frostfs-sdk-go/pool/pool_test.go
Denis Kirillov 05aa3becae [#278] pool: Don't make maintenance node healthy in rebalance
Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>
2024-10-17 16:31:49 +03:00

937 lines
24 KiB
Go

package pool
import (
"context"
"crypto/ecdsa"
"errors"
"math/rand"
"testing"
"time"
apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
frostfsecdsa "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto/ecdsa"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/stretchr/testify/require"
"go.uber.org/zap"
"go.uber.org/zap/zaptest"
"go.uber.org/zap/zaptest/observer"
)
func TestBuildPoolClientFailed(t *testing.T) {
mockClientBuilder := func(addr string) client {
mockCli := newMockClient(addr, *newPrivateKey(t))
mockCli.errOnDial()
return mockCli
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: []NodeParam{{1, "peer0", 1}},
}
opts.setClientBuilder(mockClientBuilder)
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(context.Background())
require.Error(t, err)
}
func TestBuildPoolCreateSessionFailed(t *testing.T) {
clientMockBuilder := func(addr string) client {
mockCli := newMockClient(addr, *newPrivateKey(t))
mockCli.errOnCreateSession()
return mockCli
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: []NodeParam{{1, "peer0", 1}},
}
opts.setClientBuilder(clientMockBuilder)
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(context.Background())
require.Error(t, err)
}
func newPrivateKey(t *testing.T) *ecdsa.PrivateKey {
p, err := keys.NewPrivateKey()
require.NoError(t, err)
return &p.PrivateKey
}
func TestBuildPoolOneNodeFailed(t *testing.T) {
nodes := []NodeParam{
{1, "peer0", 1},
{2, "peer1", 1},
}
var clientKeys []*ecdsa.PrivateKey
mockClientBuilder := func(addr string) client {
key := newPrivateKey(t)
clientKeys = append(clientKeys, key)
if addr == nodes[0].address {
mockCli := newMockClient(addr, *key)
mockCli.errOnEndpointInfo()
return mockCli
}
return newMockClient(addr, *key)
}
log, err := zap.NewProduction()
require.NoError(t, err)
opts := InitParameters{
key: newPrivateKey(t),
clientRebalanceInterval: 1000 * time.Millisecond,
logger: log,
nodeParams: nodes,
}
opts.setClientBuilder(mockClientBuilder)
clientPool, err := NewPool(opts)
require.NoError(t, err)
err = clientPool.Dial(context.Background())
require.NoError(t, err)
t.Cleanup(clientPool.Close)
expectedAuthKey := frostfsecdsa.PublicKey(clientKeys[1].PublicKey)
condition := func() bool {
cp, err := clientPool.connection()
if err != nil {
return false
}
st, _ := clientPool.cache.Get(formCacheKey(cp.address(), clientPool.key, false))
return st.AssertAuthKey(&expectedAuthKey)
}
require.Never(t, condition, 900*time.Millisecond, 100*time.Millisecond)
require.Eventually(t, condition, 3*time.Second, 300*time.Millisecond)
}
func TestBuildPoolZeroNodes(t *testing.T) {
opts := InitParameters{
key: newPrivateKey(t),
}
_, err := NewPool(opts)
require.Error(t, err)
}
func TestOneNode(t *testing.T) {
key1 := newPrivateKey(t)
mockClientBuilder := func(addr string) client {
return newMockClient(addr, *key1)
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: []NodeParam{{1, "peer0", 1}},
}
opts.setClientBuilder(mockClientBuilder)
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(context.Background())
require.NoError(t, err)
t.Cleanup(pool.Close)
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
expectedAuthKey := frostfsecdsa.PublicKey(key1.PublicKey)
require.True(t, st.AssertAuthKey(&expectedAuthKey))
}
func TestTwoNodes(t *testing.T) {
var clientKeys []*ecdsa.PrivateKey
mockClientBuilder := func(addr string) client {
key := newPrivateKey(t)
clientKeys = append(clientKeys, key)
return newMockClient(addr, *key)
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: []NodeParam{
{1, "peer0", 1},
{1, "peer1", 1},
},
}
opts.setClientBuilder(mockClientBuilder)
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(context.Background())
require.NoError(t, err)
t.Cleanup(pool.Close)
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, assertAuthKeyForAny(st, clientKeys))
}
