michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/ArrayUtils.h"
michael@0: #include "mozilla/PodOperations.h"
michael@0: 
michael@0: #include "jsapi-tests/tests.h"
michael@0: 
michael@0: using mozilla::ArrayLength;
michael@0: using mozilla::PodEqual;
michael@0: 
michael@0: static const jschar arr[] = {
michael@0:     'h', 'i', ',', 'd', 'o', 'n', '\'', 't', ' ', 'd', 'e', 'l', 'e', 't', 'e', ' ', 'm', 'e', '\0'
michael@0: };
michael@0: static const size_t arrlen = ArrayLength(arr) - 1;
michael@0: 
michael@0: static int finalized1 = 0;
michael@0: static int finalized2 = 0;
michael@0: 
michael@0: static void
michael@0: finalize_str(const JSStringFinalizer *fin, jschar *chars);
michael@0: 
michael@0: static const JSStringFinalizer finalizer1 = { finalize_str };
michael@0: static const JSStringFinalizer finalizer2 = { finalize_str };
michael@0: 
michael@0: static void
michael@0: finalize_str(const JSStringFinalizer *fin, jschar *chars)
michael@0: {
michael@0:     if (chars && PodEqual(const_cast<const jschar *>(chars), arr, arrlen)) {
michael@0:         if (fin == &finalizer1) {
michael@0:             ++finalized1;
michael@0:         } else if (fin == &finalizer2) {
michael@0:             ++finalized2;
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: BEGIN_TEST(testExternalStrings)
michael@0: {
michael@0:     const unsigned N = 1000;
michael@0: 
michael@0:     for (unsigned i = 0; i < N; ++i) {
michael@0:         CHECK(JS_NewExternalString(cx, arr, arrlen, &finalizer1));
michael@0:         CHECK(JS_NewExternalString(cx, arr, arrlen, &finalizer2));
michael@0:     }
michael@0: 
michael@0:     // clear that newborn root
michael@0:     JS_NewUCStringCopyN(cx, arr, arrlen);
michael@0: 
michael@0:     JS_GC(rt);
michael@0: 
michael@0:     // a generous fudge factor to account for strings rooted by conservative gc
michael@0:     const unsigned epsilon = 10;
michael@0: 
michael@0:     CHECK((N - finalized1) < epsilon);
michael@0:     CHECK((N - finalized2) < epsilon);
michael@0: 
michael@0:     return true;
michael@0: }
michael@0: END_TEST(testExternalStrings)