func TestService_WaitForDataChanged(t *testing.T) {
dataChanged := make(chan bool)
ms := MetaStore{}
ms.WaitForDataChangedFn = func() error {
<-dataChanged
return nil
}
calls := make(chan bool, 2)
ms.DatabasesFn = func() ([]meta.DatabaseInfo, error) {
calls <- true
return nil, nil
}
s := subscriber.NewService(subscriber.NewConfig())
s.MetaStore = ms
// Explicitly closed below for testing
s.Open()
// Should be called once during open
select {
case <-calls:
case <-time.After(10 * time.Millisecond):
t.Fatal("expected call")
}
select {
case <-calls:
t.Fatal("unexpected call")
case <-time.After(time.Millisecond):
}
// Signal that data has changed
dataChanged <- true
// Should be called once more after data changed
select {
case <-calls:
case <-time.After(10 * time.Millisecond):
t.Fatal("expected call")
}
select {
case <-calls:
t.Fatal("unexpected call")
case <-time.After(time.Millisecond):
}
//Close service ensure not called
s.Close()
dataChanged <- true
select {
case <-calls:
t.Fatal("unexpected call")
case <-time.After(time.Millisecond):
}
close(dataChanged)
}
// NewConfig returns an instance of Config with reasonable defaults.
func NewConfig() *Config {
c := &Config{}
c.Meta = meta.NewConfig()
c.Data = tsdb.NewConfig()
c.Cluster = cluster.NewConfig()
c.Precreator = precreator.NewConfig()
c.Admin = admin.NewConfig()
c.Monitor = monitor.NewConfig()
c.Subscriber = subscriber.NewConfig()
c.HTTPD = httpd.NewConfig()
c.Collectd = collectd.NewConfig()
c.OpenTSDB = opentsdb.NewConfig()
c.ContinuousQuery = continuous_querier.NewConfig()
c.Retention = retention.NewConfig()
c.HintedHandoff = hh.NewConfig()
return c
}
func TestService_IgnoreNonMatch(t *testing.T) {
dataChanged := make(chan struct{})
ms := MetaClient{}
ms.WaitForDataChangedFn = func() chan struct{} {
return dataChanged
}
ms.DatabasesFn = func() ([]meta.DatabaseInfo, error) {
return []meta.DatabaseInfo{
{
Name: "db0",
RetentionPolicies: []meta.RetentionPolicyInfo{
{
Name: "rp0",
Subscriptions: []meta.SubscriptionInfo{
{Name: "s0", Mode: "ANY", Destinations: []string{"udp://h0:9093", "udp://h1:9093"}},
},
},
},
},
}, nil
}
prs := make(chan *cluster.WritePointsRequest, 2)
urls := make(chan url.URL, 2)
newPointsWriter := func(u url.URL) (subscriber.PointsWriter, error) {
sub := Subscription{}
sub.WritePointsFn = func(p *cluster.WritePointsRequest) error {
prs <- p
return nil
}
urls <- u
return sub, nil
}
s := subscriber.NewService(subscriber.NewConfig())
s.MetaClient = ms
s.NewPointsWriter = newPointsWriter
s.Open()
defer s.Close()
// Signal that data has changed
dataChanged <- struct{}{}
for _, expURLStr := range []string{"udp://h0:9093", "udp://h1:9093"} {
var u url.URL
expURL, _ := url.Parse(expURLStr)
select {
case u = <-urls:
case <-time.After(10 * time.Millisecond):
t.Fatal("expected urls")
}
if expURL.String() != u.String() {
t.Fatalf("unexpected url: got %s exp %s", u.String(), expURL.String())
}
}
// Write points that don't match any subscription.
s.Points() <- &cluster.WritePointsRequest{
Database: "db1",
RetentionPolicy: "rp0",
}
s.Points() <- &cluster.WritePointsRequest{
Database: "db0",
RetentionPolicy: "rp2",
}
// Shouldn't get any prs back
select {
case pr := <-prs:
t.Fatalf("unexpected points request %v", pr)
default:
}
close(dataChanged)
}
func TestService_Multiple(t *testing.T) {
dataChanged := make(chan struct{})
ms := MetaClient{}
ms.WaitForDataChangedFn = func() chan struct{} {
return dataChanged
}
ms.DatabasesFn = func() ([]meta.DatabaseInfo, error) {
return []meta.DatabaseInfo{
{
Name: "db0",
RetentionPolicies: []meta.RetentionPolicyInfo{
{
Name: "rp0",
Subscriptions: []meta.SubscriptionInfo{
{Name: "s0", Mode: "ANY", Destinations: []string{"udp://h0:9093", "udp://h1:9093"}},
},
},
{
Name: "rp1",
Subscriptions: []meta.SubscriptionInfo{
{Name: "s1", Mode: "ALL", Destinations: []string{"udp://h2:9093", "udp://h3:9093"}},
},
},
},
},
}, nil
}
prs := make(chan *cluster.WritePointsRequest, 4)
urls := make(chan url.URL, 4)
newPointsWriter := func(u url.URL) (subscriber.PointsWriter, error) {
sub := Subscription{}
sub.WritePointsFn = func(p *cluster.WritePointsRequest) error {
prs <- p
return nil
}
urls <- u
return sub, nil
}
s := subscriber.NewService(subscriber.NewConfig())
s.MetaClient = ms
s.NewPointsWriter = newPointsWriter
s.Open()
defer s.Close()
// Signal that data has changed
dataChanged <- struct{}{}
for _, expURLStr := range []string{"udp://h0:9093", "udp://h1:9093", "udp://h2:9093", "udp://h3:9093"} {
var u url.URL
expURL, _ := url.Parse(expURLStr)
select {
case u = <-urls:
case <-time.After(10 * time.Millisecond):
t.Fatal("expected urls")
}
if expURL.String() != u.String() {
t.Fatalf("unexpected url: got %s exp %s", u.String(), expURL.String())
}
}
// Write points that don't match any subscription.
s.Points() <- &cluster.WritePointsRequest{
Database: "db1",
RetentionPolicy: "rp0",
}
s.Points() <- &cluster.WritePointsRequest{
Database: "db0",
RetentionPolicy: "rp2",
}
// Write points that match subscription with mode ANY
expPR := &cluster.WritePointsRequest{
Database: "db0",
RetentionPolicy: "rp0",
}
s.Points() <- expPR
// Validate we get the pr back just once
var pr *cluster.WritePointsRequest
select {
case pr = <-prs:
case <-time.After(10 * time.Millisecond):
t.Fatal("expected points request")
}
if pr != expPR {
t.Errorf("unexpected points request: got %v, exp %v", pr, expPR)
}
// shouldn't get it a second time
select {
case pr = <-prs:
t.Fatalf("unexpected points request %v", pr)
default:
}
// Write points that match subscription with mode ALL
expPR = &cluster.WritePointsRequest{
Database: "db0",
RetentionPolicy: "rp1",
}
s.Points() <- expPR
// Should get pr back twice
for i := 0; i < 2; i++ {
select {
case pr = <-prs:
case <-time.After(10 * time.Millisecond):
t.Fatalf("expected points request: got %d exp 2", i)
}
if pr != expPR {
t.Errorf("unexpected points request: got %v, exp %v", pr, expPR)
}
}
close(dataChanged)
}