kubernetes/test/cmd/results.sh
Patrick Ohly 798bdab3d0 kubectl: add integration test for result reporting
This currently covers two cases:
- "kubectl list" (the regression from https://github.com/kubernetes/kubernetes/issues/107012)
- "kubectl get pods/no-such-pod" (no particular reason except that the output
should be deterministic)

In contrast to some other tests that check for strings inside the
output (run_deprecated_api_tests) or compare after
sorting (run_kubectl_version_tests), stdout, stderr and the return code must
match exactly.

This ensures that there is no extra, unexpected output and that the right
output stream is used.
2022-01-11 09:04:56 +01:00

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#!/usr/bin/env bash
# Copyright 2022 The Kubernetes Authors.
#
# 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.
set -o errexit
set -o nounset
set -o pipefail
############################################################
# Kubectl result reporting for different failure scenarios #
############################################################
run_kubectl_results_tests() {
set -o nounset
set -o errexit
kube::log::status "Testing kubectl result output"
TEMP="${KUBE_TEMP}"
rm -f "${TEMP}/empty"
touch "${TEMP}/empty"
set +o errexit
kubectl list >"${TEMP}/actual_stdout" 2>"${TEMP}/actual_stderr"
res=$?
set -o errexit
cat >"${TEMP}/expected_stderr" <<EOF
error: unknown command "list" for "kubectl"
Did you mean this?
get
wait
EOF
kube::test::results::diff "${TEMP}/actual_stdout" "${TEMP}/actual_stderr" "$res" "${TEMP}/empty" "${TEMP}/expected_stderr" 1 "kubectl list"
set +o errexit
kubectl get pod/no-such-pod >"${TEMP}/actual_stdout" 2>"${TEMP}/actual_stderr"
res=$?
set -o errexit
cat >"${TEMP}/expected_stderr" <<EOF
Error from server (NotFound): pods "no-such-pod" not found
EOF
kube::test::results::diff "${TEMP}/actual_stdout" "${TEMP}/actual_stderr" "$res" "${TEMP}/empty" "${TEMP}/expected_stderr" 1 "kubectl get pod/no-such-pod"
set +o nounset
set +o errexit
}