I was using rcov[1] on my tests and was pleasantly surprised to see that much
of my code was being exercised, but somehow the number of lines of test code
did not sync up with what I expected so I went looking for models and
controllers that were missing unit and functional tests. Here is a rake task
you can dump into your Rakefile or /lib/tasks. You can then run:
rake missing_tests
and it will let you know where you have failed to create a test file (it
offers no opinion on how meaningful your tests are :). I really recommend
rcov as another tool if you are looking for some automated feedback about
what code is being executed by your tests.
Comments welcome!
[1] http://eigenclass.org/hiki.rb?rcov
------------
desc "Look for possibly missing tests in unit and functional
directories"
task :missing_tests
models = Dir.glob("app/models/**/*.rb")
controllers = Dir.glob("app/controllers/**/*.rb")
unit_tests = Dir.glob("test/unit/**/*.rb")
functional_tests = Dir.glob("test/functional/**/*.rb")
models.each do|model|
original_dir, suspected_test = File.split(model)
suspected_test.sub!(''.rb'', '''')
test_found = !unit_tests.select{|s| s =~ /#{suspected_test}_test/}.empty?
puts "unit test apparently missing for #{model}" unless test_found
end
controllers.each do|controller|
original_dir, suspected_test = File.split(controller)
suspected_test.sub!(''.rb'', '''')
test_found = !functional_tests.select{|s| s =~
/#{suspected_test}_test/}.empty?
puts "functional test apparently missing for #{controller}" unless
test_found
end
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