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logger_test.go
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package logger_test
import (
"context"
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"reflect"
"strconv"
"strings"
"testing"
"time"
"github.com/stretchr/testify/suite"
"github.com/gildas/go-errors"
"github.com/gildas/go-logger"
)
type LoggerSuite struct {
suite.Suite
Name string
}
type ErrorForTest struct {
Errno string
Code int
}
func (e *ErrorForTest) Error() string {
return fmt.Sprintf("Error %d - %s", e.Code, e.Errno)
}
func TestLoggerSuite(t *testing.T) {
suite.Run(t, new(LoggerSuite))
}
func (suite *LoggerSuite) SetupSuite() {
suite.Name = strings.TrimSuffix(reflect.TypeOf(suite).Elem().Name(), "Suite")
}
func (suite *LoggerSuite) TestShouldPanicWithNoLogger() {
defer func() {
suite.Assert().NotNil(recover(), "logger.Must did not panic")
}()
_ = logger.Must(nil, nil)
}
func (suite *LoggerSuite) TestShouldPanicWithError() {
defer func() {
suite.Assert().NotNil(recover(), "logger.Must did not panic")
}()
_ = logger.Must(nil, &ErrorForTest{"error", 400})
}
func (suite *LoggerSuite) TestCanCreateLogWithMust() {
log := logger.Must(logger.Create("test"), nil)
suite.Require().NotNil(log, "cannot create a logger.Logger")
}
func (suite *LoggerSuite) TestCanCreateWithNil() {
log := logger.CreateIfNil(nil, "test")
suite.Require().NotNil(log, "cannot create a logger.Logger")
log2 := logger.CreateIfNil(log, "test")
suite.Require().NotNil(log2, "cannot create a logger.Logger")
}
func (suite *LoggerSuite) TestCanLoadAndSaveWithContext() {
log := logger.Create("test")
suite.Require().NotNil(log, "cannot create a logger.Logger")
ctx := log.ToContext(context.Background())
restored, err := logger.FromContext(ctx)
suite.Assert().Nil(err, "Failed to retrieve a Logger from a context")
suite.Assert().NotNil(restored, "cannot retrieve a logger.Logger from a context")
_, err = logger.FromContext(context.Background())
suite.Assert().NotNil(err, "Failed to retrieve a Logger from a context")
}
func (suite *LoggerSuite) TestCanLoadFromContextWithLoggerSource() {
log := logger.Create("test")
suite.Require().NotNil(log, "cannot create a logger.Logger")
restored, err := logger.FromContext(context.Background(), log)
suite.Require().NoError(err, "Failed to retrieve a Logger from a context")
suite.Assert().Equal(log, restored, "Logger should be the same")
restored, err = logger.FromContext(context.Background(), *log)
suite.Require().NoError(err, "Failed to retrieve a Logger from a context")
suite.Assert().Equal(log, restored, "Logger should be the same")
}
func (suite *LoggerSuite) TestCanLoadFromContextWithObjectSource() {
user := &User{"123", "John Doe", logger.Create("test")}
restored, err := logger.FromContext(context.Background(), user)
suite.Require().NoError(err, "Failed to retrieve a Logger from a context")
suite.Assert().Equal(user.GetLogger(), restored, "Logger should be the same")
}
func (suite *LoggerSuite) TestShouldFailLoadingFromContextWithoutLogger() {
_, err := logger.FromContext(context.Background())
suite.Require().NotNil(err, "Context should not contain a Logger")
suite.Assert().True(errors.Is(err, errors.ArgumentMissing), "error should be an Argument Missing error")
details := errors.ArgumentMissing.Clone()
suite.Require().ErrorAs(err, &details, "Error chain should contain an errors.ArgumentMissing")
suite.Assert().Equal("Logger", details.What, "Error's What is wrong")
}
func (suite *LoggerSuite) TestShouldFailLoadingFromNilContext() {
_, err := logger.FromContext(nil) //nolint
suite.Require().NotNil(err, "Context should not contain a Logger")
suite.Assert().True(errors.Is(err, errors.ArgumentMissing), "error should be an Argument Missing error")
details := errors.ArgumentMissing.Clone()
suite.Require().ErrorAs(err, &details, "Error chain should contain an errors.ArgumentMissing")
suite.Assert().Equal("Logger", details.What, "Error's What is wrong")
}
func (suite *LoggerSuite) TestCanAddRecord() {
log := logger.Create("test")
suite.Require().NotNil(log, "cannot create a logger.Logger")
log = log.Record("test", "test")
suite.Require().NotNil(log, "Failed to add a Record \"test\"")
suite.Assert().Equal("test", log.GetRecord("test").(string))
log = log.Recordf("testf", "now: %s", time.Now())
suite.Assert().NotNil(log.GetRecord("testf"), "Failed to add Recordf")
log2 := log.Records()
suite.Assert().Equal(log, log2, "Failed to add no records")
suite.Assert().Nil(log.GetRecord("unknown"), "Logger should not have a Record \"unknown\"")
