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Merge pull request #11005 from tbg/interactiontest
raft/rafttest: introduce datadriven testing
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| // Copyright 2019 The etcd Authors | ||
| // | ||
| // 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, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package raft_test | ||
|
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| import ( | ||
| "testing" | ||
|
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| "github.com/cockroachdb/datadriven" | ||
| "go.etcd.io/etcd/raft/rafttest" | ||
| ) | ||
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| func TestInteraction(t *testing.T) { | ||
| datadriven.Walk(t, "testdata", func(t *testing.T, path string) { | ||
| env := rafttest.NewInteractionEnv(nil) | ||
| datadriven.RunTest(t, path, func(d *datadriven.TestData) string { | ||
| return env.Handle(t, *d) | ||
| }) | ||
| }) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| // Copyright 2019 The etcd Authors | ||
| // | ||
| // 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, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
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| package rafttest | ||
|
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| import ( | ||
| "fmt" | ||
| "math" | ||
| "strings" | ||
|
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| "go.etcd.io/etcd/raft" | ||
| pb "go.etcd.io/etcd/raft/raftpb" | ||
| ) | ||
|
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| // InteractionOpts groups the options for an InteractionEnv. | ||
| type InteractionOpts struct { | ||
| OnConfig func(*raft.Config) | ||
| } | ||
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| // A Node is a member of a raft group tested via an InteractionEnv. | ||
| type Node struct { | ||
| *raft.RawNode | ||
| Storage | ||
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| Config *raft.Config | ||
| History []pb.Snapshot | ||
| } | ||
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| // InteractionEnv facilitates testing of complex interactions between the | ||
| // members of a raft group. | ||
| type InteractionEnv struct { | ||
| Options *InteractionOpts | ||
| Nodes []Node | ||
| Messages []pb.Message // in-flight messages | ||
|
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| Output *RedirectLogger | ||
| } | ||
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| // NewInteractionEnv initializes an InteractionEnv. opts may be nil. | ||
| func NewInteractionEnv(opts *InteractionOpts) *InteractionEnv { | ||
| if opts == nil { | ||
| opts = &InteractionOpts{} | ||
| } | ||
| return &InteractionEnv{ | ||
| Options: opts, | ||
| Output: &RedirectLogger{ | ||
| Builder: &strings.Builder{}, | ||
| }, | ||
| } | ||
| } | ||
|
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| // Storage is the interface used by InteractionEnv. It is comprised of raft's | ||
| // Storage interface plus access to operations that maintain the log and drive | ||
| // the Ready handling loop. | ||
| type Storage interface { | ||
| raft.Storage | ||
| SetHardState(state pb.HardState) error | ||
| ApplySnapshot(pb.Snapshot) error | ||
| Compact(newFirstIndex uint64) error | ||
| Append([]pb.Entry) error | ||
| } | ||
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| // defaultRaftConfig sets up a *raft.Config with reasonable testing defaults. | ||
| // In particular, no limits are set. | ||
| func defaultRaftConfig(id uint64, applied uint64, s raft.Storage) *raft.Config { | ||
| return &raft.Config{ | ||
| ID: id, | ||
| Applied: applied, | ||
| ElectionTick: 3, | ||
| HeartbeatTick: 1, | ||
| Storage: s, | ||
| MaxSizePerMsg: math.MaxUint64, | ||
| MaxInflightMsgs: math.MaxInt32, | ||
| } | ||
| } | ||
|
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| func defaultEntryFormatter(b []byte) string { | ||
| return fmt.Sprintf("%q", b) | ||
| } |
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