1#!/usr/bin/env bash
2
3# Copyright 2018 The Kubernetes Authors.
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9# http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16
17set -o errexit
18set -o nounset
19set -o pipefail
20
21run_plugins_tests() {
22 set -o nounset
23 set -o errexit
24
25 kube::log::status "Testing kubectl plugins"
26
27 # Create a folder which only contains our kubectl executable
28 TEMP_PATH=$(mktemp -d /tmp/tmp-kubectl-path-XXXXX)
29 ln -s "$(which kubectl)" "${TEMP_PATH}/kubectl"
30
31 # test plugins that overwrite existing kubectl commands
32 output_message=$(! PATH=${TEMP_PATH}:"test/fixtures/pkg/kubectl/plugins/version" kubectl plugin list 2>&1)
33 kube::test::if_has_string "${output_message}" 'kubectl-version overwrites existing command: "kubectl version"'
34
35 # test plugins that overwrite similarly-named plugins
36 output_message=$(! PATH=${TEMP_PATH}:"test/fixtures/pkg/kubectl/plugins:test/fixtures/pkg/kubectl/plugins/foo" kubectl plugin list 2>&1)
37 kube::test::if_has_string "${output_message}" 'test/fixtures/pkg/kubectl/plugins/foo/kubectl-foo is overshadowed by a similarly named plugin'
38
39 # test plugins with no warnings
40 output_message=$(PATH=${TEMP_PATH}:"test/fixtures/pkg/kubectl/plugins" kubectl plugin list 2>&1)
41 kube::test::if_has_string "${output_message}" 'plugins are available'
42
43 # no plugins
44 output_message=$(! PATH=${TEMP_PATH}:"test/fixtures/pkg/kubectl/plugins/empty" kubectl plugin list 2>&1)
45 kube::test::if_has_string "${output_message}" 'unable to find any kubectl plugins in your PATH'
46
47 # attempt to run a plugin in the user's PATH
48 output_message=$(PATH=${TEMP_PATH}:"test/fixtures/pkg/kubectl/plugins" kubectl foo)
49 kube::test::if_has_string "${output_message}" 'plugin foo'
50
51 # check arguments passed to the plugin
52 output_message=$(PATH=${PATH}:"test/fixtures/pkg/kubectl/plugins/bar" kubectl bar arg1)
53 kube::test::if_has_string "${output_message}" 'test/fixtures/pkg/kubectl/plugins/bar/kubectl-bar arg1'
54
55 # ensure that a kubectl command supersedes a plugin that overshadows it
56 output_message=$(PATH=${TEMP_PATH}:"test/fixtures/pkg/kubectl/plugins/version" kubectl version --client)
57 kube::test::if_has_string "${output_message}" 'Client Version'
58 kube::test::if_has_not_string "${output_message}" 'overshadows an existing plugin'
59
60 # attempt to run a plugin as a subcommand of kubectl create in the user's PATH
61 output_message=$(PATH=${TEMP_PATH}:"test/fixtures/pkg/kubectl/plugins/create" kubectl create foo)
62 kube::test::if_has_string "${output_message}" 'plugin foo as a subcommand of kubectl create command'
63
64 # ensure that a kubectl create cronjob builtin command supersedes a plugin that overshadows it
65 output_message=$(PATH=${TEMP_PATH}:"test/fixtures/pkg/kubectl/plugins/create" kubectl create cronjob --help)
66 kube::test::if_has_not_string "${output_message}" 'plugin cronjob as a subcommand of kubectl create command'
67
68 rm -fr "${TEMP_PATH}"
69
70 set +o nounset
71 set +o errexit
72}
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