public void SingleSource_OperatorPrecedence()
{
var target = new FilterFuncExpression(_BoolFilterFunc);
var filterFunc1 = target.FromFilter("bool:false+bool:true,bool:true");
Assert.IsTrue(filterFunc1(null));
var filterFunc2 = target.FromFilter("bool:true,bool:true+bool:false");
Assert.IsTrue(filterFunc2(null));
}
public void SingleSource_NotOperator()
{
var target = new FilterFuncExpression(_BoolFilterFunc);
var filterFunc = target.FromFilter("!bool:true");
Assert.IsFalse(filterFunc(null));
}
public void SingleSource()
{
Func <IIndexer, bool> expectedFunc1 = _ => throw TestExceptions.UnexpectedInvocation;
Func <IIndexer, bool> expectedFunc2 = _ => throw TestExceptions.UnexpectedInvocation;
var target = new FilterFuncExpression(
new FilterFuncComponentStub("f1", _ => expectedFunc1),
new FilterFuncComponentStub("f2", _ => expectedFunc2)
);
var actualFunc1 = target.FromFilter("f1:args");
Assert.AreSame(expectedFunc1, actualFunc1);
var actualFunc2 = target.FromFilter("f2:args");
Assert.AreSame(expectedFunc2, actualFunc2);
var actualFunc3 = target.FromFilter("f3:args");
Assert.IsNull(actualFunc3);
}
public static bool TryParse(string source, out Func <IIndexer, bool> func)
{
func = Expression.FromFilter(source);
return(func != null);
}