#!/bin/sh cleanup () { unalias foo; unalias grep; } die () { echo $@ ; cleanup ; exit 1; } \. ../../../nvm.sh alias foo='bar' nvm_is_alias foo || die '"nvm_is_alias foo" was not true' ! nvm_is_alias nvm_is_alias || die '"nvm_is_alias nvm_is_alias was not false' alias grep='grep' unalias grep || die '"unalias grep" failed' ! nvm_is_alias grep || die '"nvm_is_alias grep" with unaliased grep was not false' alias grep='grep' nvm_is_alias grep || die '"nvm_is_alias grep" with aliased grep was not true' cleanup