github.com/hasnat/dolt/go@v0.0.0-20210628190320-9eb5d843fbb7/store/datas/serialize_hashes_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 datas
    23  
    24  import (
    25  	"bytes"
    26  	"testing"
    27  
    28  	"github.com/stretchr/testify/assert"
    29  
    30  	"github.com/dolthub/dolt/go/store/chunks"
    31  	"github.com/dolthub/dolt/go/store/hash"
    32  )
    33  
    34  func TestHashRoundTrip(t *testing.T) {
    35  	b := &bytes.Buffer{}
    36  	input := chunks.ReadBatch{
    37  		hash.Parse("00000000000000000000000000000000"): nil,
    38  		hash.Parse("00000000000000000000000000000001"): nil,
    39  		hash.Parse("00000000000000000000000000000002"): nil,
    40  		hash.Parse("00000000000000000000000000000003"): nil,
    41  	}
    42  	defer input.Close()
    43  
    44  	err := serializeHashes(b, input)
    45  	assert.NoError(t, err)
    46  	output, err := deserializeHashes(b)
    47  	assert.NoError(t, err)
    48  	assert.Len(t, output, len(input), "Output has different number of elements than input: %v, %v", output, input)
    49  	for _, h := range output {
    50  		_, present := input[h]
    51  		assert.True(t, present, "%s is in output but not in input", h)
    52  	}
    53  }