tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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testSABAccounting.cpp (931B)

      1 #include "builtin/TestingFunctions.h"
      2 #include "js/SharedArrayBuffer.h"
      3 #include "jsapi-tests/tests.h"
      4 
      5 BEGIN_TEST(testSABAccounting) {
      6  // Purge what we can
      7  JS::PrepareForFullGC(cx);
      8  NonIncrementalGC(cx, JS::GCOptions::Shrink, JS::GCReason::API);
      9 
     10  // Self-hosting and chrome code should not use SABs, or the point of this
     11  // predicate is completely lost.
     12  CHECK(!JS::ContainsSharedArrayBuffer(cx));
     13 
     14  JS::RootedObject obj(cx), obj2(cx);
     15  CHECK(obj = JS::NewSharedArrayBuffer(cx, 4096));
     16  CHECK(JS::ContainsSharedArrayBuffer(cx));
     17  CHECK(obj2 = JS::NewSharedArrayBuffer(cx, 4096));
     18  CHECK(JS::ContainsSharedArrayBuffer(cx));
     19 
     20  // Discard those objects again.
     21  obj = nullptr;
     22  obj2 = nullptr;
     23  JS::PrepareForFullGC(cx);
     24  NonIncrementalGC(cx, JS::GCOptions::Shrink, JS::GCReason::API);
     25 
     26  // Should be back to base state.
     27  CHECK(!JS::ContainsSharedArrayBuffer(cx));
     28 
     29  return true;
     30 }
     31 END_TEST(testSABAccounting)