Many people confuse the three concepts. For a business to grow or for a project to succeed, these need to be well understood. I will use a driving navigation system to explain them.
Before you set out, you need a destination, a goal. A goal needs to be measurable, that is, you need a way to confirm that you have achieved it. When driving, that usually means arriving at the specified coordinates. Additionally, you may want to get there within no more than 40 minutes.
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A montreal-based newspaper recently released a new mobile product to read news. It’s very nice, but it cost them 40 million and took 3 years to ship, with some 100 people on the team. My company has enough experience with news corporations and other industries to know that there was a lot of waste. My associate stated on social media that he could save them millions on their next project. It’s what we specialize in: generating millions in ROI for our clients.
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Most see this as a good thing, but I find the whole “we need more women speakers” speech very irritating. Too many PHP conferences are doing it. I don’t like that. I have your attention, but you may have already come up with some questions for me. Are you against diversity? Are you sexist? Do you think that women should stay at home and cook? The simple fact of my disagreeing on the topic almost inevitably lead to such assumptions. I will explain my position through personal stories.
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I have recently read a blog post claiming that functional tests are not “true” tests. The author also claims that unit testing shows you where the problem is occurring, while functional testing simply identifies that a problem exists. This argument is deceptive and the conclusion dangerous. Different kinds of tests are not mutually exclusive. One is not superior to the other. They have different goals and can happily coexist. Let me explain the kinds of tests so that you could make enlightened decisions.
Do you want to write unit tests but don’t know where to begin? Don’t panic and follow these steps to ease into the testing business. Practice testing often to achieve best results.
Tip: try to test the smallest unit possible, usually a function, rather than a combination of functions. Testing combinations is called integration testing, which I will cover in subsequent posts.
Here are a few easy to spot opportunities for writing unit tests.
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