Software Testing Articles: Load Testing, Unit Testing, Functional Testing, Performance Testing, Agile Testing, DevOps
Many organizations are adopting Agile development practices and the Scrum framework for project management. With a software testing perspective, one of the main challenges of this approach is to complete all software testing activities during iterations that could last only one to two weeks. In this article, Clemens Reijnen provides five tips for getting software testing done in a Scrum sprint.
This article by Benjamin Day recommends to use custom counters when you perform load testing. It discusses how Visual Studio 2012 load-testing features call help you solve performance problems. The article describes how to set up Visual Studio to perform load testing, particularly the ability to capture Windows Performance Monitor Counters (PerfMon Counters).
This extract from the book “Pragmatic Unit Testing in Java with JUnit” written by Andy Hunt and Dave Thomas provides an introduction to the usage of mock objects during Java unit tests. They define the usage of mocks in unit testing as the unit similar to the use of lighting doubles in the movies: A mock object is simply a debug replacement for a real-world object.
Best practices for unit testing are that you should only write for each test a single assertion. In this article intends, Jonathan Allen tries to demonstrate that unit tests with multiple assertions are both necessary and beneficial.
In this article, Andrew Hunter shares his opinion that unit tests and test driven development (TDD) now dominate the types of test that are used in software development. This situation has limited the attention available for other software testing types, such as the integration tests. Thus he asks the question: “Are unit tests overused?“
In this article, Cem Kaner explores the technical concept of software testing coverage and the legal concept of software negligence. The article discusses the idea of complete coverage and the trade-off that software developers have to make when testing software. The main idea is that complete coverage is a misleading concept. “This “completeness” is measured only relative to a specific population of possible test cases”. You might achieve line coverage, but to achieve path coverage, you must test every path through the program and this is an impossible task. The goal of the software tester is to prioritize among tests in a careful way. This means to select the test strategy that could be rationally considered as the most likely to find the most bugs or the most serious bugs. This article has an appendix that lists 101 coverage measures.
This article from David Sale provides a short introduction to Behavior-Driven Development in Python. The article presents the principles of Behavior Driven Development and present the syntax of the Gherkin language that can be used with the freshen Python package, a clone of the famous Cucumber BDD framework written for Ruby. Freshen is an open source acceptance testing framework for Python that uses (mostly) the same syntax as Cucumber. A small step by step example is provided on how to use freshen and alternative tools are proposed.
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