public void HasUnplacedHolders()
{
SqlPredicate p;
p = new SqlPredicate("@PH");
Assert.That(p.HasUnplacedHolders(), Is.True);
p.Place("PH", "'abc' <= 'abcd'");
Assert.That(p.HasUnplacedHolders(), Is.False);
p = new SqlPredicate("@PH1 And @PH2");
p.Place("PH1", "x = +100");
Assert.That(p.HasUnplacedHolders(), Is.True);
p.Place("PH2", "y = -9");
Assert.That(p.HasUnplacedHolders(), Is.False);
p = new SqlPredicate("@PH AND @PH");
p.Place("PH", "'abc' <= 'abcd'");
Assert.That(p.HasUnplacedHolders(), Is.False);
p.Place("PH", "'abc' <= 'abcd'");
Assert.That(p.HasUnplacedHolders(), Is.False);
}
public void Empty()
{
SqlPredicate p = new SqlPredicate();
Assert.That(p.And(p).ToString(), Is.EqualTo(""));
Assert.That(p.Clone().ToString(), Is.EqualTo(""));
Assert.That(p.GetAllPlaceHolders(), Is.EqualTo(new string[] { }));
Assert.That(p.HasUnplacedHolder("T"), Is.False);
Assert.That(p.HasUnplacedHolders(), Is.False);
Assert.That(p.IsEmpty, Is.True);
Assert.That(p.IsPlaceHolderOnly, Is.False);
p.Place("PH", "a=1");
Assert.That(p.ToString(), Is.EqualTo(""));
}