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coredns/plugin/kubernetes/handler_test.go
Miek Gieben 830e97f800 plugin/kubernetes: allow trimming down of cached items. (#2128) 
* Convert to runtime.Object to smaller structs

This adds conversion for all the objects we want to keep in the cache.
It keeps the minimum for CoreDNS to function and throws away the rest.

The conversion:
api.Endpoints -> object.Endpoints
api.Pod       -> object.Pod
api.Serivce   -> object.Service

We needed to copy some client-go stuff to insert a conversion function
into NewIndexInformers.

Some unrelated cleanups in the watch functionality as that needed to be
touched because of the above translation of objects.

Signed-off-by: Miek Gieben <miek@miek.nl>

* Reduce test line-count

Signed-off-by: Miek Gieben <miek@miek.nl>

* ....and fix test

Signed-off-by: Miek Gieben <miek@miek.nl>

* Drop use of append

Signed-off-by: Miek Gieben <miek@miek.nl>

* cosmetic changes

Signed-off-by: Miek Gieben <miek@miek.nl>

* that was a typo

Signed-off-by: Miek Gieben <miek@miek.nl>

* re-introduce append here

We can't really use len() here because we don't know the number before
hand.

Signed-off-by: Miek Gieben <miek@miek.nl>

* comment in better place

Signed-off-by: Miek Gieben <miek@miek.nl>

* Make the timestamp a bool; thats where it is used for

Signed-off-by: Miek Gieben <miek@miek.nl>

* Set incoming object to nil

Explicataliy discard the converted object; we did a deep copy it's
not needed anymore.

