationSystem Under TestWindowsBasedSimulation of ApplicationProcessing MessagesEggplantR/PVNC RobotR/PSimulation of ApplicationProcessing MessagesATRTTest ManagerRTMBugzillaLinux BasedSTAF/STAX33
34 ATRT Prototyping Effort Able to successfully execute ATRT for 48 hours without operator interventionDuring the tests:VNCRobot - Approximately 25,000 operator key strokes were replayedSTAF/STAX - More than 1,000,000 messages processed and verified by ATRT
35 Additional Requirement Pristine test environment required – automated testing tool cannot be installed on Application-Under-Test PCEggplant – allows for remote capture/playback via VNCserver and KVM switchVNCRobot
36 Automated Software Testing Software testing paradoxWhat is it?
37 Effective Automated Software Testing Current State:Developing software in order to test softwareAutomate the test support development: automated IDL to code generation; test data generation (using FireEye from NIST); compare utilities; log file analyzers;Our Automated Software Testing Goal:Minimize Human interactionPossibly get on par with Hardware Automated Testing?
38 Hardware Testing: current state Many automated test generators for manufacturing/ logic devices, circuit testing, etc., available i.e. SEI/ATG, uMaster, etc.Automated testing without human interaction is the norm for hardware testing
39 Hardware vs. Software AT How is hardware testing different?Software Challenge:Changing requirementsGUI interfacesCode access/availabilityDefects uncovered earlier in the software development lifecycle are cheaper to fixSolution flexibility required – problem dependent
40 Proposed solutions Focus on Reusable Components Test Data / Expected ResultsInterfacesMiddlewareAssuming code and models are available:Model based testing; automated test case generators based on modelsEclipse – effective ATRT IDEProbes – see Aprobe – Code instrumentationBuilding self-testable componentsUsing standard language MOF to Text to generate automate test casesGUI Testing tool ideasNew tools - otherWorking with NIST to produce additional tools
41 GUI Testing Jemmy - java library to test UI http://jemmy.netbeans.org/ Perl modulesrun via VNCServer?