public void TestConstructor(string name, double longtitute, double lattitute)
        {
            var info = new IndoorDistributionExcel
            {
                Name       = name,
                Range      = "range",
                SourceName = "source",
                SourceType = "type",
                Longtitute = longtitute,
                Lattitute  = lattitute
            };
            var item = IndoorDistribution.ConstructItem(info);

            Assert.AreEqual(item.Name, name);
            Assert.AreEqual(item.Range, "range");
            Assert.AreEqual(item.SourceName, "source");
            Assert.AreEqual(item.SourceType, "type");
        }