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kubectl: add integration test for result reporting
This currently covers two cases: - "kubectl list" (the regression from kubernetes#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.
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#!/usr/bin/env bash | ||
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# 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. | ||
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set -o errexit | ||
set -o nounset | ||
set -o pipefail | ||
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############################################################ | ||
# Kubectl result reporting for different failure scenarios # | ||
############################################################ | ||
run_kubectl_results_tests() { | ||
set -o nounset | ||
set -o errexit | ||
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kube::log::status "Testing kubectl result output" | ||
TEMP="${KUBE_TEMP}" | ||
rm -f "${TEMP}/empty" | ||
touch "${TEMP}/empty" | ||
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set +o errexit | ||
kubectl list >"${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" | ||
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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" | ||
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set +o nounset | ||
set +o errexit | ||
} |