public void V8ScriptEngine_ResourceConstraints_Dual()
{
const int limit = 4 * 1024 * 1024;
const string code = @"x = []; for (i = 0; i < 1024 * 1024; i++) { x.push(x); }";
engine.Execute(code);
engine.CollectGarbage(true);
var usedHeapSize = engine.GetRuntimeHeapInfo().UsedHeapSize;
var constraints = new V8RuntimeConstraints
{
MaxYoungSpaceSize = limit,
MaxOldSpaceSize = limit,
MaxExecutableSize = limit
};
engine.Dispose();
engine = new V8ScriptEngine(constraints);
TestUtil.AssertException<ScriptEngineException>(() =>
{
try
{
engine.Execute(code);
}
catch (ScriptEngineException exception)
{
Assert.IsTrue(exception.IsFatal);
throw;
}
});
engine.CollectGarbage(true);
Assert.IsTrue(usedHeapSize > engine.GetRuntimeHeapInfo().UsedHeapSize);
}
public void BugFix_V8RuntimeConstraintScale()
{
const int maxNewSpaceSize = 16;
const int maxOldSpaceSize = 512;
var constraints = new V8RuntimeConstraints
{
MaxNewSpaceSize = maxNewSpaceSize,
MaxOldSpaceSize = maxOldSpaceSize
};
using (var tempEngine = new V8ScriptEngine(constraints))
{
Assert.AreEqual(Math.PI, tempEngine.Evaluate("Math.PI"));
Assert.AreEqual(Convert.ToUInt64(maxNewSpaceSize * 4 + maxOldSpaceSize), tempEngine.GetRuntimeHeapInfo().HeapSizeLimit / (1024 * 1024));
}
constraints = new V8RuntimeConstraints
{
MaxNewSpaceSize = maxNewSpaceSize * 1024 * 1024,
MaxOldSpaceSize = maxOldSpaceSize * 1024 * 1024
};
using (var tempEngine = new V8ScriptEngine(constraints))
{
Assert.AreEqual(Math.E, tempEngine.Evaluate("Math.E"));
Assert.AreEqual(Convert.ToUInt64(maxNewSpaceSize * 4 + maxOldSpaceSize), tempEngine.GetRuntimeHeapInfo().HeapSizeLimit / (1024 * 1024));
}
}
