telegraf/plugins/inputs/kube_inventory/service_test.go

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package kube_inventory
import (
"testing"
"time"
"github.com/ericchiang/k8s/apis/core/v1"
metav1 "github.com/ericchiang/k8s/apis/meta/v1"
"github.com/influxdata/telegraf/testutil"
)
func TestService(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 service",
handler: &mockHandler{
responseMap: map[string]interface{}{
"/service/": &v1.ServiceList{},
},
},
hasError: false,
},
{
name: "collect service",
handler: &mockHandler{
responseMap: map[string]interface{}{
"/service/": &v1.ServiceList{
Items: []*v1.Service{
{
Spec: &v1.ServiceSpec{
Ports: []*v1.ServicePort{
{
Port: toInt32Ptr(8080),
TargetPort: toIntStrPtrI(1234),
Name: toStrPtr("diagnostic"),
Protocol: toStrPtr("TCP"),
},
},
ExternalIPs: []string{"1.0.0.127"},
ClusterIP: toStrPtr("127.0.0.1"),
},
Metadata: &metav1.ObjectMeta{
Generation: toInt64Ptr(12),
Namespace: toStrPtr("ns1"),
Name: toStrPtr("checker"),
CreationTimestamp: &metav1.Time{Seconds: toInt64Ptr(now.Unix())},
},
},
},
},
},
},
output: &testutil.Accumulator{
Metrics: []*testutil.Metric{
{
Fields: map[string]interface{}{
"port": int32(8080),
"target_port": int32(1234),
"generation": int64(12),
"created": now.UnixNano(),
},
Tags: map[string]string{
"service_name": "checker",
"namespace": "ns1",
"port_name": "diagnostic",
"port_protocol": "TCP",
"cluster_ip": "127.0.0.1",
"ip": "1.0.0.127",
},
},
},
},
hasError: false,
},
}
for _, v := range tests {
ks := &KubernetesInventory{
client: cli,
}
acc := new(testutil.Accumulator)
for _, service := range ((v.handler.responseMap["/service/"]).(*v1.ServiceList)).Items {
err := ks.gatherService(*service, acc)
if err != nil {
t.Errorf("Failed to gather service - %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 '%v'\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])
}
}
}
}
}
}