Signed-off-by: Miek Gieben <miek@miek.nl>

* Per Chris's comment

Signed-off-by: Miek Gieben <miek@miek.nl>
2018-10-09 21:56:09 +01:00

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package kubernetes
import (
"context"
"testing"
"time"
"github.com/coredns/coredns/plugin/kubernetes/object"
"github.com/coredns/coredns/plugin/pkg/dnstest"
"github.com/coredns/coredns/plugin/pkg/watch"
"github.com/coredns/coredns/plugin/test"
"github.com/miekg/dns"
api "k8s.io/api/core/v1"
meta "k8s.io/apimachinery/pkg/apis/meta/v1"
)
var dnsTestCases = []test.Case{
// A Service
{
Qname: "svc1.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
},
},
{
Qname: "svcempty.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("svcempty.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
},
},
// A Service (wildcard)
{
Qname: "svc1.*.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("svc1.*.svc.cluster.local. 5 IN A 10.0.0.1"),
},
},
{
Qname: "svc1.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{test.SRV("svc1.testns.svc.cluster.local. 5 IN SRV 0 100 80 svc1.testns.svc.cluster.local.")},
Extra: []dns.RR{test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
},
{
Qname: "svcempty.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{test.SRV("svcempty.testns.svc.cluster.local. 5 IN SRV 0 100 80 svcempty.testns.svc.cluster.local.")},
Extra: []dns.RR{test.A("svcempty.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
},
{
Qname: "svc6.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{test.SRV("svc6.testns.svc.cluster.local. 5 IN SRV 0 100 80 svc6.testns.svc.cluster.local.")},
Extra: []dns.RR{test.AAAA("svc6.testns.svc.cluster.local. 5 IN AAAA 1234:abcd::1")},
},
// SRV Service (wildcard)
{
Qname: "svc1.*.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{test.SRV("svc1.*.svc.cluster.local. 5 IN SRV 0 100 80 svc1.testns.svc.cluster.local.")},
Extra: []dns.RR{test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
},
{
Qname: "svcempty.*.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{test.SRV("svcempty.*.svc.cluster.local. 5 IN SRV 0 100 80 svcempty.testns.svc.cluster.local.")},
Extra: []dns.RR{test.A("svcempty.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
},
// SRV Service (wildcards)
{
Qname: "*.any.svc1.*.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{test.SRV("*.any.svc1.*.svc.cluster.local. 5 IN SRV 0 100 80 svc1.testns.svc.cluster.local.")},
Extra: []dns.RR{test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1")},
},
// A Service (wildcards)
{
Qname: "*.any.svc1.*.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("*.any.svc1.*.svc.cluster.local. 5 IN A 10.0.0.1"),
},
},
// SRV Service Not udp/tcp
{
Qname: "*._not-udp-or-tcp.svc1.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
// SRV Service
{
Qname: "_http._tcp.svc1.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.SRV("_http._tcp.svc1.testns.svc.cluster.local. 5 IN SRV 0 100 80 svc1.testns.svc.cluster.local."),
},
Extra: []dns.RR{
test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
},
},
{
Qname: "_http._tcp.svcempty.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.SRV("_http._tcp.svcempty.testns.svc.cluster.local. 5 IN SRV 0 100 80 svcempty.testns.svc.cluster.local."),
},
Extra: []dns.RR{
test.A("svcempty.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
},
},
// A Service (Headless)
{
Qname: "hdls1.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.2"),
test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.3"),
test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.4"),
test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.5"),
},
},
// A Service (Headless and Portless)
{
Qname: "hdlsprtls.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("hdlsprtls.testns.svc.cluster.local. 5 IN A 172.0.0.20"),
},
},
// An Endpoint with no port
{
Qname: "172-0-0-20.hdlsprtls.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("172-0-0-20.hdlsprtls.testns.svc.cluster.local. 5 IN A 172.0.0.20"),
},
},
// An Endpoint ip
{
Qname: "172-0-0-2.hdls1.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("172-0-0-2.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.2"),
},
},
// A Endpoint ip
{
Qname: "172-0-0-3.hdls1.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("172-0-0-3.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.3"),
},
},
// An Endpoint by name
{
Qname: "dup-name.hdls1.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("dup-name.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.4"),
test.A("dup-name.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.5"),
},
},
// SRV Service (Headless)
{
Qname: "_http._tcp.hdls1.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 172-0-0-2.hdls1.testns.svc.cluster.local."),
test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 172-0-0-3.hdls1.testns.svc.cluster.local."),
