def dropdown_value_should_equal(dropdown, value)
      field = find_field(dropdown)
      if field.value != value
        raise Kelp::Unexpected,
          "Expected '#{dropdown}' dropdown's value to equal '#{value}'" + \
          "\nGot '#{field.value}' instead"
      end
    end
def dropdown_value_should_equal(dropdown, value)
      field = find_field(dropdown)
      if field.value != value
        raise Kelp::Unexpected,
          "Expected '#{dropdown}' dropdown's value to equal '#{value}'" + \
          "\nGot '#{field.value}' instead"
      end
    end
Verify that a dropdown currently has the option with the given `value`
 attribute selected. Note that this differs from {#dropdown_should_equal},
 in that it looks at the actual `value` attribute of the selected option,
 rather than its visible contents.

 @param [String] dropdown
   Capybara locator for the dropdown (the `select` element)
 @param [String] value
   Expected `value` attribute of the selected `option`

 @raise [Kelp::Unexpected]
   If the given dropdown's 'value' attribute is not equal to `value`