func assertAuthKeyForAny(st session.Object, clientKeys []*ecdsa.PrivateKey) bool {
for _, key := range clientKeys {
expectedAuthKey := frostfsecdsa.PublicKey(key.PublicKey)
if st.AssertAuthKey(&expectedAuthKey) {
return true
}
}
return false
}
func TestOneOfTwoFailed(t *testing.T) {
nodes := []NodeParam{
{1, "peer0", 1},
{9, "peer1", 1},
}
var clientKeys []*ecdsa.PrivateKey
mockClientBuilder := func(addr string) client {
key := newPrivateKey(t)
clientKeys = append(clientKeys, key)
if addr == nodes[0].address {
return newMockClient(addr, *key)
}
mockCli := newMockClient(addr, *key)
mockCli.errOnEndpointInfo()
mockCli.errOnNetworkInfo()
return mockCli
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: nodes,
clientRebalanceInterval: 200 * time.Millisecond,
}
opts.setClientBuilder(mockClientBuilder)
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(context.Background())
require.NoError(t, err)
require.NoError(t, err)
t.Cleanup(pool.Close)
time.Sleep(2 * time.Second)
for range 5 {
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, assertAuthKeyForAny(st, clientKeys))
}
}
func TestUpdateNodesHealth(t *testing.T) {
ctx := context.Background()
key := newPrivateKey(t)
for _, tc := range []struct {
name string
wasHealthy bool
willHealthy bool
prepareCli func(*mockClient)
}{
{
name: "healthy, maintenance, unhealthy",
wasHealthy: true,
willHealthy: false,
prepareCli: func(c *mockClient) { c.resOnEndpointInfo.SetStatus(netmap.Maintenance) },
},
{
name: "unhealthy, maintenance, unhealthy",
wasHealthy: false,
willHealthy: false,
prepareCli: func(c *mockClient) { c.resOnEndpointInfo.SetStatus(netmap.Maintenance) },
},
{
name: "healthy, no error, healthy",
wasHealthy: true,
willHealthy: true,
prepareCli: func(c *mockClient) { c.resOnEndpointInfo.SetStatus(netmap.Online) },
},
{
name: "unhealthy, no error, healthy",
wasHealthy: false,
willHealthy: true,
prepareCli: func(c *mockClient) { c.resOnEndpointInfo.SetStatus(netmap.Online) },
},
{
name: "healthy, error, failed restart, unhealthy",
wasHealthy: true,
willHealthy: false,
prepareCli: func(c *mockClient) {
c.errOnEndpointInfo()
c.errorOnDial = true
},
},
{
name: "unhealthy, error, failed restart, unhealthy",
wasHealthy: false,
willHealthy: false,
prepareCli: func(c *mockClient) {
c.errOnEndpointInfo()
c.errorOnDial = true
},
},
{
name: "healthy, error, restart, error, unhealthy",
wasHealthy: true,
willHealthy: false,
prepareCli: func(c *mockClient) { c.errOnEndpointInfo() },
},
{
name: "unhealthy, error, restart, error, unhealthy",
wasHealthy: false,
willHealthy: false,
prepareCli: func(c *mockClient) { c.errOnEndpointInfo() },
},
{
name: "healthy, error, restart, maintenance, unhealthy",
wasHealthy: true,
willHealthy: false,
prepareCli: func(c *mockClient) {
healthError := true
c.healthcheckFn = func() {
if healthError {
c.errorOnEndpointInfo = errors.New("error")
} else {
c.errorOnEndpointInfo = nil
c.resOnEndpointInfo.SetStatus(netmap.Maintenance)
}
healthError = !healthError
}
},
},
{
name: "unhealthy, error, restart, maintenance, unhealthy",
wasHealthy: false,
willHealthy: false,
prepareCli: func(c *mockClient) {
healthError := true
c.healthcheckFn = func() {
if healthError {
c.errorOnEndpointInfo = errors.New("error")
} else {
c.errorOnEndpointInfo = nil
c.resOnEndpointInfo.SetStatus(netmap.Maintenance)
}
healthError = !healthError
}
},
},
{
name: "healthy, error, restart, healthy",
wasHealthy: true,
willHealthy: true,
prepareCli: func(c *mockClient) {
healthError := true
c.healthcheckFn = func() {
if healthError {
c.errorOnEndpointInfo = errors.New("error")
} else {
c.errorOnEndpointInfo = nil
}
healthError = !healthError
}
},
},
{
name: "unhealthy, error, restart, healthy",
wasHealthy: false,
willHealthy: true,
prepareCli: func(c *mockClient) {
healthError := true
c.healthcheckFn = func() {
if healthError {
c.errorOnEndpointInfo = errors.New("error")
} else {
c.errorOnEndpointInfo = nil
}
healthError = !healthError
}
},
},
} {
t.Run(tc.name, func(t *testing.T) {
cli := newMockClientHealthy("peer0", *key, tc.wasHealthy)
tc.prepareCli(cli)
p, log := newPool(t, cli)
