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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/jsapi-tests/testOOM.cpp | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jsapi-tests/testOOM.cpp')
-rw-r--r-- | js/src/jsapi-tests/testOOM.cpp | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testOOM.cpp b/js/src/jsapi-tests/testOOM.cpp new file mode 100644 index 0000000000..4fe895e9e7 --- /dev/null +++ b/js/src/jsapi-tests/testOOM.cpp @@ -0,0 +1,117 @@ +/* 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 "mozilla/DebugOnly.h" + +#include "jsapi-tests/tests.h" + +#include "vm/HelperThreads.h" + +BEGIN_TEST(testOOM) { + JS::RootedValue v(cx, JS::Int32Value(9)); + JS::RootedString jsstr(cx, JS::ToString(cx, v)); + char16_t ch; + if (!JS_GetStringCharAt(cx, jsstr, 0, &ch)) { + return false; + } + MOZ_RELEASE_ASSERT(ch == '9'); + return true; +} + +virtual JSContext* createContext() override { + JSContext* cx = JS_NewContext(0); + if (!cx) { + return nullptr; + } + JS_SetGCParameter(cx, JSGC_MAX_BYTES, (uint32_t)-1); + return cx; +} +END_TEST(testOOM) + +#ifdef DEBUG // js::oom functions are only available in debug builds. + +const uint32_t maxAllocsPerTest = 100; + +# define START_OOM_TEST(name) \ + testName = name; \ + for (bool always : {false, true}) { \ + const char* subTest = always ? "fail always" : "fail once"; \ + printf("Test %s (%s): started: ", testName, subTest); \ + for (oomAfter = 1; oomAfter < maxAllocsPerTest; ++oomAfter) { \ + js::oom::simulator.simulateFailureAfter( \ + js::oom::FailureSimulator::Kind::OOM, oomAfter, \ + js::THREAD_TYPE_MAIN, always) + +# define END_OOM_TEST \ + if (!js::oom::HadSimulatedOOM()) { \ + printf("\nTest %s (%s): finished with %" PRIu64 " allocations\n", \ + testName, subTest, oomAfter - 1); \ + break; \ + } \ + } \ + } \ + js::oom::simulator.reset(); \ + CHECK(oomAfter != maxAllocsPerTest) + +# define MARK_STAR printf("*"); +# define MARK_PLUS printf("+"); +# define MARK_DOT printf("."); + +BEGIN_TEST(testNewContextOOM) { + uninit(); // Get rid of test harness' original JSContext. + + const char* testName; + uint64_t oomAfter; + JSContext* cx; + START_OOM_TEST("new context"); + cx = JS_NewContext(8L * 1024 * 1024); + if (cx) { + MARK_PLUS; + JS_DestroyContext(cx); + } else { + MARK_DOT; + CHECK(!JSRuntime::hasLiveRuntimes()); + } + END_OOM_TEST; + return true; +} +END_TEST(testNewContextOOM) + +BEGIN_TEST(testHelperThreadOOM) { + const char* testName; + uint64_t oomAfter; + START_OOM_TEST("helper thread state"); + + if (js::CreateHelperThreadsState()) { + if (js::EnsureHelperThreadsInitialized()) { + MARK_STAR; + } else { + MARK_PLUS; + } + } else { + MARK_DOT; + } + + // Reset the helper threads to ensure they get re-initalised in following + // iterations + js::DestroyHelperThreadsState(); + + END_OOM_TEST; + + return true; +} + +bool init() override { + JSAPIRuntimeTest::uninit(); // Discard the just-created JSContext. + js::DestroyHelperThreadsState(); // The test creates this state. + return true; +} +void uninit() override { + // Leave things initialized after this test finishes. + js::CreateHelperThreadsState(); +} + +END_TEST(testHelperThreadOOM) + +#endif |