There's a failure mode we hit quite often where, when we run
the text editor after copying the character, it pops up *behind*
the character page. So let's close the page first. When we click
the 'Copy Character' button a notification that the character was
copied is briefly displayed and if we hit esc while it's visible
we dismiss *that* not the character page, so hit esc twice to be
safe. If we miss dismissing the notification, the 'extra' press
is safe, it doesn't quit the app.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
This PR adds a small test suite to test the Characters applications.
It displays several different groups of characters and then tries
to copy one of the characters and place it into a text editor.
