public async Task GetProjectName_UnKnownInvitationId_ShouldReturnNull()
        {
            using (var context = new IPOContext(_dbContextOptions, _plantProvider, _eventDispatcher, _currentUserProvider))
            {
                // Arrange
                var dut = new InvitationHelper(context);

                // Act
                var projectName = await dut.GetProjectNameAsync(0);

                // Assert
                Assert.IsNull(projectName);
            }
        }