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package collector
import (
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"github.com/go-kit/kit/log"
)
func TestClusterHealth(t *testing.T) {
// Testcases created using:
// docker run -d -p 9200:9200 elasticsearch:VERSION-alpine
// curl -XPUT http://localhost:9200/twitter
// curl http://localhost:9200/_cluster/health
tcs := map[string]string{
"1.7.6": `{"cluster_name":"elasticsearch","status":"yellow","timed_out":false,"number_of_nodes":1,"number_of_data_nodes":1,"active_primary_shards":5,"active_shards":5,"relocating_shards":0,"initializing_shards":0,"unassigned_shards":5,"delayed_unassigned_shards":0,"number_of_pending_tasks":0,"number_of_in_flight_fetch":0}`,
"2.4.5": `{"cluster_name":"elasticsearch","status":"yellow","timed_out":false,"number_of_nodes":1,"number_of_data_nodes":1,"active_primary_shards":5,"active_shards":5,"relocating_shards":0,"initializing_shards":0,"unassigned_shards":5,"delayed_unassigned_shards":0,"number_of_pending_tasks":0,"number_of_in_flight_fetch":0,"task_max_waiting_in_queue_millis":12,"active_shards_percent_as_number":50.0}`,
"5.4.2": `{"cluster_name":"elasticsearch","status":"yellow","timed_out":false,"number_of_nodes":1,"number_of_data_nodes":1,"active_primary_shards":5,"active_shards":5,"relocating_shards":0,"initializing_shards":0,"unassigned_shards":5,"delayed_unassigned_shards":0,"number_of_pending_tasks":0,"number_of_in_flight_fetch":0,"task_max_waiting_in_queue_millis":12,"active_shards_percent_as_number":50.0}`,
}
for ver, out := range tcs {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintln(w, out)
}))
defer ts.Close()
u, err := url.Parse(ts.URL)
if err != nil {
t.Fatalf("Failed to parse URL: %s", err)
}
c := NewClusterHealth(log.NewNopLogger(), http.DefaultClient, u)
chr, err := c.fetchAndDecodeClusterHealth()
if err != nil {
t.Fatalf("Failed to fetch or decode cluster health: %s", err)
}
t.Logf("[%s] Cluster Health Response: %+v", ver, chr)
if chr.ClusterName != "elasticsearch" {
t.Errorf("Invalid cluster health response")
}
if chr.Status != "yellow" {
t.Errorf("Invalid cluster status")
}
if chr.TimedOut {
t.Errorf("Check didn't time out")
}
if chr.NumberOfNodes != 1 {
t.Errorf("Wrong number of nodes")
}
if chr.NumberOfDataNodes != 1 {
t.Errorf("Wrong number of data nodes")
}
if ver != "1.7.6" {
if chr.TaskMaxWaitingInQueueMillis != 12 {
t.Errorf("Wrong task max waiting time in millis")
}
}
}
}
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