test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 5678-abcd--1.hdls1.testns.svc.cluster.local."),
test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 5678-abcd--2.hdls1.testns.svc.cluster.local."),
test.SRV("_http._tcp.hdls1.testns.svc.cluster.local. 5 IN SRV 0 16 80 dup-name.hdls1.testns.svc.cluster.local."),
},
Extra: []dns.RR{
test.A("172-0-0-2.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.2"),
test.A("172-0-0-3.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.3"),
test.AAAA("5678-abcd--1.hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::1"),
test.AAAA("5678-abcd--2.hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::2"),
test.A("dup-name.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.4"),
test.A("dup-name.hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.5"),
},
},
{ // An A record query for an existing headless service should return a record for each of its ipv4 endpoints
Qname: "hdls1.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.2"),
test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.3"),
test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.4"),
test.A("hdls1.testns.svc.cluster.local. 5 IN A 172.0.0.5"),
},
},
// SRV Service (Headless and portless)
{
Qname: "*.*.hdlsprtls.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
// AAAA
{
Qname: "5678-abcd--2.hdls1.testns.svc.cluster.local", Qtype: dns.TypeAAAA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{test.AAAA("5678-abcd--2.hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::2")},
},
// CNAME External
{
Qname: "external.testns.svc.cluster.local.", Qtype: dns.TypeCNAME,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.CNAME("external.testns.svc.cluster.local. 5 IN CNAME ext.interwebs.test."),
},
},
// CNAME External To Internal Service
{
Qname: "external-to-service.testns.svc.cluster.local", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.CNAME("external-to-service.testns.svc.cluster.local. 5 IN CNAME svc1.testns.svc.cluster.local."),
test.A("svc1.testns.svc.cluster.local. 5 IN A 10.0.0.1"),
},
},
// AAAA Service (with an existing A record, but no AAAA record)
{
Qname: "svc1.testns.svc.cluster.local.", Qtype: dns.TypeAAAA,
Rcode: dns.RcodeSuccess,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
// AAAA Service (non-existing service)
{
Qname: "svc0.testns.svc.cluster.local.", Qtype: dns.TypeAAAA,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
// A Service (non-existing service)
{
Qname: "svc0.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
// A Service (non-existing namespace)
{
Qname: "svc0.svc-nons.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
// TXT Schema
{
Qname: "dns-version.cluster.local.", Qtype: dns.TypeTXT,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.TXT("dns-version.cluster.local 28800 IN TXT 1.0.1"),
},
},
// A Service (Headless) does not exist
{
Qname: "bogusendpoint.hdls1.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
// A Service does not exist
{
Qname: "bogusendpoint.svc0.testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeNameError,
Ns: []dns.RR{
test.SOA("cluster.local. 300 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
// AAAA Service
{
Qname: "svc6.testns.svc.cluster.local.", Qtype: dns.TypeAAAA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.AAAA("svc6.testns.svc.cluster.local. 5 IN AAAA 1234:abcd::1"),
},
},
// SRV
{
Qname: "_http._tcp.svc6.testns.svc.cluster.local.", Qtype: dns.TypeSRV,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.SRV("_http._tcp.svc6.testns.svc.cluster.local. 5 IN SRV 0 100 80 svc6.testns.svc.cluster.local."),
},
Extra: []dns.RR{
test.AAAA("svc6.testns.svc.cluster.local. 5 IN AAAA 1234:abcd::1"),
},
},
// AAAA Service (Headless)
{
Qname: "hdls1.testns.svc.cluster.local.", Qtype: dns.TypeAAAA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.AAAA("hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::1"),
test.AAAA("hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::2"),
},
},
// AAAA Endpoint
{
Qname: "5678-abcd--1.hdls1.testns.svc.cluster.local.", Qtype: dns.TypeAAAA,
Rcode: dns.RcodeSuccess,
Answer: []dns.RR{
test.AAAA("5678-abcd--1.hdls1.testns.svc.cluster.local. 5 IN AAAA 5678:abcd::1"),
},
},
{
Qname: "svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Ns: []dns.RR{
test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
{
Qname: "pod.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Ns: []dns.RR{
test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
{
Qname: "testns.svc.cluster.local.", Qtype: dns.TypeA,
Rcode: dns.RcodeSuccess,
Ns: []dns.RR{
test.SOA("cluster.local. 303 IN SOA ns.dns.cluster.local. hostmaster.cluster.local. 1499347823 7200 1800 86400 60"),
},
},
}
func TestServeDNS(t *testing.T) {
k := New([]string{"cluster.local."})
k.APIConn = &APIConnServeTest{}
k.Next = test.NextHandler(dns.RcodeSuccess, nil)
k.Namespaces = map[string]bool{"testns": true}
