Module: SortableTable::Test::TestHelper::ClassMethods

Defined in:
lib/sortable_table/test/test_helper.rb

Instance Method Summary collapse

Instance Method Details

#should_sort_by(attribute, &block) ⇒ Object



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# File 'lib/sortable_table/test/test_helper.rb', line 12

def should_sort_by(attribute, &block)
  collection = self.name.underscore.gsub(/_controller_test/, '')
  collection.slice!(0..collection.rindex('/')) if collection.include?('/')
  collection = collection.to_sym
  model_name = collection.to_s.singularize.camelize.constantize
  
  if !block
    if model_name.columns.select{|c| c.name == attribute.to_s }.first.type == :boolean
      block = lambda{|x| x.send(attribute).to_s } 
    end
    block ||= attribute
  end

  %w(ascending descending).each do |direction|
    should "sort by #{attribute.to_s} #{direction}" do
      assert_not_nil model_name.find(:all).any?,
        "#{model_name}.find(:all) is nil"

      get :index, :sort => attribute.to_s, :order => direction

      assert_not_nil assigns(collection), 
        "assigns(:#{collection}) is nil"
      assert assigns(collection).size >= 2, 
        "cannot test sorting without at least 2 sortable objects"

      expected = assigns(collection).sort_by(&block)
      expected = expected.reverse if direction == 'descending'

      assert expected.map(&block) == assigns(collection).map(&block), 
        "expected - #{expected.map(&block).inspect}," <<
        " but was - #{assigns(collection).map(&block).inspect}"
    end
  end
end