Continuous Quality and Testing to Accelerate Application Development
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Core Elements of Continuous Testing
WHITE PAPER CORE ELEMENTS OF CONTINUOUS TESTING Today’s modern development disciplines -- whether Agile, Continuous Integration (CI) or Continuous Delivery (CD) -- have completely transformed how teams develop and deliver applications. Companies that need to compete in today’s fast-paced digital economy must also transform how they test. Successful teams know the secret sauce to delivering high quality digital experiences fast is continuous testing. This paper will define continuous testing, explain what it is, why it’s important, and the core elements and tactical changes development and QA teams need to make in order to succeed at this emerging practice. TABLE OF CONTENTS 3 What is Continuous Testing? 6 Tactical Engineering Considerations 3 Why Continuous Testing? 7 Benefits of Continuous Testing 4 Core Elements of Continuous Testing WHAT IS CONTINUOUS TESTING? Continuous testing is the practice of executing automated tests throughout the software development cycle. It’s more than just automated testing; it’s applying the right level of automation at each stage in the development process. Unlike legacy testing methods that occur at the end of the development cycle, continuous testing occurs at multiple stages, including development, integration, pre-release, and in production. Continuous testing ensures that bugs are caught and fixed far earlier in the development process, improving overall quality while saving significant time and money. WHY CONTINUOUS TESTING? Continuous testing is a critical requirement for organizations that are shifting left towards CI or CD, both modern development practices that ensure faster time to market. When automated testing is coupled with a CI server, tests can instantly be kicked off with every build, and alerts with passing or failing test results can be delivered directly to the development team in real time. -
Effectiveness of Software Testing Techniques in Enterprise: a Case Study
MYKOLAS ROMERIS UNIVERSITY BUSINESS AND MEDIA SCHOOL BRIGITA JAZUKEVIČIŪTĖ (Business Informatics) EFFECTIVENESS OF SOFTWARE TESTING TECHNIQUES IN ENTERPRISE: A CASE STUDY Master Thesis Supervisor – Assoc. Prof. Andrej Vlasenko Vilnius, 2016 CONTENTS INTRODUCTION .................................................................................................................................. 7 1. THE RELATIONSHIP BETWEEN SOFTWARE TESTING AND SOFTWARE QUALITY ASSURANCE ........................................................................................................................................ 11 1.1. Introduction to Software Quality Assurance ......................................................................... 11 1.2. The overview of Software testing fundamentals: Concepts, History, Main principles ......... 20 2. AN OVERVIEW OF SOFTWARE TESTING TECHNIQUES AND THEIR USE IN ENTERPRISES ...................................................................................................................................... 26 2.1. Testing techniques as code analysis ....................................................................................... 26 2.1.1. Static testing ...................................................................................................................... 26 2.1.2. Dynamic testing ................................................................................................................. 28 2.2. Test design based Techniques ............................................................................................... -
Studying the Feasibility and Importance of Software Testing: an Analysis
