github.com/weaviate/weaviate@v1.24.6/adapters/repos/db/lsmkv/segment_serialization_test.go (about)

     1  //                           _       _
     2  // __      _____  __ ___   ___  __ _| |_ ___
     3  // \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
     4  //  \ V  V /  __/ (_| |\ V /| | (_| | ||  __/
     5  //   \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
     6  //
     7  //  Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
     8  //
     9  //  CONTACT: hello@weaviate.io
    10  //
    11  
    12  package lsmkv
    13  
    14  import (
    15  	"bytes"
    16  	"testing"
    17  
    18  	"github.com/stretchr/testify/assert"
    19  	"github.com/stretchr/testify/require"
    20  )
    21  
    22  func Test_SerializeAndParseCollectionNode(t *testing.T) {
    23  	before := segmentCollectionNode{
    24  		primaryKey: []byte("this-is-my-primary-key"),
    25  		values: []value{{
    26  			value: []byte("the-first-value"),
    27  		}, {
    28  			value:     []byte("the-second-value-with-a-tombstone"),
    29  			tombstone: true,
    30  		}},
    31  	}
    32  
    33  	buf := &bytes.Buffer{}
    34  	_, err := before.KeyIndexAndWriteTo(buf)
    35  	require.Nil(t, err)
    36  	encoded := buf.Bytes()
    37  
    38  	expected := segmentCollectionNode{
    39  		primaryKey: []byte("this-is-my-primary-key"),
    40  		values: []value{{
    41  			value: []byte("the-first-value"),
    42  		}, {
    43  			value:     []byte("the-second-value-with-a-tombstone"),
    44  			tombstone: true,
    45  		}},
    46  		offset: buf.Len(),
    47  	}
    48  
    49  	t.Run("parse using the _regular_ way", func(t *testing.T) {
    50  		after, err := ParseCollectionNode(bytes.NewReader(encoded))
    51  		assert.Nil(t, err)
    52  		assert.Equal(t, expected, after)
    53  	})
    54  
    55  	t.Run("parse using the reusable way", func(t *testing.T) {
    56  		var node segmentCollectionNode
    57  		err := ParseCollectionNodeInto(bytes.NewReader(encoded), &node)
    58  		assert.Nil(t, err)
    59  		assert.Equal(t, expected, node)
    60  	})
    61  }