mirror of
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Merge pull request #102625 from serathius/klog-integration
Add klog integration tests
This commit is contained in:
Kubernetes Prow Robot
@@ -19,7 +19,6 @@ package logs
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import (
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"bufio"
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"bytes"
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"flag"
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"fmt"
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"testing"
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"time"
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@@ -28,8 +27,6 @@ import (
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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"k8s.io/klog/v2"
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)
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// TestZapLoggerInfo test ZapLogger json info format
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@@ -147,38 +144,6 @@ func TestZapLoggerError(t *testing.T) {
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}
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}
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// TestKlogV test klog -v(--verbose) func available with json logger
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func TestKlogV(t *testing.T) {
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var buffer testBuff
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logger := NewJSONLogger(&buffer)
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klog.SetLogger(logger)
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defer klog.SetLogger(nil)
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fs := flag.FlagSet{}
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klog.InitFlags(&fs)
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totalLogsWritten := 0
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defer fs.Set("v", "0")
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for i := 0; i < 11; i++ {
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err := fs.Set("v", fmt.Sprintf("%d", i))
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if err != nil {
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t.Fatalf("Failed to set verbosity")
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}
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for j := 0; j < 11; j++ {
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klog.V(klog.Level(j)).Info("test", "time", time.Microsecond)
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logWritten := buffer.writeCount > 0
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totalLogsWritten += buffer.writeCount
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buffer.writeCount = 0
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if logWritten == (i < j) {
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t.Errorf("klog.V(%d).Info(...) wrote log when -v=%d", j, i)
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}
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}
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}
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if totalLogsWritten != 66 {
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t.Fatalf("Unexpected number of logs written, got %d, expected 66", totalLogsWritten)
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}
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}
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type testBuff struct {
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writeCount int
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}
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242
staging/src/k8s.io/component-base/logs/json/klog_test.go
Normal file
242
staging/src/k8s.io/component-base/logs/json/klog_test.go
Normal file
@@ -0,0 +1,242 @@
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/*
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Copyright 2020 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 logs
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import (
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"bytes"
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"errors"
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"flag"
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"fmt"
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"strings"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"go.uber.org/zap/zapcore"
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"k8s.io/klog/v2"
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)
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func TestKlogIntegration(t *testing.T) {
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fs := flag.FlagSet{}
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klog.InitFlags(&fs)
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err := fs.Set("v", fmt.Sprintf("%d", 1))
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if err != nil {
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t.Fatalf("Failed to set verbosity")
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}
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tcs := []struct {
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name string
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fun func()
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format string
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}{
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{
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name: "Info",
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fun: func() {
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klog.Info("test ", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "V(1).Info",
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fun: func() {
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klog.V(1).Info("test ", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":1}`,
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},
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{
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name: "Infof",
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fun: func() {
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klog.Infof("test %d", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "V(1).Infof",
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fun: func() {
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klog.V(1).Infof("test %d", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":1}`,
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},
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{
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name: "Infoln",
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fun: func() {
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klog.Infoln("test", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "V(1).Infoln",
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fun: func() {
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klog.V(1).Infoln("test", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":1}`,
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},
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{
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name: "InfoDepth",
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fun: func() {
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klog.InfoDepth(1, "test ", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "InfoS",
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fun: func() {
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klog.InfoS("test", "count", 1)
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},
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format: `{"ts":%f,"msg":"test","v":0,"count":1}`,
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},
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{
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name: "V(1).InfoS",
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fun: func() {
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klog.V(1).InfoS("test", "count", 1)
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},
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format: `{"ts":%f,"msg":"test","v":1,"count":1}`,
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},
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{
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name: "InfoSDepth",
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fun: func() {
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klog.InfoSDepth(1, "test", "count", 1)
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},
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format: `{"ts":%f,"msg":"test","v":0,"count":1}`,
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},
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{
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name: "Warning",
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fun: func() {
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klog.Warning("test ", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "WarningDepth",
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fun: func() {
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klog.WarningDepth(1, "test ", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "Warningln",
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fun: func() {
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klog.Warningln("test", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "Warningf",
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fun: func() {
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klog.Warningf("test %d", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "Error",
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fun: func() {
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klog.Error("test ", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "ErrorDepth",
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fun: func() {
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klog.ErrorDepth(1, "test ", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "Errorln",
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fun: func() {
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klog.Errorln("test", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "Errorf",
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fun: func() {
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klog.Errorf("test %d", 1)
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},
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format: `{"ts":%f,"msg":"test 1\n","v":0}`,
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},
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{
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name: "ErrorS",
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fun: func() {
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err := errors.New("fail")
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klog.ErrorS(err, "test", "count", 1)
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},
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format: `{"ts":%f,"msg":"test","v":0,"count":1,"err":"fail"}`,
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},
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{
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name: "ErrorSDepth",
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fun: func() {
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err := errors.New("fail")
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klog.ErrorSDepth(1, err, "test", "count", 1)
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},
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format: `{"ts":%f,"msg":"test","v":0,"count":1,"err":"fail"}`,
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},
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}
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for _, tc := range tcs {
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t.Run(tc.name, func(t *testing.T) {
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var buffer bytes.Buffer
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var logger = NewJSONLogger(zapcore.AddSync(&buffer))
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klog.SetLogger(logger)
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defer klog.SetLogger(nil)
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tc.fun()
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var ts float64
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logString := strings.TrimSuffix(buffer.String(), "\n")
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n, err := fmt.Sscanf(logString, tc.format, &ts)
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if n != 1 || err != nil {
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t.Errorf("log format error: %d elements, error %s:\n%s", n, err, logString)
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}
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expect := fmt.Sprintf(tc.format, ts)
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if !assert.Equal(t, expect, logString) {
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t.Errorf("Info has wrong format \n expect:%s\n got:%s", expect, logString)
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}
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})
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}
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}
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// TestKlogV test klog -v(--verbose) func available with json logger
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func TestKlogV(t *testing.T) {
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var buffer testBuff
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logger := NewJSONLogger(&buffer)
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klog.SetLogger(logger)
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defer klog.SetLogger(nil)
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fs := flag.FlagSet{}
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klog.InitFlags(&fs)
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totalLogsWritten := 0
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defer fs.Set("v", "0")
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for i := 0; i < 11; i++ {
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err := fs.Set("v", fmt.Sprintf("%d", i))
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if err != nil {
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t.Fatalf("Failed to set verbosity")
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}
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for j := 0; j < 11; j++ {
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klog.V(klog.Level(j)).Info("test", "time", time.Microsecond)
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logWritten := buffer.writeCount > 0
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totalLogsWritten += buffer.writeCount
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buffer.writeCount = 0
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if logWritten == (i < j) {
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t.Errorf("klog.V(%d).Info(...) wrote log when -v=%d", j, i)
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}
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}
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}
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if totalLogsWritten != 66 {
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t.Fatalf("Unexpected number of logs written, got %d, expected 66", totalLogsWritten)
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}
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}
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