a helper that uses reflection to get a nsnumber object from from an (optional) Int/Bool/Double/Float property. needed in unit testing

ReflectionHelpers.swift

import Foundation

@objc
class ReflectionHelpers : NSObject {
    class func getNSNumberForProperty(cls: AnyObject!, name: String!) -> NSNumber! {
        let m = Mirror(reflecting: cls)
        let child1 = m.descendant(name)
        
        if(child1 != nil) {
            //bool
            if let b = child1  as? Bool {
                return NSNumber(bool: b)
            }
            if let any = child1, let maybeB = Mirror(reflecting: any).descendant("Some") as? Bool {
                if let b = (maybeB as Bool?) {
                    return NSNumber(bool: b)
                }
            }
            
            //Int
            if let b = child1  as? Int {
                return NSNumber(integer: b)
            }
            if let any = child1, let maybeB = Mirror(reflecting: any).descendant("Some") as? Int {
                if let b = (maybeB as Int?) {
                    return NSNumber(integer: b)
                }
            }
            
            //Float
            if let b = child1  as? Float {
                return NSNumber(float: b)
            }
            if let any = child1, let maybeB = Mirror(reflecting: any).descendant("Some") as? Float {
                if let b = (maybeB as Float?) {
                    return NSNumber(float: b)
                }
            }
            
            //Double
            if let b = child1  as? Double {
                return NSNumber(double: b)
            }
            if let any = child1, let maybeB = Mirror(reflecting: any).descendant("Some") as? Double {
                if let b = (maybeB as Double?) {
                    return NSNumber(double: b)
                }
            }
        }
        
        return nil
    }
}