[#355] morph/event: Add container estimate size events

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
This commit is contained in:
Alex Vanin 2021-01-28 18:01:54 +03:00 committed by Alex Vanin
parent db94ad5567
commit 7a7a351f1f
2 changed files with 146 additions and 0 deletions

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package container
import (
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
"github.com/pkg/errors"
)
// StartEstimation structure of container.StartEstimation notification from
// morph chain.
type StartEstimation struct {
epoch uint64
}
// StopEstimation structure of container.StopEstimation notification from
// morph chain.
type StopEstimation struct {
epoch uint64
}
// MorphEvent implements Neo:Morph Event interface.
func (StartEstimation) MorphEvent() {}
// MorphEvent implements Neo:Morph Event interface.
func (StopEstimation) MorphEvent() {}
// Epoch returns epoch value for which to start container size estimation.
func (s StartEstimation) Epoch() uint64 { return s.epoch }
// Epoch returns epoch value for which to stop container size estimation.
func (s StopEstimation) Epoch() uint64 { return s.epoch }
// ParseStartEstimation from notification into container event structure.
func ParseStartEstimation(params []stackitem.Item) (event.Event, error) {
epoch, err := parseEstimation(params)
if err != nil {
return nil, err
}
return StartEstimation{epoch: epoch}, nil
}
// ParseStopEstimation from notification into container event structure.
func ParseStopEstimation(params []stackitem.Item) (event.Event, error) {
epoch, err := parseEstimation(params)
if err != nil {
return nil, err
}
return StopEstimation{epoch: epoch}, nil
}
func parseEstimation(params []stackitem.Item) (uint64, error) {
if ln := len(params); ln != 1 {
return 0, event.WrongNumberOfParameters(1, ln)
}
// parse container
epoch, err := client.IntFromStackItem(params[0])
if err != nil {
return 0, errors.Wrap(err, "could not get estimation epoch")
}
return uint64(epoch), nil
}

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package container
import (
"math/big"
"testing"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
"github.com/stretchr/testify/require"
)
func TestStartEstimation(t *testing.T) {
var epochNum uint64 = 100
epochItem := stackitem.NewBigInteger(new(big.Int).SetUint64(epochNum))
t.Run("wrong number of parameters", func(t *testing.T) {
prms := []stackitem.Item{
stackitem.NewMap(),
stackitem.NewMap(),
}
_, err := ParseStartEstimation(prms)
require.EqualError(t, err, event.WrongNumberOfParameters(1, len(prms)).Error())
})
t.Run("wrong estimation parameter", func(t *testing.T) {
_, err := ParseStartEstimation([]stackitem.Item{
stackitem.NewMap(),
})
require.Error(t, err)
})
t.Run("correct behavior", func(t *testing.T) {
ev, err := ParseStartEstimation([]stackitem.Item{
epochItem,
})
require.NoError(t, err)
require.Equal(t, StartEstimation{
epochNum,
}, ev)
})
}
func TestStopEstimation(t *testing.T) {
var epochNum uint64 = 100
epochItem := stackitem.NewBigInteger(new(big.Int).SetUint64(epochNum))
t.Run("wrong number of parameters", func(t *testing.T) {
prms := []stackitem.Item{
stackitem.NewMap(),
stackitem.NewMap(),
}
_, err := ParseStopEstimation(prms)
require.EqualError(t, err, event.WrongNumberOfParameters(1, len(prms)).Error())
})
t.Run("wrong estimation parameter", func(t *testing.T) {
_, err := ParseStopEstimation([]stackitem.Item{
stackitem.NewMap(),
})
require.Error(t, err)
})
t.Run("correct behavior", func(t *testing.T) {
ev, err := ParseStopEstimation([]stackitem.Item{
epochItem,
})
require.NoError(t, err)
require.Equal(t, StopEstimation{
epochNum,
}, ev)
})
}