gistfile1.m

/*
+(BOOL)runLoopUntilTestPassesWithBlock:(__SHTestCaseInternalTestCaseConditional)theBlock withTimeOut:(NSTimeInterval)theTimeout; {
  NSParameterAssert(theBlock);
  NSParameterAssert(theTimeout >= 0);
  NSDate * timeoutDate = [NSDate dateWithTimeIntervalSinceNow:theTimeout];
  
  NSTimeInterval timeoutTime = [timeoutDate timeIntervalSinceReferenceDate];
  NSTimeInterval currentTime = 0.0;
  
  */
  for (currentTime = [NSDate timeIntervalSinceReferenceDate];
       (theBlock() == NO && currentTime < timeoutTime);
       currentTime = [NSDate timeIntervalSinceReferenceDate]) {
    [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0.1]];
  }
  
/*  return currentTime <= timeoutTime;
}
*/