Dr. S.S.Riaz Ahamed / Internatinal Journal of Engineering Science and Technology Vol.1(3), 2009, 119-128 STUDYING THE FEASIBILITY AND IMPORTANCE OF SOFTWARE TESTING: AN ANALYSIS Dr.S.S.Riaz Ahamed Principal, Sathak Institute of Technology, Ramanathapuram,India. Email:[email protected], [email protected] ABSTRACT Software testing is a critical element of software quality assurance and represents the ultimate review of specification, design and coding. Software testing is the process of testing the functionality and correctness of software by running it. Software testing is usually performed for one of two reasons: defect detection, and reliability estimation. The problem of applying software testing to defect detection is that software can only suggest the presence of flaws, not their absence (unless the testing is exhaustive). The problem of applying software testing to reliability estimation is that the input distribution used for selecting test cases may be flawed. The key to software testing is trying to find the modes of failure - something that requires exhaustively testing the code on all possible inputs. Software Testing, depending on the testing method employed, can be implemented at any time in the development process. Keywords: verification and validation (V & V) 1 INTRODUCTION Testing is a set of activities that could be planned ahead and conducted systematically. The main objective of testing is to find an error by executing a program. The objective of testing is to check whether the designed software meets the customer specification. The Testing should fulfill the following criteria: ¾ Test should begin at the module level and work “outward” toward the integration of the entire computer based system. -
Customer Success Story
Customer Success Story Interesting Dilemma, Critical Solution Lufthansa Cargo AG The purpose of Lufthansa Cargo AG’s SDB Lufthansa Cargo AG ordered the serves more than 500 destinations world- project was to provide consistent shipment development of SDB from Lufthansa data as an infrastructure for each phase of its Systems. However, functional and load wide with passenger and cargo aircraft shipping process. Consistent shipment data testing is performed at Lufthansa Cargo as well as trucking services. Lufthansa is is a prerequisite for Lufthansa Cargo AG to AG with a core team of six business one of the leaders in the international air efficiently and effectively plan and fulfill the analysts and technical architects, headed cargo industry, and prides itself on high transport of shipments. Without it, much is at by Project Manager, Michael Herrmann. stake. quality service. Herrmann determined that he had an In instances of irregularities caused by interesting dilemma: a need to develop inconsistent shipment data, they would central, stable, and optimal-performance experience additional costs due to extra services for different applications without handling efforts, additional work to correct affecting the various front ends that THE CHALLENGE accounting information, revenue loss, and were already in place or currently under poor feedback from customers. construction. Lufthansa owns and operates a fleet of 19 MD-11F aircrafts, and charters other freight- With such critical factors in mind, Lufthansa Functional testing needed to be performed Cargo AG determined that a well-tested API on services that were independent of any carrying planes. To continue its leadership was the best solution for its central shipment front ends, along with their related test in high quality air cargo services, Lufthansa database. -
Acceptance Testing Tools - a Different Perspective on Managing Requirements
Acceptance Testing Tools - A different perspective on managing requirements Wolfgang Emmerich Professor of Distributed Computing University College London http://sse.cs.ucl.ac.uk Learning Objectives • Introduce the V-Model of quality assurance • Stress the importance of testing in terms of software engineering economics • Understand that acceptance tests are requirements specifications • Introduce acceptance and integration testing tools for Test Driven Development • Appreciate that automated acceptance tests are executable requirements specifications 2 V-Model in Distributed System Development Requirements Acceptance Test Software Integration Architecture Test Detailed System Design Test See: B. Boehm Guidelines for Verifying and Validating Software Unit Requirements and Design Code Specifications. Euro IFIP, P. A. Test Samet (editor), North-Holland Publishing Company, IFIP, 1979. 3 1 Traditional Software Development Requirements Acceptance Test Software Integration Architecture Test Detailed System Design Test Unit Code Test 4 Test Driven Development of Distributed Systems Use Cases/ User Stories Acceptance QoS Requirements Test Software Integration & Architecture System Test Detailed Unit Design Test These tests Code should be automated 5 Advantages of Test Driven Development • Early definition of acceptance tests reveals incomplete requirements • Early formalization of requirements into automated acceptance tests unearths ambiguities • Flaws in distributed software architectures (there often are many!) are discovered early • Unit tests become precise specifications • Early resolution improves productivity (see next slide) 6 2 Software Engineering Economics See: B. Boehm: Software Engineering Economics. Prentice Hall. 1981 7 An Example Consider an on-line car dealership User Story: • I first select a locale to determine the language shown at the user interface. I then select the SUV I want to buy. -
