Rails 5 Test Prescriptions

Minitest Helper Tests

Rails provides the ActionView::TestCase class, which is a subclass of ActiveSupport::TestCase designed to load enough of the Rails controller structure to enable helpers to be called and tested. Let’s look at the Minitest version of the name_with_status helper tests:

minitest/02/test/helpers/project_helper_test.rb

require "test_helper"
class ProjectsHelperTest < ActionView::TestCase
  test "project name with status info" do
    project = Project.new(name: "Project Runway")
    project.stubs(:on_schedule?).returns(true)
    actual = name_with_status(project)
    expected = "<span class='on_schedule'>Project Runway</span>"
    assert_dom_equal(expected, actual)
  end

  test "project name with status info behind ...