#!/bin/bash

# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Runs a given test case under a VM.

. "$(dirname $0)/../common.sh"
. "$(dirname $0)/../lib/cros_vm_lib.sh"
. "$(dirname "$0")/../lib/cros_vm_constants.sh"

MAX_RETRIES=3

get_default_board

DEFINE_string board "$DEFAULT_BOARD" \
    "The board for which you built autotest." b
DEFINE_string image_path "" "Full path of the VM image"
DEFINE_string results_dir_root "" "alternate root results directory"
DEFINE_string test_case "" "Name of the test case to run"
DEFINE_boolean use_emerged ${FLAGS_FALSE} \
    "Force use of emerged autotest packages"

set -e

# Parse command line.
FLAGS "$@" || exit 1

# Use latest if not specified.
if [ -z "${FLAGS_image_path}" ]; then
  LATEST_IMAGE="$(${SCRIPTS_DIR}/get_latest_image.sh \
      --board=${FLAGS_board})/${DEFAULT_QEMU_IMAGE}"
  info "Using latest vm image ${LATEST_IMAGE}"
  FLAGS_image_path=${LATEST_IMAGE}
fi

[ -e "${FLAGS_image_path}" ] || die "Image ${FLAGS_image_path} does not exist."

if [ -n "${FLAGS_test_case}" ]; then
  warn "Use of --test_case=<test> is being deprecated.  Just pass test names \
as separate command line arguments."
fi

if [ -z "${FLAGS_test_case}" ] && [ -z "${FLAGS_ARGV}" ]; then
  die "You must specify a test case."
fi

USE_EMERGED=
if [[ ${FLAGS_use_emerged} -eq ${FLAGS_TRUE} ]]; then
  USE_EMERGED="--use_emerged"
fi

tests=( )
[ -n "${FLAGS_test_case}" ] && tests=( "${FLAGS_test_case}" )
for test in ${FLAGS_ARGV}; do
  tests=( "${tests[@]}" "$(remove_quotes "${test}")" )
done

trap stop_kvm EXIT
start_kvm "${FLAGS_image_path}"
info "Checking for ssh access to virtual machine."
retry_until_ssh ${MAX_RETRIES}
"$(dirname $0)"/../run_remote_tests.sh \
  --board=${FLAGS_board} \
  --ssh_port=${FLAGS_ssh_port} \
  --remote=127.0.0.1 \
  --results_dir_root="${FLAGS_results_dir_root}" \
  ${USE_EMERGED} \
  "${tests[@]}"