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operator_check.go
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operator_check.go
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// Copyright 2017 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package testutil
import (
check "github.com/pingcap/check"
"github.com/pingcap/pd/server/schedule"
)
// CheckAddPeer checks if the operator is to add peer on specified store.
func CheckAddPeer(c *check.C, op *schedule.Operator, kind schedule.OperatorKind, storeID uint64) {
c.Assert(op, check.NotNil)
c.Assert(op.Len(), check.Equals, 2)
c.Assert(op.Step(0).(schedule.AddLearner).ToStore, check.Equals, storeID)
c.Assert(op.Step(1), check.FitsTypeOf, schedule.PromoteLearner{})
kind |= schedule.OpRegion
c.Assert(op.Kind()&kind, check.Equals, kind)
}
// CheckRemovePeer checks if the operator is to remove peer on specified store.
func CheckRemovePeer(c *check.C, op *schedule.Operator, storeID uint64) {
if op.Len() == 1 {
c.Assert(op.Step(0).(schedule.RemovePeer).FromStore, check.Equals, storeID)
} else {
c.Assert(op.Len(), check.Equals, 2)
c.Assert(op.Step(0).(schedule.TransferLeader).FromStore, check.Equals, storeID)
c.Assert(op.Step(1).(schedule.RemovePeer).FromStore, check.Equals, storeID)
}
}
// CheckTransferLeader checks if the operator is to transfer leader between the specified source and target stores.
func CheckTransferLeader(c *check.C, op *schedule.Operator, kind schedule.OperatorKind, sourceID, targetID uint64) {
c.Assert(op, check.NotNil)
c.Assert(op.Len(), check.Equals, 1)
c.Assert(op.Step(0), check.Equals, schedule.TransferLeader{FromStore: sourceID, ToStore: targetID})
kind |= schedule.OpLeader
c.Assert(op.Kind()&kind, check.Equals, kind)
}
// CheckTransferLeaderFrom checks if the operator is to transfer leader out of the specified store.
func CheckTransferLeaderFrom(c *check.C, op *schedule.Operator, kind schedule.OperatorKind, sourceID uint64) {
c.Assert(op, check.NotNil)
c.Assert(op.Len(), check.Equals, 1)
c.Assert(op.Step(0).(schedule.TransferLeader).FromStore, check.Equals, sourceID)
kind |= schedule.OpLeader
c.Assert(op.Kind()&kind, check.Equals, kind)
}
// CheckTransferPeer checks if the operator is to transfer peer between the specified source and target stores.
func CheckTransferPeer(c *check.C, op *schedule.Operator, kind schedule.OperatorKind, sourceID, targetID uint64) {
c.Assert(op, check.NotNil)
if op.Len() == 3 {
c.Assert(op.Step(0).(schedule.AddLearner).ToStore, check.Equals, targetID)
c.Assert(op.Step(1), check.FitsTypeOf, schedule.PromoteLearner{})
c.Assert(op.Step(2).(schedule.RemovePeer).FromStore, check.Equals, sourceID)
} else {
c.Assert(op.Len(), check.Equals, 4)
c.Assert(op.Step(0).(schedule.AddLearner).ToStore, check.Equals, targetID)
c.Assert(op.Step(1), check.FitsTypeOf, schedule.PromoteLearner{})
c.Assert(op.Step(2).(schedule.TransferLeader).FromStore, check.Equals, sourceID)
c.Assert(op.Step(3).(schedule.RemovePeer).FromStore, check.Equals, sourceID)
kind |= schedule.OpLeader
}
kind |= schedule.OpRegion
c.Assert(op.Kind()&kind, check.Equals, kind)
}
// CheckTransferPeerWithLeaderTransfer checks if the operator is to transfer
// peer between the specified source and target stores and it meanwhile
// transfers the leader out of source store.
func CheckTransferPeerWithLeaderTransfer(c *check.C, op *schedule.Operator, kind schedule.OperatorKind, sourceID, targetID uint64) {
c.Assert(op, check.NotNil)
c.Assert(op.Len(), check.Equals, 4)
CheckTransferPeer(c, op, kind, sourceID, targetID)
}
// CheckTransferPeerWithLeaderTransferFrom checks if the operator is to transfer
// peer out of the specified store and it meanwhile transfers the leader out of
// the store.
func CheckTransferPeerWithLeaderTransferFrom(c *check.C, op *schedule.Operator, kind schedule.OperatorKind, sourceID uint64) {
c.Assert(op, check.NotNil)
c.Assert(op.Len(), check.Equals, 4)
c.Assert(op.Step(0), check.FitsTypeOf, schedule.AddLearner{})
c.Assert(op.Step(1), check.FitsTypeOf, schedule.PromoteLearner{})
c.Assert(op.Step(2), check.FitsTypeOf, schedule.TransferLeader{})
c.Assert(op.Step(3).(schedule.RemovePeer).FromStore, check.Equals, sourceID)
kind |= (schedule.OpRegion | schedule.OpLeader)
c.Assert(op.Kind()&kind, check.Equals, kind)
}