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Improve test logger (#24235) 

Before, there was a `log/buffer.go`, but that design is not general, and
it introduces a lot of irrelevant `Content() (string, error) ` and
`return "", fmt.Errorf("not supported")` .


And the old `log/buffer.go` is difficult to use, developers have to
write a lot of `Contains` and `Sleep` code.


The new `LogChecker` is designed to be a general approach to help to
assert some messages appearing or not appearing in logs.
This commit is contained in:
wxiaoguang 2023-04-22 04:32:25 +08:00 committed by GitHub
parent 65fe0fb22c
commit 911975059a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
13 changed files with 195 additions and 214 deletions
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5
models/migrations/base/testlogger.go
View File

@ -165,11 +165,6 @@ func (log *TestLogger) Init(config string) error {
return nil
}
// Content returns the content accumulated in the content provider
func (log *TestLogger) Content() (string, error) {
return "", fmt.Errorf("not supported")
}
// Flush when log should be flushed
func (log *TestLogger) Flush() {
}

71
modules/log/buffer.go
View File

@ -1,71 +0,0 @@
// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package log
import (
"bytes"
"sync"
)
type bufferWriteCloser struct {
mu sync.Mutex
buffer bytes.Buffer
}
func (b *bufferWriteCloser) Write(p []byte) (int, error) {
b.mu.Lock()
defer b.mu.Unlock()
return b.buffer.Write(p)
}
func (b *bufferWriteCloser) Close() error {
return nil
}
func (b *bufferWriteCloser) String() string {
b.mu.Lock()
defer b.mu.Unlock()
return b.buffer.String()
}
// BufferLogger implements LoggerProvider and writes messages in a buffer.
type BufferLogger struct {
WriterLogger
}
// NewBufferLogger create BufferLogger returning as LoggerProvider.
func NewBufferLogger() LoggerProvider {
log := &BufferLogger{}
log.NewWriterLogger(&bufferWriteCloser{})
return log
}
// Init inits connection writer
func (log *BufferLogger) Init(string) error {
log.NewWriterLogger(log.out)
return nil
}
// Content returns the content accumulated in the content provider
func (log *BufferLogger) Content() (string, error) {
return log.out.(*bufferWriteCloser).String(), nil
}
// Flush when log should be flushed
func (log *BufferLogger) Flush() {
}
// ReleaseReopen does nothing
func (log *BufferLogger) ReleaseReopen() error {
return nil
}
// GetName returns the default name for this implementation
func (log *BufferLogger) GetName() string {
return "buffer"
}
func init() {
Register("buffer", NewBufferLogger)
}

63
modules/log/buffer_test.go
View File

@ -1,63 +0,0 @@
// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package log
import (
"fmt"
"strings"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func TestBufferLogger(t *testing.T) {
logger := NewBufferLogger()
bufferLogger := logger.(*BufferLogger)
assert.NotNil(t, bufferLogger)
err := logger.Init("")
assert.NoError(t, err)
location, _ := time.LoadLocation("EST")
date := time.Date(2019, time.January, 13, 22, 3, 30, 15, location)
msg := "TEST MSG"
event := Event{
level: INFO,
msg: msg,
caller: "CALLER",
filename: "FULL/FILENAME",
line: 1,
time: date,
}
logger.LogEvent(&event)
content, err := bufferLogger.Content()
assert.NoError(t, err)
assert.Contains(t, content, msg)
logger.Close()
}
func TestBufferLoggerContent(t *testing.T) {
level := INFO
logger := NewLogger(0, "console", "console", fmt.Sprintf(`{"level":"%s"}`, level.String()))
logger.SetLogger("buffer", "buffer", "{}")
defer logger.DelLogger("buffer")
msg := "A UNIQUE MESSAGE"
Error(msg)
found := false
for i := 0; i < 30000; i++ {
content, err := logger.GetLoggerProviderContent("buffer")
assert.NoError(t, err)
if strings.Contains(content, msg) {
found = true
break
}
time.Sleep(1 * time.Millisecond)
}
assert.True(t, found)
}

