go-zero/core/iox/textfile_test.go
2020-07-26 17:09:05 +08:00

28 lines
397 B
Go

package iox
import (
"io/ioutil"
"os"
"testing"
"github.com/stretchr/testify/assert"
)
func TestCountLines(t *testing.T) {
const val = `1
2
3
4`
file, err := ioutil.TempFile(os.TempDir(), "test-")
if err != nil {
t.Fatal(err)
}
defer os.Remove(file.Name())
file.WriteString(val)
file.Close()
lines, err := CountLines(file.Name())
assert.Nil(t, err)
assert.Equal(t, 4, lines)
}