//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test void shouldRegisterConcurrentAllocationsAndDeallocations() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
internal virtual void ShouldRegisterConcurrentAllocationsAndDeallocations()
{
// given
ThreadSafePeakMemoryAllocationTracker tracker = new ThreadSafePeakMemoryAllocationTracker(GlobalMemoryTracker.Instance);
Race race = new Race();
race.AddContestants(10, () =>
{
for (int i = 1; i < 100; i++)
{
tracker.Allocated(i);
assertThat(tracker.UsedDirectMemory(), greaterThan(0L));
}
for (int i = 1; i < 100; i++)
{
assertThat(tracker.UsedDirectMemory(), greaterThan(0L));
tracker.Deallocated(i);
}
}, 1);
// when
race.Go();
// then
assertEquals(0, tracker.UsedDirectMemory());
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test void shouldRegisterPeakMemoryUsage() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
internal virtual void ShouldRegisterPeakMemoryUsage()
{
// given
ThreadSafePeakMemoryAllocationTracker tracker = new ThreadSafePeakMemoryAllocationTracker(GlobalMemoryTracker.Instance);
int threads = 200;
long[] allocations = new long[threads];
ThreadLocalRandom random = ThreadLocalRandom.current();
long sum = 0;
for (int i = 0; i < allocations.Length; i++)
{
allocations[i] = random.Next(1, 10_000);
sum += allocations[i];
}
// when
Race race = new Race();
for (int i = 0; i < threads; i++)
{
int id = i;
race.AddContestant(() => tracker.allocated(allocations[id]));
}
race.Go();
long peakAfterAllocation = tracker.PeakMemoryUsage();
LongStream.of(allocations).forEach(tracker.deallocated);
long peakAfterDeallocation = tracker.PeakMemoryUsage();
LongStream.of(allocations).forEach(tracker.allocated);
tracker.Allocated(10); // <-- 10 more than previous peak
long peakAfterHigherReallocation = tracker.PeakMemoryUsage();
LongStream.of(allocations).forEach(tracker.deallocated);
tracker.Deallocated(10);
long peakAfterFinalDeallocation = tracker.PeakMemoryUsage();
// then
assertEquals(sum, peakAfterAllocation);
assertEquals(sum, peakAfterDeallocation);
assertEquals(sum + 10, peakAfterHigherReallocation);
assertEquals(sum + 10, peakAfterFinalDeallocation);
}