[tester removeAllItemsFromTableView] will remove all items from a UITableView managed by a UITableViewController where the "Edit" button is exposed.

KIFTestActor-TableView.m

@implementation KIFUITestActor (TableView)

- (BOOL)deleteAnyVisibleTableViewCell
{
    UIAccessibilityElement *element = [[UIApplication sharedApplication] accessibilityElementMatchingBlock:^BOOL(UIAccessibilityElement *element) {
        return [element.accessibilityLabel hasPrefix:@"Delete "];
    }];
    if (!element) {
        return NO;
    }
    UIView *view = [UIAccessibilityElement viewContainingAccessibilityElement:element tappable:YES error:NULL];
    if (!view) {
        [tester failWithError:[NSError KIFErrorWithFormat:@"Found an accessibility element named \"%@\" but it was not tappable.", element.accessibilityLabel] stopTest:YES];
    }
    [tester tapAccessibilityElement:element inView:view];
    
    __block UIAccessibilityElement *confirmElement;
    __block UIView *confirmView;
    NSArray *labels = @[@"Delete, ", @"Confirm Deletion for"];
    [self runBlock:^KIFTestStepResult(NSError **error) {
        
        confirmElement = [[UIApplication sharedApplication] accessibilityElementMatchingBlock:^BOOL(UIAccessibilityElement *element) {
            for (NSString *label in labels) {
                if ([element.accessibilityLabel hasPrefix:label]) {
                    return YES;
                }
            }
            return NO;
        }];
        
        KIFTestWaitCondition(confirmElement, error, @"Could not find confirmation button.");
        confirmView = [UIAccessibilityElement viewContainingAccessibilityElement:confirmElement tappable:YES error:error];
        KIFTestWaitCondition(confirmView, error, @"Could not find confirmation button.");
        return KIFTestStepResultSuccess;
    }];
    
    [tester tapAccessibilityElement:confirmElement inView:confirmView];
    [tester waitForAbsenceOfViewWithAccessibilityLabel:confirmElement.accessibilityLabel];
    
    return YES;
}

- (void)removeAllItemsFromTableView
{
    [tester tapViewWithAccessibilityLabel:@"Edit"];
    while ([tester deleteAnyVisibleTableViewCell]);
    [tester tapViewWithAccessibilityLabel:@"Done"];
}

@end