leobessa

@doc """
Asserts that the given changeset is invalid, and that when the
assertion_expression is applied to the error_message it results in a truthy
value.
"""
defmacro assert_invalid(changeset, field, assertion_expression) when is_atom(field) do
  expr = Macro.to_string(assertion_expression)

  quote do
    error_messages = unquote(changeset)

leobessa

def use_selenium_driver driver
  $__capybara_selenium_driver_name = driver
end

def selenium_driver
  $__capybara_selenium_driver_name || :firefox
end

def (Capybara::Driver::Selenium).driver
  unless @driver