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#!/bin/sh
# Copyright 2022 by Ron Yorston
# Licensed under GPLv2, see file LICENSE in this source tree.
. ./testing.sh
# testing "test name" "commands" "expected result" "file input" "stdin"
# Not so much a test of 'env' as of whether environment variables
# (or the lack thereof) are correctly passed to child processes.
testing "environment variables 1a" \
"V=set env sh -c 'env | grep ^V='" \
"V=set
" "" ""
testing "environment variables 1b" \
"V= env sh -c 'env | grep ^V='" \
"V=
" "" ""
testing "environment variables 1c" \
"env sh -c 'env | grep ^V='" \
"" "" ""
testing "environment variables 2a" \
"V=set sh -c 'env | grep ^V='" \
"V=set
" "" ""
testing "environment variables 2b" \
"V= sh -c 'env | grep ^V='" \
"V=
" "" ""
testing "environment variables 2c" \
"sh -c 'env | grep ^V='" \
"" "" ""
testing "environment variables 3a" \
"V=set env sh -c 'echo \${V-unset}'" \
"set
" "" ""
testing "environment variables 3b" \
"V= env sh -c 'echo \${V-unset}'" \
"
" "" ""
testing "environment variables 3c" \
"env sh -c 'echo \${V-unset}'" \
"unset
" "" ""
testing "environment variables 4a" \
"V=set sh -c 'echo \${V-unset}'" \
"set
" "" ""
testing "environment variables 4b" \
"V= sh -c 'echo \${V-unset}'" \
"
" "" ""
testing "environment variables 4c" \
"sh -c 'echo \${V-unset}'" \
"unset
" "" ""
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