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Tag Archives: Testing

Lessons Learned in Automated Testing

I want to discuss some takeaways from my role as a Quality Assurance (QA) Software Developer. My experiences in QA were two-fold: I started as a Software Engineer responsible for QA on a Scrum team and I later had a role as a QA Engineer responsible for implementing automated testing infrastructure. In the latter position, I made sure teams had ...

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How To Test Your Tests

When we write tests, we focus on the scenario we want to test, and then write that test. Pretty simple, right? That’s how our minds work. We can’t focus on many things at the same time. TDD acknowledges that and its incremental nature is built around it. TDD or not, when we have a passing test, we should do an ...

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Java EE7 and Maven project for newbies – part 7

java-interview-questions-answers

Resuming from the previous parts Part #1, Part #2, Part #3, Part #4, Part #5 , Part #6 In the previous post (num 6) we discovered how we can unit test our JPA2 domain model, using Arquillian and Wildfly 8.1 In the post we made a simple configuration decision, we used the internal H2 database that is bundled with Wildfly ...

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How do I make testing faster?

Earlier this week I was the guest of a large bank in the City, OK Canary Wharf actually. They had their own little internal Agile conference. As well as myself some of the usual suspects were on parade as well as some internal speakers. It was very enjoyable and as usual the C-List speakers were some of the most interesting. ...

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Java EE7 and Maven project for newbies – part 6

java-interview-questions-answers

Resuming from the previous parts Part #1, Part #2, Part #3, Part #4, Part #5 In the previous post (part 5), we discovered how we can unit test using Arquillian, our EJB services, deploying them in a ‘real’ instance of Wildfly8.1 application server. Extending the previous example we will add some more configuration and code, so that we can add ...

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Test Data Builders and Object Mother: another look

Constructing objects in tests is usually a painstaking work and usually it produces a lot of repeatable and hard to read code. There are two common solutions for working with complex test data: Object Mother and Test Data Builder. Both has advantages and disadvantages, but (smartly) combined can bring new quality to your tests. Note: There are already many articles ...

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Continuous Delivery: Unit Tests

In the previous article we explored static analysis as one of the first steps in Continuous Delivery. Our journey will continue with unit tests. Unit Tests Unit tests are probably the most important part of Continuous Delivery. While unit tests cannot substitute integration and functional tests, they are very easy to write and should be very fast to execute. As ...

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No SRP? No TDD!

I’ve been thinking about what makes TDD fail, and there are obviously few reasons that were discussed to death (Get it? Dead? TDD? Ok, let’s move on). There’s a pattern I see when working with beginners. I’m talking about TDD beginners, because these people may have years of experience on them.  They follow the red-green steps religiously, and do minimal ...

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Writing Clean Tests – Divide and Conquer

A good unit test should fail for only one reason. This means that a proper unit test tests only one logical concept. If we want to write clean tests, we have to identify those logical concepts, and write only one test case per logical concept. This blog post describes how we can identify the logical concepts found from our tests, ...

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