file_logger_2_test.go

// -*- coding:utf-8; indent-tabs-mode:nil; -*-

// Copyright 2014, Wu Xi. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package logex

import (
	"errors"
	"fmt"
	"io/ioutil"
	"os"
	"runtime"
	"strconv"
	"strings"
	"testing"
	"time"
)

func TestNormalFileLogger(t *testing.T) {
	f := "test_normal_file_logger"
	os.Remove("./log/" + f + ".log")

	err := SetUpFileLogger("./log", f, func(now *time.Time, logfile *string) bool {
		return false
	})
	if err != nil {
		t.Fatal("set up error:", err)
	}

	_, _, line, _ := runtime.Caller(0)
	Notice("abc")
	if err := checkFile(f, NOTICE, line+1, "abc\n"); err != nil {
		t.Fatal(err)
	}
}

func checkFile(f string, level Level, lineno int, msg string) error {
	b, err := ioutil.ReadFile("./log/" + f + ".log")
	if err != nil {
		return err
	}

	a := strings.SplitN(string(b), ": ", 5)
	if len(a) != 5 {
		return errors.New("wrong log line format")
	}

	if levelStr[level] != a[0] {
		return errors.New(fmt.Sprintf("expect level=%q but actually is %q",
			levelStr[level], a[0]))
	}

	gid := strconv.Itoa(int(goid()))
	if gid != a[2][2:] {
		return errors.New(fmt.Sprintf("expect gid=%q but actually is %q",
			gid, a[2][2:]))
	}

	s := fmt.Sprintf("file_logger_2_test.go:%d", lineno)
	if s != a[3] {
		return errors.New(fmt.Sprintf("expect file:line=%q but actually is %q",
			s, a[3]))
	}

	if msg != a[4] {
		return errors.New(fmt.Sprintf("expect msg=%q but actually is %q",
			msg, a[4]))
	}

	return nil
}