This class represents a single Boolean expression. NSSpecifierTest is initialized with the method initWithObjectSpecifier:comparisonOperator:testObject:. This method will initialize the specifier test to compare testObject: with the object specifier by the ...ObjectSpecifier: parameter; the comparison is made using the indicated comparisonOperator:, which is a constant of type NSTestComparisonOperation.

@interface NSSpecifierTest : NSScriptWhoseTest
// Initializers
- (id)initWithObjectSpecifier:(NSScriptObjectSpecifier *)obj1 comparisonOperator:(NSTestComparisonOperation)compOp testObject:(id)obj2;