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// Copyright 2017 Canonical Ltd.
//
// Licensed 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 network
import (
"strconv"
"testing"
"github.com/hashicorp/raft"
"github.com/stretchr/testify/assert"
)
func TestStringifyLogs(t *testing.T) {
cases := []struct {
logs []*raft.Log
text string
}{
{
[]*raft.Log{},
"0 entries",
},
{
[]*raft.Log{
{Type: raft.LogNoop, Term: 1, Index: 1},
},
"1 entry [Noop:term=1,index=1]",
},
{
[]*raft.Log{
{Type: raft.LogNoop, Term: 1, Index: 1},
{Type: raft.LogCommand, Term: 1, Index: 2},
},
"2 entries [Noop:term=1,index=1 Command:term=1,index=2]",
},
}
for _, c := range cases {
t.Run(c.text, func(t *testing.T) {
assert.Equal(t, c.text, stringifyLogs(c.logs))
})
}
}
func TestFilterLogsWithOlderTerms(t *testing.T) {
cases := []struct {
title string
in []*raft.Log
out []*raft.Log
}{
{
"one log",
[]*raft.Log{
{Type: raft.LogNoop, Term: 1, Index: 1},
},
[]*raft.Log{
{Type: raft.LogNoop, Term: 1, Index: 1},
},
},
{
"two logs, one has an older term",
[]*raft.Log{
{Type: raft.LogNoop, Term: 1, Index: 1},
{Type: raft.LogNoop, Term: 2, Index: 2},
},
[]*raft.Log{
{Type: raft.LogNoop, Term: 2, Index: 2},
},
},
}
for i, c := range cases {
t.Run(strconv.Itoa(i), func(t *testing.T) {
assert.Equal(t, c.out, filterLogsWithOlderTerms(c.in))
})
}
}
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