mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-23 13:55:42 +03:00
66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package util
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
type readerWithError struct {
|
|
buf *bytes.Buffer
|
|
}
|
|
|
|
func (r *readerWithError) Read(p []byte) (n int, err error) {
|
|
if r.buf.Len() < 2 {
|
|
return 0, errors.New("test error")
|
|
}
|
|
return r.buf.Read(p)
|
|
}
|
|
|
|
func TestReadWithLimit(t *testing.T) {
|
|
bs := []byte("0123456789abcdef")
|
|
|
|
// normal test
|
|
buf, err := readWithLimit(bytes.NewBuffer(bs), 5, 2)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, []byte("01"), buf)
|
|
|
|
buf, err = readWithLimit(bytes.NewBuffer(bs), 5, 5)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, []byte("01234"), buf)
|
|
|
|
buf, err = readWithLimit(bytes.NewBuffer(bs), 5, 6)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, []byte("012345"), buf)
|
|
|
|
buf, err = readWithLimit(bytes.NewBuffer(bs), 5, len(bs))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, []byte("0123456789abcdef"), buf)
|
|
|
|
buf, err = readWithLimit(bytes.NewBuffer(bs), 5, 100)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, []byte("0123456789abcdef"), buf)
|
|
|
|
// test with error
|
|
buf, err = readWithLimit(&readerWithError{bytes.NewBuffer(bs)}, 5, 10)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, []byte("0123456789"), buf)
|
|
|
|
buf, err = readWithLimit(&readerWithError{bytes.NewBuffer(bs)}, 5, 100)
|
|
assert.ErrorContains(t, err, "test error")
|
|
assert.Empty(t, buf)
|
|
|
|
// test public function
|
|
buf, err = ReadWithLimit(bytes.NewBuffer(bs), 2)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, []byte("01"), buf)
|
|
|
|
buf, err = ReadWithLimit(bytes.NewBuffer(bs), 9999999)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, []byte("0123456789abcdef"), buf)
|
|
}
|