frostfs-node/pkg/local_object_storage/engine/shards_test.go

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package engine
import (
"context"
"testing"
"github.com/stretchr/testify/require"
)
func TestRemoveShard(t *testing.T) {
const numOfShards = 6
te := testNewEngine(t).setShardsNum(t, numOfShards)
e, ids := te.engine, te.shardIDs
t.Cleanup(func() {
e.Close(context.Background())
})
require.Equal(t, numOfShards, len(e.shardPools))
require.Equal(t, numOfShards, len(e.shards))
removedNum := numOfShards / 2
mSh := make(map[string]bool, numOfShards)
for i, id := range ids {
if i == removedNum {
break
}
mSh[id.String()] = true
}
for id, remove := range mSh {
if remove {
e.removeShards(id)
}
}
require.Equal(t, numOfShards-removedNum, len(e.shardPools))
require.Equal(t, numOfShards-removedNum, len(e.shards))
for id, removed := range mSh {
_, ok := e.shards[id]
require.True(t, ok != removed)
}
}