Sebastian Bergmann is the creator of PHPUnit. He co-founded thePHP.cc and helps PHP teams build better software.
The goal of all tests is to discover problems as early as possible. Depending on the context, the same test can be used to answer different questions about the quality of the software under test. Using the three dimensions of goal, scope, and notation is one approach to categorize tests. Attendees of this session will learn which aspects of an application should be tested and how to efficiently implement these tests so that they are easy to write and fast to execute while delivering highly reliable results.
The analysis of code coverage is a feature that is extended and improved with each release of PHPUnit. In this session we will cover all aspects of PHPUnit's code coverage functionality in depth. You will learn how to leverage this important functionality more effectively to augment and guide your testing efforts.
PHPUnit 4.6, which was released last week, adds an optional check for marking a test as risky when global state is manipulated while it's running [...]
It has been argued that Test-Driven Development bears the risk of losing the focus on business value. Domain-Driven Design is an approach to software development that puts a strong focus on business value. Combining ideas of Domain-Driven Design and Test-Driven Development leads to a formalized representation of the ubiquitous language through production code and tests. We will show you how this works.
PHPUnit 4.5 has been released today and features out-of-the-box support for the modern mock object framework Prophecy [...]
Last weekend I attended FOSDEM in Brussels, Belgium and talked about the state of PHPUnit in the "PHP and Friends" room [...]
Every eight weeks a new version of PHPUnit is released. In this session we discuss features that were added recently to help with writing and running tests. The development of new features is not limited to the PHPUnit core anymore, though. Thanks to Composer there is a thriving ecosystem of plugins available that can be used with ease to make your testing effort more effective. We will have a look at the most commonly used plugins and close with an outlook on the future of PHPUnit.
In this article I show you how to migrate your PHPUnit installation from PEAR to PHAR (or Composer) [...]
Most web applications are changed and adapted quite frequently and quickly. What was sufficient yesterday can be insufficient today. Moving fast and breaking things is not a problem if you have a test harness and process in place you can trust to prevent you from deploying broken things into production. Attendees of this session will learn how create tests that are easy to write and fast to execute, require minimal maintenance, and deliver highly reliable results.
Eine Webanwendung kann nur dann Geschäftswert generieren, wenn sie für Anwender verfügbar ist. Änderungen führt man daher klassisch dann durch, wenn die Anwender schlafen. Um die Softwareverteilung in die reguläre Arbeitszeit verlegen zu können, müssen das Verteilen und die Inbetriebnahme der neuen Version voneinander entkoppelt werden. In diesem Vortrag zeigen die Referenten, wie man sämtliche Schritte automatisiert, um eine neue Version einer PHP-Webanwendung in Produktion zu stellen und dabei weder offline gehen noch vermeintlich inkompatible Versionen fürchten muss. Die vorgestellten Konzepte und Prozesse wurden unter anderem bei brack.ch und globetrotter.de implementiert und sind auch jenseits der PHP-Welt anwendbar.
Beyond unit tests, integration tests are crucial. Implemented as end-to-end tests, however, they are cumbersome to write and slow to execute. Edge-to-edge tests are easier to write and faster to execute. More importantly, they require minimal maintenance. Most importantly, they deliver highly reliable results. Developers in the audience will gain expertise in the confident and effective implementation of integration tests with PHPUnit.
Domain-Driven Design puts a focus on domain logic, the heart of business software. It is in this layer of the software that business concepts are represented in code together with their respective business rules. The state that reflects the business situation is controlled and used here. Business rules can be represented in code using state machines. These can be implemented effectively and with ease by applying the State design pattern. Join Sebastian Bergmann on a whirlwind journey through areas of software engineering such as design patterns, static code analysis, software visualization, code generation, and test generation.
It is a fact of life for every developer: you have to deal with code that has been written before your time and does not follow state-of-the-art best practices. The audience will learn in this session how branch-by-abstraction can be applied to "hide" ugly code behind beautiful APIs and how automatically generated characterization tests can be used to safeguard against unintended changes in legacy code while it is modernized. This makes testing in legacy applications possible and enables writing new code that does not suffer from the limitations imposed by the project's history.
This week I travelled to Montabaur, Germany to support a the Joomla project with their testing effort [...]
Soll ich meine Software besser als Ganzes mit End-to-End Tests testen oder doch lieber im Kleinen mit Unit Tests? Und welchen Ansatz soll ich verfolgen? Acceptance Test-Driven (ATDD)? Behavior-Driven Development (BDD)? Test-Driven Development (TDD)? Diese und andere Diskussionen rund um das Testen von Software führen Entwicklerinnen und Entwickler leider allzu oft nur aus der Werkzeugsicht und verlieren dabei den eigentlichen Entwicklungsprozess aus den Augen. Dieser Vortrag erklärt nicht nur die unterschiedlichen Ansätze wie ATDD, BDD und TDD sondern beleuchtet auch wann und in welchem Kontext sie ursprünglich erfunden beziehungsweise wiedergefunden wurden. Die Teilnehmer gewinnen ein Verständnis für die gängigen Prozessbausteine rund um das Testen und können auf dieser Grundlage den für sie passenden Prozess ebenso wählen wie die Werkzeuge, mit dem sie den Prozess umsetzen.
