github.com/hasnat/dolt/go@v0.0.0-20210628190320-9eb5d843fbb7/store/chunks/chunk_serializer_test.go (about)

     1  // Copyright 2019 Dolthub, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  // This file incorporates work covered by the following copyright and
    16  // permission notice:
    17  //
    18  // Copyright 2016 Attic Labs, Inc. All rights reserved.
    19  // Licensed under the Apache License, version 2.0:
    20  // http://www.apache.org/licenses/LICENSE-2.0
    21  
    22  package chunks
    23  
    24  import (
    25  	"bytes"
    26  	"testing"
    27  
    28  	"github.com/stretchr/testify/assert"
    29  )
    30  
    31  func TestSerializeRoundTrip(t *testing.T) {
    32  	assert := assert.New(t)
    33  	inputs := [][]byte{[]byte("abc"), []byte("def")}
    34  	chnx := make([]Chunk, len(inputs))
    35  	for i, data := range inputs {
    36  		chnx[i] = NewChunk(data)
    37  	}
    38  
    39  	buf := &bytes.Buffer{}
    40  	Serialize(chnx[0], buf)
    41  	Serialize(chnx[1], buf)
    42  
    43  	chunkChan := make(chan *Chunk)
    44  	go func() {
    45  		defer close(chunkChan)
    46  		err := Deserialize(bytes.NewReader(buf.Bytes()), chunkChan)
    47  		assert.NoError(err)
    48  	}()
    49  
    50  	for c := range chunkChan {
    51  		assert.Equal(chnx[0].Hash(), c.Hash())
    52  		chnx = chnx[1:]
    53  	}
    54  	assert.Len(chnx, 0)
    55  }
    56  
    57  func TestBadSerialization(t *testing.T) {
    58  	bad := []byte{0, 1} // Not enough bytes to read first length
    59  	ch := make(chan *Chunk)
    60  	defer close(ch)
    61  	assert.Error(t, Deserialize(bytes.NewReader(bad), ch))
    62  }