frostfs-node/cmd/frostfs-node/cache_test.go

package main

import (
	"context"
	"errors"
	"sync"
	"testing"
	"time"

	netmapSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
	"github.com/stretchr/testify/require"
)

func TestTTLNetCache(t *testing.T) {
	ttlDuration := time.Millisecond * 50
	cache := newNetworkTTLCache(10, ttlDuration, testNetValueReader, &noopCacheMetricts{})

	key := "key"

	t.Run("Test Add and Get", func(t *testing.T) {
		ti := time.Now()
		cache.set(key, ti, nil)
		val, err := cache.get(context.Background(), key)
		require.NoError(t, err)
		require.Equal(t, ti, val)
	})

	t.Run("Test TTL", func(t *testing.T) {
		ti := time.Now()
		cache.set(key, ti, nil)
		time.Sleep(2 * ttlDuration)
		val, err := cache.get(context.Background(), key)
		require.NoError(t, err)
		require.NotEqual(t, val, ti)
	})

	t.Run("Test Remove", func(t *testing.T) {
		ti := time.Now()
		cache.set(key, ti, nil)
		cache.remove(key)
		val, err := cache.get(context.Background(), key)
		require.NoError(t, err)
		require.NotEqual(t, val, ti)
	})

	t.Run("Test Cache Error", func(t *testing.T) {
		cache.set("error", time.Now(), errors.New("mock error"))
		_, err := cache.get(context.Background(), "error")
		require.Error(t, err)
		require.Equal(t, "mock error", err.Error())
	})
}

func testNetValueReader(_ context.Context, key string) (time.Time, error) {
	if key == "error" {
		return time.Now(), errors.New("mock error")
	}
	return time.Now(), nil
}

type noopCacheMetricts struct{}

func (m *noopCacheMetricts) AddMethodDuration(method string, d time.Duration, hit bool) {}

type rawSrc struct{}

func (r *rawSrc) GetCandidates(_ context.Context) ([]netmapSDK.NodeInfo, error) {
	node0 := netmapSDK.NodeInfo{}
	node0.SetPublicKey([]byte{byte(1)})
	node0.SetStatus(netmapSDK.Online)
	node0.SetExternalAddresses("1", "0")
	node0.SetNetworkEndpoints("1", "0")

	node1 := netmapSDK.NodeInfo{}
	node1.SetPublicKey([]byte{byte(1)})
	node1.SetStatus(netmapSDK.Online)
	node1.SetExternalAddresses("1", "0")
	node1.SetNetworkEndpoints("1", "0")

	return []netmapSDK.NodeInfo{node0, node1}, nil
}

func (r *rawSrc) GetNetMapByEpoch(ctx context.Context, epoch uint64) (*netmapSDK.NetMap, error) {
	nm := netmapSDK.NetMap{}
	nm.SetEpoch(1)

	node0 := netmapSDK.NodeInfo{}
	node0.SetPublicKey([]byte{byte(1)})
	node0.SetStatus(netmapSDK.Maintenance)
	node0.SetExternalAddresses("0")
	node0.SetNetworkEndpoints("0")

	node1 := netmapSDK.NodeInfo{}
	node1.SetPublicKey([]byte{byte(1)})
	node1.SetStatus(netmapSDK.Maintenance)
	node1.SetExternalAddresses("0")
	node1.SetNetworkEndpoints("0")

	nm.SetNodes([]netmapSDK.NodeInfo{node0, node1})

	return &nm, nil
}

type st struct{}

func (s *st) CurrentEpoch() uint64 {
	return 1
}

func TestNetmapStorage(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	wg := sync.WaitGroup{}
	cache := newCachedNetmapStorage(ctx, nil, &st{}, &rawSrc{}, &wg, time.Millisecond*50)

	nm, err := cache.GetNetMapByEpoch(ctx, 1)
	require.NoError(t, err)
	require.True(t, nm.Nodes()[0].Status() == netmapSDK.Maintenance)
	require.True(t, len(nm.Nodes()[0].ExternalAddresses()) == 1)
	require.True(t, nm.Nodes()[0].NumberOfNetworkEndpoints() == 1)

	require.Eventually(t, func() bool {
		nm, err := cache.GetNetMapByEpoch(ctx, 1)
		require.NoError(t, err)
		for _, node := range nm.Nodes() {
			if !(node.Status() == netmapSDK.Online && len(node.ExternalAddresses()) == 2 &&
				node.NumberOfNetworkEndpoints() == 2) {
				return false
			}
		}
		return true
	}, time.Second*5, time.Millisecond*10)

	cancel()
	wg.Wait()
}