}
func (suite *LoggerSuite) TestCanSetTopic() {
log := logger.Create("test")
suite.Require().NotNil(log, "cannot create a logger.Logger")
log = log.Topic("topic_test")
suite.Require().NotNil(log.GetTopic(), "Failed to set a Topic")
suite.Assert().Equal("topic_test", log.GetTopic(), "Failed to set a Topic")
}
func (suite *LoggerSuite) TestCanSetTopicWithNilValue() {
log := logger.Create("test")
suite.Require().NotNil(log, "cannot create a logger.Logger")
log = log.Topic(nil)
suite.Require().NotNil(log.GetTopic(), "Failed to set a Topic")
suite.Assert().Equal("main", log.GetTopic(), "Failed to set a Topic")
}
func (suite *LoggerSuite) TestCanSetScope() {
log := logger.Create("test")
suite.Require().NotNil(log, "cannot create a logger.Logger")
log = log.Scope("scope_test")
suite.Require().NotNil(log.GetScope(), "Failed to set a Scope")
suite.Assert().Equal("scope_test", log.GetScope(), "Failed to set a Scope")
}
func (suite *LoggerSuite) TestCanSetScopeWithNilValue() {
log := logger.Create("test")
suite.Require().NotNil(log, "cannot create a logger.Logger")
log = log.Scope(nil)
suite.Require().NotNil(log.GetScope(), "Failed to set a Scope")
suite.Assert().Equal("main", log.GetScope(), "Failed to set a Scope")
}
func (suite *LoggerSuite) TestCanGetTopic() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
suite.Assert().Equal("main", log.GetTopic())
}
func (suite *LoggerSuite) TestCanGetTopicFromChild() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
suite.Assert().Equal("main", log.GetTopic())
log = log.Child("child", "scope")
suite.Assert().Equal("child", log.GetTopic())
}
func (suite *LoggerSuite) TestCanGetTopicFromChildWithAddedRecord() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
suite.Assert().Equal("main", log.GetTopic())
log = log.Child("child", "scope")
suite.Assert().Equal("child", log.GetTopic())
log = log.Record("data", "data")
suite.Assert().Equal("child", log.GetTopic())
}
func (suite *LoggerSuite) TestCanGetTopicInheritedByChild() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
suite.Assert().Equal("main", log.GetTopic())
log = log.Child(nil, "scope")
suite.Assert().Equal("main", log.GetTopic())
}
func (suite *LoggerSuite) TestCanSetLevelsPerTopic() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.SetFilterLevel(logger.INFO)
suite.Assert().True(log.ShouldWrite(logger.INFO, "main", ""), "Logger should write INFO messages for main topic before it is configured")
suite.Assert().False(log.ShouldWrite(logger.DEBUG, "main", ""), "Logger should not write DEBUG messages for main topic before it is configured")
suite.Assert().Equal(logger.NewLevelSet(logger.INFO), log.GetFilterLevels())
log.SetFilterLevel(logger.DEBUG, "main")
suite.Assert().True(log.ShouldWrite(logger.WARN, "", ""), "Logger should write WARN messages")
suite.Assert().False(log.ShouldWrite(logger.DEBUG, "", ""), "Logger should not write DEBUG messages")
suite.Assert().True(log.ShouldWrite(logger.DEBUG, "main", ""), "Logger should write DEBUG messages for main topic")
suite.Assert().False(log.ShouldWrite(logger.TRACE, "main", ""), "Logger should not write TRACE messages for main topic")
suite.Assert().True(log.ShouldWrite(logger.INFO, "another_topic", ""), "Logger should write INFO messages for another_topic topic")
suite.Assert().False(log.ShouldWrite(logger.DEBUG, "another_topic", ""), "Logger should not write DEBUG messages for another_topic topic")
}
func (suite *LoggerSuite) TestCanSetLevelsPerTopicAndScope() {
// DEBUG:TRACE{topic1:scope1, topic2:scope2}
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.SetFilterLevel(logger.INFO)
suite.Assert().True(log.ShouldWrite(logger.INFO, "main", "any"), "Logger should write INFO messages for main topic and any scope before it is configured")
suite.Assert().False(log.ShouldWrite(logger.DEBUG, "main", "any"), "Logger should not write DEBUG messages for main topic and any scope before it is configured")
log.SetFilterLevel(logger.TRACE, "main", "specific")
log.SetFilterLevel(logger.DEBUG, "main")
suite.Assert().True(log.ShouldWrite(logger.DEBUG, "main", "any"), "Logger should write DEBUG messages for main topic and any scope")
suite.Assert().True(log.ShouldWrite(logger.TRACE, "main", "specific"), "Logger should write TRACE messages for main topic and specific scope")
suite.Assert().False(log.ShouldWrite(logger.TRACE, "main", "any"), "Logger should not write TRACE messages for main topic and any scope")
