OutOfMemory Exception

Hi all,

 

Glad to be part of the Nunit community, it's an essential development
tool as far as I'm concerned.

 

I have found an issue with a set of NUnit tests that we are running at
the moment that we are getting OutOfMemoryExceptions hapenning when the
tests are run repeatedly in the Nunit GUI (without closing the Nunit
window).  

 

The code in question does Allocate and Free memory but the tests always
pass the first time they are run.

 

We made a smaller project that just does the memory allocation and the
same thing happens although it requires more repeated runs of the unit
tests.  I searched the bugs and the previous posts on this mailing list
and I couldn't find anything so I don't know if its our code or
something about Nunit that maybe we don't understand.

 

The basic test we wrote to catch the issue looks like this

 

        [Test]

        public void ReAllocateAndFreeMem()

        {

            int x = 0;

            while (x < 100)

            {

                m_ptr =
(IntPtr)Marshal.AllocHGlobal((Marshal.UnsafeAddrOfPinnedArrayElement(m_a
rray, 0)));

                Marshal.FreeHGlobal((IntPtr)m_ptr);

                x++;

            }

        }

 

And we have a setup and teardown on the fixture like this

 

        [TestFixtureSetUp]

        public void Create()

        {

            m_ptr =
(IntPtr)Marshal.AllocHGlobal((Marshal.UnsafeAddrOfPinnedArrayElement(m_a
rray, 0)));

        }

 

        [TestFixtureTearDown]

        public void Quit()

        {

           Marshal.FreeHGlobal((IntPtr)m_ptr);

        }

 

Any thoughts?

 

Robbie


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