dubbo.apache.org/dubbo-go/v3@v3.1.1/remoting/xds/mapping/handler_test.go (about)

     1  /*
     2   * Licensed to the Apache Software Foundation (ASF) under one or more
     3   * contributor license agreements.  See the NOTICE file distributed with
     4   * this work for additional information regarding copyright ownership.
     5   * The ASF licenses this file to You under the Apache License, Version 2.0
     6   * (the "License"); you may not use this file except in compliance with
     7   * the License.  You may obtain a copy of the License at
     8   *
     9   *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  
    18  package mapping
    19  
    20  import (
    21  	"net/http"
    22  	"os"
    23  	"testing"
    24  	"time"
    25  
    26  	"dubbo.apache.org/dubbo-go/v3/common/constant"
    27  	"dubbo.apache.org/dubbo-go/v3/remoting/xds/common"
    28  	"dubbo.apache.org/dubbo-go/v3/xds/client/mocks"
    29  	structpb "github.com/golang/protobuf/ptypes/struct"
    30  	"github.com/stretchr/testify/assert"
    31  	"github.com/stretchr/testify/mock"
    32  )
    33  
    34  const (
    35  	istioDebugPortFoo     = "38080"
    36  	istiodDebugAddrStrFoo = "127.0.0.1:" + istioDebugPortFoo
    37  	localPodServiceAddr   = "dubbo-go-app.default.svc.cluster.local:20000"
    38  	serviceKey1           = "providers:api.Greeter::"
    39  	serviceKey2           = "providers:grpc.reflection.v1alpha.ServerReflection::"
    40  	metadataService1      = `{"` + serviceKey1 + `":"` + localPodServiceAddr + `"}`
    41  	metadataService1And2  = `{"` + serviceKey1 + `":"` + localPodServiceAddr + `","` + serviceKey2 + `":"` + localPodServiceAddr + `"}`
    42  	metadataService2      = `{"` + serviceKey2 + `":"` + localPodServiceAddr + `"}`
    43  	metadataNoService     = `{}`
    44  	istioTokenPathFoo     = "/tmp/dubbo-go-mesh-test-token"
    45  	istioTokenFoo         = "mock-token"
    46  )
    47  
    48  func TestNewInterfaceMapHandler(t *testing.T) {
    49  	mockXDSClient := &mocks.XDSClient{}
    50  	interfaceMapHandler := NewInterfaceMapHandlerImpl(mockXDSClient, istioTokenPathFoo, common.NewHostNameOrIPAddr(istiodDebugAddrStrFoo), common.NewHostNameOrIPAddr(localPodServiceAddr), false)
    51  	assert.NotNil(t, interfaceMapHandler)
    52  }
    53  
    54  func TestInterfaceMapHandlerRegisterAndUnregister(t *testing.T) {
    55  	mockXDSClient := &mocks.XDSClient{}
    56  	mockXDSClient.On("SetMetadata", mock.AnythingOfType("*structpb.Struct")).Return(nil)
    57  
    58  	interfaceMapHandler := NewInterfaceMapHandlerImpl(mockXDSClient, istioTokenPathFoo, common.NewHostNameOrIPAddr(istiodDebugAddrStrFoo), common.NewHostNameOrIPAddr(localPodServiceAddr), false)
    59  
    60  	assert.Nil(t, interfaceMapHandler.Register(serviceKey1))
    61  	assert.Nil(t, interfaceMapHandler.Register(serviceKey2))
    62  	assert.Nil(t, interfaceMapHandler.UnRegister(serviceKey1))
    63  	assert.Nil(t, interfaceMapHandler.UnRegister(serviceKey2))
    64  
    65  	mockXDSClient.AssertCalled(t, "SetMetadata", mock.MatchedBy(getMatchFunction(metadataService1)))
    66  	mockXDSClient.AssertCalled(t, "SetMetadata", mock.MatchedBy(getMatchFunction(metadataService1And2)))
    67  	mockXDSClient.AssertCalled(t, "SetMetadata", mock.MatchedBy(getMatchFunction(metadataService2)))
    68  	mockXDSClient.AssertCalled(t, "SetMetadata", mock.MatchedBy(getMatchFunction(metadataNoService)))
    69  }
    70  
    71  func TestGetServiceUniqueKeyHostAddrMapFromPilot(t *testing.T) {
    72  	mockXDSClient := &mocks.XDSClient{}
    73  	interfaceMapHandler := NewInterfaceMapHandlerImpl(mockXDSClient, istioTokenPathFoo, common.NewHostNameOrIPAddr(istiodDebugAddrStrFoo), common.NewHostNameOrIPAddr(localPodServiceAddr), false)
    74  	assert.Nil(t, generateMockToken())
    75  
    76  	// 1. start mock http server
    77  	http.HandleFunc("/debug/adsz", func(writer http.ResponseWriter, request *http.Request) {
    78  		if len(request.Header[authorizationHeader]) != 1 {
    79  			writer.Write([]byte(""))
    80  			return
    81  		}
    82  		if request.Header[authorizationHeader][0] != istiodTokenPrefix+istioTokenFoo {
    83  			writer.Write([]byte(""))
    84  			return
    85  		}
    86  		writer.Write([]byte(debugAdszDataFoo))
    87  	})
    88  	go http.ListenAndServe(":"+istioDebugPortFoo, nil)
    89  	time.Sleep(time.Second)
    90  
    91  	// 2. get map from client
    92  	hostAddr1, err := interfaceMapHandler.GetHostAddrMap(serviceKey1)
    93  	assert.Nil(t, err)
    94  	assert.Equal(t, localPodServiceAddr, hostAddr1)
    95  
    96  	// 3. assert
    97  	hostAddr2, err := interfaceMapHandler.GetHostAddrMap(serviceKey2)
    98  	assert.Nil(t, err)
    99  	assert.Equal(t, localPodServiceAddr, hostAddr2)
   100  
   101  }
   102  
   103  func getMatchFunction(metadata string) func(abc *structpb.Struct) bool {
   104  	return func(abc *structpb.Struct) bool {
   105  		metadatas, ok := abc.Fields[constant.XDSMetadataLabelsKey]
   106  		if !ok {
   107  			return false
   108  		}
   109  		subFields := metadatas.GetStructValue().GetFields()
   110  		subValue, ok2 := subFields[constant.XDSMetadataDubboGoMapperKey]
   111  		if !ok2 {
   112  			return false
   113  		}
   114  		if subValue.GetStringValue() != metadata {
   115  			return false
   116  		}
   117  		return true
   118  	}
   119  }
   120  
   121  func generateMockToken() error {
   122  	return os.WriteFile(istioTokenPathFoo, []byte(istioTokenFoo), 0777)
   123  }