public static void SerializeExplicit(SqlTypeCode typeCode)
{
var type = new SqlDateTimeType(typeCode);
var result = SqlTypeUtil.Serialize(type);
Assert.Equal(type, result);
}
public static void GetValidDateTimeType(SqlTypeCode typeCode) {
var type = new SqlDateTimeType(typeCode);
Assert.Equal(typeCode, type.TypeCode);
Assert.True(type.IsIndexable);
Assert.True(type.IsPrimitive);
Assert.False(type.IsLargeObject);
Assert.False(type.IsReference);
}
public static void GetString(SqlTypeCode typeCode, string expected)
{
var type = new SqlDateTimeType(typeCode);
var s = type.ToString();
Assert.Equal(expected, s);
}
private static void BinaryWithInterval(Func<SqlDateTimeType, Func<ISqlValue, ISqlValue, ISqlValue>> selector, string date, string offset, string expected) {
var type = new SqlDateTimeType(SqlTypeCode.DateTime);
var sqlDate = SqlDateTime.Parse(date);
var dts = SqlDayToSecond.Parse(offset);
var op = selector(type);
var result = op(sqlDate, dts);
var expectedResult = SqlDateTime.Parse(expected);
Assert.Equal(expectedResult, result);
}
private static void Binary(Func<SqlDateTimeType, Func<ISqlValue, ISqlValue, SqlBoolean>> selector, string date1, string date2, bool expected) {
var type = new SqlDateTimeType(SqlTypeCode.DateTime);
var sqlDate1 = SqlDateTime.Parse(date1);
var sqlDate2 = SqlDateTime.Parse(date2);
var op = selector(type);
var result = op(sqlDate1, sqlDate2);
var expectedResult = (SqlBoolean) expected;
Assert.Equal(expectedResult, result);
}
private static void BinaryWithInterval(Func<SqlDateTimeType, Func<ISqlValue, ISqlValue, ISqlValue>> selector, string date, int months, string expected)
{
var type = new SqlDateTimeType(SqlTypeCode.DateTime);
var sqlDate = SqlDateTime.Parse(date);
var ytm = new SqlYearToMonth(months);
var op = selector(type);
var result = op(sqlDate, ytm);
var expectedResult = SqlDateTime.Parse(expected);
Assert.Equal(expectedResult, result);
}
public static void CastToString(string s, SqlTypeCode typeCode, SqlTypeCode destTypeCode, int maxSize, string expected) {
var date = SqlDateTime.Parse(s);
var type = new SqlDateTimeType(typeCode);
var destType = new SqlCharacterType(destTypeCode, maxSize, null);
Assert.True(type.CanCastTo(date, destType));
var result = type.Cast(date, destType);
Assert.NotNull(result);
Assert.IsType<SqlString>(result);
Assert.Equal(expected, (SqlString) result);
}
public static void CastToDateTime(string s, SqlTypeCode destTypeCode, string expected) {
var date = SqlDateTime.Parse(s);
var type = new SqlDateTimeType(SqlTypeCode.DateTime);
var destType = new SqlDateTimeType(destTypeCode);
Assert.True(type.CanCastTo(date, destType));
var result = type.Cast(date, destType);
Assert.NotNull(result);
Assert.IsType<SqlDateTime>(result);
var expectedResult = SqlDateTime.Parse(expected);
Assert.Equal(expectedResult, result);
}
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);
}
public static void CastToDate(string s, SqlTypeCode typeCode)
{
var type = new SqlBinaryType(SqlTypeCode.Binary);
var date = SqlDateTime.Parse(s);
var destType = new SqlDateTimeType(typeCode);
var bytes = date.ToByteArray();
var binary = new SqlBinary(bytes);
Assert.True(type.CanCastTo(binary, destType));
var result = type.Cast(binary, destType);
Assert.NotNull(result);
Assert.IsType <SqlDateTime>(result);
Assert.Equal(date, (SqlDateTime)result);
}
public static SqlType Deserialize(BinaryReader reader, ISqlTypeResolver typeResolver)
{
var typeCode = (SqlTypeCode)reader.ReadByte();
if (SqlBooleanType.IsBooleanType(typeCode))
{
return(PrimitiveTypes.Boolean(typeCode));
}
if (SqlDateTimeType.IsDateType(typeCode))
{
return(PrimitiveTypes.DateTime(typeCode));
}
if (typeCode == SqlTypeCode.DayToSecond)
{
return(PrimitiveTypes.DayToSecond());
}
if (typeCode == SqlTypeCode.YearToMonth)
{
return(PrimitiveTypes.YearToMonth());
}
if (SqlCharacterType.IsStringType(typeCode))
{
var maxSize = reader.ReadInt32();
CultureInfo locale = null;
var hasLocale = reader.ReadByte() == 1;
if (hasLocale)
{
var name = reader.ReadString();
locale = new CultureInfo(name);
}
return(PrimitiveTypes.String(typeCode, maxSize, locale));
}
if (SqlNumericType.IsNumericType(typeCode))
{
var size = reader.ReadInt32();
var scale = reader.ReadInt32();
return(PrimitiveTypes.Numeric(typeCode, size, scale));
}
if (SqlBinaryType.IsBinaryType(typeCode))
{
var size = reader.ReadInt32();
return(PrimitiveTypes.Binary(typeCode, size));
}
if (typeCode == SqlTypeCode.Type)
{
if (typeResolver == null)
{
throw new NotSupportedException("User-Defined types require a resolver context.");
}
// TODO: support type arguments
var typeName = reader.ReadString();
return(typeResolver.Resolve(new SqlTypeResolveInfo(typeName)));
}
/*
* TODO:
* if (typeCode == SqlTypeCode.QueryPlan)
* return new SqlQueryType();
*/
if (typeCode == SqlTypeCode.Array)
{
var size = reader.ReadInt32();
return(new SqlArrayType(size));
}
throw new NotSupportedException($"The type code '{typeCode}' does not support deserialization");
}
private ISqlValue ToDateTime(SqlDateTime date, SqlDateTimeType destType)
{
return(destType.NormalizeValue(date));
}