[ Go / Golang ] Get the current file and line in runtime

fileline.go

package fileline

import (
	"fmt"
	"os"
	"runtime"
	"strings"
)

//Location returns an absolute path of the caller file and the line number.
func Location() string {
	_, file, line, _ := runtime.Caller(1)
	p, _ := os.Getwd()
	return fmt.Sprintf("%s:%d", strings.TrimPrefix(file, p), line)
}

fileline_test.go

package filelinetest

import (
	"./fileline"
	"github.com/stretchr/testify/require"
	"testing"
)

func TestLocation(t *testing.T) {
	location := fileline.Location()
	require.Equal(t, "/fileline_test.go:10", location)

	location = fileline.Location()
	require.Equal(t, "/fileline_test.go:13", location)
}