5
modules/log/conn.go
View File

@ -118,11 +118,6 @@ func (log *ConnLogger) Init(jsonconfig string) error {
return nil
}
// Content returns the content accumulated in the content provider
func (log *ConnLogger) Content() (string, error) {
return "", fmt.Errorf("not supported")
}
// Flush does nothing for this implementation
func (log *ConnLogger) Flush() {
}

5
modules/log/console.go
View File

@ -65,11 +65,6 @@ func (log *ConsoleLogger) Init(config string) error {
return nil
}
// Content returns the content accumulated in the content provider
func (log *ConsoleLogger) Content() (string, error) {
return "", fmt.Errorf("not supported")
}
// Flush when log should be flushed
func (log *ConsoleLogger) Flush() {
}

10
modules/log/event.go
View File

@ -247,12 +247,6 @@ func (m *MultiChannelledLog) GetEventLogger(name string) EventLogger {
return m.loggers[name]
}
// GetEventProvider returns a sub logger provider content from this MultiChannelledLog
func (m *MultiChannelledLog) GetLoggerProviderContent(name string) (string, error) {
channelledLogger := m.GetEventLogger(name).(*ChannelledLog)
return channelledLogger.loggerProvider.Content()
}
// GetEventLoggerNames returns a list of names
func (m *MultiChannelledLog) GetEventLoggerNames() []string {
m.rwmutex.RLock()
@ -460,3 +454,7 @@ func (m *MultiChannelledLog) ResetLevel() Level {
func (m *MultiChannelledLog) GetName() string {
return m.name
}
func (e *Event) GetMsg() string {
return e.msg
}

9
modules/log/file.go
View File

@ -253,15 +253,6 @@ func (log *FileLogger) deleteOldLog() {
})
}
// Content returns the content accumulated in the content provider
func (log *FileLogger) Content() (string, error) {
b, err := os.ReadFile(log.Filename)
if err != nil {
return "", err
}
return string(b), nil
}
// Flush flush file logger.
// there are no buffering messages in file logger in memory.
// flush file means sync file from disk.

1
modules/log/provider.go
View File

@ -6,7 +6,6 @@ package log
// LoggerProvider represents behaviors of a logger provider.
type LoggerProvider interface {
Init(config string) error
Content() (string, error)
EventLogger
}

5
modules/log/smtp.go
View File

@ -95,11 +95,6 @@ func (log *SMTPLogger) sendMail(p []byte) (int, error) {
)
}
// Content returns the content accumulated in the content provider
func (log *SMTPLogger) Content() (string, error) {
return "", fmt.Errorf("not supported")
}
// Flush when log should be flushed
func (log *SMTPLogger) Flush() {
}

