Calabash Backdoor Workaround for missing shake gesture

AppDelegate+Calabash.m

//
//  AppDelegate+Calabash.m
//
//  Only loaded for calabash target (where preprocesser has CALABASH=1)

#import "AppDelegate+Calabash.h"

@implementation AppDelegate (Calabash)

- (NSString *)calabashBackdoor:(NSString *)command {
  if ([command isEqualToString:@"shake"]) {
    UIEvent *m = [[UIEvent alloc] init];
    [[UIApplication sharedApplication] sendEvent:m];
    [[[UIApplication sharedApplication] keyWindow] motionBegan:UIEventSubtypeMotionShake withEvent:m];
    [[[UIApplication sharedApplication] keyWindow] motionEnded:UIEventSubtypeMotionShake withEvent:m];
  } else {
    SEL selector = NSSelectorFromString(command);
    if ([self respondsToSelector:selector]) {
      DDLogInfo(@"Sending backdoor calabash command: %@", command);
      [self performSelector:@selector(selector) withObject:nil];
    } else {
      DDLogWarn(@"Unrecognised backdoor calabash command: '%@'. Skipping.", command);
    }
  }

  return command;
}

@end

AppDelegate.m

//...
#import "AppDelegate.h"
#if CALABASH
// Calabash target has a preprocessor set for 'CALABASH=1' in both debug + release
#import "AppDelegate+Calabash.h" // Calabash helpers
#endif
//...

calabash_test_file.rb

# Trigger the backdoor for shaking device
backdoor("calabashBackdoor:", "shake")

@tommeier What would be

import "AppDelegate+Calabash.h" ?