Add kube_inventory input plugin (#5110)

plugins/inputs/kube_inventory/client_test.go

@@ -0,0 +1,35 @@
+package kube_inventory
+
+import (
+	"testing"
+	"time"
+
+	"github.com/influxdata/telegraf/internal/tls"
+)
+
+type mockHandler struct {
+	responseMap map[string]interface{}
+}
+
+func toStrPtr(s string) *string {
+	return &s
+}
+
+func toInt32Ptr(i int32) *int32 {
+	return &i
+}
+
+func toInt64Ptr(i int64) *int64 {
+	return &i
+}
+
+func toBoolPtr(b bool) *bool {
+	return &b
+}
+
+func TestNewClient(t *testing.T) {
+	_, err := newClient("https://127.0.0.1:443/", "default", "abc123", time.Second, tls.ClientConfig{})
+	if err != nil {
+		t.Errorf("Failed to create new client - %s", err.Error())
+	}
+}