discourse/spec/lib/theme_javascript_compiler_s...

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# frozen_string_literal: true
require 'rails_helper'
describe ThemeJavascriptCompiler do
let(:theme_id) { 22 }
describe ThemeJavascriptCompiler::RawTemplatePrecompiler do
# For the raw templates, we can easily render them serverside, so let's do that
let(:compiler) { described_class.new(theme_id) }
let(:helpers) {
<<~JS
Handlebars.registerHelper('theme-prefix', function(themeId, string) {
return `theme_translations.${themeId}.${string}`
})
Handlebars.registerHelper('theme-i18n', function(themeId, string) {
return `translated(theme_translations.${themeId}.${string})`
})
Handlebars.registerHelper('theme-setting', function(themeId, string) {
return `setting(${themeId}:${string})`
})
Handlebars.registerHelper('dummy-helper', function(string) {
return `dummy(${string})`
})
JS
}
let(:mini_racer) {
ctx = MiniRacer::Context.new
ctx.eval(File.open("#{Rails.root}/vendor/assets/javascripts/handlebars.js").read)
ctx.eval(helpers)
ctx
}
def render(template)
compiled = compiler.compile(template)
mini_racer.eval "Handlebars.template(#{compiled.squish})({})"
end
it 'adds the theme id to the helpers' do
# Works normally
expect(render("{{theme-prefix 'translation_key'}}")).
to eq('theme_translations.22.translation_key')
expect(render("{{theme-i18n 'translation_key'}}")).
to eq('translated(theme_translations.22.translation_key)')
expect(render("{{theme-setting 'setting_key'}}")).
to eq('setting(22:setting_key)')
# Works when used inside other statements
expect(render("{{dummy-helper (theme-prefix 'translation_key')}}")).
to eq('dummy(theme_translations.22.translation_key)')
end
it 'works with the old settings syntax' do
expect(render("{{themeSettings.setting_key}}")).
to eq('setting(22:setting_key)')
# Works when used inside other statements
expect(render("{{dummy-helper themeSettings.setting_key}}")).
to eq('dummy(setting(22:setting_key))')
end
it "doesn't duplicate number parameter inside {{each}}" do
expect(compiler.compile("{{#each item as |test test2|}}{{theme-setting 'setting_key'}}{{/each}}")).
to include('{"name":"theme-setting","hash":{},"hashTypes":{},"hashContexts":{},"types":["NumberLiteral","StringLiteral"]')
# Fail would be if theme-setting is defined with types:["NumberLiteral","NumberLiteral","StringLiteral"]
end
end
describe ThemeJavascriptCompiler::EmberTemplatePrecompiler do
# For the Ember (Glimmer) templates, serverside rendering is not trivial,
# so check the compiled JSON against known working output
let(:compiler) { described_class.new(theme_id) }
def statement(template)
compiled = compiler.compile(template)
data = JSON.parse(compiled)
block = JSON.parse(data["block"])
block["statements"]
end
# might change/break when updating ember
EMBER_INTERNAL_ID = 29
it 'adds the theme id to the helpers' do
expect(statement("{{theme-prefix 'translation_key'}}")).
to eq([[1, [EMBER_INTERNAL_ID, "theme-prefix", [22, "translation_key"], nil], false]])
expect(statement("{{theme-i18n 'translation_key'}}")).
to eq([[1, [EMBER_INTERNAL_ID, "theme-i18n", [22, "translation_key"], nil], false]])
expect(statement("{{theme-setting 'setting_key'}}")).
to eq([[1, [EMBER_INTERNAL_ID, "theme-setting", [22, "setting_key"], nil], false]])
# Works when used inside other statements
expect(statement("{{dummy-helper (theme-prefix 'translation_key')}}")).
to eq([[1, [EMBER_INTERNAL_ID, "dummy-helper", [[EMBER_INTERNAL_ID, "theme-prefix", [22, "translation_key"], nil]], nil], false]])
end
it 'works with the old settings syntax' do
expect(statement("{{themeSettings.setting_key}}")).
to eq([[1, [EMBER_INTERNAL_ID, "theme-setting", [22, "setting_key"], [["deprecated"], [true]]], false]])
# Works when used inside other statements
expect(statement("{{dummy-helper themeSettings.setting_key}}")).
to eq([[1, [EMBER_INTERNAL_ID, "dummy-helper", [[EMBER_INTERNAL_ID, "theme-setting", [22, "setting_key"], [["deprecated"], [true]]]], nil], false]])
end
end
end