116
modules/test/logchecker.go Normal file
View File

@ -0,0 +1,116 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package test
import (
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
"code.gitea.io/gitea/modules/log"
)
type LogChecker struct {
logger *log.MultiChannelledLogger
loggerName string
eventLoggerName string
filterMessages []string
filtered []bool
stopMark string
stopped bool
mu sync.Mutex
}
func (lc *LogChecker) LogEvent(event *log.Event) error {
lc.mu.Lock()
defer lc.mu.Unlock()
for i, msg := range lc.filterMessages {
if strings.Contains(event.GetMsg(), msg) {
lc.filtered[i] = true
}
}
if strings.Contains(event.GetMsg(), lc.stopMark) {
lc.stopped = true
}
return nil
}
func (lc *LogChecker) Close() {}
func (lc *LogChecker) Flush() {}
func (lc *LogChecker) GetLevel() log.Level {
return log.TRACE
}
func (lc *LogChecker) GetStacktraceLevel() log.Level {
return log.NONE
}
func (lc *LogChecker) GetName() string {
return lc.eventLoggerName
}
func (lc *LogChecker) ReleaseReopen() error {
return nil
}
var checkerIndex int64
func NewLogChecker(loggerName string) (logChecker *LogChecker, cancel func()) {
logger := log.GetLogger(loggerName)
newCheckerIndex := atomic.AddInt64(&checkerIndex, 1)
lc := &LogChecker{
logger: logger,
loggerName: loggerName,
eventLoggerName: "TestLogChecker-" + strconv.FormatInt(newCheckerIndex, 10),
}
if err := logger.AddLogger(lc); err != nil {
panic(err) // it's impossible
}
return lc, func() { _, _ = logger.DelLogger(lc.GetName()) }
}
// Filter will make the `Check` function to check if these logs are outputted.
func (lc *LogChecker) Filter(msgs ...string) *LogChecker {
lc.mu.Lock()
defer lc.mu.Unlock()
lc.filterMessages = make([]string, len(msgs))
copy(lc.filterMessages, msgs)
lc.filtered = make([]bool, len(lc.filterMessages))
return lc
}
func (lc *LogChecker) StopMark(msg string) *LogChecker {
lc.mu.Lock()
defer lc.mu.Unlock()
lc.stopMark = msg
lc.stopped = false
return lc
}
// Check returns the filtered slice and whether the stop mark is reached.
func (lc *LogChecker) Check(d time.Duration) (filtered []bool, stopped bool) {
stop := time.Now().Add(d)
for {
lc.mu.Lock()
stopped = lc.stopped
lc.mu.Unlock()
if time.Now().After(stop) || stopped {
lc.mu.Lock()
f := make([]bool, len(lc.filtered))
copy(f, lc.filtered)
lc.mu.Unlock()
return f, stopped
}
time.Sleep(10 * time.Millisecond)
}
}

47
modules/test/logchecker_test.go Normal file
View File

@ -0,0 +1,47 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package test
import (
"testing"
"time"
"code.gitea.io/gitea/modules/log"
"github.com/stretchr/testify/assert"
)
func TestLogChecker(t *testing.T) {
_ = log.NewLogger(1000, "console", "console", `{"level":"info","stacktracelevel":"NONE","stderr":true}`)
lc, cleanup := NewLogChecker(log.DEFAULT)
defer cleanup()
lc.Filter("First", "Third").StopMark("End")
log.Info("test")
filtered, stopped := lc.Check(100 * time.Millisecond)
assert.EqualValues(t, []bool{false, false}, filtered)
assert.EqualValues(t, false, stopped)
log.Info("First")
filtered, stopped = lc.Check(100 * time.Millisecond)
assert.EqualValues(t, []bool{true, false}, filtered)
assert.EqualValues(t, false, stopped)
log.Info("Second")
filtered, stopped = lc.Check(100 * time.Millisecond)
assert.EqualValues(t, []bool{true, false}, filtered)
assert.EqualValues(t, false, stopped)
log.Info("Third")
filtered, stopped = lc.Check(100 * time.Millisecond)
assert.EqualValues(t, []bool{true, true}, filtered)
assert.EqualValues(t, false, stopped)
log.Info("End")
filtered, stopped = lc.Check(100 * time.Millisecond)
assert.EqualValues(t, []bool{true, true}, filtered)
assert.EqualValues(t, true, stopped)
}