Model-Based Fuzzing Using Symbolic Transition Systems
Model-Based Fuzzing Using Symbolic Transition Systems Wouter Bohlken [email protected] January 31, 2021, 48 pages Academic supervisor: Dr. Ana-Maria Oprescu, [email protected] Daily supervisor: Dr. Machiel van der Bijl, [email protected] Host organisation: Axini, https://www.axini.com Universiteit van Amsterdam Faculteit der Natuurwetenschappen, Wiskunde en Informatica Master Software Engineering http://www.software-engineering-amsterdam.nl Abstract As software is getting more complex, the need for thorough testing increases at the same rate. Model- Based Testing (MBT) is a technique for thorough functional testing. Model-Based Testing uses a formal definition of a program and automatically extracts test cases. While MBT is useful for functional testing, non-functional security testing is not covered in this approach. Software vulnerabilities, when exploited, can lead to serious damage in industry. Finding flaws in software is a complicated, laborious, and ex- pensive task, therefore, automated security testing is of high relevance. Fuzzing is one of the most popular and effective techniques for automatically detecting vulnerabilities in software. Many differ- ent fuzzing approaches have been developed in recent years. Research has shown that there is no single fuzzer that works best on all types of software, and different fuzzers should be used for different purposes. In this research, we conducted a systematic review of state-of-the-art fuzzers and composed a list of candidate fuzzers that can be combined with MBT. We present two approaches on how to combine these two techniques: offline and online. An offline approach fully utilizes an existing fuzzer and automatically extracts relevant information from a model, which is then used for fuzzing. -
Kickstart Your Gatling Performance Testing
Kickstart Your Gatling Performance Testing Siegfried Goeschl Version 1.0.0, 2018-11-04 Introduction 1 Siegfried Goeschl • Senior Software Engineer • Writing server-side code • Java Meetup Vienna co-organizer • Apache Software Foundation member • Currently working at Erste Bank Austria 2 Introducing Gatling • Performance testing framework • Tests are written in in Scala • Developer-centric test tool • Development started in 2010 • Gatling 3.0.1 released now • Since V3 there are two license models - free & commercial. • As you know some guys have a strong opinion about OSS 3 What Linus Says 4 5 • Having said that a commercial license could generate more revenue keeping the Open Source version alive. 6 Money Makes The World Go Round 7 Gatling vs. FrontLine • Gatling Open Source is under ASL 2.0 • Gatling FrontLine is the enterprise edition ◦ Annual license or "pay as you go" ◦ Web-based, ◦ More bells & whistle ◦ Real-time reporting 8 Under The Hood • Supports HTTP 1.1/2.0 & JMS protocol • Response validation ◦ Regular expressions ◦ XPath & JSONPath ◦ CSS selectors 9 Under The Hood • Provides Domain Specific Language (DSL) • Uses asynchronous non-blocking HTTP client • Integrates with Maven, SBT & Gradle • Test data feeders CSV, JSON, JDBC, Redis • Management-friendly HTML reports • No more 1:1 mapping between virtual users and worker threads. 10 When To Use Gatling? • Want to write test code in your IDE? • Need some integration & performance tests? • Want to run those test on your CI server? • Do you care about reviews and version control? 11 Getting Started 12 Getting Started • JDK 1.8 • Apache Maven 3.5.x • IntelliJ Community Edition • IntelliJ Scala Plugin 13 Getting Started • https://github.com/gatling/gatling-maven-plugin-demo • Import the Maven project into your IDE • Write and debug Scala code there • Execute Gatling tests on the command line • Simple CI integration using Maven • The official Gatling distributable is not suited for development. -
An Analysis of Current Guidance in the Certification of Airborne Software
