grafana/pkg/infra/log/log_test.go

110 lines
3.2 KiB
Go

package log
import (
"fmt"
"testing"
"time"
gokitlog "github.com/go-kit/log"
"github.com/grafana/grafana/pkg/infra/log/level"
"github.com/stretchr/testify/require"
)
func TestLogger(t *testing.T) {
t.Run("Root logger should be initialized", func(t *testing.T) {
require.NotNil(t, root)
err := root.Log("msg", "hello")
require.NoError(t, err)
})
t.Run("When creating root logger should log as expected", func(t *testing.T) {
loggedArgs := [][]interface{}{}
l := gokitlog.LoggerFunc(func(i ...interface{}) error {
loggedArgs = append(loggedArgs, i)
return nil
})
mockedTime := time.Now()
origNow := now
now = func() time.Time {
return mockedTime
}
t.Cleanup(func() {
now = origNow
})
root = newManager(l)
log1 := New("one")
err := log1.Log("msg", "hello 1")
require.NoError(t, err)
log2 := New("two")
err = log2.Log("msg", "hello 2")
require.NoError(t, err)
log3 := New("three")
log3.Error("hello 3")
log4 := log3.New("key", "value")
err = log4.Log("msg", "hello 4")
require.NoError(t, err)
require.Len(t, loggedArgs, 4)
require.Len(t, loggedArgs[0], 4)
require.Equal(t, "logger", loggedArgs[0][0].(string))
require.Equal(t, "one", loggedArgs[0][1].(string))
require.Equal(t, "msg", loggedArgs[0][2].(string))
require.Equal(t, "hello 1", loggedArgs[0][3].(string))
require.Len(t, loggedArgs[1], 4)
require.Equal(t, "logger", loggedArgs[1][0].(string))
require.Equal(t, "two", loggedArgs[1][1].(string))
require.Equal(t, "msg", loggedArgs[1][2].(string))
require.Equal(t, "hello 2", loggedArgs[1][3].(string))
require.Len(t, loggedArgs[2], 8)
require.Equal(t, "logger", loggedArgs[2][0].(string))
require.Equal(t, "three", loggedArgs[2][1].(string))
require.Equal(t, "t", loggedArgs[2][2].(string))
require.Equal(t, mockedTime.Format("2006-01-02T15:04:05.99-0700"), loggedArgs[2][3].(fmt.Stringer).String())
require.Equal(t, "lvl", loggedArgs[2][4].(string))
require.Equal(t, level.ErrorValue(), loggedArgs[2][5].(level.Value))
require.Equal(t, "msg", loggedArgs[2][6].(string))
require.Equal(t, "hello 3", loggedArgs[2][7].(string))
require.Len(t, loggedArgs[3], 6)
require.Equal(t, "logger", loggedArgs[3][0].(string))
require.Equal(t, "three", loggedArgs[3][1].(string))
require.Equal(t, "key", loggedArgs[3][2].(string))
require.Equal(t, "value", loggedArgs[3][3].(string))
require.Equal(t, "msg", loggedArgs[3][4].(string))
require.Equal(t, "hello 4", loggedArgs[3][5].(string))
t.Run("When initializing root logger should swap loggers as expected", func(t *testing.T) {
swappedLoggedArgs := [][]interface{}{}
swapLogger := gokitlog.LoggerFunc(func(i ...interface{}) error {
swappedLoggedArgs = append(swappedLoggedArgs, i)
return nil
})
root.initialize([]logWithFilters{
{
val: swapLogger,
maxLevel: level.AllowInfo(),
},
{
val: swapLogger,
maxLevel: level.AllowAll(),
},
})
err := log1.Log("msg", "hello 1")
require.NoError(t, err)
err = log2.Log("msg", "hello 2")
require.NoError(t, err)
log3.Error("hello 3")
log3.Debug("debug")
require.Len(t, loggedArgs, 4)
require.Len(t, swappedLoggedArgs, 7, "expected 4 messages for AllowAll logger and 3 messages for AllowInfo logger")
})
})
}