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configobservation/etcd: add basic test cases
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119 changes: 119 additions & 0 deletions
119
pkg/operator/configobservation/etcd/observe_etcd_test.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| package etcd | ||
|
|
||
| import ( | ||
| "github.com/openshift/cluster-kube-apiserver-operator/pkg/operator/configobservation" | ||
| "github.com/openshift/library-go/pkg/operator/events" | ||
| v1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" | ||
| "k8s.io/client-go/kubernetes/fake" | ||
| corev1listers "k8s.io/client-go/listers/core/v1" | ||
| "k8s.io/client-go/tools/cache" | ||
| "reflect" | ||
| "testing" | ||
| ) | ||
|
|
||
| const clusterFQDN = "foo.bar" | ||
|
|
||
| func fakeObjectReference(ep *v1.Endpoints) *v1.ObjectReference { | ||
| return &v1.ObjectReference{ | ||
| Kind: ep.Kind, | ||
| Namespace: ep.Namespace, | ||
| Name: ep.Name, | ||
| UID: ep.UID, | ||
| APIVersion: ep.APIVersion, | ||
| ResourceVersion: ep.ResourceVersion, | ||
| } | ||
| } | ||
|
|
||
| func getWantObserverConfig(etcdURLs []string) (map[string]interface{}, error) { | ||
| wantObserverConfig := map[string]interface{}{} | ||
| storageConfigURLsPath := []string{"storageConfig", "urls"} | ||
| if err := unstructured.SetNestedStringSlice(wantObserverConfig, etcdURLs, storageConfigURLsPath...); err != nil { | ||
| return nil, err | ||
| } | ||
| return wantObserverConfig, nil | ||
| } | ||
|
|
||
| func getEndpoint(hostname, ip string) *v1.Endpoints { | ||
| return &v1.Endpoints{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: "host-etcd", | ||
| Namespace: "openshift-etcd", | ||
| Annotations: map[string]string{ | ||
| "alpha.installer.openshift.io/dns-suffix": clusterFQDN, | ||
| }, | ||
| }, | ||
| Subsets: []v1.EndpointSubset{ | ||
| { | ||
| Addresses: []v1.EndpointAddress{ | ||
| { | ||
| IP: ip, | ||
| Hostname: hostname, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| func TestObserveStorageURLs(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| indexer cache.Indexer | ||
| currentConfig map[string]interface{} | ||
| wantStorageURLs []string | ||
| wantErrs []error | ||
| endpoint *v1.Endpoints | ||
| }{ | ||
| { | ||
| name: "test etcd-bootstrap with dummy IP", | ||
| indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}), | ||
| currentConfig: nil, | ||
| wantStorageURLs: []string{"https://etcd-bootstrap." + clusterFQDN + ":2379"}, | ||
| wantErrs: nil, | ||
| endpoint: getEndpoint("etcd-bootstrap", "192.0.2.1"), | ||
| }, | ||
| { | ||
| name: "test etcd-bootstrap with real IP", | ||
| indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}), | ||
| currentConfig: nil, | ||
| wantStorageURLs: []string{"https://10.0.0.1:2379"}, | ||
| wantErrs: nil, | ||
| endpoint: getEndpoint("etcd-bootstrap", "10.0.0.1"), | ||
| }, | ||
| { | ||
| name: "test etcd member", | ||
| indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}), | ||
| currentConfig: nil, | ||
| wantStorageURLs: []string{"https://etcd-0." + clusterFQDN + ":2379"}, | ||
| wantErrs: nil, | ||
| endpoint: getEndpoint("etcd-0", "192.0.2.1"), | ||
| }, | ||
| // TODO: Add more test cases | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| client := fake.NewSimpleClientset() | ||
| lister := configobservation.Listers{ | ||
| OpenshiftEtcdEndpointsLister: corev1listers.NewEndpointsLister(tt.indexer), | ||
| } | ||
| r := events.NewRecorder(client.CoreV1().Events("openshift-etcd"), "test-operator", | ||
| fakeObjectReference(tt.endpoint)) | ||
| if err := tt.indexer.Add(tt.endpoint); err != nil { | ||
| t.Errorf("error adding endpoint to store: %#v", err) | ||
| } | ||
| wantObserverConfig, err := getWantObserverConfig(tt.wantStorageURLs) | ||
| if err != nil { | ||
| t.Errorf("error getting wantObserverConfig: %#v", err) | ||
| } | ||
| gotObservedConfig, gotErrs := ObserveStorageURLs(lister, r, tt.currentConfig) | ||
| if !reflect.DeepEqual(gotObservedConfig, wantObserverConfig) { | ||
| t.Errorf("ObserveStorageURLs() gotObservedConfig = %v, want %v", gotObservedConfig, wantObserverConfig) | ||
| } | ||
| if !reflect.DeepEqual(gotErrs, tt.wantErrs) { | ||
| t.Errorf("ObserveStorageURLs() gotErrs = %v, want %v", gotErrs, tt.wantErrs) | ||
| } | ||
| }) | ||
| } | ||
| } |
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