suite.Assert().False(log.ShouldWrite(logger.DEBUG, "another_topic", "any"), "Logger should not write DEBUG messages for another_topic topic and any scope")
}
func (suite *LoggerSuite) TestCanLogAtTrace() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.Tracef("test of file destination")
})
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
lines = lines[0 : len(lines)-1] // remove the last empty line
suite.Require().Len(lines, 1, "There should be 1 line in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "10",
"msg": `test of file destination`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogAtDebug() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.Debugf("test of file destination")
})
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
lines = lines[0 : len(lines)-1] // remove the last empty line
suite.Require().Len(lines, 1, "There should be 1 line in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "20",
"msg": `test of file destination`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogAtInfo() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.Infof("test of file destination")
})
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
lines = lines[0 : len(lines)-1] // remove the last empty line
suite.Require().Len(lines, 1, "There should be 1 line in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": `test of file destination`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogAtWarn() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.Warnf("test of file destination")
})
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
lines = lines[0 : len(lines)-1] // remove the last empty line
suite.Require().Len(lines, 1, "There should be 1 line in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "40",
"msg": `test of file destination`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogErrorWithDetails() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
err := &ErrorForTest{Errno: "ENOFOUND", Code: 12}
log.Errorf("Got an error with number: %d", 2, err)
})
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
lines = lines[0 : len(lines)-1] // remove the last empty line
suite.Require().Len(lines, 1, "There should be 1 line in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "50",
"err": `map\[Code:12 Errno:ENOFOUND\]`,
"msg": `Got an error with number: 2`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogAtFatal() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
err := &ErrorForTest{"testerror", 400}
log.Fatalf("test of file destination", err)
})
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
lines = lines[0 : len(lines)-1] // remove the last empty line
suite.Require().Len(lines, 1, "There should be 1 line in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "60",
"err": `map\[Code:400 Errno:testerror\]`,
"msg": `test of file destination`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogNested() {
log, teardown := CreateLogger("test.log", true)
defer teardown()
suite.Require().NotNil(log, "cannot create a logger.Logger")
log.Infof("test with main topic")
{
expensiveLog := log.Record("key1", "value1").Record("key2", "value2")
expensiveLog.Debugf("testing with expensive records")
suite.T().Logf("Expensive Log (+2 Records): %s", expensiveLog)
}
{
innerLog := log.Child("inner", "local", "temperature", "high", "vehicle", "car")
time.Sleep(1 * time.Second)
innerLog.Infof("testing with inner topic")
suite.T().Logf("Inner Log (+3 Records): %s", innerLog)
{
innerMostLog := innerLog.Records("temperature", "low", "wind", "strong")
innerMostLog.Debugf("testing with inner most log")
suite.T().Logf("Innermost Log (+3 Records): %s", innerMostLog)
}
}
log.Infof("test with main topic is over")
}
func (suite *LoggerSuite) TestCanLogWithFilter() {
folder, teardown := CreateTempDir()
defer teardown()
path := filepath.Join(folder, "test.log")
stream := &logger.FileStream{Path: path, FilterLevels: logger.NewLevelSet(logger.INFO), Unbuffered: true}
log := logger.Create("test", stream)
log.Record("bello", "banana").Record("だれ", "Me").Infof("Log at INFO")
log.Record("stuff", "other").Record("thing", "shiny").Debugf("Log at DEBUG")
log.Flush()
content, err := os.ReadFile(stream.Path)
suite.Require().Nil(err, "Failed to read %s", stream.Path)
record := &logger.Record{}
err = json.Unmarshal(content, &record)
suite.Require().Nil(err, "Failed to unmarshal %s", stream.Path)
//suite.Assert().Contains(record, "bello")
}
func (suite *LoggerSuite) TestShouldFailWithBogusStream() {
output := CaptureStderr(func() {
