public void IsClientHasStockTypeTest()
        {
            // Arrange
            var blockOfSharesRepositoryMock = Substitute.For <IBlockOfSharesRepository>();

            var sut = new BlockOfSharesManager(blockOfSharesRepositoryMock);

            int clientID = 2;
            int shareID  = 3;

            // Act
            sut.IsClientHasStockType(clientID, shareID);

            // Asserts
            blockOfSharesRepositoryMock.Received(1).IsClientHasShareType(Arg.Is <int>(clientID), Arg.Is <int>(shareID));
        }