js/src/jsapi-tests/testSABAccounting.cpp

   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)