telegraf/plugins/inputs/kube_inventory/statefulset_test.go

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package kube_inventory
import (
"testing"
"time"
"github.com/ericchiang/k8s/apis/apps/v1beta1"
metav1 "github.com/ericchiang/k8s/apis/meta/v1"
"github.com/influxdata/telegraf/testutil"
)
func TestStatefulSet(t *testing.T) {
cli := &client{}
now := time.Now()
now = time.Date(now.Year(), now.Month(), now.Day(), now.Hour(), 1, 36, 0, now.Location())
tests := []struct {
name string
handler *mockHandler
output *testutil.Accumulator
hasError bool
}{
{
name: "no statefulsets",
handler: &mockHandler{
responseMap: map[string]interface{}{
"/statefulsets/": &v1beta1.StatefulSetList{},
},
},
hasError: false,
},
{
name: "collect statefulsets",
handler: &mockHandler{
responseMap: map[string]interface{}{
"/statefulsets/": &v1beta1.StatefulSetList{
Items: []*v1beta1.StatefulSet{
{
Status: &v1beta1.StatefulSetStatus{
Replicas: toInt32Ptr(2),
CurrentReplicas: toInt32Ptr(4),
ReadyReplicas: toInt32Ptr(1),
UpdatedReplicas: toInt32Ptr(3),
ObservedGeneration: toInt64Ptr(119),
},
Spec: &v1beta1.StatefulSetSpec{
Replicas: toInt32Ptr(3),
},
Metadata: &metav1.ObjectMeta{
Generation: toInt64Ptr(332),
Namespace: toStrPtr("ns1"),
Name: toStrPtr("sts1"),
Labels: map[string]string{
"lab1": "v1",
"lab2": "v2",
},
CreationTimestamp: &metav1.Time{Seconds: toInt64Ptr(now.Unix())},
},
},
},
},
},
},
output: &testutil.Accumulator{
Metrics: []*testutil.Metric{
{
Fields: map[string]interface{}{
"generation": int64(332),
"observed_generation": int64(119),
"created": now.UnixNano(),
"spec_replicas": int32(3),
"replicas": int32(2),
"replicas_current": int32(4),
"replicas_ready": int32(1),
"replicas_updated": int32(3),
},
Tags: map[string]string{
"namespace": "ns1",
"statefulset_name": "sts1",
},
},
},
},
hasError: false,
},
}
for _, v := range tests {
ks := &KubernetesInventory{
client: cli,
}
acc := new(testutil.Accumulator)
for _, ss := range ((v.handler.responseMap["/statefulsets/"]).(*v1beta1.StatefulSetList)).Items {
err := ks.gatherStatefulSet(*ss, acc)
if err != nil {
t.Errorf("Failed to gather ss - %s", err.Error())
}
}
err := acc.FirstError()
if err == nil && v.hasError {
t.Fatalf("%s failed, should have error", v.name)
} else if err != nil && !v.hasError {
t.Fatalf("%s failed, err: %v", v.name, err)
}
if v.output == nil && len(acc.Metrics) > 0 {
t.Fatalf("%s: collected extra data", v.name)
} else if v.output != nil && len(v.output.Metrics) > 0 {
for i := range v.output.Metrics {
for k, m := range v.output.Metrics[i].Tags {
if acc.Metrics[i].Tags[k] != m {
t.Fatalf("%s: tag %s metrics unmatch Expected %s, got %s\n", v.name, k, m, acc.Metrics[i].Tags[k])
}
}
for k, m := range v.output.Metrics[i].Fields {
if acc.Metrics[i].Fields[k] != m {
t.Fatalf("%s: field %s metrics unmatch Expected %v(%T), got %v(%T)\n", v.name, k, m, m, acc.Metrics[i].Fields[k], acc.Metrics[i].Fields[k])
}
}
}
}
}
}