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packages/intl/test/intl_test.dart

Index: packages/intl/test/intl_test.dart
diff --git a/packages/intl/test/intl_test.dart b/packages/intl/test/intl_test.dart
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+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library intl_test;
+
+import 'package:intl/intl.dart';
+import 'package:unittest/unittest.dart';
+import 'package:intl/date_symbol_data_local.dart';
+
+main() {
+  test("Locale setting doesn't verify the core locale", () {
+    var de = new Intl('de_DE');
+    expect(de.locale, equals('de_DE'));
+  });
+
+  test('DateFormat creation does verify the locale', () {
+    // TODO(alanknight): We need to make the locale verification be on a per
+    // usage basis rather than once for the entire Intl object. The set of
+    // locales covered for messages may be different from that for date
+    // formatting.
+    initializeDateFormatting('de_DE', null).then((_) {
+      var de = new Intl('de_DE');
+      var format = de.date().add_d();
+      expect(format.locale, equals('de'));
+    });
+  });
+
+  test("Canonicalizing locales", () {
+    expect(Intl.canonicalizedLocale('en-us'), 'en_US');
+    expect(Intl.canonicalizedLocale('en_us'), 'en_US');
+    expect(Intl.canonicalizedLocale('en_US'), 'en_US');
+    expect(Intl.canonicalizedLocale('xx-yyy'), 'xx_YYY');
+    expect(Intl.canonicalizedLocale('xx_YYY'), 'xx_YYY');
+    expect(Intl.canonicalizedLocale('C'), 'en_ISO');
+  });
+
+  test("Verifying locale fallback for numbers", () {
+    expect(Intl.verifiedLocale('en-us', NumberFormat.localeExists), 'en_US');
+    expect(Intl.verifiedLocale('en_us', NumberFormat.localeExists), 'en_US');
+    expect(Intl.verifiedLocale('es-419', NumberFormat.localeExists), 'es_419');
+    expect(Intl.verifiedLocale('en-ZZ', NumberFormat.localeExists), 'en');
+    expect(Intl.verifiedLocale('es-999', NumberFormat.localeExists), 'es');
+
+    void checkAsNumberDefault(String locale, String expected) {
+      var oldDefault = Intl.defaultLocale;
+      Intl.defaultLocale = locale;
+      var format = new NumberFormat();
+      expect(format.locale, expected);
+      Intl.defaultLocale = oldDefault;
+    }
+
+    checkAsNumberDefault('en-us', 'en_US');
+    checkAsNumberDefault('en_us', 'en_US');
+    checkAsNumberDefault('es-419', 'es_419');
+    checkAsNumberDefault('en-ZZ', 'en');
+    checkAsNumberDefault('es-999', 'es');
+  });
+
+  test("Verifying locale fallback for dates", () {
+    expect(Intl.verifiedLocale('en-us', DateFormat.localeExists), 'en_US');
+    expect(Intl.verifiedLocale('en_us', DateFormat.localeExists), 'en_US');
+    expect(Intl.verifiedLocale('es-419', DateFormat.localeExists), 'es_419');
+    expect(Intl.verifiedLocale('en-ZZ', DateFormat.localeExists), 'en');
+    expect(Intl.verifiedLocale('es-999', DateFormat.localeExists), 'es');
+
+    void checkAsDateDefault(String locale, String expected) {
+      var oldDefault = Intl.defaultLocale;
+      Intl.defaultLocale = locale;
+      var format = new DateFormat();
+      expect(format.locale, expected);
+      Intl.defaultLocale = oldDefault;
+    }
+
+    checkAsDateDefault('en-us', 'en_US');
+    checkAsDateDefault('en_us', 'en_US');
+    checkAsDateDefault('es-419', 'es_419');
+    checkAsDateDefault('en-ZZ', 'en');
+    checkAsDateDefault('es-999', 'es');
+  });
+}