#!/bin/sh cleanup() { unset -f nvm_ls_current nvm; } die () { echo "$@" ; cleanup ; exit 1; } \. ../../../nvm.sh nvm_ls_current() { echo foo; } nvm() { echo "nvm: $@" } OUTPUT="$(nvm_use_if_needed foo)" EXPECTED_OUTPUT='' [ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "expected >${EXPECTED_OUTPUT}<; got >${OUTPUT}<" OUTPUT="$(nvm_use_if_needed bar)" EXPECTED_OUTPUT='nvm: use bar' [ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "expected >${EXPECTED_OUTPUT}<; got >${OUTPUT}<" cleanup