groupversion_test.go

Documentation: k8s.io/client-go/openapi

     1  /*
     2  Copyright 2023 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package openapi
    18  
    19  import (
    20  	"fmt"
    21  	"net/http"
    22  	"net/http/httptest"
    23  	"testing"
    24  
    25  	appsv1 "k8s.io/api/apps/v1"
    26  	"k8s.io/apimachinery/pkg/runtime"
    27  	"k8s.io/client-go/kubernetes/scheme"
    28  	"k8s.io/client-go/rest"
    29  )
    30  
    31  func TestGroupVersion(t *testing.T) {
    32  	tests := []struct {
    33  		name                string
    34  		prefix              string
    35  		serverReturnsPrefix bool
    36  	}{
    37  		{
    38  			name:                "no prefix",
    39  			prefix:              "",
    40  			serverReturnsPrefix: false,
    41  		},
    42  		{
    43  			name:                "prefix not in discovery",
    44  			prefix:              "/test-endpoint",
    45  			serverReturnsPrefix: false,
    46  		},
    47  		{
    48  			name:                "prefix in discovery",
    49  			prefix:              "/test-endpoint",
    50  			serverReturnsPrefix: true,
    51  		},
    52  	}
    53  
    54  	for _, test := range tests {
    55  		t.Run(test.name, func(t *testing.T) {
    56  			server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    57  				switch {
    58  				case r.URL.Path == test.prefix+"/openapi/v3/apis/apps/v1" && r.URL.RawQuery == "hash=014fbff9a07c":
    59  					w.Header().Set("Content-Type", "application/json")
    60  					w.WriteHeader(http.StatusOK)
    61  					w.Write([]byte(`{"openapi":"3.0.0","info":{"title":"Kubernetes","version":"unversioned"}}`))
    62  				case r.URL.Path == test.prefix+"/openapi/v3":
    63  					// return root content
    64  					w.Header().Set("Content-Type", "application/json")
    65  					w.WriteHeader(http.StatusOK)
    66  					if test.serverReturnsPrefix {
    67  						w.Write([]byte(fmt.Sprintf(`{"paths":{"apis/apps/v1":{"serverRelativeURL":"%s/openapi/v3/apis/apps/v1?hash=014fbff9a07c"}}}`, test.prefix)))
    68  					} else {
    69  						w.Write([]byte(`{"paths":{"apis/apps/v1":{"serverRelativeURL":"/openapi/v3/apis/apps/v1?hash=014fbff9a07c"}}}`))
    70  					}
    71  				default:
    72  					t.Errorf("unexpected request: %s", r.URL.String())
    73  					w.WriteHeader(http.StatusNotFound)
    74  					return
    75  				}
    76  			}))
    77  			defer server.Close()
    78  
    79  			c, err := rest.RESTClientFor(&rest.Config{
    80  				Host: server.URL + test.prefix,
    81  				ContentConfig: rest.ContentConfig{
    82  					NegotiatedSerializer: scheme.Codecs,
    83  					GroupVersion:         &appsv1.SchemeGroupVersion,
    84  				},
    85  			})
    86  
    87  			if err != nil {
    88  				t.Fatalf("unexpected error occurred: %v", err)
    89  			}
    90  
    91  			openapiClient := NewClient(c)
    92  			paths, err := openapiClient.Paths()
    93  			if err != nil {
    94  				t.Fatalf("unexpected error occurred: %v", err)
    95  			}
    96  			schema, err := paths["apis/apps/v1"].Schema(runtime.ContentTypeJSON)
    97  			if err != nil {
    98  				t.Fatalf("unexpected error occurred: %v", err)
    99  			}
   100  			expectedResult := `{"openapi":"3.0.0","info":{"title":"Kubernetes","version":"unversioned"}}`
   101  			if string(schema) != expectedResult {
   102  				t.Fatalf("unexpected result actual: %s expected: %s", string(schema), expectedResult)
   103  			}
   104  		})
   105  	}
   106  }
   107
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