| #!/bin/sh -eu |
| |
| # output width |
| if "$1" --help | grep -v 'default:' | grep -E -q '.{80}.'; then |
| echo "$(basename "$1") --help output is too wide:" |
| "$1" --help | awk 'length > 80' | grep -E --color=yes '.{80}' |
| exit 1 |
| fi |
| |
| # no --help output to stdout |
| if "$1" --help 2>&1 1>/dev/null | grep .; then |
| echo "$(basename "$1") --help prints to stderr" |
| exit 2 |
| fi |
| |
| # error output to stderr |
| if ! "$1" --no-such-parameter 2>&1 1>/dev/null | grep -q .; then |
| echo "$(basename "$1") with an unknown parameter does not print to stderr" |
| exit 3 |
| fi |