mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-06-09 11:29:39 +00:00
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/DebugOnly.h"
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#include "jsapi-tests/tests.h"
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BEGIN_TEST(testOOM)
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{
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JS::RootedValue v(cx, JS::Int32Value(9));
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JS::RootedString jsstr(cx, JS::ToString(cx, v));
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char16_t ch;
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if (!JS_GetStringCharAt(cx, jsstr, 0, &ch))
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return false;
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MOZ_RELEASE_ASSERT(ch == '9');
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return true;
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}
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virtual JSRuntime * createRuntime() override
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{
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JSRuntime* rt = JS_NewRuntime(0);
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if (!rt)
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return nullptr;
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JS_SetGCParameter(rt, JSGC_MAX_BYTES, (uint32_t)-1);
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setNativeStackQuota(rt);
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return rt;
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}
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END_TEST(testOOM)
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#ifdef DEBUG // OOM_maxAllocations is only available in debug builds.
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const uint32_t maxAllocsPerTest = 100;
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#define START_OOM_TEST(name) \
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testName = name; \
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printf("Test %s: started\n", testName); \
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for (oomAfter = 1; oomAfter < maxAllocsPerTest; ++oomAfter) { \
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setOOMAfter(oomAfter)
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#define OOM_TEST_FINISHED \
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{ \
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printf("Test %s: finished with %d allocations\n", \
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testName, oomAfter - 1); \
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break; \
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}
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#define END_OOM_TEST \
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} \
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cancelOOMAfter(); \
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CHECK(oomAfter != maxAllocsPerTest)
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BEGIN_TEST(testNewRuntime)
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{
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uninit(); // Get rid of test harness' original JSRuntime.
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JSRuntime* rt;
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START_OOM_TEST("new runtime");
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rt = JS_NewRuntime(8L * 1024 * 1024);
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if (rt)
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OOM_TEST_FINISHED;
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END_OOM_TEST;
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JS_DestroyRuntime(rt);
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return true;
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}
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const char* testName;
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uint32_t oomAfter;
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void
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setOOMAfter(uint32_t numAllocs)
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{
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if (uint64_t(OOM_counter) + numAllocs >= UINT32_MAX)
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MOZ_CRASH("Can't set maxAllocations - out of range");
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OOM_maxAllocations = OOM_counter + numAllocs;
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}
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void
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cancelOOMAfter()
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{
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OOM_maxAllocations = UINT32_MAX;
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}
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END_TEST(testNewRuntime)
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#endif
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