private void TestCastToString(DateTime?x, String expectedValue)
{
_DateTime column1 = x;
_String expr = column1.CastToString();
var dbExpr = (DbCastExpression)expr.DbExpression;
dbExpr.Verify(column1, typeof(DateTime?), typeof(String));
expr.VerifyEval(expectedValue);
}
private void TestFromString(String x, DateTime?expectedValue)
{
_String column1 = x;
_DateTime expr = (_DateTime)column1;
var dbExpr = (DbCastExpression)expr.DbExpression;
dbExpr.Verify(column1, typeof(String), typeof(DateTime?));
expr.VerifyEval(expectedValue);
}
private void TestLessThan(DateTime?x, DateTime?y, bool?expectedValue)
{
_DateTime column1 = x;
_DateTime column2 = y;
var expr = column1 < column2;
var dbExpr = (DbBinaryExpression)expr.DbExpression;
dbExpr.Verify(BinaryExpressionKind.LessThan, column1, column2);
expr.VerifyEval(expectedValue);
}
private void TestGreaterThanOrEqual(DateTime?x, DateTime?y, bool?expectedValue)
{
_DateTime column1 = x;
_DateTime column2 = y;
var expr = column1 >= column2;
var dbExpr = (DbBinaryExpression)expr.DbExpression;
dbExpr.Verify(BinaryExpressionKind.GreaterThanOrEqual, column1, column2);
expr.VerifyEval(expectedValue);
}
public void Column_Default_function()
{
var dateTime = new _DateTime();
dateTime.SetDefault(_DateTime.Now(), null, null);
var defaultValue = dateTime.GetDefault().Value;
var span = DateTime.Now - defaultValue;
Assert.IsTrue(span.Value.Seconds < 1);
}
private static void TestConst(DateTime?x)
{
_DateTime column = _DateTime.Const(x);
column.VerifyConst(x);
}
private static void TestImplicit(DateTime?x)
{
_DateTime column = x;
column.VerifyParam(x);
}
/// <summary>Creates a column of parameter expression.</summary>
/// <param name="x">The value of the parameter expression.</param>
/// <param name="sourceColumn">The value which will be passed to <see cref="DbParamExpression.SourceColumn"/>.</param>
/// <returns>The column of parameter expression.</returns>
public static _DateTime Param(DateTime?x, _DateTime sourceColumn = null)
{
return(new ParamExpression <DateTime?>(x, sourceColumn).MakeColumn <_DateTime>());
}
