#!/bin/sh
set -eu
cat << 'EOF' > "$DATADIR/env.yarn"
SCENARIO check environment
THEN DATADIR is set
AND SRCDIR is set
AND NOTSET is not set
IMPLEMENTS THEN (\S+) is set
env | grep "^$MATCH_1="
IMPLEMENTS THEN (\S+) is not set
! env | grep "^$MATCH_1="
EOF
NOTSET=foo ./run-yarn "$DATADIR/env.yarn"