log := logger.Create("test", &BogusStream{})
log.Infof("test")
})
lines := strings.Split(output, "\n")
suite.Require().Len(lines, 24, "There should be 4 lines in the log output, found %d", len(lines))
suite.Assert().Equal("Logger error: Runtime Error", lines[0])
suite.Assert().Equal("Caused by:", lines[1])
suite.Assert().Equal("\tThis Stream is Bogus", lines[2])
suite.Assert().Equal("github.com/gildas/go-logger.(*Logger).send", lines[3])
suite.Assert().Equal("github.com/gildas/go-logger.(*Logger).Infof", lines[5])
}
func (suite *LoggerSuite) TestLoggerHttpHandlerWithSuccess() {
httpHandler := func() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log, err := logger.FromContext(r.Context())
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
count, err := w.Write([]byte("test"))
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
log.Errorf("Failed to write response", err)
return
}
log.Infof("Written %d bytes", count)
})
}
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
suite.Require().NotNil(log, "cannot create a logger.Logger")
req := httptest.NewRequest(http.MethodGet, "/", nil)
w := httptest.NewRecorder()
log.HttpHandler()(httpHandler()).ServeHTTP(w, req)
res := w.Result()
suite.Assert().Equal(http.StatusOK, res.StatusCode)
defer res.Body.Close()
data, err := io.ReadAll(res.Body)
suite.Require().NoError(err, "Failed to read response body")
suite.Assert().Contains(string(data), "test")
})
lines := strings.Split(output, "\n")
lines = lines[:len(lines)-1] // remove the last empty line
suite.Require().Len(lines, 3, "Expected 3 lines of output")
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": `request start: GET /`,
"name": "test",
"path": "/",
"pid": "[0-9]+",
"remote": `[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+`,
"reqid": `^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$`,
"scope": "/",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "route",
"verb": "GET",
"v": "0",
})
suite.LogLineEqual(lines[1], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": `Written 4 bytes`,
"name": "test",
"path": "/",
"pid": "[0-9]+",
"remote": `[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+`,
"reqid": `^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$`,
"scope": "/",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "route",
"v": "0",
})
suite.LogLineEqual(lines[2], map[string]string{
"duration": `[0-9\.]+`,
"hostname": `[a-zA-Z_0-9\-\.]+`,
"http_status": "200",
"level": "30",
"msg": `request finish: GET / in [0-9]+(?:\.[0-9]+)?µs`,
"name": "test",
"path": "/",
"pid": "[0-9]+",
"remote": `[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+`,
"reqid": `^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$`,
"scope": "/",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "route",
"v": "0",
"written": "4",
})
}
func (suite *LoggerSuite) TestLoggerHttpHandlerWithFailure() {
httpHandler := func() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log, err := logger.FromContext(r.Context())
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNotFound)
log.Errorf("Unknown path: %s", r.URL.Path)
})
}
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
suite.Require().NotNil(log, "cannot create a logger.Logger")
req := httptest.NewRequest(http.MethodGet, "/", nil)
w := httptest.NewRecorder()
log.HttpHandler()(httpHandler()).ServeHTTP(w, req)
res := w.Result()
suite.Assert().Equal(http.StatusNotFound, res.StatusCode)
})
lines := strings.Split(output, "\n")
lines = lines[:len(lines)-1] // remove the last empty line
suite.Require().Len(lines, 3, "Expected 3 lines of output")
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": strconv.Itoa(int(logger.INFO)),
"msg": `request start: GET /`,
"name": "test",
"path": "/",
"pid": "[0-9]+",
"remote": `[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+`,
"reqid": `^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$`,
"scope": "/",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "route",
"verb": "GET",
"v": "0",
})
suite.LogLineEqual(lines[1], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": strconv.Itoa(int(logger.ERROR)),
"msg": `Unknown path: /`,
"name": "test",
"path": "/",
"pid": "[0-9]+",
"remote": `[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+`,
"reqid": `^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$`,
"scope": "/",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "route",
"v": "0",
})
suite.LogLineEqual(lines[2], map[string]string{
"duration": `[0-9\.]+`,
