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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 ............................................................................................... -
Types of Software Testing
Types of Software Testing We would be glad to have feedback from you. Drop us a line, whether it is a comment, a question, a work proposition or just a hello. You can use either the form below or the contact details on the rightt. Contact details [email protected] +91 811 386 5000 1 Software testing is the way of assessing a software product to distinguish contrasts between given information and expected result. Additionally, to evaluate the characteristic of a product. The testing process evaluates the quality of the software. You know what testing does. No need to explain further. But, are you aware of types of testing. It’s indeed a sea. But before we get to the types, let’s have a look at the standards that needs to be maintained. Standards of Testing The entire test should meet the user prerequisites. Exhaustive testing isn’t conceivable. As we require the ideal quantity of testing in view of the risk evaluation of the application. The entire test to be directed ought to be arranged before executing it. It follows 80/20 rule which expresses that 80% of defects originates from 20% of program parts. Start testing with little parts and extend it to broad components. Software testers know about the different sorts of Software Testing. In this article, we have incorporated majorly all types of software testing which testers, developers, and QA reams more often use in their everyday testing life. Let’s understand them!!! Black box Testing The black box testing is a category of strategy that disregards the interior component of the framework and spotlights on the output created against any input and performance of the system. -
Effective Testing for Concurrency Bugs
Effective Testing for Concurrency Bugs Thesis for obtaining the title of Doctor of Engineering Science of the Faculties of Natural Science and Technology I of Saarland University From Pedro Fonseca Saarbr¨ucken, 13. April 2015 Date of Colloquium: 24/06/2015 Dean of Faculty: Univ.-Prof. Dr. Markus Bl¨aser Chair of the Committee: Prof. Dr. Andreas Zeller First Reviewer: Prof. Dr. Rodrigo Rodrigues Second Reviewer: Prof. Dr. Peter Druschel Third Reviewer: Prof. Dr. George Candea Forth Reviewer: Dr. Bj¨orn Brandenburg Academic Assistant: Dr. Przemyslaw Grabowicz ii c 2015 Pedro Fonseca ALL RIGHTS RESERVED iii Dedicated to my parents and brother v This work was supported by the Foundation for Science and Technology of Portugal (SFRH/BD/45309/2008) and the Max Planck Society vi Abstract In the current multi-core era, concurrency bugs are a serious threat to software reliability. As hardware becomes more parallel, concurrent programming will become increasingly pervasive. However, correct concurrent programming is known to be extremely chal- lenging for developers and can easily lead to the introduction of concurrency bugs. This dissertation addresses this challenge by proposing novel techniques to help developers expose and detect concurrency bugs. We conducted a bug study to better understand the external and internal effects of real-world concurrency bugs. Our study revealed that a significant fraction of concur- rency bugs qualify as semantic or latent bugs, which are two particularly challenging classes of concurrency bugs. Based on the insights from the study, we propose a con- currency bug detector, PIKE that analyzes the behavior of program executions to infer whether concurrency bugs have been triggered during a concurrent execution. -
Professional Software Testing Using Visual Studio 2019
Professional Software Testing Using Visual Studio 2019 Learn practical steps to reduce quality issues and meet release dates and budgets Shift your testing activities left to find bugs sooner Improve collaboration between the developers and testers Get hands-on experience with Visual Studio 2019, Azure DevOps Services, and common marketplace tools. Through a combination of lecture, demonstrations, and team-based exercises, learn to deliver high-quality increments of software on regular iterations using the tools found in Visual Studio, Azure DevOps Services, and the community marketplace. This three-day course provides students with practical software testing techniques and technical skills, as well as exposure to Test-Driven Development (TDD), Acceptance Test-Driven Development (ATDD), Test Impact Analysis, Continuous Integration (CI), and more. Understand and practice development testing acceptance testing, and exploratory testing. Create automated acceptance tests in Visual Studio, use SpecFlow to automate acceptance testing, and learn to use Microsoft Test Runner. Learn to plan and track work, manage test cases, and more utilizing Azure DevOps Services and associated tools. Who Should Attend This course is appropriate for all members of a software development team, especially those performing testing activities. This course also provides value for non-testers (developers, designers, managers, etc.) who want a better understanding of what agile software testing involves. This is an independent course and is neither affiliated with, nor authorized, sponsored, or approved by, Microsoft Corporation. Course Outline Agile Software Testing Exploratory Tests Overview of agile software development Introduction to exploratory tests The agile tester and agile testing practices Using the Microsoft Test & Feedback extension Different types of testing Connected mode vs. -
