public static void Serialize(SqlTypeCode typeCode, int precision, int scale)
{
var type = new SqlNumericType(typeCode, precision, scale);
var result = BinarySerializeUtil.Serialize(type);
Assert.Equal(type, result);
}
public static void IsInstanceOf(SqlTypeCode typeCode, int?precision, byte?scale, object value, bool expected)
{
var type = new SqlNumericType(typeCode, precision ?? -1, scale ?? -1);
var number = SqlValueUtil.FromObject(value);
Assert.Equal(expected, type.IsInstanceOf(number));
}
public static void CreateNumericType(SqlTypeCode typeCode, int precision, int scale)
{
var type = new SqlNumericType(typeCode, precision, scale);
Assert.NotNull(type);
Assert.Equal(typeCode, type.TypeCode);
Assert.Equal(precision, type.Precision);
Assert.Equal(scale, type.Scale);
Assert.True(type.IsIndexable);
Assert.True(type.IsPrimitive);
Assert.False(type.IsLargeObject);
Assert.False(type.IsReference);
}
public static void CastToNumber(string s, SqlTypeCode typeCode, int precision, int scale)
{
var date = SqlDateTime.Parse(s);
var type = new SqlDateTimeType(SqlTypeCode.DateTime);
var destType = new SqlNumericType(typeCode, precision, scale);
Assert.True(type.CanCastTo(date, destType));
var result = type.Cast(date, destType);
Assert.NotNull(result);
Assert.IsType <SqlNumber>(result);
var value = (SqlNumber)result;
var back = new SqlDateTime((long)value);
Assert.Equal(date, back);
}
private ISqlValue ToNumber(ISqlBinary value, SqlNumericType destType)
{
if (value == null)
{
throw new InvalidCastException();
}
var precision = destType.Precision;
var scale = destType.Scale;
if (precision <= 0)
{
throw new NotSupportedException();
}
if (scale <= 0)
{
scale = 1;
}
// TODO: handle the cases when precision and/or scale are not set
return(new SqlNumber(value.ToArray(), scale, precision));
}
private ISqlValue ToNumeric(SqlNumber number, SqlNumericType destType)
{
// TODO: should we make some checks here?
return(destType.NormalizeValue(number));
}