p.updateNodesHealth(ctx, [][]float64{{1}})
changed := tc.wasHealthy != tc.willHealthy
require.Equalf(t, tc.willHealthy, cli.isHealthy(), "healthy status should be: %v", tc.willHealthy)
require.Equalf(t, changed, 1 == log.Len(), "healthy status should be changed: %v", changed)
})
}
}
func newPool(t *testing.T, cli *mockClient) (*Pool, *observer.ObservedLogs) {
log, observedLog := getObservedLogger()
cache, err := newCache(0)
require.NoError(t, err)
return &Pool{
innerPools: []*innerPool{{
sampler: newSampler([]float64{1}, rand.NewSource(0)),
clients: []client{cli},
}},
cache: cache,
key: newPrivateKey(t),
closedCh: make(chan struct{}),
rebalanceParams: rebalanceParameters{
nodesParams: []*nodesParam{{1, []string{"peer0"}, []float64{1}}},
nodeRequestTimeout: time.Second,
clientRebalanceInterval: 200 * time.Millisecond,
},
logger: log,
}, observedLog
}
func getObservedLogger() (*zap.Logger, *observer.ObservedLogs) {
loggerCore, observedLog := observer.New(zap.DebugLevel)
return zap.New(loggerCore), observedLog
}
func TestTwoFailed(t *testing.T) {
var clientKeys []*ecdsa.PrivateKey
mockClientBuilder := func(addr string) client {
key := newPrivateKey(t)
clientKeys = append(clientKeys, key)
mockCli := newMockClient(addr, *key)
mockCli.errOnEndpointInfo()
return mockCli
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: []NodeParam{
{1, "peer0", 1},
{1, "peer1", 1},
},
clientRebalanceInterval: 200 * time.Millisecond,
}
opts.setClientBuilder(mockClientBuilder)
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(context.Background())
require.NoError(t, err)
t.Cleanup(pool.Close)
time.Sleep(2 * time.Second)
_, err = pool.connection()
require.Error(t, err)
require.Contains(t, err.Error(), "no healthy")
}
func TestSessionCache(t *testing.T) {
key := newPrivateKey(t)
expectedAuthKey := frostfsecdsa.PublicKey(key.PublicKey)
mockClientBuilder := func(addr string) client {
mockCli := newMockClient(addr, *key)
mockCli.statusOnGetObject(new(apistatus.SessionTokenNotFound))
return mockCli
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: []NodeParam{
{1, "peer0", 1},
},
clientRebalanceInterval: 30 * time.Second,
}
opts.setClientBuilder(mockClientBuilder)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(ctx)
require.NoError(t, err)
t.Cleanup(pool.Close)
// cache must contain session token
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, st.AssertAuthKey(&expectedAuthKey))
var prm PrmObjectGet
prm.SetAddress(oid.Address{})
prm.UseSession(session.Object{})
_, err = pool.GetObject(ctx, prm)
require.Error(t, err)
// cache must not contain session token
cp, err = pool.connection()
require.NoError(t, err)
_, ok := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.False(t, ok)
var prm2 PrmObjectPut
prm2.SetHeader(object.Object{})
_, err = pool.PutObject(ctx, prm2)
require.NoError(t, err)
// cache must contain session token
cp, err = pool.connection()
require.NoError(t, err)
st, _ = pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, st.AssertAuthKey(&expectedAuthKey))
}
func TestPriority(t *testing.T) {
nodes := []NodeParam{
{1, "peer0", 1},
{2, "peer1", 100},
}
var clientKeys []*ecdsa.PrivateKey
mockClientBuilder := func(addr string) client {
key := newPrivateKey(t)
clientKeys = append(clientKeys, key)
if addr == nodes[0].address {
mockCli := newMockClient(addr, *key)
mockCli.errOnEndpointInfo()
return mockCli
}
return newMockClient(addr, *key)
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: nodes,
clientRebalanceInterval: 1500 * time.Millisecond,
}
opts.setClientBuilder(mockClientBuilder)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(ctx)
require.NoError(t, err)
t.Cleanup(pool.Close)
expectedAuthKey1 := frostfsecdsa.PublicKey(clientKeys[0].PublicKey)
firstNode := func() bool {
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
return st.AssertAuthKey(&expectedAuthKey1)
}
expectedAuthKey2 := frostfsecdsa.PublicKey(clientKeys[1].PublicKey)
secondNode := func() bool {
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
return st.AssertAuthKey(&expectedAuthKey2)
