Our First Test

We started with just an empty test framework.
# file: testnet.rb require 'test/unit' class TestNet < Test::Unit::TestCase end

Ruby Comments: The require statement in Ruby looks in the ruby libraries for a file named 'test/unit.rb' and will load it in to the running program.
A class is introduced with the keyword class. Our test class inherits from a library class named Test::Unit::TestCase. The double colons act as namespace operators (similar to C++).

Time to run the test ...

$ ruby testnet.rb Loaded suite testnet Started... . Finished in 0.016573 seconds. 0 runs, 0 assertions, 0 failures, 0 errors

No surprise, but this shows that our test framework is working properly. (if you are following along with the tutorial, and your tests fail here, see note)

Let's add a real test now ...

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