15.5. Callbacks and method inspection in practice
In this section, we’ll implement MicroTest, a tiny test framework. It doesn’t have many features, but the ones it has will demonstrate some of the power and expressiveness of the callbacks and inspection techniques you’ve just learned.
First, a bit of backstory.
15.5.1. MicroTest background: MiniTest
Ruby ships with a testing framework called MiniTest. You use MiniTest by writing a class that inherits from the class MiniTest::Unit::TestCase and that contains methods whose names begin with the string test. You can then either specify which test methods you want executed, or arrange (as we will below) for every test-named method to be executed automatically when you run the file. Inside those methods, ...
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