Fantom-foundation/go-lachesis

package logger

import (
    "testing"

    "github.com/ethereum/go-ethereum/log"
)

// SetTestMode sets test mode.
func SetTestMode(t testing.TB) {
    log.Root().SetHandler(
        log.CallerStackHandler("%v", TestHandler(t, log.LogfmtFormat())))
}

// TestHandler writes into test log.
func TestHandler(t testing.TB, fmtr log.Format) log.Handler {
    return log.FuncHandler(func(r *log.Record) error {
        t.Log(string(fmtr.Format(r)))
        return nil
    })
}