67
services/migrations/gitea_uploader_test.go
View File

@ -10,7 +10,6 @@ import (
"os"
"path/filepath"
"strconv"
"strings"
"testing"
"time"
@ -24,6 +23,7 @@ import (
"code.gitea.io/gitea/modules/log"
base "code.gitea.io/gitea/modules/migration"
"code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/test"
"code.gitea.io/gitea/modules/util"
"github.com/stretchr/testify/assert"
@ -312,10 +312,11 @@ func TestGiteaUploadUpdateGitForPullRequest(t *testing.T) {
}))
for _, testCase := range []struct {
name string
head string
assertContent func(t *testing.T, content string)
pr base.PullRequest
name string
head string
logFilter []string
logFiltered []bool
pr base.PullRequest
}{
{
name: "fork, good Head.SHA",
@ -362,9 +363,8 @@ func TestGiteaUploadUpdateGitForPullRequest(t *testing.T) {
OwnerName: forkRepo.OwnerName,
},
},
assertContent: func(t *testing.T, content string) {
assert.Contains(t, content, "Fetch branch from")
},
logFilter: []string{"Fetch branch from"},
logFiltered: []bool{true},
},
{
name: "invalid fork CloneURL",
@ -388,9 +388,8 @@ func TestGiteaUploadUpdateGitForPullRequest(t *testing.T) {
OwnerName: "WRONG",
},
},
assertContent: func(t *testing.T, content string) {
assert.Contains(t, content, "AddRemote")
},
logFilter: []string{"AddRemote"},
logFiltered: []bool{true},
},
{
name: "no fork, good Head.SHA",
@ -437,10 +436,8 @@ func TestGiteaUploadUpdateGitForPullRequest(t *testing.T) {
OwnerName: fromRepo.OwnerName,
},
},
assertContent: func(t *testing.T, content string) {
assert.Contains(t, content, "Empty reference")
assert.NotContains(t, content, "Cannot remove local head")
},
logFilter: []string{"Empty reference", "Cannot remove local head"},
logFiltered: []bool{true, false},
},
{
name: "no fork, invalid Head.SHA",
@ -464,9 +461,8 @@ func TestGiteaUploadUpdateGitForPullRequest(t *testing.T) {
OwnerName: fromRepo.OwnerName,
},
},
assertContent: func(t *testing.T, content string) {
assert.Contains(t, content, "Deprecated local head")
},
logFilter: []string{"Deprecated local head"},
logFiltered: []bool{true},
},
{
name: "no fork, not found Head.SHA",
@ -490,36 +486,29 @@ func TestGiteaUploadUpdateGitForPullRequest(t *testing.T) {
OwnerName: fromRepo.OwnerName,
},
},
assertContent: func(t *testing.T, content string) {
assert.Contains(t, content, "Deprecated local head")
assert.NotContains(t, content, "Cannot remove local head")
},
logFilter: []string{"Deprecated local head", "Cannot remove local head"},
logFiltered: []bool{true, false},
},
} {
t.Run(testCase.name, func(t *testing.T) {
logger, ok := log.NamedLoggers.Load(log.DEFAULT)
assert.True(t, ok)
logger.SetLogger("buffer", "buffer", "{}")
defer logger.DelLogger("buffer")
stopMark := fmt.Sprintf(">>>>>>>>>>>>>STOP: %s<<<<<<<<<<<<<<<", testCase.name)
logChecker, cleanup := test.NewLogChecker(log.DEFAULT)
logChecker.Filter(testCase.logFilter...).StopMark(stopMark)
defer cleanup()
testCase.pr.EnsuredSafe = true
head, err := uploader.updateGitForPullRequest(&testCase.pr)
assert.NoError(t, err)
assert.EqualValues(t, testCase.head, head)
if testCase.assertContent != nil {
fence := fmt.Sprintf(">>>>>>>>>>>>>FENCE %s<<<<<<<<<<<<<<<", testCase.name)
log.Error(fence)
var content string
for i := 0; i < 5000; i++ {
content, err = logger.GetLoggerProviderContent("buffer")
assert.NoError(t, err)
if strings.Contains(content, fence) {
break
}
time.Sleep(1 * time.Millisecond)
}
testCase.assertContent(t, content)
log.Info(stopMark)
logFiltered, logStopped := logChecker.Check(5 * time.Second)
assert.True(t, logStopped)
if len(testCase.logFilter) > 0 {
assert.EqualValues(t, testCase.logFiltered, logFiltered, "for log message filters: %v", testCase.logFilter)
}
})
}

5
tests/testlogger.go
View File

@ -180,11 +180,6 @@ func (log *TestLogger) Init(config string) error {
return nil
}
// Content returns the content accumulated in the content provider
func (log *TestLogger) Content() (string, error) {
return "", fmt.Errorf("not supported")
}
// Flush when log should be flushed
func (log *TestLogger) Flush() {
}