In one tab of e.g. Konsole execute:
touch /tmp/really_empty.zip
ln -s /dev/zero /tmp/too_big.zip
zip /tmp/no_access.zip /etc/fstab
chmod a-rwx /tmp/no_access.zip
krusader -d
Press F3 to try to view a compressed file
See in the Konsole tab:
[...]-debug default PanelViewer::openFile(KFileItem)::<lambda@281 # openFile completed: ' QUrl("file:///[...]") '
Close the window of the viewer.
Press F3 to try to view /tmp/really_empty.zip
See in the Konsole tab:
[...]-debug default PanelViewer::openFile(KFileItem)::<lambda@275 # openFile canceled: ' QUrl("file:///tmp/really_empty.zip") '
Close the window of the viewer.
Press F3 to try to view /tmp/too_big.zip
See a viewer window with the message:
The file /dev/zero could not be loaded, as it was not possible to read from it.
Check if you have read access to this file.
[Try Again] [Close]
press the "Try Again" button. See in the Konsole tab:
[...]-debug default PanelViewer::openFile(KFileItem)::<lambda@275 # openFile canceled: ' QUrl("file:///tmp/too_big.zip") '
Close the window of the viewer.
Press F3 to try to view /tmp/no_access.zip
See a "No permissions to view this file" message.
Try F3 to view other kind of files like text, jpg, html, etc.