public void TestIsInUse()
        {
            Mock<IAreaDao> areaDaoMock = new Mock<IAreaDao>();
            areaDaoMock.Setup(x => x.IsInUse(It.IsAny<Area>())).Returns(true);

            Area area = new Area();

            IAreaService areaService = new AreaService(areaDaoMock.Object);
            bool isInUse = areaService.IsInUse(area);

            Assert.IsTrue(isInUse);
            areaDaoMock.Verify(x=>x.IsInUse(area), Times.Once);
        }