Testing Rake Tasks

I’m somewhat new to RoR and I’ve found that along with my main RoR
development work I’ve also developed a number of custom rake tasks
that do various things. I’d like to be able to write unit tests for
these rake tasks and I’ve done a fair bit of google but I haven’t
really seen it explained well how to go about doing that. The typical
advice is to develop your task as a class to test the class, but how
exactly is that done? I’ve developed my latest task as a class, and
added the following code to test/unit:

class MyClassTest < Test::Unit::TestCase
def test_is_day_word
assert MyClassTest.is_day_word(“Tuesday”)

However this throws:

  1. Error:
    NameError: uninitialized constant MyClassTest::MyClass
    active_support/dependencies.rb:492:in const_missing' ./test/unit/masstimes_crawl_test.rb:4:intest_is_day_word’
    active_support/testing/setup_and_teardown.rb:33:in __send__' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/ active_support/testing/setup_and_teardown.rb:33:inrun’

What am I doing wrong and is there a better way to test rake tasks?

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