83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
/*
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Copyright 2023 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kernel
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import (
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"errors"
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"testing"
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"github.com/stretchr/testify/assert"
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"k8s.io/apimachinery/pkg/util/version"
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)
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func TestGetVersion(t *testing.T) {
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testCases := []struct {
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name string
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readFileFunc readFileFunc
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expected *version.Version
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err error
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}{
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{
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name: "valid os-release file",
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readFileFunc: func(_ string) ([]byte, error) {
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return []byte("5.15.0-84-generic"), nil
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},
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expected: version.MajorMinor(5, 15),
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},
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{
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name: "valid os-release file",
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readFileFunc: func(_ string) ([]byte, error) {
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return []byte("5.4.0-128-generic"), nil
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},
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expected: version.MajorMinor(5, 4),
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},
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{
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name: "failed to read os-release file",
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readFileFunc: func(_ string) ([]byte, error) {
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return nil, errors.New("open /proc/sys/kernel/osrelease: failed to read file")
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},
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err: errors.New("failed to read os-release file: open /proc/sys/kernel/osrelease: failed to read file"),
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expected: nil,
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},
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{
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name: "version not parsable",
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readFileFunc: func(_ string) ([]byte, error) {
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return []byte("5-15-0"), nil
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},
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err: errors.New("failed to parse kernel version: illegal version string \"5-15-0\""),
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expected: nil,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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kernelVersion, err := getVersion(tc.readFileFunc)
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if tc.err != nil {
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assert.Equal(t, tc.err.Error(), err.Error())
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assert.Nil(t, kernelVersion)
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} else {
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assert.NoError(t, err)
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assert.Equal(t, tc.expected.Major(), kernelVersion.Major())
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assert.Equal(t, tc.expected.Minor(), kernelVersion.Minor())
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assert.Equal(t, tc.expected.Patch(), kernelVersion.Patch())
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}
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})
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}
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}
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