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operator/pkg/util: unit test endpoint
In this commit, we unit test endpoint on getting control plane endpoint and API Service IP. Signed-off-by: Mohamed Awnallah <[email protected]>
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/* | ||
Copyright 2024 The Karmada Authors. | ||
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. | ||
*/ | ||
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package util | ||
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import ( | ||
"context" | ||
"fmt" | ||
"strings" | ||
"testing" | ||
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corev1 "k8s.io/api/core/v1" | ||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
clientset "k8s.io/client-go/kubernetes" | ||
fakeclientset "k8s.io/client-go/kubernetes/fake" | ||
) | ||
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func TestGetControlPlaneEndpoint(t *testing.T) { | ||
tests := []struct { | ||
name string | ||
address string | ||
port string | ||
wantErr bool | ||
wantEndpoint string | ||
}{ | ||
{ | ||
name: "GetControlplaneEndpoint_InvalidAddress_AddressIsInvalid", | ||
address: "192.168:1:1", | ||
port: "6060", | ||
wantErr: true, | ||
}, | ||
{ | ||
name: "GetControlplaneEndpoint_ParseEndpoint_EndpointParsed", | ||
address: "192.168.1.1", | ||
port: "6060", | ||
wantErr: false, | ||
wantEndpoint: "https://192.168.1.1:6060", | ||
}, | ||
} | ||
for _, test := range tests { | ||
t.Run(test.name, func(t *testing.T) { | ||
controlPlaneEndpoint, err := GetControlplaneEndpoint(test.address, test.port) | ||
if err == nil && test.wantErr { | ||
t.Errorf("expected an error, but got none") | ||
} | ||
if err != nil && !test.wantErr { | ||
t.Errorf("unexpected error, got: %v", err) | ||
} | ||
if controlPlaneEndpoint != test.wantEndpoint { | ||
t.Errorf("expected endpoint %s, but got %s", test.wantEndpoint, controlPlaneEndpoint) | ||
} | ||
}) | ||
} | ||
} | ||
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func TestGetAPIServiceIP(t *testing.T) { | ||
tests := []struct { | ||
name string | ||
client clientset.Interface | ||
prep func(clientset.Interface) error | ||
wantAPIServiceIP string | ||
wantErr bool | ||
errMsg string | ||
}{ | ||
{ | ||
name: "GetAPIServiceIP_WithNoNodesInTheCluster_FailedToGetAPIServiceIP", | ||
client: fakeclientset.NewSimpleClientset(), | ||
prep: func(clientset.Interface) error { return nil }, | ||
wantErr: true, | ||
errMsg: "there are no nodes in cluster", | ||
}, | ||
{ | ||
name: "GetAPIServiceIP_WithoutMasterNode_WorkerNodeAPIServiceIPReturned", | ||
client: fakeclientset.NewSimpleClientset(), | ||
prep: func(client clientset.Interface) error { | ||
nodes := []*corev1.Node{ | ||
{ | ||
ObjectMeta: metav1.ObjectMeta{ | ||
Name: "node-1", | ||
}, | ||
Status: corev1.NodeStatus{ | ||
Addresses: []corev1.NodeAddress{ | ||
{ | ||
Type: corev1.NodeInternalIP, | ||
Address: "192.168.1.2", | ||
}, | ||
}, | ||
}, | ||
}, | ||
} | ||
for _, node := range nodes { | ||
_, err := client.CoreV1().Nodes().Create(context.TODO(), node, metav1.CreateOptions{}) | ||
if err != nil { | ||
return fmt.Errorf("failed to create node %s: %v", node.Name, err) | ||
} | ||
} | ||
return nil | ||
}, | ||
wantErr: false, | ||
wantAPIServiceIP: "192.168.1.2", | ||
}, | ||
{ | ||
name: "GetAPIServiceIP_WithMasterNode_MasterNodeAPIServiceIPReturned", | ||
client: fakeclientset.NewSimpleClientset(), | ||
prep: func(client clientset.Interface) error { | ||
nodes := []*corev1.Node{ | ||
{ | ||
ObjectMeta: metav1.ObjectMeta{ | ||
Name: "node-1", | ||
Labels: map[string]string{ | ||
"node-role.kubernetes.io/master": "", | ||
}, | ||
}, | ||
Status: corev1.NodeStatus{ | ||
Addresses: []corev1.NodeAddress{ | ||
{ | ||
Type: corev1.NodeInternalIP, | ||
Address: "192.168.1.1", | ||
}, | ||
}, | ||
}, | ||
}, | ||
{ | ||
ObjectMeta: metav1.ObjectMeta{ | ||
Name: "node-2", | ||
}, | ||
Status: corev1.NodeStatus{ | ||
Addresses: []corev1.NodeAddress{ | ||
{ | ||
Type: corev1.NodeInternalIP, | ||
Address: "192.168.1.2", | ||
}, | ||
}, | ||
}, | ||
}, | ||
} | ||
for _, node := range nodes { | ||
_, err := client.CoreV1().Nodes().Create(context.TODO(), node, metav1.CreateOptions{}) | ||
if err != nil { | ||
return fmt.Errorf("failed to create node %s: %v", node.Name, err) | ||
} | ||
} | ||
return nil | ||
}, | ||
wantErr: false, | ||
wantAPIServiceIP: "192.168.1.1", | ||
}, | ||
} | ||
for _, test := range tests { | ||
t.Run(test.name, func(t *testing.T) { | ||
if err := test.prep(test.client); err != nil { | ||
t.Errorf("failed to prep before getting API service IP: %v", err) | ||
} | ||
apiServiceIP, err := GetAPIServiceIP(test.client) | ||
if err == nil && test.wantErr { | ||
t.Errorf("expected an error, but got none") | ||
} | ||
if err != nil && !test.wantErr { | ||
t.Errorf("unexpected error, got: %v", err) | ||
} | ||
if err != nil && test.wantErr && !strings.Contains(err.Error(), test.errMsg) { | ||
t.Errorf("expected error message %s to be in %s", test.errMsg, err.Error()) | ||
} | ||
if apiServiceIP != test.wantAPIServiceIP { | ||
t.Errorf("expected API service IP %s, but got %s", test.wantAPIServiceIP, apiServiceIP) | ||
} | ||
}) | ||
} | ||
} |