private void TestIntN(object value, int tdsType, bool nulltest, byte precision = 0, byte scale = 0, bool isPlp = false) { var stream = new TestStream(); var writer = new TdsPackageWriter(stream); var reader = new TdsPackageReader(stream); SetupColMetaData(reader, writer, tdsType, precision, scale, isPlp); var columwriter = new TdsColumnWriter(writer); var columnReader = new TdsColumnReader(reader); object result; if (nulltest) { writer.NewPackage(TdsEnums.MT_RPC); ObjectWriter(columwriter, tdsType, value, nulltest); writer.SendLastMessage(); result = ObjectReader(columnReader, value); Assert.Null(result); } writer.NewPackage(TdsEnums.MT_RPC); ObjectWriter(columwriter, tdsType, value, false); writer.SendLastMessage(); result = ObjectReader(columnReader, value); switch (value) { case Money v: Assert.Equal((decimal)v, result); break; case Money4 v: Assert.Equal((decimal)v, result); break; case SqlDate v: Assert.Equal((DateTime)v, result); break; case SqlDateTime2 v: Assert.Equal((DateTime)v, result); break; case SqlDateTime4 v: Assert.Equal((DateTime)v, result); break; case SqlImage v: Assert.Equal((byte[])v, result); break; case SqlUnicode v: Assert.Equal((string)v, result); break; case SqlXml v: Assert.Equal((string)v, result); break; case SqlVariant v: switch (v.Value) { case bool b: Assert.Equal(b, result); break; case byte b: Assert.Equal(b, result); break; case short b: Assert.Equal(b, result); break; case int b: Assert.Equal(b, result); break; case long b: Assert.Equal(b, result); break; case float b: Assert.Equal(b, result); break; case double b: Assert.Equal(b, result); break; case DateTime b: Assert.Equal(b, result); break; case Guid b: Assert.Equal(b, result); break; case decimal b: Assert.Equal(b, result); break; case byte[] b: Assert.Equal(b, result); break; case string b: Assert.Equal(b, result); break; case TimeSpan b: Assert.Equal(b, result); break; case DateTimeOffset b: Assert.Equal(b, result); break; default: Assert.False(true); break; } break; default: Assert.Equal(value, result); break; } Assert.Equal(reader.GetReadEndPos(), reader.GetReadPos()); if (!new[] { TdsEnums.SQLBIGBINARY, TdsEnums.SQLBIGVARBINARY, TdsEnums.SQLBIGVARCHAR, TdsEnums.SQLBIGCHAR, TdsEnums.SQLTEXT, TdsEnums.SQLNVARCHAR, TdsEnums.SQLNTEXT, TdsEnums.SQLNCHAR, TdsEnums.SQLXMLTYPE, TdsEnums.SQLIMAGE, }.Contains(tdsType) && !(value is SqlVariant v1 && (v1.Value is string s || v1.Value is byte[]))) { Assert.InRange(reader.GetReadPos() - 8, 0, TdsEnums.MaxSizeSqlValue); } }