Localize website in all supported languages and refresh site icons

scripts/test_site.cjs

@@ -0,0 +1,46 @@
+// Run with node scripts/test_site.cjs dist/site.js.
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const vm = require('node:vm');
+const source = fs.readFileSync(process.argv[2] || 'dist/site.js', 'utf8');
+
+function visit(language, pathname = '/', saved, blocked = false) {
+  let redirected, click;
+  const context = {
+    navigator: { language },
+    location: { pathname, search: '?ref=test', hash: '#formats', replace: url => { redirected = url; } },
+    document: { addEventListener: (type, listener) => { click = listener; } },
+    localStorage: {
+      getItem: () => { if (blocked) throw new Error('Storage disabled'); return saved; },
+      setItem: (key, value) => { if (blocked) throw new Error('Storage disabled'); saved = value; },
+    },
+  };
+  vm.runInNewContext(source, context);
+  return { context, redirected, choose: tag => click({ target: { closest: () => ({ hreflang: tag }) } }), saved: () => saved };
+}
+
+for (const [language, expected] of Object.entries({
+  'tr-TR': 'tr-TR', 'tr-CY': 'tr-TR', 'TR': 'tr-TR', 'pt-PT': 'pt-BR',
+  'zh-Hant': 'zh-TW', 'zh-Hant-HK': 'zh-TW', 'zh-HK': 'zh-TW', 'zh-MO': 'zh-TW',
+  'zh-Hans-SG': 'zh-CN', 'en-GB': 'en-US', 'sv-SE': 'en-US', '': 'en-US',
+})) {
+  const result = visit(language);
+  assert.equal(result.context.preferredLocale(language), expected);
+  assert.equal(result.redirected, expected === 'en-US' ? undefined : `/${expected}/?ref=test#formats`);
+}
+const context = visit('en-US').context;
+for (const locale of vm.runInNewContext('SITE_LOCALES', context)) {
+  assert.equal(context.preferredLocale(locale), locale);
+}
+assert.equal(visit('tr-TR', '/', 'en-US').redirected, undefined);
+assert.equal(visit('sv-SE', '/', 'tr-TR').redirected, '/tr-TR/?ref=test#formats');
+assert.equal(visit('tr-TR', '/', '../../unsafe').redirected, '/tr-TR/?ref=test#formats');
+assert.equal(visit('tr-TR', '/en-US/', undefined, true).redirected, undefined);
+assert.equal(visit('en-US', '/tr-TR/').redirected, undefined);
+assert.equal(visit('tr-TR', '/', undefined, true).redirected, '/tr-TR/?ref=test#formats');
+assert.equal(visit('tr-TR', '/index.html').redirected, '/tr-TR/?ref=test#formats');
+const choice = visit('en-US');
+choice.choose('tr-TR');
+assert.equal(choice.saved(), 'tr-TR');
+visit('en-US', '/', undefined, true).choose('en-US');
+console.log('Website language matching, redirects, manual choices and blocked storage passed');