#!/bin/bash

# Copyright 2014 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Starts a Kubernetes cluster, runs the e2e test suite, and shuts it
# down.
#
# Environment flags:
#   TEST_PATTERN: A pattern to match test filenames against.
#     Example: "TEST_PATTERN=up" would match tests named "update.sh" and
#              "hiccup.sh".

set -o errexit
set -o nounset
set -o pipefail

# Use testing config
export KUBE_CONFIG_FILE="config-test.sh"
KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..

# TODO(jbeda): This will break on usage if there is a space in
# ${KUBE_ROOT}.  Covert to an array?  Or an exported function?
export KUBECFG="${KUBE_ROOT}/cluster/kubecfg.sh -expect_version_match"

source "${KUBE_ROOT}/cluster/kube-env.sh"
source "${KUBE_ROOT}/cluster/$KUBERNETES_PROVIDER/util.sh"

# For debugging of this test's components, it's helpful to leave the test
# cluster running.
ALREADY_UP=${1:-0}
LEAVE_UP=${2:-0}
TEAR_DOWN=${3:-0}

if [[ $TEAR_DOWN -ne 0 ]]; then
  detect-project
  trap test-teardown EXIT
  exit 0
fi

# Build a release required by the test provider [if any]
test-build-release

if [[ ${ALREADY_UP} -ne 1 ]]; then
  # Now bring a test cluster up with that release.
  "${KUBE_ROOT}/cluster/kube-up.sh"
else
  # Just push instead
  "${KUBE_ROOT}/cluster/kube-push.sh"
fi

# Perform any required setup of the cluster
test-setup

set +e

if [[ ${LEAVE_UP} -ne 1 ]]; then
  trap test-teardown EXIT
fi

TEST_PATTERN="${TEST_PATTERN:-}"
failed=()
for test_file in $(ls "${KUBE_ROOT}/hack/e2e-suite/"); do
  if [[ "${TEST_PATTERN}" != "" ]]; then
    check=".*${TEST_PATTERN}.*"
    if [[ ! "$test_file" =~ $check ]]; then
        echo "skipping $test_file"
        continue
    fi
  fi

  echo "running $test_file"
  result=0
  "${KUBE_ROOT}/hack/e2e-suite/${test_file}" || result="$?"
  if [[ "${result}" -eq "0" ]]; then
    echo "${test_file} returned ${result}; passed!"
  else
    echo "${test_file} returned ${result}; FAIL!"
    failed+=(${test_file})
  fi
done

echo
if [[ "${#failed[*]}" -eq 0 ]]; then
  echo "Final: All tests passed."
else
  echo "Final: ${#failed[@]} tests failed: ${failed[@]}."
fi

exit "${#failed[@]}"