Professional Software Testing Using Visual Studio 2019 PTVS2019 | 3 Days
Professional Software Testing Using Visual Studio 2019 PTVS2019 | 3 Days This three-day course will introduce you to the contemporary testing principles and practices used by agile teams to deliver high-quality increments of software on regular iterations. Through a combination of lecture, demonstrations, and team-based exercises, students will experience how to do this by leveraging the tools found in Visual Studio, Azure DevOps Services, and the community marketplace. Course Objectives At course completion, attendees will have had exposure to: ✓ Agile software development and testing ✓ Acceptance Test-Driven Development (ATDD) ✓ The role of the agile tester ✓ Creating automated acceptance tests in Visual Studio ✓ Developer and tester collaboration ✓ Using SpecFlow to automate acceptance testing ✓ Agile software requirements ✓ Using Microsoft Test Runner ✓ Introduction to Azure DevOps Services ✓ Testing web and desktop applications ✓ Using Azure Boards to plan and track work ✓ Capturing screenshots and video while testing ✓ Creating, managing, and refining a product backlog ✓ Viewing and charting test run results ✓ Defining and planning for quality software ✓ Using Selenium for automated web UI testing ✓ Using Azure Test Plans for test case management ✓ Using Appium for automated desktop UI testing ✓ Creating and managing test plans ✓ Performance and load testing ✓ Organizing test cases into test suites ✓ Introduction to exploratory testing ✓ Test configurations and configuration variables ✓ Using the Microsoft Test & Feedback extension ✓ Creating and managing test cases ✓ Creating a work item during a testing session ✓ Creating parameterized test cases ✓ Exploratory testing tours ✓ Leveraging shared steps ✓ Requesting and providing stakeholder feedback ✓ Importing and exporting test artifacts ✓ Introduction to Azure Pipelines ✓ Triaging and reporting bugs ✓ Building, testing, & releasing code using Azure Pipelines ✓ Extending Azure Test Plans ✓ Hosted vs. -
Software Engineering
SOFTWARE ENGINEERING FUNDAMENTALS OF SOFTWARE TESTING Software testing is the evaluation of a system with the intention of finding an error or fault or a bug. It also checks for the functionalities of the system so that it meets the specified requirements. LEARNING OBJECTIVES • To execute a program with the intent of finding an error. • To check if the system meets the requirements and be executed successfully in the intended environment. • To check if the system is “Fit for purpose”. • To check if the system does what it is expected to do. STAGES OF TESTING Various testing is done during various phases of the development cycle such as: Module or unit testing. Integration testing, Function testing. Performance testing. Acceptance testing. Installation testing. UNIT TESTING Unit testing is the testing and validation at the unit level. Unit testing validates and tests the following: Algorithms and logic Data structures (global and local) Interfaces Independent paths Boundary conditions Error handling Formal verification. Testing the program itself by performing black box and white box testing. INTEGRATION TESTING One module can have an adverse effect on another. Sub-functions, when combined, may not produce the desired major function. Individually acceptable imprecision in calculations may be magnified to unacceptable levels. Interfacing errors not detected in unit testing may appear in this phase. Timing problems (in real-time systems) and resource contention problems are not detectable by unit testing. Top-Down Integration The main control module is used as a driver, and stubs are substituted for all modules directly subordinate to the main module. Depending on the integration approach selected (depth or breadth first), subordinate stubs are replaced by modules one at a time. -
A Guide for Running an Effective Penetration Testing Programme
