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Project: RSpec Rails 3.9

System spec

System specs are RSpec's wrapper around Rails' own
system tests.

System tests allow you to test user interactions with your application,
running tests in either a real or a headless browser. System tests use
Capybara under the hood.

By default, system tests are run with the Selenium driver, using the
Chrome browser, and a screen size of 1400x1400. The next section explains
how to change the default settings.

System specs are marked by setting type to :system, e.g. :type => :system.

The Capybara gem is automatically required, and Rails includes it in
generated application Gemfiles. Configure a webserver (e.g.
Capybara.server = :webrick) before attempting to use system specs.

RSpec does not use your ApplicationSystemTestCase helper. Instead it
uses the default driven_by(:selenium) from Rails. If you want to override
this behaviour you can call driven_by manually in a test.

System specs run in a transaction. So unlike feature specs with
javascript, you do not need DatabaseCleaner.

  • @system_test
System specs
a file named "spec/system/widget_system_spec.rb" with:
require "rails_helper"

RSpec.describe "Widget management", :type => :system do
  before do

  it "enables me to create widgets" do
    visit "/widgets/new"

    fill_in "Name", :with => "My Widget"
    click_button "Create Widget"

    expect(page).to have_text("Widget was successfully created.")
I run rspec spec/system/widget_system_spec.rb
the exit status should be 0
the output should contain "1 example, 0 failures"

Last published about 2 years ago by Jon Rowe.