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e62417297d
% find -name '*.go' -o -name '*.md' -o -name '*.sh' | xargs sed -i --follow-symlinks 's|etcd/v3/raft|etcd/raft/v3|g'
73 lines
1.7 KiB
Go
73 lines
1.7 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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 rafttest
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import (
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"testing"
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"time"
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"go.etcd.io/etcd/raft/v3/raftpb"
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)
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func TestNetworkDrop(t *testing.T) {
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// drop around 10% messages
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sent := 1000
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droprate := 0.1
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nt := newRaftNetwork(1, 2)
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nt.drop(1, 2, droprate)
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for i := 0; i < sent; i++ {
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nt.send(raftpb.Message{From: 1, To: 2})
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}
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c := nt.recvFrom(2)
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received := 0
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done := false
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for !done {
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select {
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case <-c:
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received++
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default:
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done = true
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}
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}
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drop := sent - received
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if drop > int((droprate+0.1)*float64(sent)) || drop < int((droprate-0.1)*float64(sent)) {
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t.Errorf("drop = %d, want around %.2f", drop, droprate*float64(sent))
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}
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}
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func TestNetworkDelay(t *testing.T) {
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sent := 1000
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delay := time.Millisecond
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delayrate := 0.1
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nt := newRaftNetwork(1, 2)
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nt.delay(1, 2, delay, delayrate)
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var total time.Duration
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for i := 0; i < sent; i++ {
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s := time.Now()
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nt.send(raftpb.Message{From: 1, To: 2})
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total += time.Since(s)
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}
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w := time.Duration(float64(sent)*delayrate/2) * delay
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// there is some overhead in the send call since it generates random numbers.
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if total < w {
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t.Errorf("total = %v, want > %v", total, w)
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}
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}
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