nvm/test/fast/Unit tests/nvm_command_info

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#!/bin/sh
cleanup() {
unalias wget
unset -f wget
unset WGET_EXPECTED_INFO WGET_COMMAND_INFO
}
die() { echo "$@" ; cleanup ; exit 1; }
\. ../../../nvm.sh
# 1. test wget command
WGET_COMMAND_INFO="$(nvm_command_info wget)"
WGET_EXPECTED_INFO="$(which wget)"
[ "${WGET_COMMAND_INFO}" = "${WGET_EXPECTED_INFO}" ] || die "wget command info wrong(stage 1), expected: '${WGET_EXPECTED_INFO}', got '${WGET_COMMAND_INFO}'"
cleanup
# 2. test aliased wget
shopt -s expand_aliases
# enable expand_aliases to make alias working in interactive shell
alias wget="wget -V"
WGET_COMMAND_INFO="$(nvm_command_info wget)"
WGET_EXPECTED_INFO="$(which wget) (wget -V)"
[ "${WGET_COMMAND_INFO}" = "${WGET_EXPECTED_INFO}" ] || die "wget command info wrong(stage 2), expected: '${WGET_EXPECTED_INFO}', got '${WGET_COMMAND_INFO}'"
cleanup
# 3. test wget function
wget() {
echo "wget function"
}
WGET_COMMAND_INFO="$(nvm_command_info wget)"
WGET_EXPECTED_INFO="$(type wget)"
[ "${WGET_COMMAND_INFO}" = "${WGET_EXPECTED_INFO}" ] || die "wget command info wrong(stage 3), expected: '${WGET_EXPECTED_INFO}', got '${WGET_COMMAND_INFO}'"
cleanup
# 4. nvm_command_info() should not have standard error
nvm_command_info ls 2>&1 >/dev/null | grep . && die "\`nvm_command_info ls\` should not return standard error message(stage 4)"
nvm_command_info rm 2>&1 >/dev/null | grep . && die "\`nvm_command_info rm\` should not return standard error message(stage 4)"
nvm_command_info git 2>&1 >/dev/null | grep . && die "\`nvm_command_info git\` should not return standard error message(stage 4)"
nvm_command_info grep 2>&1 >/dev/null | grep . && die "\`nvm_command_info grep\` should not return standard error message(stage 4)"
cleanup