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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package lsmkv
import (
"context"
"os"
"testing"
"github.com/sirupsen/logrus/hooks/test"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/weaviate/weaviate/entities/cyclemanager"
)
type bucketTest struct {
name string
f func(context.Context, *testing.T, []BucketOption)
opts []BucketOption
}
type bucketTests []bucketTest
func (tests bucketTests) run(ctx context.Context, t *testing.T) {
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
t.Run("mmap", func(t *testing.T) {
test.f(ctx, t, test.opts)
})
t.Run("pread", func(t *testing.T) {
test.f(ctx, t, append([]BucketOption{WithPread(true)}, test.opts...))
})
})
}
}
func TestBucket(t *testing.T) {
ctx := context.Background()
tests := bucketTests{
{
name: "bucket_WasDeleted_KeepTombstones",
f: bucket_WasDeleted_KeepTombstones,
opts: []BucketOption{
WithStrategy(StrategyReplace),
WithKeepTombstones(true),
},
},
{
name: "bucket_WasDeleted_CleanupTombstones",
f: bucket_WasDeleted_CleanupTombstones,
opts: []BucketOption{
WithStrategy(StrategyReplace),
},
},
{
name: "bucketReadsIntoMemory",
f: bucketReadsIntoMemory,
opts: []BucketOption{
WithStrategy(StrategyReplace),
WithSecondaryIndices(1),
},
},
}
tests.run(ctx, t)
}
func bucket_WasDeleted_KeepTombstones(ctx context.Context, t *testing.T, opts []BucketOption) {
tmpDir := t.TempDir()
logger, _ := test.NewNullLogger()
b, err := NewBucket(ctx, tmpDir, "", logger, nil,
cyclemanager.NewCallbackGroupNoop(), cyclemanager.NewCallbackGroupNoop(), opts...)
require.Nil(t, err)
t.Cleanup(func() {
require.Nil(t, b.Shutdown(context.Background()))
})
var (
key = []byte("key")
val = []byte("value")
)
t.Run("insert object", func(t *testing.T) {
err = b.Put(key, val)
require.Nil(t, err)
})
t.Run("assert object was not deleted yet", func(t *testing.T) {
deleted, err := b.WasDeleted(key)
require.Nil(t, err)
assert.False(t, deleted)
})
t.Run("delete object", func(t *testing.T) {
err = b.Delete(key)
require.Nil(t, err)
})
t.Run("assert object was deleted", func(t *testing.T) {
deleted, err := b.WasDeleted(key)
require.Nil(t, err)
assert.True(t, deleted)
})
t.Run("assert a nonexistent object is not detected as deleted", func(t *testing.T) {
deleted, err := b.WasDeleted([]byte("DNE"))
require.Nil(t, err)
assert.False(t, deleted)
})
}
func bucket_WasDeleted_CleanupTombstones(ctx context.Context, t *testing.T, opts []BucketOption) {
tmpDir := t.TempDir()
logger, _ := test.NewNullLogger()
b, err := NewBucket(ctx, tmpDir, "", logger, nil,
cyclemanager.NewCallbackGroupNoop(), cyclemanager.NewCallbackGroupNoop(), opts...)
require.NoError(t, err)
t.Cleanup(func() {
require.NoError(t, b.Shutdown(context.Background()))
})
var (
key = []byte("key")
val = []byte("value")
)
t.Run("insert object", func(t *testing.T) {
err = b.Put(key, val)
require.Nil(t, err)
})
t.Run("fails on WasDeleted without keepTombstones set (before delete)", func(t *testing.T) {
deleted, err := b.WasDeleted(key)
require.ErrorContains(t, err, "keepTombstones")
require.False(t, deleted)
})
t.Run("delete object", func(t *testing.T) {
err = b.Delete(key)
require.Nil(t, err)
})
t.Run("fails on WasDeleted without keepTombstones set (after delete)", func(t *testing.T) {
deleted, err := b.WasDeleted(key)
require.ErrorContains(t, err, "keepTombstones")
require.False(t, deleted)
})
t.Run("fails on WasDeleted without keepTombstones set (non-existent key)", func(t *testing.T) {
deleted, err := b.WasDeleted([]byte("DNE"))
require.ErrorContains(t, err, "keepTombstones")
require.False(t, deleted)
})
}
func bucketReadsIntoMemory(ctx context.Context, t *testing.T, opts []BucketOption) {
dirName := t.TempDir()
logger, _ := test.NewNullLogger()
b, err := NewBucket(ctx, dirName, "", logger, nil,
cyclemanager.NewCallbackGroupNoop(), cyclemanager.NewCallbackGroupNoop(), opts...)
require.Nil(t, err)
defer b.Shutdown(ctx)
require.Nil(t, b.Put([]byte("hello"), []byte("world"),
WithSecondaryKey(0, []byte("bonjour"))))
require.Nil(t, b.FlushMemtable())
files, err := os.ReadDir(b.dir)
require.Nil(t, err)
_, ok := findFileWithExt(files, ".bloom")
assert.True(t, ok)
_, ok = findFileWithExt(files, "secondary.0.bloom")
assert.True(t, ok)
b2, err := NewBucket(ctx, b.dir, "", logger, nil,
cyclemanager.NewCallbackGroupNoop(), cyclemanager.NewCallbackGroupNoop(), opts...)
require.Nil(t, err)
defer b2.Shutdown(ctx)
valuePrimary, err := b2.Get([]byte("hello"))
require.Nil(t, err)
valueSecondary := make([]byte, 5)
valueSecondary, _, err = b2.GetBySecondaryIntoMemory(0, []byte("bonjour"), valueSecondary)
require.Nil(t, err)
assert.Equal(t, []byte("world"), valuePrimary)
assert.Equal(t, []byte("world"), valueSecondary)
}
func TestBucket_MemtableCountWithFlushing(t *testing.T) {
b := Bucket{
// by using an empty segment group for the disk portion, we can test the
// memtable portion in isolation
disk: &SegmentGroup{},
}
tests := []struct {
name string
current *countStats
previous *countStats
expectedNetActive int
expectedNetPrevious int
expectedNetTotal int
}{
{
name: "only active, only additions",
current: &countStats{
upsertKeys: [][]byte{[]byte("key-1")},
},
expectedNetActive: 1,
},
{
name: "only active, both additions and deletions",
current: &countStats{
upsertKeys: [][]byte{[]byte("key-1")},
// no key with key-2 ever existed, so this does not alter the net count
tombstonedKeys: [][]byte{[]byte("key-2")},
},
expectedNetActive: 1,
},
{
name: "an deletion that was previously added",
current: &countStats{
tombstonedKeys: [][]byte{[]byte("key-a")},
},
previous: &countStats{
upsertKeys: [][]byte{[]byte("key-a")},
},
expectedNetActive: -1,
expectedNetPrevious: 1,
expectedNetTotal: 0,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
actualActive := b.memtableNetCount(tt.current, tt.previous)
assert.Equal(t, tt.expectedNetActive, actualActive)
if tt.previous != nil {
actualPrevious := b.memtableNetCount(tt.previous, nil)
assert.Equal(t, tt.expectedNetPrevious, actualPrevious)
assert.Equal(t, tt.expectedNetTotal, actualPrevious+actualActive)
}
})
}
}
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