github.com/adnan-c/fabric_e2e_couchdb@v0.6.1-preview.0.20170228180935-21ce6b23cf91/orderer/kafka/broker_test.go (about) 1 /* 2 Copyright IBM Corp. 2016 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 kafka 18 19 import ( 20 "testing" 21 22 "github.com/Shopify/sarama" 23 "github.com/hyperledger/fabric/common/configtx/tool/provisional" 24 ) 25 26 func TestBrokerGetOffset(t *testing.T) { 27 t.Run("oldest", testBrokerGetOffsetFunc(sarama.OffsetOldest, testOldestOffset)) 28 t.Run("newest", testBrokerGetOffsetFunc(sarama.OffsetNewest, testNewestOffset)) 29 } 30 31 func testBrokerGetOffsetFunc(given, expected int64) func(t *testing.T) { 32 cp := newChainPartition(provisional.TestChainID, rawPartition) 33 return func(t *testing.T) { 34 mb, _ := mockNewBroker(t, cp) 35 defer testClose(t, mb) 36 37 ofs, _ := mb.GetOffset(cp, newOffsetReq(cp, given)) 38 if ofs != expected { 39 t.Fatalf("Expected offset %d, got %d instead", expected, ofs) 40 } 41 } 42 } 43 44 func TestNewBrokerReturnsPartitionLeader(t *testing.T) { 45 cp := newChainPartition(provisional.TestChainID, rawPartition) 46 broker1 := sarama.NewMockBroker(t, 1) 47 broker2 := sarama.NewMockBroker(t, 2) 48 broker3 := sarama.NewMockBroker(t, 3) 49 defer func() { 50 broker2.Close() 51 broker3.Close() 52 }() 53 54 // Use broker1 and broker2 as bootstrap brokers, but shutdown broker1 right away 55 broker1.Close() 56 57 // Add expectation that broker2 will return a metadata response 58 // that identifies broker3 as the topic partition leader 59 broker2.SetHandlerByMap(map[string]sarama.MockResponse{ 60 "MetadataRequest": sarama.NewMockMetadataResponse(t). 61 SetBroker(broker1.Addr(), broker1.BrokerID()). 62 SetBroker(broker2.Addr(), broker2.BrokerID()). 63 SetBroker(broker3.Addr(), broker3.BrokerID()). 64 SetLeader(cp.Topic(), cp.Partition(), broker3.BrokerID()), 65 }) 66 67 // Add expectation that broker3 responds to an offset request 68 broker3.SetHandlerByMap(map[string]sarama.MockResponse{ 69 "OffsetRequest": sarama.NewMockOffsetResponse(t). 70 SetOffset(cp.Topic(), cp.Partition(), sarama.OffsetOldest, testOldestOffset). 71 SetOffset(cp.Topic(), cp.Partition(), sarama.OffsetNewest, testNewestOffset), 72 }) 73 74 // Get leader for the test chain partition 75 leaderBroker, _ := newBroker([]string{broker1.Addr(), broker2.Addr()}, cp) 76 77 // Only broker3 will respond successfully to an offset request 78 offsetRequest := new(sarama.OffsetRequest) 79 offsetRequest.AddBlock(cp.Topic(), cp.Partition(), -1, 1) 80 if _, err := leaderBroker.GetOffset(cp, offsetRequest); err != nil { 81 t.Fatal("Expected leader broker to respond to request:", err) 82 } 83 }