dubbo.apache.org/dubbo-go/v3@v3.1.1/cluster/loadbalance/leastactive/loadbalance_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 leastactive
    19  
    20  import (
    21  	"fmt"
    22  	"testing"
    23  )
    24  
    25  import (
    26  	"github.com/stretchr/testify/assert"
    27  )
    28  
    29  import (
    30  	"dubbo.apache.org/dubbo-go/v3/common"
    31  	"dubbo.apache.org/dubbo-go/v3/common/constant"
    32  	"dubbo.apache.org/dubbo-go/v3/protocol"
    33  	"dubbo.apache.org/dubbo-go/v3/protocol/invocation"
    34  )
    35  
    36  func TestLeastActiveSelect(t *testing.T) {
    37  	loadBalance := newLeastActiveLoadBalance()
    38  
    39  	var invokers []protocol.Invoker
    40  
    41  	url, _ := common.NewURL(fmt.Sprintf("dubbo://%s:%d/org.apache.demo.HelloService", constant.LocalHostValue, constant.DefaultPort))
    42  	invokers = append(invokers, protocol.NewBaseInvoker(url))
    43  	i := loadBalance.Select(invokers, &invocation.RPCInvocation{})
    44  	assert.True(t, i.GetURL().URLEqual(url))
    45  
    46  	for i := 1; i < 10; i++ {
    47  		url, _ := common.NewURL(fmt.Sprintf("dubbo://192.168.1.%v:20000/org.apache.demo.HelloService", i))
    48  		invokers = append(invokers, protocol.NewBaseInvoker(url))
    49  	}
    50  	loadBalance.Select(invokers, &invocation.RPCInvocation{})
    51  }
    52  
    53  func TestLeastActiveByWeight(t *testing.T) {
    54  	loadBalance := newLeastActiveLoadBalance()
    55  
    56  	var invokers []protocol.Invoker
    57  	loop := 3
    58  	for i := 1; i <= loop; i++ {
    59  		url, _ := common.NewURL(fmt.Sprintf("test%v://192.168.1.%v:20000/org.apache.demo.HelloService?weight=%v", i, i, i))
    60  		invokers = append(invokers, protocol.NewBaseInvoker(url))
    61  	}
    62  
    63  	inv := invocation.NewRPCInvocationWithOptions(invocation.WithMethodName("test"))
    64  	protocol.BeginCount(invokers[2].GetURL(), inv.MethodName())
    65  
    66  	loop = 10000
    67  
    68  	var (
    69  		firstCount  int
    70  		secondCount int
    71  	)
    72  
    73  	for i := 1; i <= loop; i++ {
    74  		invoker := loadBalance.Select(invokers, inv)
    75  		if invoker.GetURL().Protocol == "test1" {
    76  			firstCount++
    77  		} else if invoker.GetURL().Protocol == "test2" {
    78  			secondCount++
    79  		}
    80  	}
    81  
    82  	assert.Equal(t, firstCount+secondCount, loop)
    83  }