kubernetes/plugin/pkg/scheduler/factory/factory_test.go
Yu-Ju Hong 4a72addaeb Factor out API defaulting from validation logic
Currently, the validation logic validates fields in an object and supply default
values wherever applies. This change factors out defaulting to a set of
defaulting callback functions for decoding (see #1502 for more discussion).

 * This change is based on pull request 2587.

 * Most defaulting has been migrated to defaults.go where the defaulting
   functions are added.

 * validation_test.go and converter_test.go have been adapted to not testing the
   default values.

 * Fixed all tests with that create invalid objects with the absence of
   defaulting logic.
2015-02-03 00:55:42 -08:00

356 lines
9.2 KiB
Go

/*
Copyright 2014 Google Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package factory
import (
"net/http"
"net/http/httptest"
"path"
"reflect"
"testing"
"time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/testapi"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/cache"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
)
func TestCreate(t *testing.T) {
handler := util.FakeHandler{
StatusCode: 500,
ResponseBody: "",
T: t,
}
server := httptest.NewServer(&handler)
defer server.Close()
client := client.NewOrDie(&client.Config{Host: server.URL, Version: testapi.Version()})
factory := NewConfigFactory(client)
factory.Create()
}
func TestPollMinions(t *testing.T) {
table := []struct {
minions []api.Node
expectedCount int
}{
{
minions: []api.Node{
{
ObjectMeta: api.ObjectMeta{Name: "foo"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{Kind: api.NodeReady, Status: api.ConditionFull},
},
},
},
{
ObjectMeta: api.ObjectMeta{Name: "bar"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{Kind: api.NodeReachable, Status: api.ConditionFull},
},
},
},
{
ObjectMeta: api.ObjectMeta{Name: "baz"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{Kind: api.NodeReady, Status: api.ConditionFull},
{Kind: api.NodeReachable, Status: api.ConditionFull},
},
},
},
{
ObjectMeta: api.ObjectMeta{Name: "baz"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{Kind: api.NodeReady, Status: api.ConditionFull},
{Kind: api.NodeReady, Status: api.ConditionFull},
},
},
},
},
expectedCount: 4,
},
{
minions: []api.Node{
{
ObjectMeta: api.ObjectMeta{Name: "foo"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{Kind: api.NodeReady, Status: api.ConditionFull},
},
},
},
{
ObjectMeta: api.ObjectMeta{Name: "bar"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{Kind: api.NodeReady, Status: api.ConditionNone},
},
},
},
},
expectedCount: 1,
},
{
minions: []api.Node{
{
ObjectMeta: api.ObjectMeta{Name: "foo"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{Kind: api.NodeReady, Status: api.ConditionFull},
{Kind: api.NodeReachable, Status: api.ConditionNone}},
},
},
},
expectedCount: 1,
},
{
minions: []api.Node{
{
ObjectMeta: api.ObjectMeta{Name: "foo"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{Kind: api.NodeReachable, Status: api.ConditionFull},
{Kind: "invalidValue", Status: api.ConditionNone}},
},
},
},
expectedCount: 1,
},
{
minions: []api.Node{
{
ObjectMeta: api.ObjectMeta{Name: "foo"},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{},
},
},
},
expectedCount: 1,
},
}
for _, item := range table {
ml := &api.NodeList{Items: item.minions}
handler := util.FakeHandler{
StatusCode: 200,
ResponseBody: runtime.EncodeOrDie(latest.Codec, ml),
T: t,
}
mux := http.NewServeMux()
// FakeHandler musn't be sent requests other than the one you want to test.
mux.Handle("/api/"+testapi.Version()+"/minions", &handler)
server := httptest.NewServer(mux)
defer server.Close()
client := client.NewOrDie(&client.Config{Host: server.URL, Version: testapi.Version()})
cf := NewConfigFactory(client)
ce, err := cf.pollMinions()
if err != nil {
t.Errorf("Unexpected error: %v", err)
continue
}
handler.ValidateRequest(t, "/api/"+testapi.Version()+"/minions", "GET", nil)
if a := ce.Len(); item.expectedCount != a {
t.Errorf("Expected %v, got %v", item.expectedCount, a)
}
}
}
func makeNamespaceURL(namespace, suffix string, isClient bool) string {
if !(testapi.Version() == "v1beta1" || testapi.Version() == "v1beta2") {
return makeURL("/ns/" + namespace + suffix)
