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83 lines
2.6 KiB
Go
83 lines
2.6 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proxy
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import (
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"context"
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"testing"
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"github.com/stretchr/testify/suite"
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)
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type RoundRobinBalancerSuite struct {
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suite.Suite
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balancer *RoundRobinBalancer
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}
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func (s *RoundRobinBalancerSuite) SetupTest() {
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s.balancer = NewRoundRobinBalancer()
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s.balancer.Start(context.Background())
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}
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func (s *RoundRobinBalancerSuite) TestRoundRobin() {
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availableNodes := []int64{1, 2}
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s.balancer.SelectNode(context.TODO(), availableNodes, 1)
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s.balancer.SelectNode(context.TODO(), availableNodes, 1)
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s.balancer.SelectNode(context.TODO(), availableNodes, 1)
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s.balancer.SelectNode(context.TODO(), availableNodes, 1)
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workload, ok := s.balancer.nodeWorkload.Get(1)
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s.True(ok)
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s.Equal(int64(2), workload.Load())
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workload, ok = s.balancer.nodeWorkload.Get(1)
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s.True(ok)
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s.Equal(int64(2), workload.Load())
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s.balancer.SelectNode(context.TODO(), availableNodes, 3)
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s.balancer.SelectNode(context.TODO(), availableNodes, 1)
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s.balancer.SelectNode(context.TODO(), availableNodes, 1)
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s.balancer.SelectNode(context.TODO(), availableNodes, 1)
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workload, ok = s.balancer.nodeWorkload.Get(1)
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s.True(ok)
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s.Equal(int64(5), workload.Load())
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workload, ok = s.balancer.nodeWorkload.Get(1)
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s.True(ok)
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s.Equal(int64(5), workload.Load())
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}
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func (s *RoundRobinBalancerSuite) TestNoAvailableNode() {
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availableNodes := []int64{}
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_, err := s.balancer.SelectNode(context.TODO(), availableNodes, 1)
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s.Error(err)
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}
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func (s *RoundRobinBalancerSuite) TestCancelWorkload() {
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availableNodes := []int64{101}
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_, err := s.balancer.SelectNode(context.TODO(), availableNodes, 5)
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s.NoError(err)
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workload, ok := s.balancer.nodeWorkload.Get(101)
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s.True(ok)
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s.Equal(int64(5), workload.Load())
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s.balancer.CancelWorkload(101, 5)
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s.Equal(int64(0), workload.Load())
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}
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func TestRoundRobinBalancerSuite(t *testing.T) {
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suite.Run(t, new(RoundRobinBalancerSuite))
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}
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