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// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Package testlog provides a log handler for unit tests.
package testlog
import (
"testing"
"github.com/ethereum/go-ethereum/log"
)
// Logger returns a logger which logs to the unit test log of t.
func Logger(t *testing.T, level log.Lvl) log.Logger {
l := log.New()
l.SetHandler(Handler(t, level))
return l
}
// Handler returns a log handler which logs to the unit test log of t.
func Handler(t *testing.T, level log.Lvl) log.Handler {
return log.LvlFilterHandler(level, &handler{t, log.TerminalFormat(false)})
}
type handler struct {
t *testing.T
fmt log.Format
}
func (h *handler) Log(r *log.Record) error {
h.t.Logf("%s", h.fmt.Format(r))
return nil
}
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