# a pane can shrink to just its tagline: border-drag the handle to the tag row
# (0 body rows), the gutter box still grabs a move, and dragging back down
# restores the body intact (the hidden pane's pty/vt is never resized)
file w.txt x
start 31 100 -n 3
wait 8000 w.txt
stable 700 20000
# content in pane 0 so the restored body is provably intact
press left 5 9
release left 5 9
stable 400 5000
key i
text echo one; echo two
key enter
key esc
settle 100
stable 400 5000
snap before
# drag pane 0's bottom handle (its last row) up to its tag row: tag-only pane
press left 20 17
drag left 20 3
release left 20 3
motion 40 25
stable 500 8000
snap shrunk
# the shrunk pane's single row is now the pair's resize handle, but the gutter
# box must still win: grab it, preview a move into the right column, abort by
# releasing over the pane itself
press left 1 3
drag left 70 9
stable 400 5000
snap move-preview
drag left 20 3
release left 20 3
stable 400 5000
# re-enlarge: the tag row doubles as the drag handle, pull it back down
press left 20 3
drag left 20 17
release left 20 17
motion 40 25
stable 500 8000
snap restored
# the bottom pane can shrink to ITS tag too: drag past the bottom, clamp holds
press left 20 17
drag left 20 31
release left 20 31
motion 40 25
stable 500 8000
snap bottom-shrunk