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This change seeks to improve the reliability of our system tests by resolving the lack of consistency in the state of the client side application between steps in a system test. This is achieved by patching various action methods in `Capybara::Playwright::Node` and `Capybara::Playwright::Browser` so that the methods execute an async JavaScript function on the client side that waits for the client side application to reach a settled state. A settled state is currently defined as: 1. No inflight ajax requests. (_messageBus and presence requests are excluded_) 2. 2 event cycles of the Javascript event loop has happened for for all "click", "input", "mousedown", "keydown", "focusin", "focusout", "touchstart", "change", "resize", "scroll" DOM events that fired. For debugging purposes, a `--debug-client-settled` CLI flag has been added to `bin/rspec`. When used, detailed debugging information will be printed to the browser's console as well as to `stdout` of the `bin/rspec` process. This change was inspired by https://evilmartians.com/chronicles/flaky-tests-be-gone-long-lasting-relief-chronic-ci-retry-irritation and the https://github.com/makandra/capybara-lockstep rubygem.
22 lines
557 B
Ruby
22 lines
557 B
Ruby
# frozen_string_literal: true
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describe "capabilities service", type: :system do
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describe "viewport helpers" do
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it "works" do
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def matches(name)
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page.evaluate_script("Discourse.lookup('service:capabilities').viewport[#{name.to_json}]")
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end
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visit "/"
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expect(page).to have_css("#site-logo")
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expect(matches("sm")).to eq(true)
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expect(matches("lg")).to eq(true)
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resize_window(width: 700) do
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expect(matches("sm")).to eq(true)
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expect(matches("lg")).to eq(false)
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end
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end
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end
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end
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