Last week I travelled to Soltau, Germany to attend SoCraTes 2014 [...]
In my presentation at IPC Spring 2014, I provided the audience with an in-depth look at what HHVM is and how it works [...]
Last weekend I travelled to Hamburg, Germany to participate in a code sprint for making the PHPUnit TYPO3 extension better [...]
The PHP language is almost 20 years old, as is its reference implementation that can be downloaded from PHP.net. In the last decade, alternative runtimes for PHP came and went. The HipHop VM (HHVM) that is developed – and used in production – by Facebook, however, is probably not only here to stay but very likely going to influence the future of PHP considerably. High time to have an in-depth look at what HHVM is and how it works.
One of the most important tasks in software testing is to find the right scope for each test case. What can be covered with unit tests and when are system-level end-to-end tests useful? What are functional tests, integration tests, or edge-to-edge tests? How do you test non-functional aspects such as performance? And where do experiment-driven and test-driven development fit in? Attendees of this session will learn which aspects of an application should be tested and how to efficiently implement these tests so that they are easy to write and fast to execute while delivering highly reliable results.
Last week I attended the J and Beyond conference in Königstein im Taunus, Germany [...]
While PHPUnit is not difficult to set up and writing tests with it is easy, you will get better results and save development time if you know the tips and tricks to leverage PHPUnit more effectively. This session, presented by the creator of PHPUnit, teaches best practices you can use to ensure that your unit testing effort is efficiently implemented.
You can build your software right – with 100% code coverage and high internal quality – and still fail to build the right software, the one the customer wants. How can you test that you are building the right software, and the right way? Developers (should) love unit tests. Other project stakeholders love acceptance tests. But which of these tests should drive the development? This session elucidates what Acceptance Test-Driven Development (ATDD), Behavior-Driven Development (BDD), and Test-Driven Development (TDD) are about, what their strengths and weaknesses are, and how you can find the right test mix for your project.
Last week I attended the Inspiring Conference, the leading event for all things TYPO3 FLOW and TYPO3 NEOS, in Kolbermoor, Germany [...]
Sebastian Bergmann uses NASA's Mars Climate Orbiter as a hook to discuss different scopes of testing [...]
One of the highlights of PHPUnit 4.0 is the improved support for integration testing through test proxies [...]
One of the highlights of PHPUnit 4.0 is an improvement of the @covers annotation and the addition of the @uses annotation for better code coverage analysis [...]
Last weekend I attended FOSDEM in Brussels, Belgium [...]
Parts of the PHP community take pride in code that is of high quality and well tested. Outside of the PHP community the prejudice against the language and its ecosystem still prevails. Quality Assurance in general and Unit Testing in particular have come a long way since the inception of PHPUnit thirteen years ago: simple PHP programming has evolved into software engineering with PHP. Join Sebastian Bergmann, the creator of PHPUnit, as he shares his experience on how PHPUnit is used in different communities and projects, and what’s been learnt along the way.
Last week I attended ZendCon Europe in Paris, France [...]
Zend Framework 2 is a popular framework for developing web applications and services in PHP. But just because you use an off-the-shelf framework as the foundation for your development effort does not mean that you do not need to think about the architecture, design, and testability of the software you're building anymore. This session, presented by the creator of PHPUnit, teaches best practices you can use to ensure that your Zend Framework 2 application is easy to test and explains how to test it with PHPUnit.
Beyond Unit Tests, Acceptance and Integration Tests are crucial. Implemented as End-to-End tests, however, they are cumbersome to write and slow to execute. Edge-to-Edge Tests are easier to write and maintain, faster to execute, and deliver more reliable results. The audience will learn how to effectively implement these tests with PHPUnit.
Once upon a time, in a kingdom far, far away there was a wizard. Each day the king laid out a new scenario in which foes of the realm would test his fortress' defenses. And every day the wizard would come up with new measures to keep the fortress safe. One day a knight appeared at the king's court. For each of the contraptions the wizard had implemented the knight made the case that it was superfluous because the scenario it was built to counter could be prevented. When a dragon named Legacy appeared and threatened the realm, the king turned to knight and wizard for counsel. In this Tech Talk, Sebastian Bergmann, creator of PHPUnit, will open his bag of tricks while Stefan Priebsch, a proven expert on software architecture and design, will talk about avoiding these tricks.
Sebastian Bergmann uses the staff of a professional kitchen as a metaphor for a development team that wants to deliver high-quality software [...]
Yesterday I attended DrupalCon Europe in Prague [...]
All your tests are green and you are ready to deploy the latest version of your software into production. Again. If only you had an automated way of doing that to avoid the manual hassle! In this hands-on session you will learn how to make Jenkins and friends push your deployment into the next level, easily maintaining any set of servers.
