Spaces:
Running
Running
File size: 5,584 Bytes
b110593 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 |
// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package cluster
import (
"context"
"fmt"
"strings"
"sync"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestBroadcastOpenTransaction(t *testing.T) {
client := &fakeClient{}
state := &fakeState{hosts: []string{"host1", "host2", "host3"}}
bc := NewTxBroadcaster(state, client)
tx := &Transaction{ID: "foo"}
err := bc.BroadcastTransaction(context.Background(), tx)
require.Nil(t, err)
assert.ElementsMatch(t, []string{"host1", "host2", "host3"}, client.openCalled)
}
func TestBroadcastOpenTransactionWithReturnPayload(t *testing.T) {
client := &fakeClient{}
state := &fakeState{hosts: []string{"host1", "host2", "host3"}}
bc := NewTxBroadcaster(state, client)
bc.SetConsensusFunction(func(ctx context.Context,
in []*Transaction,
) (*Transaction, error) {
// instead of actually reaching a consensus this test mock simply merged
// all the individual results. For testing purposes this is even better
// because now we can be sure that every element was considered.
merged := ""
for _, tx := range in {
if len(merged) > 0 {
merged += ","
}
merged += tx.Payload.(string)
}
return &Transaction{
Payload: merged,
}, nil
})
tx := &Transaction{ID: "foo"}
err := bc.BroadcastTransaction(context.Background(), tx)
require.Nil(t, err)
assert.ElementsMatch(t, []string{"host1", "host2", "host3"}, client.openCalled)
results := strings.Split(tx.Payload.(string), ",")
assert.ElementsMatch(t, []string{
"hello_from_host1",
"hello_from_host2",
"hello_from_host3",
}, results)
}
func TestBroadcastOpenTransactionAfterNodeHasDied(t *testing.T) {
client := &fakeClient{}
state := &fakeState{hosts: []string{"host1", "host2", "host3"}}
bc := NewTxBroadcaster(state, client)
waitUntilIdealStateHasReached(t, bc, 3, 4*time.Second)
// host2 is dead
state.updateHosts([]string{"host1", "host3"})
tx := &Transaction{ID: "foo"}
err := bc.BroadcastTransaction(context.Background(), tx)
require.NotNil(t, err)
assert.Contains(t, err.Error(), "host2")
// no node is should have received an open
assert.ElementsMatch(t, []string{}, client.openCalled)
}
func waitUntilIdealStateHasReached(t *testing.T, bc *TxBroadcaster, goal int,
max time.Duration,
) {
ctx, cancel := context.WithTimeout(context.Background(), max)
defer cancel()
interval := time.NewTicker(250 * time.Millisecond)
defer interval.Stop()
for {
select {
case <-ctx.Done():
t.Error(fmt.Errorf("waiting to reach state goal %d: %w", goal, ctx.Err()))
return
case <-interval.C:
if len(bc.ideal.Members()) == goal {
return
}
}
}
}
func TestBroadcastAbortTransaction(t *testing.T) {
client := &fakeClient{}
state := &fakeState{hosts: []string{"host1", "host2", "host3"}}
bc := NewTxBroadcaster(state, client)
tx := &Transaction{ID: "foo"}
err := bc.BroadcastAbortTransaction(context.Background(), tx)
require.Nil(t, err)
assert.ElementsMatch(t, []string{"host1", "host2", "host3"}, client.abortCalled)
}
func TestBroadcastCommitTransaction(t *testing.T) {
client := &fakeClient{}
state := &fakeState{hosts: []string{"host1", "host2", "host3"}}
bc := NewTxBroadcaster(state, client)
tx := &Transaction{ID: "foo"}
err := bc.BroadcastCommitTransaction(context.Background(), tx)
require.Nil(t, err)
assert.ElementsMatch(t, []string{"host1", "host2", "host3"}, client.commitCalled)
}
func TestBroadcastCommitTransactionAfterNodeHasDied(t *testing.T) {
client := &fakeClient{}
state := &fakeState{hosts: []string{"host1", "host2", "host3"}}
bc := NewTxBroadcaster(state, client)
waitUntilIdealStateHasReached(t, bc, 3, 4*time.Second)
state.updateHosts([]string{"host1", "host3"})
tx := &Transaction{ID: "foo"}
err := bc.BroadcastCommitTransaction(context.Background(), tx)
require.NotNil(t, err)
assert.Contains(t, err.Error(), "host2")
// no node should have received the commit
assert.ElementsMatch(t, []string{}, client.commitCalled)
}
type fakeState struct {
hosts []string
sync.Mutex
}
func (f *fakeState) updateHosts(newHosts []string) {
f.Lock()
defer f.Unlock()
f.hosts = newHosts
}
func (f *fakeState) Hostnames() []string {
f.Lock()
defer f.Unlock()
return f.hosts
}
func (f *fakeState) AllNames() []string {
f.Lock()
defer f.Unlock()
return f.hosts
}
type fakeClient struct {
sync.Mutex
openCalled []string
abortCalled []string
commitCalled []string
}
func (f *fakeClient) OpenTransaction(ctx context.Context, host string, tx *Transaction) error {
f.Lock()
defer f.Unlock()
f.openCalled = append(f.openCalled, host)
tx.Payload = "hello_from_" + host
return nil
}
func (f *fakeClient) AbortTransaction(ctx context.Context, host string, tx *Transaction) error {
f.Lock()
defer f.Unlock()
f.abortCalled = append(f.abortCalled, host)
return nil
}
func (f *fakeClient) CommitTransaction(ctx context.Context, host string, tx *Transaction) error {
f.Lock()
defer f.Unlock()
f.commitCalled = append(f.commitCalled, host)
return nil
}
|