68 lines
1.7 KiB
Bash
68 lines
1.7 KiB
Bash
#!/bin/sh
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#
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# Check that the terminal width is detected on startup.
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# Dummy assignments for "shellcheck".
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testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"; workFile2="${workFile2:-.tmp2}"
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# Skip the test if `tmux' is not available.
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if ! command -v tmux >/dev/null 2>&1; then
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echo "test requires \`tmux'"
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exit 2
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fi
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# Skip the test if `tmux' does not have "-C".
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if echo "kill-server" | tmux -C -L pvtest 2>&1 | grep -Fq "tmux: unknown option"; then
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echo "test requires a newer \`tmux'"
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exit 2
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fi
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# Run a progress meter inside a terminal of the given width, and output the
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# longest number of characters seen between "[" and "]".
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#
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runWidthTest () {
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terminalWidth="$1"
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{
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echo "set remain-on-exit on"
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echo "new-session -d"
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echo "resize-window -x ${terminalWidth} -y 5"
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echo "pipe-pane 'cat > ${workFile1}'"
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echo "respawn-pane -k sh -c \"${testSubject} -pSs 1K </dev/zero >/dev/null\""
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sleep 1
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echo "kill-server"
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sleep 1
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} \
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| tmux -C -L pvtest >/dev/null
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tr '\r' '\n' < "${workFile1}" \
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| sed -n 's/^.*\[//;s/\].*$//p' \
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| awk 'BEGIN {m=0} {n=length($0); m=(n>m?n:m)} END {print m}'
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}
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# Perform a test run of the given width and exit on failure. The longest
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# bar found by runWidthTest() should be the width of the terminal minus the
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# "[] 100%" characters, i.e. 7 less.
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#
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widthTest () {
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terminalWidth="$1"
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longestBar=$(runWidthTest "${terminalWidth}")
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if test -z "${longestBar}"; then
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echo "no output from test at width=${terminalWidth}"
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exit 1
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elif ! test "${longestBar}" -eq $((terminalWidth-7)); then
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echo "bar size incorrect (${longestBar}) at width=${terminalWidth})"
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exit 1
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fi
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}
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widthTest 80
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widthTest 120
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widthTest 400
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widthTest 20
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exit 0
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# EOF
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