A guide for running an effective Penetration Testing programme April 2017 A guide for running an effective Penetration Testing programme Published by: CREST Tel: 0845 686-5542 Email: [email protected] Web: http://www.crest-approved.org/ Principal Author Principal reviewer Jason Creasey, Ian Glover, President, CREST Managing Director, Jerakano Limited DTP notes For ease of reference, the following DTP devices have been used throughout the Penetration Testing Guide. Acknowledgements CREST would like to extend its special thanks to those CREST member organisations who took part in interviews and to those clients who agreed to be case studies. Warning This Guide has been produced with care and to the best of our ability. However, CREST accepts no responsibility for any problems or incidents arising from its use. A Good Tip ! A Timely Warning An insightful Project Finding Quotes are presented in a box like this. © Copyright 2013. All rights reserved. CREST (GB). 2 A guide for running an effective Penetration Testing programme Contents Part 1 – Introduction and overview • About this Guide ................................................................................................................................................4 • Purpose ..............................................................................................................................................................4 • Scope .................................................................................................................................................................5 -
Software Testing for HPC
Software Testing for HPC Nick Johnson, EPCC Reusing this material This work is licensed under a Creative Commons Attribution- NonCommercial-ShareAlike 4.0 International License. http://creativecommons.org/licenses/by-nc-sa/4.0/deed.en_US This means you are free to copy and redistribute the material and adapt and build on the material under the following terms: You must give appropriate credit, provide a link to the license and indicate if changes were made. If you adapt or build on the material you must distribute your work under the same license as the original. Note that this presentation contains images owned by others. Please seek their permission before reusing these images. Motivation • How do you know your program works? • Do you get the right result? • Do all the pieces work? • How can you demonstrate it is correct to others? • How do you know someone else’s code is correct? • Just write some code and see if it compiles? • We can do better • Test our code • Makes our lives easier • Saves us time • Improves the quality of our software • Lets us know when we have finished 3 What is software? • Starts with a customer with a problem • This generates requirements • Then you produce the solution • Design • Code • Installation • Documentation • … • Software is everything you deliver • All of it is testable 4 What is testing? • A procedure or quantifiable way to check the correctness and other metrics of a piece of software. • Testing is a process to verify • Software does what you expect • How well it does it • Applied throughout the -
Correctness and Execution of Concurrent Object-Oriented Programs
DISS. ETH NO. 22101 Correctness and Execution of Concurrent Object-Oriented Programs A thesis submitted to attain the degree of DOCTOR OF SCIENCES OF ETH ZURICH (DR. SC. ETH ZURICH) presented by SCOTT GREGORY WEST Master of Science, McMaster University, Canada born on December 5th, 1983 citizen of Canada accepted on the recommendation of Prof. Dr. Bertrand Meyer, examiner Dr. Sebastian Nanz, co-examiner Prof. Dr. Jonathan Ostroff, co-examiner Prof. Dr. Mauro Pezz`e, co-examiner 2014 Acknowledgements This work is the product of long days and nights, and was only made possible by the help and support of numerous people in my life. First I must thank my parents, Gina and Garry, who have always encouraged me and given me the support and encouragement to pursue my goals. Without them I could have never started this journey, let alone completed it. I also greatly appreciate the wisdom and support of my grandparents, Charles, Mary, and Barbara. Wolfram Kahl, who first got me started on the idea of continuing in academia and provided a perfect start to the process by supervising my Masters thesis, has my deepest appreciation. There are numerous people around me who have supported me over the years: Marco P., Benjamin, Marco T., Claudia, Michela, Chris, Georgiana, Carlo, Martin, Max, Cristiano, Jason, Stephan, Mischael, Juri, Jiwon, Andrey, and Alexey. The relationship I have with my office-mates, Nadia and Christian, is one of the things that I will treasure most from this time. I couldn’t have hoped for a more perfect pair of people to work with every day. -
Security Testing: a Survey
