DEV: Adds an integrity spec for JS constants

spec/integrity/js_constants_spec.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+describe "constants match ruby" do
+
+  let(:ctx) { MiniRacer::Context.new }
+
+  def parse(file)
+    # mini racer doesn't handle JS modules so we'll do this hack
+    source = File.read("#{Rails.root}/app/assets/javascripts/#{file}")
+    source.gsub!(/^export */, '')
+    ctx.eval(source)
+  end
+
+  it "has the correct values" do
+    parse("discourse/app/lib/constants.js")
+    parse("pretty-text/addon/emoji/version.js")
+
+    priorities = ctx.eval("SEARCH_PRIORITIES")
+    Searchable::PRIORITIES.each do |key, value|
+      expect(priorities[key.to_s]).to eq(value)
+    end
+
+    expect(ctx.eval("SEARCH_PHRASE_REGEXP")).to eq(Search::PHRASE_MATCH_REGEXP_PATTERN)
+    expect(ctx.eval("IMAGE_VERSION")).to eq(Emoji::EMOJI_VERSION)
+  end
+
+end