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The module pkg/kubelet/winstats has almost no coverage for Windows. This commit adds unit tests to cover the mentioned module.
137 lines
3.4 KiB
Go
137 lines
3.4 KiB
Go
//go:build windows
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// +build windows
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/*
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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 winstats
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import (
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"testing"
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"time"
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"k8s.io/apimachinery/pkg/util/wait"
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)
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func TestPerfCounter(t *testing.T) {
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testCases := map[string]struct {
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counter string
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skipCheck bool
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expectErr bool
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expectedErrMsg string
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}{
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"CPU Query": {
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counter: cpuQuery,
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},
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"Memory Prvate Working Set Query": {
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counter: memoryPrivWorkingSetQuery,
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},
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"Memory Committed Bytes Query": {
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counter: memoryCommittedBytesQuery,
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},
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"Net Adapter Packets Received/sec Query": {
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counter: packetsReceivedPerSecondQuery,
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skipCheck: true,
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},
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"Net Adapter Packets Sent/sec Query": {
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counter: packetsSentPerSecondQuery,
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skipCheck: true,
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},
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"Net Adapter Bytes Received/sec Query": {
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counter: bytesReceivedPerSecondQuery,
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skipCheck: true,
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},
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"Net Adapter Bytes Sent/sec Query": {
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counter: bytesSentPerSecondQuery,
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skipCheck: true,
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},
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"Net Adapter Packets Received Discarded Query": {
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counter: packetsReceivedDiscardedQuery,
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skipCheck: true,
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},
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"Net Adapter Packets Received Errors Query": {
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counter: packetsReceivedErrorsQuery,
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skipCheck: true,
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},
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"Net Adapter Packets Outbound Discarded Query": {
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counter: packetsOutboundDiscardedQuery,
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skipCheck: true,
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},
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"Net Adapter Packets Outbound Errors Query": {
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counter: packetsOutboundErrorsQuery,
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skipCheck: true,
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},
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"Invalid Query": {
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counter: "foo",
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expectErr: true,
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expectedErrMsg: "unable to add process counter: foo. Error code is c0000bc0",
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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counter, err := newPerfCounter(tc.counter)
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if tc.expectErr {
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if err == nil || err.Error() != tc.expectedErrMsg {
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t.Fatalf("expected error message `%s` but got `%v`", tc.expectedErrMsg, err)
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}
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return
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}
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// There are some counters that we can't expect to see any non-zero values, like the
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// networking-related counters.
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if tc.skipCheck {
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return
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}
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// Wait until we get a non-zero perf counter data.
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if pollErr := wait.Poll(100*time.Millisecond, 5*perfCounterUpdatePeriod, func() (bool, error) {
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data, err := counter.getData()
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if err != nil {
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return false, err
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}
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if data != 0 {
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return true, nil
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}
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return false, nil
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}); pollErr != nil {
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t.Fatalf("Encountered error: `%v'", pollErr)
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return
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}
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// Check that we have at least one non-zero value in the data list.
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if pollErr := wait.Poll(100*time.Millisecond, 5*perfCounterUpdatePeriod, func() (bool, error) {
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dataList, err := counter.getDataList()
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if err != nil {
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return false, err
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}
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for _, value := range dataList {
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if value != 0 {
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return true, nil
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}
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}
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return false, nil
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}); pollErr != nil {
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t.Fatalf("Encountered error: `%v'", pollErr)
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}
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})
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}
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}
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