IDisposable not working with InstancePerTestCase

[pepone]

using System;
using System.Buffers;
using NUnit.Framework;

namespace Foo
{
    [FixtureLifeCycle(LifeCycle.InstancePerTestCase)]
    [TestFixture(256)]
    [TestFixture(1024)]
    [Parallelizable(scope: ParallelScope.All)]
    public class FixtureTests : IDisposable
    {
        private byte[] _buffer;

        public FixtureTests(int bufferSize) => _buffer = ArrayPool<byte>.Shared.Rent(bufferSize);

        public void Dispose() => ArrayPool<byte>.Shared.Return(_buffer);

        [TestCase(0)]
        [TestCase(256)]
        public void Foo_Test(int size)
        {
            Assert.AreEqual(size, size);
        }
    }
}

I would expect the above to create and dispose the fixture per test case but it is resulting in an exception from NUnit

Failed Foo_Test(0) [127 ms]
  Error Message:
   System.InvalidOperationException : DisposeFixtureCommand does not apply neither to TestMethod, nor to ParameterizedMethodSuite
  Stack Trace:
     at NUnit.Framework.Guard.OperationValid(Boolean condition, String message)
   at NUnit.Framework.Internal.Commands.DisposeFixtureCommand..ctor(TestCommand innerCommand)
   at NUnit.Framework.Internal.Execution.SimpleWorkItem.MakeTestCommand()
   at NUnit.Framework.Internal.Execution.SimpleWorkItem.PerformWork()

isn't this expected to work this way?

[feryatolcay]

Hi @rprouse
Did you find the problem. I have same problem now and I don't know why?
Thanks

[rprouse]

We haven't got to this yet, sorry.