How do I inherit abstract unit tests in Ruby?
- by Graeme Moss
I have two unit tests that should share a lot of common tests with slightly different setup methods.  If I write something like
class Abstract < Test::Unit::TestCase
  def setup
    @field = create
  end
  def test_1
    ...
  end
end
class Concrete1 < Abstract
  def create
    SomeClass1.new
  end
end
class Concrete2 < Abstract
  def create
    SomeClass2.new
  end
end
then Concrete1 does not seem to inherit the tests from Abstract.  Or at least I cannot get them to run in eclipse.  If I choose "Run all TestCases" for the file that contains Concrete1 then Abstract is run even though I do not want it to be.  If I specify Concrete1 then it does not run any tests at all!  If I specify test_1 in Concrete1 then it complains it cannot find it ("uncaught throw :invalid_test (ArgumentError)").
I'm new to Ruby.  What am I missing here?