Category: Ruby
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Failure Notifications for Rake Tasks on the Heroku Scheduler
For users of Heroku, the Scheduler add-on is a convenient and cheap way to run scheduled batch jobs. However, you get what you pay for: it’s a little bare bones. For example, it doesn’t support any sort of notifications when a job fails, a major issue unless you compulsively check your logs. For Rails apps…
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Multiple Delegates in Ruby
I found that, out of the box, delegating method calls to multiple objects is not straight-forward in Ruby. There are two modules in the Ruby standard library that cover most delegation use cases: The delegate module lets you easily delegate all methods to another object, and the forwardable module does the same for some explicitly enumerated methods. Both…
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Robust Parameterized Unit Tests in Ruby with param_test
Parameterized unit tests come in handy when you have a simple API that you want to test in the same way with multiple inputs and expected outputs. Instead of creating duplicates of a test with small variations, it’s often nicer to have a single test that runs multiple times with different parameters – a parameterized…
Salt Mines 