Security Testing: A Survey Michael Felderer, Matthias B¨uchler, Martin Johns, Achim D. Brucker, Ruth Breu, Alexander Pretschner Abstract Identifying vulnerabilities and ensuring security functionality by security testing is a widely applied measure to evaluate and improve the security of software. Due to the openness of modern software-based systems, applying appropriate security testing techniques is of growing importance and essential to perform effective and efficient se- curity testing. Therefore, an overview of actual security testing techniques is of high value both for researchers to evaluate and refine the techniques and for practitioners to apply and disseminate them. This chapter fulfills this need and provides an overview of recent security testing techniques. For this purpose, it first summarize the required background of testing and security engineering. Then, basics and recent developments of security testing techniques applied during the secure software development lifecycle, i.e., model-based security testing, code-based testing and static analysis, penetration testing and dynamic analysis, as well as security regression testing are discussed. Fi- nally, the security testing techniques are illustrated by adopting them for an example three-tiered web-based business application. 1 Introduction Modern IT systems based on concepts like cloud computing, location-based services or social networking are permanently connected to other systems and handle sensitive data. These interconnected systems are subject to security attacks that may result in security incidents with high severity affecting the technical infrastructure or its environment. Exploited security vulnerabilities can cause drastic costs, e.g., due to downtimes or the modification of data. A high proportion of all software security incidents is caused by attackers who exploit known vulnerabilities [115]. -
Security Testing: a Survey
This is a repository copy of Security Testing: A Survey. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/95628/ Version: Submitted Version Book Section: Felderer, M., Büchlein, M., Johns, M. et al. (3 more authors) (2015) Security Testing: A Survey. In: Memon, A., (ed.) Advances in Computers, Volume 101. Elsevier , Cambridge, MA, USA , pp. 1-51. ISBN 9780128051580 https://doi.org/10.1016/bs.adcom.2015.11.003 Reuse This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) licence. This licence only allows you to download this work and share it with others as long as you credit the authors, but you can’t change the article in any way or use it commercially. More information and the full terms of the licence here: https://creativecommons.org/licenses/ Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Security Testing: A Survey Michael Felderer, Matthias B¨uchler, Martin Johns, Achim D. Brucker, Ruth Breu, Alexander Pretschner Abstract Identifying vulnerabilities and ensuring security functionality by security testing is s- a widely applied measure to evaluate and improve the security of software. Due to the openness of modern software-based systems, applying appropriate security testing techniques is of growing importance and essential to perform effective and efficient se- curity testing. -
Automated Conformance Testing for Javascript Engines Via Deep Compiler Fuzzing
Automated Conformance Testing for JavaScript Engines via Deep Compiler Fuzzing Guixin Ye Zhanyong Tang Shin Hwei Tan [email protected] [email protected] [email protected] Northwest University Northwest University Southern University of Science and Xi’an, China Xi’an, China Technology Shenzhen, China Songfang Huang Dingyi Fang Xiaoyang Sun [email protected] [email protected] [email protected] Alibaba DAMO Academy Northwest University University of Leeds Beijing, China Xi’an, China Leeds, United Kingdom Lizhong Bian Haibo Wang Zheng Wang Alipay (Hangzhou) Information & [email protected] [email protected] Technology Co., Ltd. University of Leeds University of Leeds Hangzhou, China Leeds, United Kingdom Leeds, United Kingdom Abstract all tested JS engines. We had identified 158 unique JS en- JavaScript (JS) is a popular, platform-independent program- gine bugs, of which 129 have been verified, and 115 have ming language. To ensure the interoperability of JS pro- already been fixed by the developers. Furthermore, 21 of the grams across different platforms, the implementation ofa JS Comfort-generated test cases have been added to Test262, engine should conform to the ECMAScript standard. How- the official ECMAScript conformance test suite. ever, doing so is challenging as there are many subtle defini- CCS Concepts: • Software and its engineering ! Com- tions of API behaviors, and the definitions keep evolving. pilers; Language features; • Computing methodologies We present Comfort, a new compiler fuzzing framework ! Artificial intelligence. for detecting JS engine bugs and behaviors that deviate from the ECMAScript standard. Comfort leverages the recent Keywords: JavaScript, Conformance bugs, Compiler fuzzing, advance in deep learning-based language models to auto- Differential testing, Deep learning matically generate JS test code.