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911975059aBefore, 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.
116 lines
2.4 KiB
Go
116 lines
2.4 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package test
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import (
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"code.gitea.io/gitea/modules/log"
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)
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type LogChecker struct {
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logger *log.MultiChannelledLogger
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loggerName string
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eventLoggerName string
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filterMessages []string
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filtered []bool
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stopMark string
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stopped bool
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mu sync.Mutex
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}
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func (lc *LogChecker) LogEvent(event *log.Event) error {
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lc.mu.Lock()
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defer lc.mu.Unlock()
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for i, msg := range lc.filterMessages {
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if strings.Contains(event.GetMsg(), msg) {
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lc.filtered[i] = true
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}
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}
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if strings.Contains(event.GetMsg(), lc.stopMark) {
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lc.stopped = true
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}
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return nil
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}
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func (lc *LogChecker) Close() {}
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func (lc *LogChecker) Flush() {}
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func (lc *LogChecker) GetLevel() log.Level {
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return log.TRACE
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}
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func (lc *LogChecker) GetStacktraceLevel() log.Level {
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return log.NONE
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}
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func (lc *LogChecker) GetName() string {
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return lc.eventLoggerName
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}
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func (lc *LogChecker) ReleaseReopen() error {
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return nil
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}
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var checkerIndex int64
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func NewLogChecker(loggerName string) (logChecker *LogChecker, cancel func()) {
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logger := log.GetLogger(loggerName)
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newCheckerIndex := atomic.AddInt64(&checkerIndex, 1)
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lc := &LogChecker{
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logger: logger,
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loggerName: loggerName,
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eventLoggerName: "TestLogChecker-" + strconv.FormatInt(newCheckerIndex, 10),
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}
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if err := logger.AddLogger(lc); err != nil {
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panic(err) // it's impossible
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}
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return lc, func() { _, _ = logger.DelLogger(lc.GetName()) }
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}
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// Filter will make the `Check` function to check if these logs are outputted.
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func (lc *LogChecker) Filter(msgs ...string) *LogChecker {
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lc.mu.Lock()
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defer lc.mu.Unlock()
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lc.filterMessages = make([]string, len(msgs))
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copy(lc.filterMessages, msgs)
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lc.filtered = make([]bool, len(lc.filterMessages))
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return lc
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}
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func (lc *LogChecker) StopMark(msg string) *LogChecker {
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lc.mu.Lock()
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defer lc.mu.Unlock()
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lc.stopMark = msg
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lc.stopped = false
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return lc
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}
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// Check returns the filtered slice and whether the stop mark is reached.
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func (lc *LogChecker) Check(d time.Duration) (filtered []bool, stopped bool) {
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stop := time.Now().Add(d)
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for {
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lc.mu.Lock()
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stopped = lc.stopped
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lc.mu.Unlock()
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if time.Now().After(stop) || stopped {
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lc.mu.Lock()
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f := make([]bool, len(lc.filtered))
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copy(f, lc.filtered)
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lc.mu.Unlock()
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return f, stopped
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}
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time.Sleep(10 * time.Millisecond)
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}
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}
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