fish-shell/tests/checks/tmux-signal-multiline-prompt.fish

#RUN: %fish %s
#REQUIRES: command -v tmux && ! tmux -V | grep -qE '^tmux 3\.[0123][a-z]*($|[.-])'

isolated-tmux-start

isolated-tmux send-keys '
    function fish_prompt
        printf "prompt-line-1\\nprompt-line-2> "
        commandline -f repaint
    end
' Enter
isolated-tmux send-keys C-l \
    ': 1' Enter \
    ': 3' Enter \
    ': 5' Enter
tmux-sleep

# Screen looks like

# [y=0] prompt-line-1
# [y=1] prompt-line-2> : 1
# [y=2] prompt-line-1
# [y=3] prompt-line-2> : 3
# [y=4] prompt-line-1
# [y=5] prompt-line-2> : 5
# [y=6] prompt-line-1
# [y=7] prompt-line-2>

isolated-tmux copy-mode
isolated-tmux send-keys -X previous-prompt
isolated-tmux send-keys -X previous-prompt
tmux-sleep
isolated-tmux display-message -p '#{copy_cursor_y} #{copy_cursor_line}'
# CHECK: {{[46]}} prompt-line-1