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In development, Ember raises an error when previously-used values are updated during a render. This is to avoid 'backtracking', where parts of templates have to be re-rendered multiple times. In general, this kind of pattern should be avoided, and Ember's warning helps us do that. However, for the deprecation warning banner, it is quite reasonable for some rendering to trigger a deprecation, and thereby require the global-notice to be re-rendered. We can use our `DeferredTrackedSet` to achieve that. Its `.add` method will delay adding an item to the Set until after the current render has completed.
82 lines
2.7 KiB
Ruby
82 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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describe "JS Deprecation Handling", type: :system do
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it "can successfully print a deprecation message after applying production-mode shims" do
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visit("/latest")
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expect(find("#main-outlet-wrapper")).to be_visible
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# Intercept console.warn so we can enumerate calls later
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page.execute_script <<~JS
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window.intercepted_warnings = [];
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console.warn = (msg) => window.intercepted_warnings.push([msg, (new Error()).stack])
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JS
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# Apply deprecate shims. These are applied automatically in production
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# builds, but running a full production build for system specs would be
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# too slow
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page.execute_script <<~JS
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require("discourse/lib/deprecate-shim").applyShim();
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JS
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# Trigger a deprecation, then return the console.warn calls
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warn_calls = page.execute_script <<~JS
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const { deprecate } = require('@ember/debug');
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deprecate("Some message", false, { id: "some.id" })
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return window.intercepted_warnings
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JS
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expect(warn_calls.size).to eq(1)
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call, backtrace = warn_calls[0]
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expect(call).to eq("DEPRECATION: Some message [deprecation id: some.id]")
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expect(backtrace).to include("shimLogDeprecationToConsole")
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end
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it "shows warnings to admins for critical deprecations" do
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sign_in Fabricate(:admin)
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SiteSetting.warn_critical_js_deprecations = true
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SiteSetting.warn_critical_js_deprecations_message =
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"Discourse core changes will be applied to your site on Jan 15."
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visit("/latest")
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page.execute_script <<~JS
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const deprecated = require("discourse-common/lib/deprecated").default;
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deprecated("Fake deprecation message", { id: "fake-deprecation" })
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JS
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message = find("#global-notice-critical-deprecation")
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expect(message).to have_text(
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"One of your themes or plugins needs updating for compatibility with upcoming Discourse core changes",
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)
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expect(message).to have_text(SiteSetting.warn_critical_js_deprecations_message)
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end
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it "can show warnings triggered during initial render" do
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sign_in Fabricate(:admin)
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t = Fabricate(:theme, name: "Theme With Tests")
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t.set_field(
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target: :extra_js,
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type: :js,
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name: "discourse/connectors/below-footer/my-connector.gjs",
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value: <<~JS,
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import deprecated from "discourse-common/lib/deprecated";
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function triggerDeprecation(){
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deprecated("Fake deprecation message", { id: "fake-deprecation" })
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}
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export default <template>
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{{triggerDeprecation}}
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</template>
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JS
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)
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t.save!
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SiteSetting.default_theme_id = t.id
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visit "/latest"
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expect(page).to have_css("#global-notice-critical-deprecation")
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end
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end
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