| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| package p2c |
| |
| import ( |
| "math/rand" |
| "testing" |
| ) |
| |
| import ( |
| "github.com/golang/mock/gomock" |
| |
| "github.com/stretchr/testify/assert" |
| ) |
| |
| import ( |
| "dubbo.apache.org/dubbo-go/v3/cluster/metrics" |
| "dubbo.apache.org/dubbo-go/v3/common" |
| "dubbo.apache.org/dubbo-go/v3/protocol" |
| protoinvoc "dubbo.apache.org/dubbo-go/v3/protocol/invocation" |
| ) |
| |
| func TestLoadBalance(t *testing.T) { |
| lb := newP2CLoadBalance() |
| invocation := protoinvoc.NewRPCInvocation("TestMethod", []interface{}{}, nil) |
| randSeed := func() int64 { |
| return 0 |
| } |
| |
| t.Run("no invokers", func(t *testing.T) { |
| rand.Seed(randSeed()) |
| ivk := lb.Select([]protocol.Invoker{}, invocation) |
| assert.Nil(t, ivk) |
| }) |
| |
| t.Run("one invoker", func(t *testing.T) { |
| rand.Seed(randSeed()) |
| url0, _ := common.NewURL("dubbo://192.168.1.0:20000/com.ikurento.user.UserProvider") |
| |
| ivkArr := []protocol.Invoker{ |
| protocol.NewBaseInvoker(url0), |
| } |
| ivk := lb.Select(ivkArr, invocation) |
| assert.Equal(t, ivkArr[0].GetURL().String(), ivk.GetURL().String()) |
| }) |
| |
| t.Run("two invokers", func(t *testing.T) { |
| rand.Seed(randSeed()) |
| ctrl := gomock.NewController(t) |
| defer ctrl.Finish() |
| |
| m := metrics.NewMockMetrics(ctrl) |
| metrics.LocalMetrics = m |
| |
| url0, _ := common.NewURL("dubbo://192.168.1.0:20000/com.ikurento.user.UserProvider") |
| url1, _ := common.NewURL("dubbo://192.168.1.1:20000/com.ikurento.user.UserProvider") |
| |
| m.EXPECT(). |
| GetMethodMetrics(gomock.Eq(url0), gomock.Eq(invocation.MethodName()), gomock.Eq(metrics.HillClimbing)). |
| Times(1). |
| Return(uint64(10), nil) |
| m.EXPECT(). |
| GetMethodMetrics(gomock.Eq(url1), gomock.Eq(invocation.MethodName()), gomock.Eq(metrics.HillClimbing)). |
| Times(1). |
| Return(uint64(5), nil) |
| |
| ivkArr := []protocol.Invoker{ |
| protocol.NewBaseInvoker(url0), |
| protocol.NewBaseInvoker(url1), |
| } |
| |
| ivk := lb.Select(ivkArr, invocation) |
| |
| assert.Equal(t, ivkArr[0].GetURL().String(), ivk.GetURL().String()) |
| }) |
| |
| t.Run("multiple invokers", func(t *testing.T) { |
| rand.Seed(randSeed()) |
| ctrl := gomock.NewController(t) |
| defer ctrl.Finish() |
| |
| m := metrics.NewMockMetrics(ctrl) |
| metrics.LocalMetrics = m |
| |
| url0, _ := common.NewURL("dubbo://192.168.1.0:20000/com.ikurento.user.UserProvider") |
| url1, _ := common.NewURL("dubbo://192.168.1.1:20000/com.ikurento.user.UserProvider") |
| url2, _ := common.NewURL("dubbo://192.168.1.2:20000/com.ikurento.user.UserProvider") |
| |
| m.EXPECT(). |
| GetMethodMetrics(gomock.Eq(url0), gomock.Eq(invocation.MethodName()), gomock.Eq(metrics.HillClimbing)). |
| Times(1). |
| Return(uint64(10), nil) |
| m.EXPECT(). |
| GetMethodMetrics(gomock.Eq(url1), gomock.Eq(invocation.MethodName()), gomock.Eq(metrics.HillClimbing)). |
| Times(1). |
| Return(uint64(5), nil) |
| |
| ivkArr := []protocol.Invoker{ |
| protocol.NewBaseInvoker(url0), |
| protocol.NewBaseInvoker(url1), |
| protocol.NewBaseInvoker(url2), |
| } |
| |
| ivk := lb.Select(ivkArr, invocation) |
| |
| assert.Equal(t, ivkArr[0].GetURL().String(), ivk.GetURL().String()) |
| }) |
| |
| t.Run("metrics i not found", func(t *testing.T) { |
| rand.Seed(randSeed()) |
| ctrl := gomock.NewController(t) |
| defer ctrl.Finish() |
| |
| m := metrics.NewMockMetrics(ctrl) |
| metrics.LocalMetrics = m |
| |
| url0, _ := common.NewURL("dubbo://192.168.1.0:20000/com.ikurento.user.UserProvider") |
| url1, _ := common.NewURL("dubbo://192.168.1.1:20000/com.ikurento.user.UserProvider") |
| url2, _ := common.NewURL("dubbo://192.168.1.2:20000/com.ikurento.user.UserProvider") |
| |
| m.EXPECT(). |
| GetMethodMetrics(gomock.Eq(url0), gomock.Eq(invocation.MethodName()), gomock.Eq(metrics.HillClimbing)). |
| Times(1). |
| Return(0, metrics.ErrMetricsNotFound) |
| |
| ivkArr := []protocol.Invoker{ |
| protocol.NewBaseInvoker(url0), |
| protocol.NewBaseInvoker(url1), |
| protocol.NewBaseInvoker(url2), |
| } |
| |
| ivk := lb.Select(ivkArr, invocation) |
| |
| assert.Equal(t, ivkArr[0].GetURL().String(), ivk.GetURL().String()) |
| }) |
| |
| t.Run("metrics j not found", func(t *testing.T) { |
| rand.Seed(randSeed()) |
| ctrl := gomock.NewController(t) |
| defer ctrl.Finish() |
| |
| m := metrics.NewMockMetrics(ctrl) |
| metrics.LocalMetrics = m |
| |
| url0, _ := common.NewURL("dubbo://192.168.1.0:20000/com.ikurento.user.UserProvider") |
| url1, _ := common.NewURL("dubbo://192.168.1.1:20000/com.ikurento.user.UserProvider") |
| url2, _ := common.NewURL("dubbo://192.168.1.2:20000/com.ikurento.user.UserProvider") |
| |
| m.EXPECT(). |
| GetMethodMetrics(gomock.Eq(url0), gomock.Eq(invocation.MethodName()), gomock.Eq(metrics.HillClimbing)). |
| Times(1). |
| Return(uint64(0), nil) |
| |
| m.EXPECT(). |
| GetMethodMetrics(gomock.Eq(url1), gomock.Eq(invocation.MethodName()), gomock.Eq(metrics.HillClimbing)). |
| Times(1). |
| Return(uint64(0), metrics.ErrMetricsNotFound) |
| |
| ivkArr := []protocol.Invoker{ |
| protocol.NewBaseInvoker(url0), |
| protocol.NewBaseInvoker(url1), |
| protocol.NewBaseInvoker(url2), |
| } |
| |
| ivk := lb.Select(ivkArr, invocation) |
| |
| assert.Equal(t, ivkArr[1].GetURL().String(), ivk.GetURL().String()) |
| }) |
| |
| } |