public void TestEvaluateOnlyEnd1()
{
var end = new DateTime(2018, 8, 1, 0, 0, 0);
var expression = new ContainsTimestampExpression(new DateTimeLiteral(end), new DateTimeInterval(null, end));
expression.Evaluate(null).Should().BeTrue("because the specified timestamp is equal to end");
}
public void TestEvaluateOnlyEnd3()
{
var end = new DateTime(2018, 8, 1, 0, 0, 0);
var expression = new ContainsTimestampExpression(new DateTimeLiteral(end + TimeSpan.FromTicks(1)), new DateTimeInterval(null, end));
expression.Evaluate(null).Should().BeFalse("because the specified timestamp is greater than end");
}
public void TestEvaluateOnlyStart3()
{
var start = new DateTime(2018, 8, 1, 0, 0, 0);
var expression = new ContainsTimestampExpression(new DateTimeLiteral(start + TimeSpan.FromTicks(1)), new DateTimeInterval(start, null));
expression.Evaluate(null).Should().BeTrue("because the specified timestamp is greater than start");
}
public void TestEvaluateOnlyStart1()
{
var start = new DateTime(2018, 8, 1, 0, 0, 0);
var expression = new ContainsTimestampExpression(new DateTimeLiteral(start), new DateTimeInterval(start, null));
expression.Evaluate(null).Should().BeTrue("because the specified timestamp is equal to start");
}
public void TestEvaluateNullInterval()
{
var expression = new ContainsTimestampExpression(new DateTimeLiteral(DateTime.Now),
new DateTimeInterval(null, null));
expression.Evaluate(null).Should().BeFalse("because nothing can be part of a null interval");
}
public void TestEvaluateNullTimestamp()
{
var expression = new ContainsTimestampExpression(new DateTimeLiteral(null),
new DateTimeIntervalLiteral(SpecialDateTimeInterval.Today));
expression.Evaluate(null).Should().BeFalse("because a null timestamp is not part of any interval");
}
public ILogEntryFilter CreateFilter()
{
//
IExpression <IInterval <DateTime?> > interval = TryCreateInterval();
if (interval == null)
{
return(null);
}
var expression = new ContainsTimestampExpression(new TimestampVariable(), interval);
return(new FilterExpression(expression));
}