public void MustReturnNewOfTWhenTypeDoesntExist()
{
var doesExistBefore = _sut.TryGet(out AnotherFakeContext newContext);
Assert.False(doesExistBefore);
Assert.Null(newContext);
var c1New = _sut.GetOrNew <AnotherFakeContext>();
var doesExistAfter = _sut.TryGet(out newContext);
Assert.Equal(newContext, c1New);
Assert.True(doesExistAfter);
}