Files
dolt/go/libraries/utils/buffer/buffer_test.go
2021-09-08 14:52:42 -07:00

50 lines
1.3 KiB
Go

// Copyright 2021 Dolthub, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package buffer
import (
"bytes"
"math/rand"
"strconv"
"testing"
"time"
"github.com/stretchr/testify/require"
)
func TestDynamicBuffer(t *testing.T) {
const blockSize = 53
rand := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := 0; i < 100; i++ {
n := 1000 + rand.Int63()%10000
t.Run(strconv.FormatInt(n, 10), func(t *testing.T) {
data := make([]byte, n)
read, err := rand.Read(data)
require.NoError(t, err)
require.Equal(t, int(n), read)
buf := New(blockSize)
buf.Append(data)
itr := buf.Close()
reassembled := bytes.NewBuffer(nil)
err = itr.FlushTo(reassembled)
require.NoError(t, err)
require.Equal(t, data, reassembled.Bytes())
})
}
}