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| 1 | +/* |
| 2 | +Copyright IBM Corp. 2017 All Rights Reserved. |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package producer |
| 18 | + |
| 19 | +import ( |
| 20 | + "context" |
| 21 | + "io" |
| 22 | + "testing" |
| 23 | + "time" |
| 24 | + |
| 25 | + "github.com/hyperledger/fabric/core/comm" |
| 26 | + "github.com/hyperledger/fabric/protos/peer" |
| 27 | + ehpb "github.com/hyperledger/fabric/protos/peer" |
| 28 | + "github.com/hyperledger/fabric/protos/utils" |
| 29 | + "github.com/spf13/viper" |
| 30 | + "github.com/stretchr/testify/assert" |
| 31 | + "google.golang.org/grpc" |
| 32 | +) |
| 33 | + |
| 34 | +var peerAddress = "0.0.0.0:60303" |
| 35 | + |
| 36 | +type client struct { |
| 37 | + conn *grpc.ClientConn |
| 38 | + stream peer.Events_ChatClient |
| 39 | +} |
| 40 | + |
| 41 | +func newClient() *client { |
| 42 | + conn, err := comm.NewClientConnectionWithAddress(peerAddress, true, false, nil) |
| 43 | + if err != nil { |
| 44 | + panic(err) |
| 45 | + } |
| 46 | + |
| 47 | + stream, err := peer.NewEventsClient(conn).Chat(context.Background()) |
| 48 | + if err != nil { |
| 49 | + panic(err) |
| 50 | + } |
| 51 | + |
| 52 | + cl := &client{ |
| 53 | + conn: conn, |
| 54 | + stream: stream, |
| 55 | + } |
| 56 | + go cl.processEvents() |
| 57 | + return cl |
| 58 | +} |
| 59 | + |
| 60 | +func (c *client) register(ies []*peer.Interest) error { |
| 61 | + emsg := &peer.Event{Event: &peer.Event_Register{Register: &peer.Register{Events: ies}}, Creator: signerSerialized} |
| 62 | + se, err := utils.GetSignedEvent(emsg, signer) |
| 63 | + if err != nil { |
| 64 | + return err |
| 65 | + } |
| 66 | + return c.stream.Send(se) |
| 67 | +} |
| 68 | + |
| 69 | +func (c *client) unregister(ies []*peer.Interest) error { |
| 70 | + emsg := &peer.Event{Event: &peer.Event_Unregister{Unregister: &peer.Unregister{Events: ies}}, Creator: signerSerialized} |
| 71 | + se, err := utils.GetSignedEvent(emsg, signer) |
| 72 | + if err != nil { |
| 73 | + return err |
| 74 | + } |
| 75 | + return c.stream.Send(se) |
| 76 | +} |
| 77 | + |
| 78 | +func (c *client) processEvents() error { |
| 79 | + defer c.stream.CloseSend() |
| 80 | + for { |
| 81 | + _, err := c.stream.Recv() |
| 82 | + if err == io.EOF { |
| 83 | + return nil |
| 84 | + } |
| 85 | + if err != nil { |
| 86 | + return err |
| 87 | + } |
| 88 | + } |
| 89 | +} |
| 90 | + |
| 91 | +func TestEvents(t *testing.T) { |
| 92 | + test := func(duration time.Duration) { |
| 93 | + t.Log(duration) |
| 94 | + f := func() { |
| 95 | + Send(nil) |
| 96 | + } |
| 97 | + assert.Panics(t, f) |
| 98 | + Send(&peer.Event{}) |
| 99 | + gEventProcessorBck := gEventProcessor |
| 100 | + gEventProcessor = nil |
| 101 | + e, err := createEvent() |
| 102 | + assert.NoError(t, err) |
| 103 | + Send(e) |
| 104 | + gEventProcessor = gEventProcessorBck |
| 105 | + Send(e) |
| 106 | + } |
| 107 | + for _, timeout := range []time.Duration{0, -1, 1} { |
| 108 | + gEventProcessor.timeout = timeout |
| 109 | + test(timeout) |
| 110 | + } |
| 111 | +} |
| 112 | + |
| 113 | +func TestDeRegister(t *testing.T) { |
| 114 | + f := func() { |
| 115 | + deRegisterHandler(nil, nil) |
| 116 | + } |
| 117 | + assert.Panics(t, f) |
| 118 | + assert.Error(t, deRegisterHandler(&peer.Interest{EventType: 100}, nil)) |
| 119 | + assert.Error(t, deRegisterHandler(&peer.Interest{EventType: peer.EventType_BLOCK}, nil)) |
| 120 | +} |
| 121 | + |
| 122 | +func TestRegister(t *testing.T) { |
| 123 | + f := func() { |
| 124 | + registerHandler(nil, nil) |
| 125 | + } |
| 126 | + assert.Panics(t, f) |
| 127 | + |
| 128 | + // attempt to register handlers (invalid type or nil handlers) |
| 129 | + assert.Error(t, registerHandler(&peer.Interest{EventType: 100}, nil)) |
| 130 | + |
| 131 | + // attempt to register valid handler |
| 132 | + recvChan := make(chan *streamEvent) |
| 133 | + stream := &mockstream{c: recvChan} |
| 134 | + handler, err := newEventHandler(stream) |
| 135 | + assert.Nil(t, err, "error should have been nil") |
| 136 | + assert.NoError(t, registerHandler(&peer.Interest{EventType: peer.EventType_BLOCK}, handler)) |
| 137 | +} |
| 138 | + |
| 139 | +func TestProcessEvents(t *testing.T) { |
| 140 | + cl := newClient() |
| 141 | + interests := []*peer.Interest{ |
| 142 | + {EventType: peer.EventType_BLOCK}, |
| 143 | + {EventType: peer.EventType_CHAINCODE, RegInfo: &peer.Interest_ChaincodeRegInfo{ChaincodeRegInfo: &peer.ChaincodeReg{ChaincodeId: "0xffffffff", EventName: "event1"}}}, |
| 144 | + {EventType: peer.EventType_CHAINCODE, RegInfo: &peer.Interest_ChaincodeRegInfo{ChaincodeRegInfo: &peer.ChaincodeReg{ChaincodeId: "0xffffffff", EventName: "event2"}}}, |
| 145 | + } |
| 146 | + cl.register(interests) |
| 147 | + e, err := createEvent() |
| 148 | + assert.NoError(t, err) |
| 149 | + go Send(e) |
| 150 | + time.Sleep(time.Second * 2) |
| 151 | + cl.unregister(interests) |
| 152 | + time.Sleep(time.Second * 2) |
| 153 | +} |
| 154 | + |
| 155 | +func TestInitializeEvents_twice(t *testing.T) { |
| 156 | + initializeEventsTwice := func() { |
| 157 | + initializeEvents( |
| 158 | + uint(viper.GetInt("peer.events.buffersize")), |
| 159 | + viper.GetDuration("peer.events.timeout")) |
| 160 | + } |
| 161 | + assert.Panics(t, initializeEventsTwice) |
| 162 | +} |
| 163 | + |
| 164 | +func TestAddEventType_alreadyDefined(t *testing.T) { |
| 165 | + assert.Error(t, AddEventType(ehpb.EventType_CHAINCODE), "chaincode type already defined") |
| 166 | +} |
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