Files
gitea/modules/util/io_test.go
T
silverwind 8abda62312 test: consolidate Go tests (#39962)
Consolidate all Go tests. Coverage is identical to before. Go tests are
around 5% faster while being 7% smaller. No non-test code is touched.
2026-10-24 13:48:19 +00:00

62 lines
1.3 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
for _, testCase := range []struct {
limit int
expected string
}{
{2, "01"},
{5, "01234"},
{6, "012345"},
{len(bs), "0123456789abcdef"},
{100, "0123456789abcdef"},
} {
buf, err := readWithLimit(bytes.NewBuffer(bs), 5, testCase.limit)
assert.NoError(t, err)
assert.Equal(t, []byte(testCase.expected), 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)
}