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Getting Test Failure due to UITableViewWrapperView overlapping UIImageView #40
Description
I am getting the following test failure while layout testing my View Controller:
failed - Bottom right corner of <UITableViewWrapperView: 0x7f8b9f1aca00; frame = (0 0; 375 559); gestureRecognizers = <NSArray: 0x608000251d90>; layer = <CALayer: 0x6080002311c0>; contentOffset: {0, 0}; contentSize: {375, 559}> overlaps upper left corner of <UIImageView: 0x7f8b9d75c260; frame = (3 553.5; 369 2.5); alpha = 0; opaque = NO; autoresize = TM; userInteractionEnabled = NO; layer = <CALayer: 0x608000230ee0>>. If this is intentional, you should add one of the views to viewsAllowingOverlap.
However, my ViewController does not have any UIImageView elements. Do I need to add table view to viewClassesAllowingSubviewErrors?
Activity
drumnkyle commentedon Sep 13, 2017
You shouldn't need to do that. I would recommend using the view debugger to inspect your view controller and find where the UIImageView is in your hierarchy. It could be in a UINavigationBar or something. I haven't seen any issues with regular UITableView.
SaketGupte commentedon Sep 15, 2017
View Debugging revealed that UIImageView in the failure log posted above is vertical scroll indicator of UITableView. As soon as I disabled horizontal and vertical scroll indicator that failure stopped occuring. Apart from that I have these two test failures as well:
failed - Bottom right corner of <UITableViewWrapperView: 0x7fc0fd00c800; frame = (0 0; 375 577); gestureRecognizers = <NSArray: 0x600000244740>; layer = <CALayer: 0x600000222c20>; contentOffset: {0, 0}; contentSize: {375, 577}> overlaps upper left corner of <UIView: 0x7fc0fc518010; frame = (0 152; 375 0); layer = <CALayer: 0x608000427200>>. If this is intentional, you should add one of the views to viewsAllowingOverlap.
The view in above log is the footer view for tableView .(In my view Controller I have the following piece of code:
tableView.tableFooterView = UIView()
)
failed - Right side extends past superview for <_UITableViewCellSeparatorView: 0x7fc0fc604ce0; frame = (15 169.5; 487 0.5); layer = <CALayer: 0x6000002226c0>> (superview: <MovieWebService.CastDetailTableViewCell: 0x7fc0fd038600; baseClass = UITableViewCell; frame = (0 0; 375 152); clipsToBounds = YES; autoresize = W; layer = <CALayer: 0x6000002230c0>>) If this is intentional, you should add the subview to viewsAllowingOverlap.
This is even though I have set separator to none is UITableView.
Also I tried adding [UITableView class] to viewClassesAllowingSubviewErrors in resetDefaults method in LYTConfig.m. After that all these failures stopped occuring.
Do you think this is a valid approach? Should UITableView be added to that list of default classes allowing subviewErrors?
drumnkyle commentedon Sep 26, 2017
I will have to investigate to see what's going on and if maybe we just hadn't tested
UITableViewwith these kinds of cases. The workaround you mentioned seems like a valid approach. I would just ensure you are testing each of your cells individually. It may be that we never tested theUITableViewitself because usually you should be testing the individual cells themselves. Testing an entire UITableView is less useful. LayoutTests are supposed to be closer to unit tests.