在iOS中模拟方向更改以进行测试

+ (KIFTestSteP*) stepToInterfaceOrientation: (UIInterfaceOrientation) toInterfaceOrientation {

    NSString* orientation = UIInterfaceOrientationIsLandscape(toInterfaceOrientation) ? @"Landscape" : @"PorTrait";
        return [KIFTestStep stepWithDescription: [NSString StringWithFormat: @"Rotate to orientation %@",orientation]
                             executionBlock: ^KIFTestStepResult(KIFTestStep *step,NSError *__autoreleasing *error) {
                                 if( [UIApplication sharedApplication].statusBarOrientation != toInterfaceOrientation ) {
                                     UIDevice* device = [UIDevice currentDevice];
                                     SEL message = NSSELEctorFromString(@"setOrientation:");

                                     if( [device respondsToSELEctor: message] ) {
                                         NSMethodSignature* signature = [UIDevice instanceMethodSignatureForSELEctor: message];
                                         NSInvocation* invocation = [NSInvocation invocationWithMethodSignature: signature];
                                         [invocation setTarget: device];
                                         [invocation setSELEctor: message];
                                         [invocation setArgument: &toInterfaceOrientation aTindex: 2];
                                         [invocation invoke];
                                     }
                                 }

                                 return KIFTestStepResultsuccess;
                             }];
}

注意：将设备平放在桌面上,或者加速度计更新会将视图旋转回来.