[#452] morph/client: Add reputation contract client wrapper

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

pkg/morph/client/reputation/wrapper/list.go

@@ -0,0 +1,55 @@
+package wrapper
+
+import (
+	reputationClient "github.com/nspcc-dev/neofs-node/pkg/morph/client/reputation"
+)
+
+type (
+	// ReputationID is an ID of the reputation record in reputation contract.
+	ReputationID []byte
+
+	// ListByEpochArgs groups the arguments of
+	// "list reputation ids by epoch" test invoke call.
+	ListByEpochArgs struct {
+		epoch uint64
+	}
+
+	// ListByEpochResult groups the result of "list reputation ids by epoch"
+	// test invoke.
+	ListByEpochResult struct {
+		ids []ReputationID
+	}
+)
+
+// SetEpoch sets epoch of expected reputation ids.
+func (l *ListByEpochArgs) SetEpoch(v uint64) {
+	l.epoch = v
+}
+
+// IDs returns slice of reputation id values.
+func (l ListByEpochResult) IDs() []ReputationID {
+	return l.ids
+}
+
+// ListByEpoch invokes the call of "list reputation ids by epoch" method of
+// reputation contract.
+func (w *ClientWrapper) ListByEpoch(v ListByEpochArgs) (*ListByEpochResult, error) {
+	args := reputationClient.ListByEpochArgs{}
+	args.SetEpoch(v.epoch)
+
+	data, err := (*reputationClient.Client)(w).ListByEpoch(args)
+	if err != nil {
+		return nil, err
+	}
+
+	ids := data.IDs()
+
+	result := make([]ReputationID, 0, len(ids))
+	for i := range ids {
+		result = append(result, ids[i])
+	}
+
+	return &ListByEpochResult{
+		ids: result,
+	}, nil
+}