public async Task RegisterClient_RegisterNewClient_ReturnsTrue(Client client)
        {
            // Arrange
            IClientEntityService service = ClientEntityServiceHelper.GetMock();

            // Act
            IDomainResult <bool> result = await service.RegisterAsync(client);

            // Assert
            Assert.True(result.Data);
        }
 internal static IClientApplication GetMock()
 {
     return(Substitute.For <ClientApplication>(ClientEntityServiceHelper.GetMock()));
 }