System.Data.Tests.DataSetTest2.ReadXmlSchema_ByXmlReader C# (CSharp) Метод

        public void ReadXmlSchema_ByXmlReader()
        {
            DataSet ds1 = new DataSet();
            ds1.Tables.Add(DataProvider.CreateParentDataTable());
            ds1.Tables.Add(DataProvider.CreateChildDataTable());

            StringWriter sw = new StringWriter();
            XmlTextWriter xmlTW = new XmlTextWriter(sw);
            //write xml file, schema only
            ds1.WriteXmlSchema(xmlTW);
            xmlTW.Flush();

            StringReader sr = new StringReader(sw.ToString());
            XmlTextReader xmlTR = new XmlTextReader(sr);

            //copy both data and schema
            DataSet ds2 = new DataSet();
            ds2.ReadXmlSchema(xmlTR);

            //check xml schema
            // ReadXmlSchema - Tables count
            Assert.Equal(ds2.Tables.Count, ds1.Tables.Count);

            // ReadXmlSchema - Tables 0 Col count
            Assert.Equal(ds1.Tables[0].Columns.Count, ds2.Tables[0].Columns.Count);

            // ReadXmlSchema - Tables 1 Col count
            Assert.Equal(ds1.Tables[1].Columns.Count, ds2.Tables[1].Columns.Count);

            //check some colummns types
            // ReadXmlSchema - Tables 0 Col type
            Assert.Equal(ds1.Tables[0].Columns[0].GetType(), ds2.Tables[0].Columns[0].GetType());

            // ReadXmlSchema - Tables 1 Col type
            Assert.Equal(ds1.Tables[1].Columns[3].GetType(), ds2.Tables[1].Columns[3].GetType());

            //check that no data exists
            // ReadXmlSchema - Table 1 row count
            Assert.Equal(0, ds2.Tables[0].Rows.Count);

            // ReadXmlSchema - Table 2 row count
            Assert.Equal(0, ds2.Tables[1].Rows.Count);
        }