An Analysis of Current Guidance in the Certification of Airborne Software by Ryan Erwin Berk B.S., Mathematics I Massachusetts Institute of Technology, 2002 B.S., Management Science I Massachusetts Institute of Technology, 2002 Submitted to the System Design and Management Program In Partial Fulfillment of the Requirements for the Degree of Master of Science in Engineering and Management at the ARCHIVES MASSACHUSETrS INS E. MASSACHUSETTS INSTITUTE OF TECHNOLOGY OF TECHNOLOGY June 2009 SEP 2 3 2009 © 2009 Ryan Erwin Berk LIBRARIES All Rights Reserved The author hereby grants to MIT permission to reproduce and to distribute publicly paper and electronic copies of this thesis document in whole or in part in any medium now known or hereafter created. Signature of Author Ryan Erwin Berk / System Design & Management Program May 8, 2009 Certified by _ Nancy Leveson Thesis Supervisor Professor of Aeronautics and Astronautics pm-m A 11A Professor of Engineering Systems Accepted by _ Patrick Hale Director System Design and Management Program This page is intentionally left blank. An Analysis of Current Guidance in the Certification of Airborne Software by Ryan Erwin Berk Submitted to the System Design and Management Program on May 8, 2009 in Partial Fulfillment of the Requirements for the Degree of Master of Science in Engineering and Management ABSTRACT The use of software in commercial aviation has expanded over the last two decades, moving from commercial passenger transport down into single-engine piston aircraft. The most comprehensive and recent official guidance on software certification guidelines was approved in 1992 as DO-178B, before the widespread use of object-oriented design and complex aircraft systems integration in general aviation (GA). -
Drive Continuous Delivery with Continuous Testing
I Don’t Believe Your Company Is Agile! Alex Martins CTO Continuous Testing CA Technologies October 2017 1 Why Many Companies Think They’re Agile… They moved some Dev projects from waterfall to agile They’re having daily standups They have a scrum master Product owner is part of the team They are all talking and walking agile… And are talking about Continuous Delivery BUT… QA is STILL a Bottleneck… Even in DevOps Shops A 2017 survey of self- …of delays were occurring at proclaimed DevOps 63% the Test/QA stage of the practitioners found that … cycle. “Where are the main hold-ups in the software production process?” 63% 32% 30% 16% 22% 21% 23% http://www.computing.co.uk/digital_assets/634fe325-aa28-41d5-8676-855b06567fe2/CTG-DevOps-Review-2017.pdf 3 Challenges to Achieving Continuous Delivery & Testing IDEA Requirements 64% of total defect cost originate in the requirements analysis and design phase1. ? ? of developers time is spent 80% of teams experience delays in development and QA Development 50% 3 finding and fixing defects2 due to unavailable dependencies X X Security 70x required manual pen 30% of teams only security scan 50% more time spent on security test scan cost vs. automation10 once per year9 defects in lower-performing teams8 X X X 70% of all 63% of testers admit they 50% of time 79% of teams face prohibitive QA / Testing testing is still can’t test across all the different spent looking for restrictions, time limits or access manual4 devices and OS versions5 test data6 fees on needed 3rd party services3 ! Release 57% are dissatisfied with the time it takes to deploy new features7 ! ! Ave. -
Your Continuous Testing with Spirent's Automation Platforms
STREAMLINE Your Continuous Testing With Spirent’s Automation Platforms DE RELE VE AS LO E P E T A ING T R G ES E T T S N U I O U IN T N E CO STAG Table of Contents Agile 3 What is Continuous Test (CT)? 4 What Hinders CT Implementation? 5 The Chasm 6 The Bridge 7 Spirent Velocity Framework 8 Lab as a Service (LaaS) 9 Test as a Service (TaaS) 10 CT Implementation Best Practices 11 Summary 12 2 of 12 Agile software development practices gained momentum in the late 90s. Agile emphasizes close collaboration between business stakeholders, the development team, and QA. This enabled faster software delivery, better quality and improved customer satisfaction. By employing DevOps practices, the pace and benefits are amplified. 