actionpack/test/controller/parameters/raise_on_unpermitted_params_test.rb


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require "abstract_unit"
require "action_controller/metal/strong_parameters"

class RaiseOnUnpermittedParamsTest < ActiveSupport::TestCase
  def setup
    ActionController::Parameters.action_on_unpermitted_parameters = :raise
  end

  def teardown
    ActionController::Parameters.action_on_unpermitted_parameters = false
  end

  test "raises on unexpected params" do
    params = ActionController::Parameters.new(
      book: { pages: 65 },
      fishing: "Turnips")

    assert_raises(ActionController::UnpermittedParameters) do
      params.permit(book: [:pages])
    end
  end

  test "raises on unexpected nested params" do
    params = ActionController::Parameters.new(
      book: { pages: 65, title: "Green Cats and where to find then." })

    assert_raises(ActionController::UnpermittedParameters) do
      params.permit(book: [:pages])
    end
  end
end