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// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package testlogger
import (
"context"
"fmt"
"os"
"runtime"
"strings"
"sync"
"testing"
"time"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/queue"
)
var (
prefix string
SlowTest = 10 * time.Second
SlowFlush = 5 * time.Second
)
// TestLogger is a logger which will write to the testing log
type TestLogger struct {
log.WriterLogger
}
var WriterCloser = &testLoggerWriterCloser{}
type testLoggerWriterCloser struct {
sync.RWMutex
t []*testing.TB
}
func (w *testLoggerWriterCloser) pushT(t *testing.TB) {
w.Lock()
w.t = append(w.t, t)
w.Unlock()
}
func (w *testLoggerWriterCloser) Write(p []byte) (int, error) {
// There was a data race problem: the logger system could still try to output logs after the runner is finished.
// So we must ensure that the "t" in stack is still valid.
w.RLock()
defer w.RUnlock()
var t *testing.TB
if len(w.t) > 0 {
t = w.t[len(w.t)-1]
}
if len(p) > 0 && p[len(p)-1] == '\n' {
p = p[:len(p)-1]
}
if t == nil || *t == nil {
// if there is no running test, the log message should be outputted to console, to avoid losing important information.
// the "???" prefix is used to match the "===" and "+++" in PrintCurrentTest
return fmt.Fprintf(os.Stdout, "??? [TestLogger] %s\n", p)
}
defer func() {
err := recover()
if err == nil {
return
}
var errString string
errErr, ok := err.(error)
if ok {
errString = errErr.Error()
} else {
errString, ok = err.(string)
}
if !ok {
panic(err)
}
if !strings.HasPrefix(errString, "Log in goroutine after ") {
panic(err)
}
}()
(*t).Log(string(p))
return len(p), nil
}
func (w *testLoggerWriterCloser) popT() {
w.Lock()
if len(w.t) > 0 {
w.t = w.t[:len(w.t)-1]
}
w.Unlock()
}
func (w *testLoggerWriterCloser) Close() error {
return nil
}
func (w *testLoggerWriterCloser) Reset() {
w.Lock()
if len(w.t) > 0 {
for _, t := range w.t {
if t == nil {
continue
}
fmt.Fprintf(os.Stdout, "Unclosed logger writer in test: %s", (*t).Name())
(*t).Errorf("Unclosed logger writer in test: %s", (*t).Name())
}
w.t = nil
}
w.Unlock()
}
// PrintCurrentTest prints the current test to os.Stdout
func PrintCurrentTest(t testing.TB, skip ...int) func() {
start := time.Now()
actualSkip := 1
if len(skip) > 0 {
actualSkip = skip[0]
}
_, filename, line, _ := runtime.Caller(actualSkip)
if log.CanColorStdout {
fmt.Fprintf(os.Stdout, "=== %s (%s:%d)\n", fmt.Formatter(log.NewColoredValue(t.Name())), strings.TrimPrefix(filename, prefix), line)
} else {
fmt.Fprintf(os.Stdout, "=== %s (%s:%d)\n", t.Name(), strings.TrimPrefix(filename, prefix), line)
}
WriterCloser.pushT(&t)
return func() {
took := time.Since(start)
if took > SlowTest {
if log.CanColorStdout {
fmt.Fprintf(os.Stdout, "+++ %s is a slow test (took %v)\n", fmt.Formatter(log.NewColoredValue(t.Name(), log.Bold, log.FgYellow)), fmt.Formatter(log.NewColoredValue(took, log.Bold, log.FgYellow)))
} else {
fmt.Fprintf(os.Stdout, "+++ %s is a slow test (took %v)\n", t.Name(), took)
}
}
timer := time.AfterFunc(SlowFlush, func() {
if log.CanColorStdout {
fmt.Fprintf(os.Stdout, "+++ %s ... still flushing after %v ...\n", fmt.Formatter(log.NewColoredValue(t.Name(), log.Bold, log.FgRed)), SlowFlush)
} else {
fmt.Fprintf(os.Stdout, "+++ %s ... still flushing after %v ...\n", t.Name(), SlowFlush)
}
})
if err := queue.GetManager().FlushAll(context.Background(), time.Minute); err != nil {
t.Errorf("Flushing queues failed with error %v", err)
}
timer.Stop()
flushTook := time.Since(start) - took
if flushTook > SlowFlush {
if log.CanColorStdout {
fmt.Fprintf(os.Stdout, "+++ %s had a slow clean-up flush (took %v)\n", fmt.Formatter(log.NewColoredValue(t.Name(), log.Bold, log.FgRed)), fmt.Formatter(log.NewColoredValue(flushTook, log.Bold, log.FgRed)))
} else {
fmt.Fprintf(os.Stdout, "+++ %s had a slow clean-up flush (took %v)\n", t.Name(), flushTook)
}
}
WriterCloser.popT()
}
}
// Printf takes a format and args and prints the string to os.Stdout
func Printf(format string, args ...interface{}) {
if log.CanColorStdout {
for i := 0; i < len(args); i++ {
args[i] = log.NewColoredValue(args[i])
}
}
fmt.Fprintf(os.Stdout, "\t"+format, args...)
}
// NewTestLogger creates a TestLogger as a log.LoggerProvider
func NewTestLogger() log.LoggerProvider {
logger := &TestLogger{}
logger.Colorize = log.CanColorStdout
logger.Level = log.TRACE
return logger
}
// Init inits connection writer with json config.
// json config only need key "level".
func (log *TestLogger) Init(config string) error {
err := json.Unmarshal([]byte(config), log)
if err != nil {
return err
}
log.NewWriterLogger(WriterCloser)
return nil
}
// Flush when log should be flushed
func (log *TestLogger) Flush() {
}
// ReleaseReopen does nothing
func (log *TestLogger) ReleaseReopen() error {
return nil
}
// GetName returns the default name for this implementation
func (log *TestLogger) GetName() string {
return "test"
}
func init() {
const relFilePath = "modules/testlogger/testlogger.go"
_, filename, _, _ := runtime.Caller(0)
if !strings.HasSuffix(filename, relFilePath) {
panic("source code file path doesn't match expected: " + relFilePath)
}
prefix = strings.TrimSuffix(filename, relFilePath)
}
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