#!/bin/sh

set -ex

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

cleanup() {
  cd "${ORIG_PWD}" 2>/dev/null || true
  [ -n "${TMP_DIR-}" ] && rm -rf "${TMP_DIR}"
}

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

: nvm.sh
\. ../../nvm.sh

\. ../common.sh

ORIG_PWD="$(pwd)"

# Run from a fresh, empty directory so no ambient .nvmrc above the test dir
# can satisfy the lookup and mask the warning.
TMP_DIR="$(mktemp -d)"
cd "${TMP_DIR}" || die "could not cd to temp dir"

EXEC_WARNING='WARNING: `nvm exec` was invoked without a version argument and without an .nvmrc file.'
RUN_WARNING='WARNING: `nvm run` was invoked without a version argument and without an .nvmrc file.'

# `nvm exec` with no version and no .nvmrc should warn on stderr (and fall back).
set +ex # needed for stderr
EXEC_STDERR="$(nvm exec </dev/null 2>&1 1>/dev/null)"
set -ex
case "${EXEC_STDERR}" in
  *"${EXEC_WARNING}"*) ;;
  *) die "'nvm exec' with no version did not warn; got >${EXEC_STDERR}<" ;;
esac

# `--silent` should suppress the warning.
set +ex # needed for stderr
EXEC_SILENT_STDERR="$(nvm exec --silent </dev/null 2>&1 1>/dev/null)"
set -ex
case "${EXEC_SILENT_STDERR}" in
  *WARNING*) die "'nvm exec --silent' should not warn; got >${EXEC_SILENT_STDERR}<" ;;
esac

# `nvm run` with an unresolvable version and no .nvmrc should warn (and fall back).
set +ex # needed for stderr
RUN_STDERR="$(nvm run bogusversion </dev/null 2>&1 1>/dev/null)"
set -ex
case "${RUN_STDERR}" in
  *"${RUN_WARNING}"*) ;;
  *) die "'nvm run' with no resolvable version did not warn; got >${RUN_STDERR}<" ;;
esac

# `--silent` should suppress the warning.
set +ex # needed for stderr
RUN_SILENT_STDERR="$(nvm run --silent bogusversion </dev/null 2>&1 1>/dev/null)"
set -ex
case "${RUN_SILENT_STDERR}" in
  *WARNING*) die "'nvm run --silent' should not warn; got >${RUN_SILENT_STDERR}<" ;;
esac

cleanup