"hostname": `[a-zA-Z_0-9\-\.]+`,
"http_status": "404",
"level": strconv.Itoa(int(logger.ERROR)),
"msg": `request finish: GET / in [0-9]+(?:\.[0-9]+)?µs`,
"name": "test",
"path": "/",
"pid": "[0-9]+",
"remote": `[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+`,
"reqid": `^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$`,
"scope": "/",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "route",
"v": "0",
"written": "0",
})
}
func (suite *LoggerSuite) TestCanUseWithIOWriter() {
output := CaptureStdout(func() {
logger := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log := log.New(logger.Writer(), "", 0)
log.Print("This is a Standard Log message")
})
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "This is a Standard Log message",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanUseWithIOWriterWithLevel() {
output := CaptureStdout(func() {
l := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log := log.New(l.Writer(logger.WARN), "", 0)
log.Print("This is a Standard Log message")
})
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "40",
"msg": "This is a Standard Log message",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanUseWithStandardLog() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true}).AsStandardLog()
log.Print("This is a Standard Log message")
})
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "This is a Standard Log message",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanUseWithStandardLogWithLevel() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true}).AsStandardLog(logger.WARN)
log.Print("This is a Standard Log message")
})
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "40",
"msg": "This is a Standard Log message",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogAtErrorWithNilError() {
log, teardown := CreateLogger("test.log", true)
defer func() {
suite.Assert().Nil(recover(), "logger.Errorf did panic")
teardown()
}()
suite.Require().NotNil(log, "cannot create a logger.Logger")
log.Errorf("Houston, we have a problem", nil)
}
func (suite *LoggerSuite) TestCanLogAtFatalWithNilError() {
log, teardown := CreateLogger("test.log", true)
defer func() {
suite.Assert().Nil(recover(), "logger.Fatalf did panic")
teardown()
}()
suite.Require().NotNil(log, "cannot create a logger.Logger")
log.Fatalf("Houston, we have a problem", nil)
}
func (suite *LoggerSuite) TestCanLogMemory() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true, FilterLevels: logger.NewLevelSet(logger.TRACE)})
log.Memory()
})
suite.Require().NotEmpty(output, "There was no output")
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "10",
"msg": `Heap\(Alloc = [0-9]+\.[0-9]{2}[GMK]iB, System = [0-9]+\.[0-9]{2}[GMK]iB\), Stack\(Alloc = [0-9]+\.[0-9]{2}[GMK]iB, System = [0-9]+\.[0-9]{2}[GMK]iB\), NumGC = [0-9]+`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogMemoryWithLevel() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true, FilterLevels: logger.NewLevelSet(logger.TRACE)})
log.Memoryl(logger.INFO)
})
suite.Require().NotEmpty(output, "There was no output")
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": `Heap\(Alloc = [0-9]+\.[0-9]{2}[GMK]iB, System = [0-9]+\.[0-9]{2}[GMK]iB\), Stack\(Alloc = [0-9]+\.[0-9]{2}[GMK]iB, System = [0-9]+\.[0-9]{2}[GMK]iB\), NumGC = [0-9]+`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogMemoryWithMessage() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true, FilterLevels: logger.NewLevelSet(logger.TRACE)})
log.Memoryf("Text %d:", 2)
})
suite.Require().NotEmpty(output, "There was no output")
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "10",
"msg": `Text 2: Heap\(Alloc = [0-9]+\.[0-9]{2}[GMK]iB, System = [0-9]+\.[0-9]{2}[GMK]iB\), Stack\(Alloc = [0-9]+\.[0-9]{2}[GMK]iB, System = [0-9]+\.[0-9]{2}[GMK]iB\), NumGC = [0-9]+`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogMemoryWithMessageWithLevelAndMessage() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true, FilterLevels: logger.NewLevelSet(logger.TRACE)})
log.Memorylf(logger.INFO, "Text %d:", 2)
})
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": `Text 2: Heap\(Alloc = [0-9]+\.[0-9]{2}[GMK]iB, System = [0-9]+\.[0-9]{2}[GMK]iB\), Stack\(Alloc = [0-9]+\.[0-9]{2}[GMK]iB, System = [0-9]+\.[0-9]{2}[GMK]iB\), NumGC = [0-9]+`,
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanFilterMore() {
log := logger.Create("TEST")
log.FilterMore()
// We cannot do this unfortunately:
// suite.Assert().Equal(logger.WARN, log.FilterLevel)
}