}
require.Never(t, secondNode, time.Second, 200*time.Millisecond)
require.Eventually(t, secondNode, time.Second, 200*time.Millisecond)
require.Never(t, firstNode, time.Second, 200*time.Millisecond)
}
func TestSessionCacheWithKey(t *testing.T) {
key := newPrivateKey(t)
expectedAuthKey := frostfsecdsa.PublicKey(key.PublicKey)
mockClientBuilder := func(addr string) client {
return newMockClient(addr, *key)
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: []NodeParam{
{1, "peer0", 1},
},
clientRebalanceInterval: 30 * time.Second,
}
opts.setClientBuilder(mockClientBuilder)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(ctx)
require.NoError(t, err)
// cache must contain session token
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, st.AssertAuthKey(&expectedAuthKey))
var prm PrmObjectDelete
prm.SetAddress(oid.Address{})
anonKey := newPrivateKey(t)
prm.UseKey(anonKey)
err = pool.DeleteObject(ctx, prm)
require.NoError(t, err)
st, _ = pool.cache.Get(formCacheKey(cp.address(), anonKey, false))
require.True(t, st.AssertAuthKey(&expectedAuthKey))
}
func TestSessionTokenOwner(t *testing.T) {
mockClientBuilder := func(addr string) client {
key := newPrivateKey(t)
return newMockClient(addr, *key)
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: []NodeParam{
{1, "peer0", 1},
},
}
opts.setClientBuilder(mockClientBuilder)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
p, err := NewPool(opts)
require.NoError(t, err)
err = p.Dial(ctx)
require.NoError(t, err)
t.Cleanup(p.Close)
anonKey := newPrivateKey(t)
var anonOwner user.ID
user.IDFromKey(&anonOwner, anonKey.PublicKey)
var prm prmCommon
prm.UseKey(anonKey)
var prmCtx prmContext
prmCtx.useDefaultSession()
var tkn session.Object
var cc callContext
cc.sessionTarget = func(tok session.Object) {
tkn = tok
}
err = p.initCallContext(&cc, prm, prmCtx)
require.NoError(t, err)
err = p.openDefaultSession(ctx, &cc)
require.NoError(t, err)
require.True(t, tkn.VerifySignature())
require.True(t, tkn.Issuer().Equals(anonOwner))
}
func TestWaitPresence(t *testing.T) {
mockCli := newMockClient("", *newPrivateKey(t))
t.Run("context canceled", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
go func() {
time.Sleep(500 * time.Millisecond)
cancel()
}()
err := waitForContainerPresence(ctx, mockCli, PrmContainerGet{}, &WaitParams{
Timeout: 120 * time.Second,
PollInterval: 5 * time.Second,
})
require.Error(t, err)
require.Contains(t, err.Error(), "context canceled")
})
t.Run("context deadline exceeded", func(t *testing.T) {
ctx := context.Background()
err := waitForContainerPresence(ctx, mockCli, PrmContainerGet{}, &WaitParams{
Timeout: 500 * time.Millisecond,
PollInterval: 5 * time.Second,
})
require.Error(t, err)
require.Contains(t, err.Error(), "context deadline exceeded")
})
t.Run("ok", func(t *testing.T) {
ctx := context.Background()
err := waitForContainerPresence(ctx, mockCli, PrmContainerGet{}, &WaitParams{
Timeout: 10 * time.Second,
PollInterval: 500 * time.Millisecond,
})
require.NoError(t, err)
})
}
func TestStatusMonitor(t *testing.T) {
monitor := newClientStatusMonitor(zap.NewExample(), "", 10)
monitor.errorThreshold = 3
count := 10
for range count {
monitor.incErrorRate()
}
require.Equal(t, uint64(count), monitor.overallErrorRate())
require.Equal(t, uint32(1), monitor.currentErrorRate())
t.Run("healthy status", func(t *testing.T) {
cases := []struct {
action func(*clientStatusMonitor)
status uint32
isDialed bool
isHealthy bool
description string
}{
{
action: func(m *clientStatusMonitor) { m.setUnhealthy() },
status: statusUnhealthyOnRequest,
isDialed: true,
isHealthy: false,
description: "set unhealthy on request",
},
{
action: func(m *clientStatusMonitor) { m.setHealthy() },
status: statusHealthy,
isDialed: true,
isHealthy: true,
description: "set healthy",
},
}
for _, tc := range cases {
tc.action(&monitor)
require.Equal(t, tc.status, monitor.healthy.Load())
require.Equal(t, tc.isHealthy, monitor.isHealthy())
}
})
}
func TestHandleError(t *testing.T) {
ctx := context.Background()
log := zaptest.NewLogger(t)
