public Constraint CombineConstraint(Constraint other, System.Linq.Expressions.ExpressionType op)
{
BooleanCombinationConstraint combinedConstraint = new BooleanCombinationConstraint(op);
combinedConstraint.AddConstraint(this);
combinedConstraint.AddConstraint(other);
return combinedConstraint;
}
public void BooleanCombinationConstraint_BuildEmptyExpression()
{
BooleanCombinationConstraint constraint = new BooleanCombinationConstraint(ExpressionType.And);
StringBuilder builder = new StringBuilder();
constraint.BuildExpression(builder);
Assert.AreEqual(" 1 ", builder.ToString());
}
public void BooleanCombinationConstraint_BuildAndExpression()
{
BooleanCombinationConstraint constraint = new BooleanCombinationConstraint(ExpressionType.And);
constraint.AddConstraint(new AtomicConstraint("one=1"));
constraint.AddConstraint(new AtomicConstraint("two=2"));
constraint.AddConstraint(new AtomicConstraint("three=3"));
StringBuilder builder = new StringBuilder();
constraint.BuildExpression(builder);
Assert.AreEqual("( one=1 ) AND ( two=2 ) AND ( three=3 )", builder.ToString());
}
public void BooleanCombinationConstraint_CombineConstraints()
{
BooleanCombinationConstraint baseConstraint = new BooleanCombinationConstraint(ExpressionType.Or);
baseConstraint.AddConstraint(new AtomicConstraint("one=1"));
baseConstraint.AddConstraint(new AtomicConstraint("two=2"));
Constraint combinedConstraint = baseConstraint.CombineConstraint(new AtomicConstraint("three=3"), ExpressionType.Or);
StringBuilder builder = new StringBuilder();
combinedConstraint.BuildExpression(builder);
Assert.AreEqual("( one=1 ) OR ( two=2 ) OR ( three=3 )", builder.ToString());
}
public Constraint CombineConstraint(Constraint other, ExpressionType op)
{
if (op == type)
{
// The operator types match, so we can create a single constraint combining all sub-constraints
BooleanCombinationConstraint newConstraint = new BooleanCombinationConstraint(type);
newConstraint.childConstraints = this.childConstraints;
newConstraint.childConstraints.Add(other);
return newConstraint;
}
else
{
BooleanCombinationConstraint combinedConstraint = new BooleanCombinationConstraint(type);
combinedConstraint.AddConstraint(this);
combinedConstraint.AddConstraint(other);
return combinedConstraint;
}
}