#!/bin/sh

die () { echo "$@" ; cleanup ; exit 1; }

cleanup() {
  chmod 644 ../../../alias/test-edge-unreadable 2>/dev/null
  rm -f ../../../alias/test-edge-unreadable
}

export NVM_DIR="$(cd ../../.. && pwd)"

: nvm.sh
\. "${NVM_DIR}/nvm.sh"

# Create an alias file that exists but can not be read
echo 'v0.0.1' > ../../../alias/test-edge-unreadable
chmod 000 ../../../alias/test-edge-unreadable

# root (and some containers) can read mode-000 files; nothing to assert there
if [ -r ../../../alias/test-edge-unreadable ]; then
  cleanup
  exit 0
fi

# like the sed/awk pipeline this replaced: empty output, success status, so
# that `nvm_ensure_default_set` does not overwrite an unreadable default alias
OUTPUT="$(nvm_alias test-edge-unreadable 2>/dev/null)"
EXIT_CODE=$?
[ "${EXIT_CODE}" = '0' ] || die "expected exit code 0 for unreadable alias file, got ${EXIT_CODE}"
[ -z "${OUTPUT}" ] || die "expected empty output for unreadable alias file, got >${OUTPUT}<"

STDERR="$(nvm_alias test-edge-unreadable 2>&1 >/dev/null)"
case "${STDERR}" in
  *'not readable'*) ;;
  *) die "expected a not-readable warning on stderr, got >${STDERR}<" ;;
esac

cleanup