1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testIntlAvailableLocales.cpp b/js/src/jsapi-tests/testIntlAvailableLocales.cpp
new file mode 100644
index 000000000..f8c04b232
--- /dev/null
+++ b/js/src/jsapi-tests/testIntlAvailableLocales.cpp
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsapi-tests/tests.h"
+
+BEGIN_TEST(testIntlAvailableLocales)
+{
+    // This test should only attempt to run if we have Intl support.
+    JS::Rooted<JS::Value> haveIntl(cx);
+    EVAL("typeof Intl !== 'undefined'", &haveIntl);
+    if (!haveIntl.toBoolean())
+        return true;
+
+    // Assumption: our Intl support always includes "de" (German) support,
+    // and our Intl support *does not* natively support de-ZA-ghijk.  :-)
+    CHECK(JS_SetDefaultLocale(cx, "de-ZA-abcde-x-private"));
+
+    EXEC("if (Intl.Collator().resolvedOptions().locale !== 'de-ZA-abcde-x-private') \n"
+         "    throw 'unexpected default locale';");
+    EXEC("var used = Intl.Collator('de-ZA-abcde').resolvedOptions().locale; \n"
+         "if (used !== 'de-ZA-abcde') \n"
+         "    throw 'bad locale when using truncated default: ' + used;");
+    EXEC("if (Intl.Collator('de-ZA').resolvedOptions().locale !== 'de-ZA') \n"
+         "    throw 'bad locale when using more-truncated default';");
+    EXEC("if (Intl.Collator('de-ZA-ghijk').resolvedOptions().locale !== 'de-ZA') \n"
+         "    throw 'unexpected default locale';");
+
+    EXEC("if (Intl.Collator('de-ZA-abcde-x-private', { localeMatcher: 'lookup' }).resolvedOptions().locale !== \n"
+         "    'de-ZA-abcde-x-private') \n"
+         "{ \n"
+         "    throw 'unexpected default locale with lookup matcher'; \n"
+         "}");
+    EXEC("if (Intl.Collator('de-ZA-abcde').resolvedOptions().locale !== 'de-ZA-abcde') \n"
+         "    throw 'bad locale when using truncated default';");
+    EXEC("if (Intl.Collator('de-ZA').resolvedOptions().locale !== 'de-ZA') \n"
+         "    throw 'bad locale when using more-truncated default';");
+    EXEC("if (Intl.Collator('de').resolvedOptions().locale !== 'de') \n"
+         "    throw 'bad locale when using most-truncated default';");
+
+    CHECK(JS_SetDefaultLocale(cx, "en-US-u-co-phonebk"));
+    EXEC("if (Intl.Collator().resolvedOptions().locale !== 'en-US') \n"
+         "    throw 'unexpected default locale where proposed default included a Unicode extension';");
+
+    CHECK(JS_SetDefaultLocale(cx, "this is not a language tag at all, yo"));
+
+    EXEC("if (Intl.Collator().resolvedOptions().locale !== 'en-GB') \n"
+         "    throw 'unexpected last-ditch locale';");
+    EXEC("if (Intl.Collator('en-GB').resolvedOptions().locale !== 'en-GB') \n"
+         "    throw 'unexpected used locale when specified, with last-ditch locale as default';");
+
+    JS_ResetDefaultLocale(cx);
+    return true;
+}
+END_TEST(testIntlAvailableLocales)