coredns/plugin/kubernetes/controller_test.go
John Belamaric 99287d091c
Watch feature (#1527)
* Add part 1 watch functionality. (squashed)

* add funcs for service/endpoint fqdns

* add endpoints watch

* document exposed funcs

* only send subset deltas

* locking for watch map

* tests and docs

* add pod watch

* remove debugs prints

* feedback part 1

* add error reporting to proto

* inform clients of server stop+errors

* add grpc options param

* use proper context

* Review feedback:
 * Removed client (will move to another repo)
 * Use new log functions
 * Change watchChan to be for string not []string
 * Rework how k8s plugin stores watch tracking info to simplify
 * Normalize the qname on watch request

* Add blank line back

* Revert another spurious change

* Fix tests

* Add stop channel.
Fix tests.
Better docs for plugin interface.

* fmt.Printf -> log.Warningf

* Move from dnsserver to plugin/pkg/watch

* gofmt

* remove dead client watches

* sate linter

* linter omg
2018-06-27 07:45:32 -07:00

53 lines
1.6 KiB
Go

package kubernetes
import (
"strconv"
"strings"
"testing"
api "k8s.io/api/core/v1"
)
func endpointSubsets(addrs ...string) (eps []api.EndpointSubset) {
for _, ap := range addrs {
apa := strings.Split(ap, ":")
address := apa[0]
port, _ := strconv.Atoi(apa[1])
eps = append(eps, api.EndpointSubset{Addresses: []api.EndpointAddress{{IP: address}}, Ports: []api.EndpointPort{{Port: int32(port)}}})
}
return eps
}
func TestEndpointsSubsetDiffs(t *testing.T) {
var tests = []struct {
a, b, expected api.Endpoints
}{
{ // From a->b: Nothing changes
api.Endpoints{Subsets: endpointSubsets("10.0.0.1:80", "10.0.0.2:8080")},
api.Endpoints{Subsets: endpointSubsets("10.0.0.1:80", "10.0.0.2:8080")},
api.Endpoints{},
},
{ // From a->b: Everything goes away
api.Endpoints{Subsets: endpointSubsets("10.0.0.1:80", "10.0.0.2:8080")},
api.Endpoints{},
api.Endpoints{Subsets: endpointSubsets("10.0.0.1:80", "10.0.0.2:8080")},
},
{ // From a->b: Everything is new
api.Endpoints{},
api.Endpoints{Subsets: endpointSubsets("10.0.0.1:80", "10.0.0.2:8080")},
api.Endpoints{Subsets: endpointSubsets("10.0.0.1:80", "10.0.0.2:8080")},
},
{ // From a->b: One goes away, one is new
api.Endpoints{Subsets: endpointSubsets("10.0.0.2:8080")},
api.Endpoints{Subsets: endpointSubsets("10.0.0.1:80")},
api.Endpoints{Subsets: endpointSubsets("10.0.0.2:8080", "10.0.0.1:80")},
},
}
for i, te := range tests {
got := endpointsSubsetDiffs(&te.a, &te.b)
if !endpointsEquivalent(got, &te.expected) {
t.Errorf("Expected '%v' for test %v, got '%v'.", te.expected, i, got)
}
}
}