1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jsapi-tests/testExternalStrings.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,61 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "mozilla/ArrayUtils.h"
1.9 +#include "mozilla/PodOperations.h"
1.10 +
1.11 +#include "jsapi-tests/tests.h"
1.12 +
1.13 +using mozilla::ArrayLength;
1.14 +using mozilla::PodEqual;
1.15 +
1.16 +static const jschar arr[] = {
1.17 + 'h', 'i', ',', 'd', 'o', 'n', '\'', 't', ' ', 'd', 'e', 'l', 'e', 't', 'e', ' ', 'm', 'e', '\0'
1.18 +};
1.19 +static const size_t arrlen = ArrayLength(arr) - 1;
1.20 +
1.21 +static int finalized1 = 0;
1.22 +static int finalized2 = 0;
1.23 +
1.24 +static void
1.25 +finalize_str(const JSStringFinalizer *fin, jschar *chars);
1.26 +
1.27 +static const JSStringFinalizer finalizer1 = { finalize_str };
1.28 +static const JSStringFinalizer finalizer2 = { finalize_str };
1.29 +
1.30 +static void
1.31 +finalize_str(const JSStringFinalizer *fin, jschar *chars)
1.32 +{
1.33 + if (chars && PodEqual(const_cast<const jschar *>(chars), arr, arrlen)) {
1.34 + if (fin == &finalizer1) {
1.35 + ++finalized1;
1.36 + } else if (fin == &finalizer2) {
1.37 + ++finalized2;
1.38 + }
1.39 + }
1.40 +}
1.41 +
1.42 +BEGIN_TEST(testExternalStrings)
1.43 +{
1.44 + const unsigned N = 1000;
1.45 +
1.46 + for (unsigned i = 0; i < N; ++i) {
1.47 + CHECK(JS_NewExternalString(cx, arr, arrlen, &finalizer1));
1.48 + CHECK(JS_NewExternalString(cx, arr, arrlen, &finalizer2));
1.49 + }
1.50 +
1.51 + // clear that newborn root
1.52 + JS_NewUCStringCopyN(cx, arr, arrlen);
1.53 +
1.54 + JS_GC(rt);
1.55 +
1.56 + // a generous fudge factor to account for strings rooted by conservative gc
1.57 + const unsigned epsilon = 10;
1.58 +
1.59 + CHECK((N - finalized1) < epsilon);
1.60 + CHECK((N - finalized2) < epsilon);
1.61 +
1.62 + return true;
1.63 +}
1.64 +END_TEST(testExternalStrings)
