On 20.03.2014, at 14:33, Sean P. DeNigris <sean@clipperadams.com> wrote:
Max Leske wrote
rewriting our tests with SUnit, moving away from Phexample (for several reasons)
I'm curious about those reasonsâ¦
I think that Phexample is pretty cool and I enjoyed writing tests with it (yes, devs donât usually say that about writing tests :) ). As Esteban said, we donât want to introduce the dependency to Phexample because of the integration. But that is only one reason. Personally I have three issues with Phexample: 1. the more complex a project becomes, the more complex the dependencies between tests get (in my case, chain lengths of 8 - 10). Problems this causes: 1.a there is no visual cue for the dependencies, so you have to try your best with protocols and naming but it just gets very confusing 1.b it becomes more likely to introduce cycles (which often crash your imageâ¦) 1.c it becomes more likely to introduce errors *because of* dependencies (e.g. because I used the wrong selector) and since you assume the dependencies to be fine⦠2. #setUp and #tearDown are executed for every test *even if the test is a dependency*. But in my case I depend on the state that has been established by a test (so maybe I misused Phexample. Unit tests should be self contained. But then again, if they were self contained, would there be a need for dependenciesâ¦?). But that state is destroyed by #setUp and #tearDown. Then again, I *do* need to initialize and destroy some stuff sometimes (which I could to manually, I know; just saying). 3. Especially if you test things that run longer than a couple of milliseconds, the test execution time will grow very fast because of the dependencies. Every test will be run by the suite (n) + every test in a dependency chain (0 < m < inf). That amounts to roughly ~ O(n^2), which is fine for short tests but not if you have longer running tests in there So my take away message from Phexample is: itâs cool to work with and you become pretty fast. Phexample is also cool for TDD because it lets you focus on the problem at hand and everything als can just be assumed to be #given:. But: I would only recommend it for small projects / projects with low complexity (or low number of dependencies). Git has notoriously many dependencies, so I might also just be an outlier (or I may not have understood how Phexample is supposed to work). Sean, regarding your proposal, I am *not* happy with SUnit, so Iâm very happy about any ideas you have :) Cheers, Max
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