alcamla

import UIKit

// Detect if the app is running unit tests.
// Note this only detects unit tests, not UI tests.
func isRunningUnitTests() -> Bool {
    let env = NSProcessInfo.processInfo().environment
    if let injectBundle = env["XCInjectBundle"] {
        return NSString(string: injectBundle).pathExtension == "xctest"
    }
    return false

alcamla

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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alcamla

#import <UIKit/UIKit.h>

@interface UIBezierPath (forEachElement)

- (void)forEachElement:(void (^)(CGPathElement const *element))block;

@end