gistfile1.rb

# test/unit/import_trials_test.rb
def test_import
  search_string = "search string"
  inst_name = "institution name"

  Trial.expects(:create_trials_from_xml).with(DownloadTrials::OUTPUT_DIRECTORY, inst_name)                                                                        
  ImportTrials.import(inst_name, search_string)
end 

# test/unit/trial_test.rb
def test_create_trials_from_xml
  xml_trials_dir = File.dirname(__FILE__) + '/../fixtures/files/xml_trials/'
  inst_name = 'Dana Farber Cancer Institute'

  assert_difference 'Trial.count', 3 do
    Trial.create_trials_from_xml(xml_trials_dir, inst_name)
  end 
end