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// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.
package elastic
import (
"context"
"net/url"
"testing"
)
func TestClusterHealth(t *testing.T) {
client := setupTestClientAndCreateIndex(t)
// Get cluster health
res, err := client.ClusterHealth().Index(testIndexName).Level("shards").Pretty(true).Do(context.TODO())
if err != nil {
t.Fatal(err)
}
if res == nil {
t.Fatalf("expected res to be != nil; got: %v", res)
}
if res.Status != "green" && res.Status != "red" && res.Status != "yellow" {
t.Fatalf("expected status \"green\", \"red\", or \"yellow\"; got: %q", res.Status)
}
}
func TestClusterHealthURLs(t *testing.T) {
tests := []struct {
Service *ClusterHealthService
ExpectedPath string
ExpectedParams url.Values
}{
{
Service: &ClusterHealthService{
indices: []string{},
},
ExpectedPath: "/_cluster/health",
},
{
Service: &ClusterHealthService{
indices: []string{"twitter"},
},
ExpectedPath: "/_cluster/health/twitter",
},
{
Service: &ClusterHealthService{
indices: []string{"twitter", "gplus"},
},
ExpectedPath: "/_cluster/health/twitter%2Cgplus",
},
{
Service: &ClusterHealthService{
indices: []string{"twitter"},
waitForStatus: "yellow",
},
ExpectedPath: "/_cluster/health/twitter",
ExpectedParams: url.Values{"wait_for_status": []string{"yellow"}},
},
}
for _, test := range tests {
gotPath, gotParams, err := test.Service.buildURL()
if err != nil {
t.Fatalf("expected no error; got: %v", err)
}
if gotPath != test.ExpectedPath {
t.Errorf("expected URL path = %q; got: %q", test.ExpectedPath, gotPath)
}
if gotParams.Encode() != test.ExpectedParams.Encode() {
t.Errorf("expected URL params = %v; got: %v", test.ExpectedParams, gotParams)
}
}
}
func TestClusterHealthWaitForStatus(t *testing.T) {
client := setupTestClientAndCreateIndex(t) //, SetTraceLog(log.New(os.Stdout, "", 0)))
// Ensure preconditions are met: A green cluster.
health, err := client.ClusterHealth().Do(context.TODO())
if err != nil {
t.Fatal(err)
}
if got, want := health.Status, "green"; got != want {
t.Skipf("precondition failed: expected cluster to be %q, not %q", want, got)
}
// Cluster health on an index that does not exist should never get to yellow
health, err = client.ClusterHealth().Index("no-such-index").WaitForStatus("yellow").Timeout("1s").Do(context.TODO())
if err == nil {
t.Fatalf("expected timeout error; got: %v", err)
}
if !IsTimeout(err) {
t.Fatalf("expected timeout error; got: %v", err)
}
if health != nil {
t.Fatalf("expected no response; got: %v", health)
}
// Cluster wide health
health, err = client.ClusterHealth().WaitForGreenStatus().Timeout("10s").Do(context.TODO())
if err != nil {
t.Fatalf("expected no error; got: %v", err)
}
if health.TimedOut != false {
t.Fatalf("expected no timeout; got: %v "+
"(does your local cluster contain unassigned shards?)", health.TimedOut)
}
if health.Status != "green" {
t.Fatalf("expected health = %q; got: %q", "green", health.Status)
}
// Cluster wide health via shortcut on client
err = client.WaitForGreenStatus("10s")
if err != nil {
t.Fatalf("expected no error; got: %v", err)
}
}
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