module ActiveSupport::Testing::ConstantLookup - activesupport-4.2.3 Documentation

# module ActiveSupport::Testing::ConstantLookup

Resolves a constant from a minitest spec name.

Given the following spec-style test:

    describe WidgetsController, :index do
      describe "authenticated user" do
        describe "returns widgets" do
          it "has a controller that exists" do
            assert_kind_of WidgetsController, @controller
          end
        end
      end
    end

The test will have the following name:

    "WidgetsController::index::authenticated user::returns widgets"

The constant WidgetsController can be resolved from the name. The following code will resolve the constant:

    controller = determine_constant_from_test_name(name) do |constant|
      Class === constant && constant < ::ActionController::Metal
    end