func TestReportPostHandler(t *testing.T) {
test := func(contentType string, encoder func(interface{}) ([]byte, error)) {
router := mux.NewRouter()
c := app.NewCollector(1 * time.Minute)
app.RegisterReportPostHandler(c, router)
ts := httptest.NewServer(router)
defer ts.Close()
b, err := encoder(fixture.Report)
if err != nil {
t.Fatalf("Content-Type %s: %s", contentType, err)
}
req, err := http.NewRequest("POST", ts.URL+"/api/report", bytes.NewReader(b))
if err != nil {
t.Fatalf("Error posting report: %v", err)
}
req.Header.Set("Content-Type", contentType)
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Fatalf("Error posting report %v", err)
}
_, err = ioutil.ReadAll(resp.Body)
resp.Body.Close()
if err != nil {
t.Fatalf("Error posting report: %v", err)
}
if resp.StatusCode != http.StatusOK {
t.Fatalf("Error posting report: %d", resp.StatusCode)
}
ctx := context.Background()
report, err := c.Report(ctx)
if err != nil {
t.Error(err)
}
if want, have := fixture.Report.Endpoint.Nodes, report.Endpoint.Nodes; len(have) == 0 || len(want) != len(have) {
t.Fatalf("Content-Type %s: %v", contentType, test.Diff(have, want))
}
}
test("", func(v interface{}) ([]byte, error) {
buf := &bytes.Buffer{}
err := gob.NewEncoder(buf).Encode(v)
return buf.Bytes(), err
})
test("application/json", func(v interface{}) ([]byte, error) {
buf := &bytes.Buffer{}
err := codec.NewEncoder(buf, &codec.JsonHandle{}).Encode(v)
return buf.Bytes(), err
})
test("application/msgpack", func(v interface{}) ([]byte, error) {
buf := &bytes.Buffer{}
err := codec.NewEncoder(buf, &codec.MsgpackHandle{}).Encode(v)
return buf.Bytes(), err
})
}
func TestAPITopologyAddsKubernetes(t *testing.T) {
router := mux.NewRouter()
c := app.NewCollector(1 * time.Minute)
app.RegisterReportPostHandler(c, router)
app.RegisterTopologyRoutes(router, c)
ts := httptest.NewServer(router)
defer ts.Close()
body := getRawJSON(t, ts, "/api/topology")
var topologies []app.APITopologyDesc
decoder := codec.NewDecoderBytes(body, &codec.JsonHandle{})
if err := decoder.Decode(&topologies); err != nil {
t.Fatalf("JSON parse error: %s", err)
}
equals(t, 4, len(topologies))
// Enable the kubernetes topologies
rpt := report.MakeReport()
rpt.Pod = report.MakeTopology()
rpt.Pod.Nodes[fixture.ClientPodNodeID] = kubernetes.NewPod(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "pong-a",
Namespace: "ping",
Labels: map[string]string{"ponger": "true"},
},
Status: api.PodStatus{
HostIP: "1.2.3.4",
ContainerStatuses: []api.ContainerStatus{
{ContainerID: "container1"},
{ContainerID: "container2"},
},
},
}).GetNode("")
buf := &bytes.Buffer{}
encoder := codec.NewEncoder(buf, &codec.MsgpackHandle{})
if err := encoder.Encode(rpt); err != nil {
t.Fatalf("GOB encoding error: %s", err)
}
checkRequest(t, ts, "POST", "/api/report", buf.Bytes())
body = getRawJSON(t, ts, "/api/topology")
decoder = codec.NewDecoderBytes(body, &codec.JsonHandle{})
if err := decoder.Decode(&topologies); err != nil {
t.Fatalf("JSON parse error: %s", err)
}
equals(t, 4, len(topologies))
found := false
for _, topology := range topologies {
if topology.Name == "Pods" {
found = true
break
}
}
if !found {
t.Error("Could not find pods topology")
}
}
func TestCollectorWait(t *testing.T) {
ctx := context.Background()
window := time.Millisecond
c := app.NewCollector(window)
waiter := make(chan struct{}, 1)
c.WaitOn(ctx, waiter)
defer c.UnWait(ctx, waiter)
c.(interface {
Broadcast()
}).Broadcast()
select {
case <-waiter:
default:
t.Fatal("Didn't unblock")
}
}
func TestCollectorExpire(t *testing.T) {
now := time.Now()
mtime.NowForce(now)
defer mtime.NowReset()
ctx := context.Background()
window := 10 * time.Second
c := app.NewCollector(window)
// 1st check the collector is empty
have, err := c.Report(ctx)
if err != nil {
t.Error(err)
}
if want := report.MakeReport(); !reflect.DeepEqual(want, have) {
t.Error(test.Diff(want, have))
}
// Now check an added report is returned
r1 := report.MakeReport()
r1.Endpoint.AddNode(report.MakeNode("foo"))
c.Add(ctx, r1)
have, err = c.Report(ctx)
if err != nil {
t.Error(err)
}
if want := r1; !reflect.DeepEqual(want, have) {
t.Error(test.Diff(want, have))
}
// Finally move time forward to expire the report
mtime.NowForce(now.Add(window))
have, err = c.Report(ctx)
if err != nil {
t.Error(err)
}
if want := report.MakeReport(); !reflect.DeepEqual(want, have) {
t.Error(test.Diff(want, have))
}
}
func TestCollector(t *testing.T) {
ctx := context.Background()
window := 10 * time.Second
c := app.NewCollector(window)
r1 := report.MakeReport()
r1.Endpoint.AddNode(report.MakeNode("foo"))
r2 := report.MakeReport()
r2.Endpoint.AddNode(report.MakeNode("foo"))
have, err := c.Report(ctx)
if err != nil {
t.Error(err)
}
if want := report.MakeReport(); !reflect.DeepEqual(want, have) {
t.Error(test.Diff(want, have))
}
c.Add(ctx, r1)
have, err = c.Report(ctx)
if err != nil {
t.Error(err)
}
if want := r1; !reflect.DeepEqual(want, have) {
t.Error(test.Diff(want, have))
}
c.Add(ctx, r2)
merged := report.MakeReport()
merged = merged.Merge(r1)
merged = merged.Merge(r2)
have, err = c.Report(ctx)
if err != nil {
t.Error(err)
}
if want := merged; !reflect.DeepEqual(want, have) {
t.Error(test.Diff(want, have))
}
}
func collectorFactory(userIDer multitenant.UserIDer, collectorURL string, window time.Duration, createTables bool) (app.Collector, error) {
if collectorURL == "local" {
return app.NewCollector(window), nil
}
parsed, err := url.Parse(collectorURL)
if err != nil {
return nil, err
}
if parsed.Scheme == "dynamodb" {
dynamoCollector := multitenant.NewDynamoDBCollector(awsConfigFromURL(parsed), userIDer)
if createTables {
if err := dynamoCollector.CreateTables(); err != nil {
return nil, err
}
}
return dynamoCollector, nil
}
return nil, fmt.Errorf("Invalid collector '%s'", collectorURL)
}