canceledCtx, cancel := context.WithCancel(context.Background())
cancel()
for _, tc := range []struct {
name string
ctx context.Context
status apistatus.Status
err error
expectedError bool
countError bool
markedUnhealthy bool
}{
{
name: "no error, no status",
ctx: ctx,
status: nil,
err: nil,
expectedError: false,
countError: false,
},
{
name: "no error, success status",
ctx: ctx,
status: new(apistatus.SuccessDefaultV2),
err: nil,
expectedError: false,
countError: false,
},
{
name: "error, success status",
ctx: ctx,
status: new(apistatus.SuccessDefaultV2),
err: errors.New("error"),
expectedError: true,
countError: true,
},
{
name: "error, no status",
ctx: ctx,
status: nil,
err: errors.New("error"),
expectedError: true,
countError: true,
},
{
name: "no error, object not found status",
ctx: ctx,
status: new(apistatus.ObjectNotFound),
err: nil,
expectedError: true,
countError: false,
},
{
name: "object not found error, object not found status",
ctx: ctx,
status: new(apistatus.ObjectNotFound),
err: &apistatus.ObjectNotFound{},
expectedError: true,
countError: false,
},
{
name: "eacl not found error, no status",
ctx: ctx,
status: nil,
err: &apistatus.EACLNotFound{},
expectedError: true,
// we expect error be counted because status is nil
// currently we assume that DisableFrostFSErrorResolution be always false for pool
// and status be checked first in handleError
countError: true,
},
{
name: "no error, internal status",
ctx: ctx,
status: new(apistatus.ServerInternal),
err: nil,
expectedError: true,
countError: true,
},
{
name: "no error, wrong magic status",
ctx: ctx,
status: new(apistatus.WrongMagicNumber),
err: nil,
expectedError: true,
countError: true,
},
{
name: "no error, signature verification status",
ctx: ctx,
status: new(apistatus.SignatureVerification),
err: nil,
expectedError: true,
countError: true,
},
{
name: "no error, maintenance status",
ctx: ctx,
status: new(apistatus.NodeUnderMaintenance),
err: nil,
expectedError: true,
countError: true,
markedUnhealthy: true,
},
{
name: "maintenance error, no status",
ctx: ctx,
status: nil,
err: &apistatus.NodeUnderMaintenance{},
expectedError: true,
countError: true,
markedUnhealthy: true,
},
{
name: "no error, invalid argument status",
ctx: ctx,
status: new(apistatus.InvalidArgument),
err: nil,
expectedError: true,
countError: false,
},
{
name: "context canceled error, no status",
ctx: canceledCtx,
status: nil,
err: errors.New("error"),
expectedError: true,
countError: false,
},
} {
t.Run(tc.name, func(t *testing.T) {
monitor := newClientStatusMonitor(log, "", 10)
errCount := monitor.overallErrorRate()
err := monitor.handleError(tc.ctx, tc.status, tc.err)
if tc.expectedError {
require.Error(t, err)
} else {
require.NoError(t, err)
}
if tc.countError {
errCount++
}
require.Equal(t, errCount, monitor.overallErrorRate())
if tc.markedUnhealthy {
require.False(t, monitor.isHealthy())
}
})
}
}
func TestSwitchAfterErrorThreshold(t *testing.T) {
nodes := []NodeParam{
{1, "peer0", 1},
{2, "peer1", 100},
}
errorThreshold := 5
var clientKeys []*ecdsa.PrivateKey
mockClientBuilder := func(addr string) client {
key := newPrivateKey(t)
clientKeys = append(clientKeys, key)
if addr == nodes[0].address {
mockCli := newMockClient(addr, *key)
mockCli.setThreshold(uint32(errorThreshold))
mockCli.statusOnGetObject(new(apistatus.ServerInternal))
return mockCli
}
return newMockClient(addr, *key)
}
opts := InitParameters{
key: newPrivateKey(t),
nodeParams: nodes,
clientRebalanceInterval: 30 * time.Second,
}
opts.setClientBuilder(mockClientBuilder)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
pool, err := NewPool(opts)
require.NoError(t, err)
err = pool.Dial(ctx)
require.NoError(t, err)
t.Cleanup(pool.Close)
for range errorThreshold {
conn, err := pool.connection()
require.NoError(t, err)
require.Equal(t, nodes[0].address, conn.address())
_, err = conn.objectGet(ctx, PrmObjectGet{})
require.Error(t, err)
}
conn, err := pool.connection()
require.NoError(t, err)
require.Equal(t, nodes[1].address, conn.address())
_, err = conn.objectGet(ctx, PrmObjectGet{})
require.NoError(t, err)
}