public void AndOrCombinations()
{
var x = Expression.Parameter(typeof(char), "x");
var p1 = new PredicateExpression { Predicate = Expression.Equal(x, Expression.Constant('x')) };
var p2 = new PredicateExpression { Predicate = Expression.Equal(x, Expression.Constant('y')) };
var p = p1.And(p2);
var p3 = new PredicateExpression { Predicate = Expression.Equal(x, Expression.Constant('z')) };
p = p.And(p3);
var andp = (AndExpression)p;
foreach (var component in andp.Members)
{
Assert.IsInstanceOf<PredicateExpression>(component);
}
p = p1.Or(p2).Or(p3);
var orp = (OrExpression)p;
foreach (var component in orp.Members)
{
Assert.IsInstanceOf<PredicateExpression>(component);
}
}