3 of 12 What is Continuous Test (CT)? Continuous Test (CT) enables CT haed Cotuous terato ad Deery ee network testing to be more effectively performed by DEVELOP ITEATE STAGE ELEASE development teams by enabling them to take advantage of the QA team’s knowledge of real world customer use cases and environments. This is known as “shift left” because testing is moved earlier in the development cycle. With “shift left” tests are run as early as possible to accelerate understanding of AUTOMATE TESTS ORCHESTRATE TEST ENVIRONMENTSEXECUTE TESTS EARLIER problem areas in the code and where development attention is required. Why Do You Need CT? The combination of earlier and faster testing shortens time to release while improving quality and customer satisfaction. 4 of 12 What Hinders CT Implementation? Deficient or non existent Insufficient test Lack of test results Inadequate understanding of tools for creating resources for timely analysis tools hinder customer environments and automated tests test execution assessment of test results use cases by developers EW SOFTWAE DEVELOP ITEATE STAGE ELEASE SOFTWAE BILD ELEASE The promise of DevOps can’t be fully realized until Continuous Testing (CT) is factored in. -
Leading Practice: Test Strategy and Approach in Agile Projects
CA SERVICES | LEADING PRACTICE Leading Practice: Test Strategy and Approach in Agile Projects Abstract This document provides best practices on how to strategize testing CA Project and Portfolio Management (CA PPM) in an agile project. The document does not include specific test cases; the list of test cases and steps for each test case are provided in a separate document. This document should be used by the agile project team that is planning the testing activities, and by end users who perform user acceptance testing (UAT). Concepts Concept Description Test Approach Defines testing strategy, roles and responsibilities of various team members, and test types. Testing Environments Outlines which testing is carried out in which environment. Testing Automation and Tools Addresses test management and automation tools required for test execution. Risk Analysis Defines the approach for risk identification and plans to mitigate risks as well as a contingency plan. Test Planning and Execution Defines the approach to plan the test cases, test scripts, and execution. Review and Approval Lists individuals who should review, approve and sign off on test results. Test Approach The test approach defines testing strategy, roles and responsibilities of various team members, and the test types. The first step is to define the testing strategy. It should describe how and when the testing will be conducted, who will do the testing, the type of testing being conducted, features being tested, environment(s) where the testing takes place, what testing tools are used, and how are defects tracked and managed. The testing strategy should be prepared by the agile core team. -
Manual on Quality Assurance for Computer Software Related to the Safety of Nuclear Power Plants
SIMPLIFIED SOFTWARE LIFE-CYCLE DIAGRAM FEASIBILITY STUDY PROJECT TIME I SOFTWARE P FUNCTIONAL I SPECIFICATION! SOFTWARE SYSTEM DESIGN DETAILED MODULES CECIFICATION MODULES DESIGN SOFTWARE INTEGRATION AND TESTING SYSTEM TESTING ••COMMISSIONING I AND HANDOVER | DECOMMISSION DESIGN DESIGN SPECIFICATION VERIFICATION OPERATION AND MAINTENANCE SOFTWARE LIFE-CYCLE PHASES TECHNICAL REPORTS SERIES No. 282 Manual on Quality Assurance for Computer Software Related to the Safety of Nuclear Power Plants f INTERNATIONAL ATOMIC ENERGY AGENCY, VIENNA, 1988 MANUAL ON QUALITY ASSURANCE FOR COMPUTER SOFTWARE RELATED TO THE SAFETY OF NUCLEAR POWER PLANTS The following States are Members of the International Atomic Energy Agency: AFGHANISTAN GUATEMALA PARAGUAY ALBANIA HAITI PERU ALGERIA HOLY SEE PHILIPPINES ARGENTINA HUNGARY POLAND AUSTRALIA ICELAND PORTUGAL AUSTRIA INDIA QATAR BANGLADESH INDONESIA ROMANIA BELGIUM IRAN, ISLAMIC REPUBLIC OF SAUDI ARABIA BOLIVIA IRAQ SENEGAL BRAZIL IRELAND SIERRA LEONE BULGARIA ISRAEL SINGAPORE BURMA ITALY SOUTH AFRICA BYELORUSSIAN SOVIET JAMAICA SPAIN SOCIALIST REPUBLIC JAPAN SRI LANKA CAMEROON JORDAN SUDAN CANADA KENYA SWEDEN CHILE KOREA, REPUBLIC OF SWITZERLAND CHINA KUWAIT SYRIAN ARAB REPUBLIC COLOMBIA LEBANON THAILAND COSTA RICA LIBERIA TUNISIA COTE D'lVOIRE LIBYAN ARAB JAMAHIRIYA TURKEY CUBA LIECHTENSTEIN UGANDA CYPRUS LUXEMBOURG UKRAINIAN SOVIET SOCIALIST CZECHOSLOVAKIA MADAGASCAR REPUBLIC DEMOCRATIC KAMPUCHEA MALAYSIA UNION OF SOVIET SOCIALIST DEMOCRATIC PEOPLE'S MALI REPUBLICS REPUBLIC OF KOREA MAURITIUS UNITED ARAB