ctx := context.TODO()
for i, tc := range dnsTestCases {
r := tc.Msg()
w := dnstest.NewRecorder(&test.ResponseWriter{})
_, err := k.ServeDNS(ctx, w, r)
if err != tc.Error {
t.Errorf("Test %d expected no error, got %v", i, err)
return
}
if tc.Error != nil {
continue
}
resp := w.Msg
if resp == nil {
t.Fatalf("Test %d, got nil message and no error for %q", i, r.Question[0].Name)
}
// Before sorting, make sure that CNAMES do not appear after their target records
test.CNAMEOrder(t, resp)
test.SortAndCheck(t, resp, tc)
}
}
type APIConnServeTest struct{}
func (APIConnServeTest) HasSynced() bool { return true }
func (APIConnServeTest) Run() { return }
func (APIConnServeTest) Stop() error { return nil }
func (APIConnServeTest) EpIndexReverse(string) []*object.Endpoints { return nil }
func (APIConnServeTest) SvcIndexReverse(string) []*object.Service { return nil }
func (APIConnServeTest) Modified() int64 { return time.Now().Unix() }
func (APIConnServeTest) SetWatchChan(watch.Chan) {}
func (APIConnServeTest) Watch(string) error { return nil }
func (APIConnServeTest) StopWatching(string) {}
func (APIConnServeTest) PodIndex(string) []*object.Pod {
a := []*object.Pod{
{Namespace: "podns", PodIP: "10.240.0.1"}, // Remote IP set in test.ResponseWriter
}
return a
}
var svcIndex = map[string][]*object.Service{
"svc1.testns": {
{
Name: "svc1",
Namespace: "testns",
Type: api.ServiceTypeClusterIP,
ClusterIP: "10.0.0.1",
Ports: []api.ServicePort{
{Name: "http", Protocol: "tcp", Port: 80},
},
},
},
"svcempty.testns": {
{
Name: "svcempty",
Namespace: "testns",
Type: api.ServiceTypeClusterIP,
ClusterIP: "10.0.0.1",
Ports: []api.ServicePort{
{Name: "http", Protocol: "tcp", Port: 80},
},
},
},
"svc6.testns": {
{
Name: "svc6",
Namespace: "testns",
Type: api.ServiceTypeClusterIP,
ClusterIP: "1234:abcd::1",
Ports: []api.ServicePort{
{Name: "http", Protocol: "tcp", Port: 80},
},
},
},
"hdls1.testns": {
{
Name: "hdls1",
Namespace: "testns",
Type: api.ServiceTypeClusterIP,
ClusterIP: api.ClusterIPNone,
},
},
"external.testns": {
{
Name: "external",
Namespace: "testns",
ExternalName: "ext.interwebs.test",
Type: api.ServiceTypeExternalName,
Ports: []api.ServicePort{
{Name: "http", Protocol: "tcp", Port: 80},
},
},
},
"external-to-service.testns": {
{
Name: "external-to-service",
Namespace: "testns",
ExternalName: "svc1.testns.svc.cluster.local.",
Type: api.ServiceTypeExternalName,
Ports: []api.ServicePort{
{Name: "http", Protocol: "tcp", Port: 80},
},
},
},
"hdlsprtls.testns": {
{
Name: "hdlsprtls",
Namespace: "testns",
Type: api.ServiceTypeClusterIP,
ClusterIP: api.ClusterIPNone,
},
},
"svc1.unexposedns": {
{
Name: "svc1",
Namespace: "unexposedns",
Type: api.ServiceTypeClusterIP,
ClusterIP: "10.0.0.2",
Ports: []api.ServicePort{
{Name: "http", Protocol: "tcp", Port: 80},
},
},
},
}
func (APIConnServeTest) SvcIndex(s string) []*object.Service { return svcIndex[s] }
func (APIConnServeTest) ServiceList() []*object.Service {
var svcs []*object.Service
for _, svc := range svcIndex {
svcs = append(svcs, svc...)
}
return svcs
}
var epsIndex = map[string][]*object.Endpoints{
"svc1.testns": {{
Subsets: []object.EndpointSubset{
{
Addresses: []object.EndpointAddress{
{IP: "172.0.0.1", Hostname: "ep1a"},
},
Ports: []object.EndpointPort{
{Port: 80, Protocol: "tcp", Name: "http"},
},
},
},
Name: "svc1",
Namespace: "testns",
}},
"svcempty.testns": {{
Subsets: []object.EndpointSubset{
{
Addresses: nil,
Ports: []object.EndpointPort{
{Port: 80, Protocol: "tcp", Name: "http"},
},
},
},
Name: "svcempty",
Namespace: "testns",
}},
"hdls1.testns": {{
Subsets: []object.EndpointSubset{
{
Addresses: []object.EndpointAddress{
{IP: "172.0.0.2"},
{IP: "172.0.0.3"},
{IP: "172.0.0.4", Hostname: "dup-name"},
{IP: "172.0.0.5", Hostname: "dup-name"},
{IP: "5678:abcd::1"},
{IP: "5678:abcd::2"},
},
Ports: []object.EndpointPort{
{Port: 80, Protocol: "tcp", Name: "http"},
},
},
},
Name: "hdls1",
Namespace: "testns",
}},
"hdlsprtls.testns": {{
Subsets: []object.EndpointSubset{
{
Addresses: []object.EndpointAddress{
{IP: "172.0.0.20"},
},
Ports: []object.EndpointPort{{Port: -1}},
},
},
Name: "hdlsprtls",
Namespace: "testns",
}},
}
func (APIConnServeTest) EpIndex(s string) []*object.Endpoints {
return epsIndex[s]
}
func (APIConnServeTest) EndpointsList() []*object.Endpoints {
var eps []*object.Endpoints
for _, ep := range epsIndex {
eps = append(eps, ep...)
}
return eps
}
func (APIConnServeTest) GetNodeByName(name string) (*api.Node, error) {
return &api.Node{
ObjectMeta: meta.ObjectMeta{
Name: "test.node.foo.bar",
},
}, nil
}
func (APIConnServeTest) GetNamespaceByName(name string) (*api.Namespace, error) {
if name == "pod-nons" { // handler_pod_verified_test.go uses this for non-existent namespace.
return &api.Namespace{}, nil
}
return &api.Namespace{
ObjectMeta: meta.ObjectMeta{
Name: name,
},
}, nil
}
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