by Carlos Ble | Nov 14, 2013 | Testing
In general I prefer to wrap up system functions so that I can inject test doubles and test drive my designs easily. In general is not a good idea to mock objects you don’t own. But this time I was doing some research, preparing one edition of my Online Training...
by Carlos Ble | Nov 10, 2013 | Clean code
Methods should be short, from 1 to 7 lines of code, maximum 10 in some cases (with the exception of some algorithms). Because a method does just one thing its name should describe it precisely. But it should not contain implementation details (like data types). The...
by Carlos Ble | Nov 8, 2013 | Clean code
I believe the idea of a single exit point for functions comes from the 70’s. A function used to have only one exit point, a single return statement. I still see some developers doing this but it’s not a good idea. As soon as you have found what you were...
by Carlos Ble | Oct 30, 2013 | Agile, JavaScript, Retrospectivas, Test Driven Development
Wow, AgileTestingDays 2013 it’s being awesome! I gave my talk today, a practical “live coding” session. Last week I created a real-time application to communicate with the audience so that when I am speaking they can tell me if they are understanding...
by Carlos Ble | Oct 24, 2013 | JavaScript, Plumbing
I didn’t know that the default browser installed on Android is called Webview. I haven’t created any native Android app ever. But I wanted my web app to run on Android using Websockets. Unfortunately, websockets are not implemented in Android Webview. In...
by Carlos Ble | Oct 21, 2013 | Test Driven Development, Testing
No long ago in the Spanish TDD mailing list, some friends said they were struggling with test doubles. A typical question is how to use them to design collaboration a la test-first. Test doubles are something people find hard to understand in my TDD training courses....
by Carlos Ble | Oct 11, 2013 | JavaScript, pyDoubles, Test Driven Development, Testing
There are several good frameworks out there to create test doubles with JavaScript. Jasmine and Sinon provide test spies and stubs. JsMockito looks good too. However, creating your own API for test stubs is very easy. I’ve created mine as an exercise....
by Carlos Ble | Oct 10, 2013 | JavaScript, Testing
Next week, I’ll be taking part in the London Tester Gathering Workshops at SkillsMatter. I’ll be giving a 4 hours workshop on JavaScript aimed at software testers on Thursday. Inspired by the workshop, I am working on a JavaScript manual for testers...
by Carlos Ble | Sep 24, 2013 | JavaScript, Retrospectivas, Test Driven Development
Talking at SkillsMatter Last week was very intense indeed. I gave my first talk at Skills Matter (video here). BDD for RIAs with JavaScript – Skills Matter from Carlos Ble I must say I am not content with my talk because my English was rubbish but on the other...
by Carlos Ble | Sep 11, 2013 | Clean code
“Feature envy” is a typical code smell in Object Oriented Programming. It can be appreciated when code talking to an object accesses directly to that object’s fields or properties, from the outside, breaking the encapsulation. // feature envy:...