func (suite *LoggerSuite) TestCanFilterLess() {
log := logger.Create("TEST")
log.FilterLess()
// We cannot do this unfortunately:
// suite.Assert().Equal(logger.DEBUG, log.FilterLevel)
}
func (suite *LoggerSuite) TestCanLogAtDifferentLevelsPerTopic() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.SetFilterLevel(logger.DEBUG, "child")
log = log.Child("child", nil)
log.Debugf("message")
})
suite.Require().NotEmpty(output, "There was no output")
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "20",
"msg": "message",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "child",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogAtDifferentLevelsPerTopicAndEmptyScope() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.SetFilterLevel(logger.DEBUG, "child")
log = log.Child("child", "")
log.Debugf("message")
})
suite.Require().NotEmpty(output, "There was no output")
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "20",
"msg": "message",
"name": "test",
"pid": "[0-9]+",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "hild",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogWithEmptyTopicAndEmptyScope() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.SetFilterLevel(logger.DEBUG, "child")
log = log.Child("", "")
log.Infof("message")
})
suite.Require().NotEmpty(output, "There was no output")
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "message",
"name": "test",
"pid": "[0-9]+",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogAtDifferentLevelsPerTopicAndScope() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.SetFilterLevel(logger.DEBUG, "child", "scope")
log = log.Child("child", "scope")
log.Debugf("message")
})
suite.Require().NotEmpty(output, "There was no output")
suite.LogLineEqual(output, map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "20",
"msg": "message",
"name": "test",
"pid": "[0-9]+",
"scope": "scope",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "child",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogTimedFunc() {
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
log.TimeFunc("code", func() {
log.Infof("message")
time.Sleep(500 * time.Millisecond)
})
})
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
suite.Require().Len(lines, 3, "There should be 3 lines in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "message",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
suite.LogLineEqual(lines[1], map[string]string{
"duration": `[0-9]+\.[0-9]+`,
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "code. executed in [0-9]+.[0-9]+ms",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogTimedFuncWithReturnedValue() {
var result interface{}
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
code := func() int {
log.Infof("message")
time.Sleep(500 * time.Millisecond)
return 12
}
result = log.TimeFuncV("code", func() interface{} {
return code()
})
})
suite.Assert().NotNil(result, "There was no result")
suite.Assert().Equal(12, result.(int), "The result is not 12")
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
suite.Require().Len(lines, 3, "There should be 3 lines in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "message",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
suite.LogLineEqual(lines[1], map[string]string{
"duration": `[0-9]+\.[0-9]+`,
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "code. executed in [0-9]+.[0-9]+ms",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
}
func (suite *LoggerSuite) TestCanLogTimedFuncWithReturnedError() {
var err error
output := CaptureStdout(func() {
log := logger.Create("test", &logger.StdoutStream{Unbuffered: true})
err = log.TimeFuncE("code", func() error {
log.Infof("message")
time.Sleep(500 * time.Millisecond)
return errors.New("error")
})
})
suite.Assert().Error(err, "There was no error")
suite.Require().NotEmpty(output, "There was no output")
lines := strings.Split(output, "\n")
suite.Require().Len(lines, 3, "There should be 3 lines in the log output, found %d", len(lines))
suite.LogLineEqual(lines[0], map[string]string{
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "message",
"name": "test",
"pid": "[0-9]+",
"scope": "main",
"tid": "[0-9]+",
"time": `[0-9]+-[0-9]+-[0-9]+T[0-9]+:[0-9]+:[0-9]+Z`,
"topic": "main",
"v": "0",
})
suite.LogLineEqual(lines[1], map[string]string{
"duration": `[0-9]+\.[0-9]+`,
"hostname": `[a-zA-Z_0-9\-\.]+`,
"level": "30",
"msg": "code. executed in [0-9]+.[0-9]+ms",
"name": "test",
"pid": "[0-9]+",
"scope": "main",