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forgejo/modules/util/io_test.go
yp05327 22a39bb961
Fix profile render when the README.md size is larger than 1024 bytes (#25131)
Fixes https://github.com/go-gitea/gitea/issues/25094

`GetBlobContent` will only get the first 1024 bytes, if the README.md
size is larger than 1024 bytes,
We can not render the rest of them.
After this fix, we should provide the limited size to read when call
`GetBlobContent`.

After:

![image](https://github.com/go-gitea/gitea/assets/18380374/22a42936-4cf8-40b4-a5c7-e384082beb0d)

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2023-06-13 09:02:25 +00:00

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)
}