}
// if this is a url the client should call, encode the url
if isClient {
return makeURL(suffix + "?namespace=" + namespace)
}
// its not a client url, so its what the server needs to listen on
return makeURL(suffix)
}
func makeURL(suffix string) string {
return path.Join("/api", testapi.Version(), suffix)
}
func TestDefaultErrorFunc(t *testing.T) {
testPod := &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "foo", Namespace: "bar"},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicy{Always: &api.RestartPolicyAlways{}},
DNSPolicy: api.DNSClusterFirst,
},
}
handler := util.FakeHandler{
StatusCode: 200,
ResponseBody: runtime.EncodeOrDie(latest.Codec, testPod),
T: t,
}
mux := http.NewServeMux()
// FakeHandler musn't be sent requests other than the one you want to test.
mux.Handle(makeNamespaceURL("bar", "/pods/foo", false), &handler)
server := httptest.NewServer(mux)
defer server.Close()
factory := NewConfigFactory(client.NewOrDie(&client.Config{Host: server.URL, Version: testapi.Version()}))
queue := cache.NewFIFO(cache.MetaNamespaceKeyFunc)
podBackoff := podBackoff{
perPodBackoff: map[string]*backoffEntry{},
clock: &fakeClock{},
defaultDuration: 1 * time.Millisecond,
maxDuration: 1 * time.Second,
}
errFunc := factory.makeDefaultErrorFunc(&podBackoff, queue)
errFunc(testPod, nil)
for {
// This is a terrible way to do this but I plan on replacing this
// whole error handling system in the future. The test will time
// out if something doesn't work.
time.Sleep(10 * time.Millisecond)
got, exists, _ := queue.Get(testPod)
if !exists {
continue
}
handler.ValidateRequest(t, makeNamespaceURL("bar", "/pods/foo", true), "GET", nil)
if e, a := testPod, got; !reflect.DeepEqual(e, a) {
t.Errorf("Expected %v, got %v", e, a)
}
break
}
}
func TestMinionEnumerator(t *testing.T) {
testList := &api.NodeList{
Items: []api.Node{
{ObjectMeta: api.ObjectMeta{Name: "foo"}},
{ObjectMeta: api.ObjectMeta{Name: "bar"}},
{ObjectMeta: api.ObjectMeta{Name: "baz"}},
},
}
me := nodeEnumerator{testList}
if e, a := 3, me.Len(); e != a {
t.Fatalf("expected %v, got %v", e, a)
}
for i := range testList.Items {
gotObj := me.Get(i)
if e, a := testList.Items[i].Name, gotObj.(*api.Node).Name; e != a {
t.Errorf("Expected %v, got %v", e, a)
}
if e, a := &testList.Items[i], gotObj; !reflect.DeepEqual(e, a) {
t.Errorf("Expected %#v, got %v#", e, a)
}
}
}
type fakeClock struct {
t time.Time
}
func (f *fakeClock) Now() time.Time {
return f.t
}
func TestBind(t *testing.T) {
table := []struct {
binding *api.Binding
}{
{binding: &api.Binding{PodID: "foo", Host: "foohost.kubernetes.mydomain.com"}},
}
for _, item := range table {
handler := util.FakeHandler{
StatusCode: 200,
ResponseBody: "",
T: t,
}
server := httptest.NewServer(&handler)
defer server.Close()
client := client.NewOrDie(&client.Config{Host: server.URL, Version: testapi.Version()})
b := binder{client}
if err := b.Bind(item.binding); err != nil {
t.Errorf("Unexpected error: %v", err)
continue
}
expectedBody := runtime.EncodeOrDie(testapi.Codec(), item.binding)
handler.ValidateRequest(t, "/api/"+testapi.Version()+"/bindings", "POST", &expectedBody)
}
}
func TestBackoff(t *testing.T) {
clock := fakeClock{}
backoff := podBackoff{
perPodBackoff: map[string]*backoffEntry{},
clock: &clock,
defaultDuration: 1 * time.Second,
maxDuration: 60 * time.Second,
}
tests := []struct {
podID string
expectedDuration time.Duration
advanceClock time.Duration
}{
{
podID: "foo",
expectedDuration: 1 * time.Second,
},
{
podID: "foo",
expectedDuration: 2 * time.Second,
},
{
podID: "foo",
expectedDuration: 4 * time.Second,
},
{
podID: "bar",
expectedDuration: 1 * time.Second,
advanceClock: 120 * time.Second,
},
// 'foo' should have been gc'd here.
{
podID: "foo",
expectedDuration: 1 * time.Second,
},
}
for _, test := range tests {
duration := backoff.getBackoff(test.podID)
if duration != test.expectedDuration {
t.Errorf("expected: %s, got %s for %s", test.expectedDuration.String(), duration.String(), test.podID)
}
clock.t = clock.t.Add(test.advanceClock)
backoff.gc()
}
backoff.perPodBackoff["foo"].backoff = 60 * time.Second
duration := backoff.getBackoff("foo")
if duration != 60*time.Second {
t.Errorf("expected: 60, got %s", duration.String())
}
}