consul/agent/submatview/store_test.go
Daniel Nephin 1d9d7d0aa5 submatview: track requests instead of notifiers
And only start expiration time when the last request ends. This makes tracking expiry simpler, and
ensures that no entry can be expired while there are active requests.
2021-04-27 19:03:16 -04:00

137 lines
3.3 KiB
Go

package submatview
import (
"context"
"fmt"
"testing"
"time"
"github.com/hashicorp/go-hclog"
"github.com/stretchr/testify/require"
"github.com/hashicorp/consul/agent/cache"
"github.com/hashicorp/consul/proto/pbcommon"
"github.com/hashicorp/consul/proto/pbservice"
"github.com/hashicorp/consul/proto/pbsubscribe"
)
func TestStore_Get_Fresh(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
store := NewStore()
go store.Run(ctx)
req := &fakeRequest{
client: NewTestStreamingClient(pbcommon.DefaultEnterpriseMeta.Namespace),
}
req.client.QueueEvents(
newEndOfSnapshotEvent(2),
newEventServiceHealthRegister(10, 1, "srv1"),
newEventServiceHealthRegister(22, 2, "srv1"))
result, md, err := store.Get(ctx, req)
require.NoError(t, err)
require.Equal(t, uint64(22), md.Index)
r, ok := result.(fakeResult)
require.True(t, ok)
require.Len(t, r.srvs, 2)
require.Equal(t, uint64(22), r.index)
store.lock.Lock()
require.Len(t, store.byKey, 1)
e := store.byKey[makeEntryKey(req.Type(), req.CacheInfo())]
require.Equal(t, 0, e.expiry.Index())
defer store.lock.Unlock()
require.Equal(t, store.expiryHeap.Next().Entry, e.expiry)
}
type fakeRequest struct {
client *TestStreamingClient
}
func (r *fakeRequest) CacheInfo() cache.RequestInfo {
return cache.RequestInfo{
Key: "key",
Token: "abcd",
Datacenter: "dc1",
Timeout: 4 * time.Second,
}
}
func (r *fakeRequest) NewMaterializer() *Materializer {
return NewMaterializer(Deps{
View: &fakeView{srvs: make(map[string]*pbservice.CheckServiceNode)},
Client: r.client,
Logger: hclog.New(nil),
Request: func(index uint64) pbsubscribe.SubscribeRequest {
req := pbsubscribe.SubscribeRequest{
Topic: pbsubscribe.Topic_ServiceHealth,
Key: "key",
Token: "abcd",
Datacenter: "dc1",
Index: index,
Namespace: pbcommon.DefaultEnterpriseMeta.Namespace,
}
return req
},
})
}
func (r *fakeRequest) Type() string {
return fmt.Sprintf("%T", r)
}
type fakeView struct {
srvs map[string]*pbservice.CheckServiceNode
}
func (f *fakeView) Update(events []*pbsubscribe.Event) error {
for _, event := range events {
serviceHealth := event.GetServiceHealth()
if serviceHealth == nil {
return fmt.Errorf("unexpected event type for service health view: %T",
event.GetPayload())
}
id := serviceHealth.CheckServiceNode.UniqueID()
switch serviceHealth.Op {
case pbsubscribe.CatalogOp_Register:
f.srvs[id] = serviceHealth.CheckServiceNode
case pbsubscribe.CatalogOp_Deregister:
delete(f.srvs, id)
}
}
return nil
}
func (f *fakeView) Result(index uint64) (interface{}, error) {
srvs := make([]*pbservice.CheckServiceNode, 0, len(f.srvs))
for _, srv := range f.srvs {
srvs = append(srvs, srv)
}
return fakeResult{srvs: srvs, index: index}, nil
}
type fakeResult struct {
srvs []*pbservice.CheckServiceNode
index uint64
}
func (f *fakeView) Reset() {
f.srvs = make(map[string]*pbservice.CheckServiceNode)
}
// TODO: Get with an entry that already has index
// TODO: Get with an entry that is not yet at index
func TestStore_Notify(t *testing.T) {
// TODO: Notify with no existing entry
// TODO: Notify with Get
// TODO: Notify multiple times same key
// TODO: Notify no update if index is not past MinIndex.
}