Yesterday I attended the first edition of the ZEDGE TechTalks in Trondheim, Norway [...]
Quality Assurance in general and Unit Testing in particular have come a long way since the inception of PHPUnit twelve years ago: simple PHP programming has evolved into software engineering with PHP. Join Sebastian Bergmann, the creator of PHPUnit, as he shares his experience on overcoming both the technological challenges of testing PHP code and common organizational issues when introducing software development teams to testing. He will reflect on the lessons learned in the first decade of PHPUnit and will give a look into the tool's future.
Last week I attended the eZ Publish Summer Camp on the island of Brač in Croatia [...]
Symfony2 is a popular framework for developing web applications in PHP. But just because you use an off-the-shelf framework as the foundation for your development effort does not mean that you do not need to think about the architecture, design, and testability of the software you're building anymore. This workshop, presented by the creator of PHPUnit, teaches best practices you can use to ensure that your Symfony2 application is easy to test and explains how to test it with PHPUnit.
Integrationstests schließen die Lücke zwischen Unit Tests und Systemtests, indem sie auf die Schnittstellen zwischen Komponenten fokussieren und sicherstellen, dass ihr Zusammenspiel wie erwartet funktioniert. In diesem Vortrag machen Arne Blankerts und Sebastian Bergmann anschaulich, wie aus einem konkreten Problem bei der Arbeit an Integrationstests in einem Kundenprojekt das Feature "Test Proxies" für PHPUnit entstand. Sie diskutieren das Problem, stellen die Lösung vor, erklären die Implementierung von Mock-Objekten in PHPUnit und zeigen, wie das Feature umgesetzt wurde.
Last month, the first stable version of PHP 5.5 was released. It introduced the "yield" keyword that allows the implementation of generators and coroutines [...]
Last week, the first stable version of PHP 5.5 was released. It introduced a class-level constant that is automatically available on all classes and holds the fully-qualified name of that class [...]
Die Installation von PHPUnit ist nicht schwer und das Schreiben von Tests ist einfach. Sie können aber bessere Ergebnisse erzielen und Entwicklungszeit sparen, wenn Sie die Kniffe kennen, mit denen man PHPUnit effektiver einsetzen kann. In diesem Vortrag erklärt der Entwickler von PHPUnit die besten Praktiken, um Ihre Tests effizient zu implementieren.
Last week, the first stable version of PHP 5.5 was released. This is the first version of PHP to ship with an out-of-the-box bytecode cache. [...]
"How do I convince my manager that I should write unit tests for my code?" and "How can we sell test-driven development to our customer?" are questions I get asked frequently. These questions cannot be answered with technology or tools but instead require an understanding of economics as well as communication skills [...]
Unit Testing does not work for you? You are not alone. Every developer who starts with unit testing faces the same issues. Issues that will not go away by learning more about unit testing or PHPUnit. You are likely looking at the wrong end of the stick. You will learn how to get over the hump quickly when starting with PHPUnit.
Sebastian Bergmann uses a car driver's blind trust in a navigation unit as a metaphor to discuss how quality goals define the architecture of an application [...]
Today I attended the AtlantaPHP user group in Atlanta, GA [...]
Sebastian Bergmann uses the card game Star Fluxx as a metaphor to discuss agile software development, object-oriented design, and quality assurance. [...]
This week I attended the SunshinePHP conference in Miami, FL [...]
It is a fact of life for every developer: you have to deal with code that has been written before your time, that does not follow state-of-the-art best practices, and that — worst of all — is not tested so you cannot safely change or extend it. In this session, the audience will witness the step-by-step refactoring of fictitious legacy code towards a state that is easy to comprehend, extend, test, and maintain.
When you say "PHP" you mean the programming language PHP. This implicitly refers to the PHP Interpreter that is developed by the PHP project and that can be downloaded from PHP.net. Aside from this reference implementation of PHP there are alternative runtime environments for PHP, such as Facebook's HipHop. This session presents an overview of these alternatives and provides an insight into their feasability for production use.
Today’s web applications require frequent updates, not just by adding or upgrading features, but by maintaining and improving the software’s existing code base as well. This tutorial teaches PHP developers how to use Jenkins, the popular continuous integration server, to monitor various aspects of software quality throughout a project’s lifecycle. Attendees of this tutorial will learn how to implement continuous integration to automate processes for building and deploying regular software releases. They will also learn how to use Jenkins to monitor and improve their applications through continuous inspection and static code analysis.
Various testing tools exist to test the different aspects and layers of PHP applications. There is PHPUnit for Unit Testing (and Test-Driven Development), Behat for Acceptance Testing (and Behaviour-Driven Development), Selenium for System Testing, and a plethora of tools for testing non-functional aspects such as performance and security. This presentation provides an overview of the goals of each of these tools and shows the first steps to leveraging them in your daily routine.