k8s.io/kubernetes@v1.29.3/pkg/kubectl/cmd/convert/convert_test.go (about)

     1  /*
     2  Copyright 2017 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 convert
    18  
    19  import (
    20  	"bytes"
    21  	"fmt"
    22  	"net/http"
    23  	"strings"
    24  	"testing"
    25  
    26  	"k8s.io/cli-runtime/pkg/genericiooptions"
    27  	"k8s.io/client-go/rest/fake"
    28  	cmdtesting "k8s.io/kubectl/pkg/cmd/testing"
    29  )
    30  
    31  type testcase struct {
    32  	name          string
    33  	file          string
    34  	outputVersion string
    35  	fields        []checkField
    36  }
    37  
    38  type checkField struct {
    39  	expected string
    40  }
    41  
    42  func TestConvertObject(t *testing.T) {
    43  	testcases := []testcase{
    44  		{
    45  			name:          "apps deployment to extensions deployment",
    46  			file:          "../../../../test/fixtures/pkg/kubectl/cmd/convert/appsdeployment.yaml",
    47  			outputVersion: "extensions/v1beta1",
    48  			fields: []checkField{
    49  				{
    50  					expected: "apiVersion: extensions/v1beta1",
    51  				},
    52  			},
    53  		},
    54  		{
    55  			name:          "extensions deployment to apps deployment",
    56  			file:          "../../../../test/fixtures/pkg/kubectl/cmd/convert/extensionsdeployment.yaml",
    57  			outputVersion: "apps/v1beta2",
    58  			fields: []checkField{
    59  				{
    60  					expected: "apiVersion: apps/v1beta2",
    61  				},
    62  			},
    63  		},
    64  		{
    65  			name:          "v1 HPA to v2beta1 HPA",
    66  			file:          "../../../../test/fixtures/pkg/kubectl/cmd/convert/v1HPA.yaml",
    67  			outputVersion: "autoscaling/v2beta1",
    68  			fields: []checkField{
    69  				{
    70  					expected: "apiVersion: autoscaling/v2beta1",
    71  				},
    72  				{
    73  					expected: "name: cpu",
    74  				},
    75  				{
    76  					expected: "targetAverageUtilization: 50",
    77  				},
    78  			},
    79  		},
    80  		{
    81  			name:          "v2beta1 HPA to v1 HPA",
    82  			file:          "../../../../test/fixtures/pkg/kubectl/cmd/convert/v2beta1HPA.yaml",
    83  			outputVersion: "autoscaling/v1",
    84  			fields: []checkField{
    85  				{
    86  					expected: "apiVersion: autoscaling/v1",
    87  				},
    88  				{
    89  					expected: "targetCPUUtilizationPercentage: 50",
    90  				},
    91  			},
    92  		},
    93  		{
    94  			name:          "v1beta1 Ingress to extensions Ingress",
    95  			file:          "../../../../test/fixtures/pkg/kubectl/cmd/convert/v1beta1ingress.yaml",
    96  			outputVersion: "extensions/v1beta1",
    97  			fields: []checkField{
    98  				{
    99  					expected: "apiVersion: extensions/v1beta1",
   100  				},
   101  			},
   102  		},
   103  		{
   104  			name:          "converting multiple including service to neworking.k8s.io/v1",
   105  			file:          "../../../../test/fixtures/pkg/kubectl/cmd/convert/serviceandingress.yaml",
   106  			outputVersion: "networking.k8s.io/v1",
   107  			fields: []checkField{
   108  				{
   109  					expected: "apiVersion: networking.k8s.io/v1",
   110  				},
   111  			},
   112  		},
   113  	}
   114  
   115  	for _, tc := range testcases {
   116  		for _, field := range tc.fields {
   117  			t.Run(fmt.Sprintf("%s %s", tc.name, field), func(t *testing.T) {
   118  				tf := cmdtesting.NewTestFactory().WithNamespace("test")
   119  				defer tf.Cleanup()
   120  
   121  				tf.UnstructuredClient = &fake.RESTClient{
   122  					Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
   123  						t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
   124  						return nil, nil
   125  					}),
   126  				}
   127  
   128  				buf := bytes.NewBuffer([]byte{})
   129  				cmd := NewCmdConvert(tf, genericiooptions.IOStreams{Out: buf, ErrOut: buf})
   130  				cmd.Flags().Set("filename", tc.file)
   131  				cmd.Flags().Set("output-version", tc.outputVersion)
   132  				cmd.Flags().Set("local", "true")
   133  				cmd.Flags().Set("output", "yaml")
   134  				cmd.Run(cmd, []string{})
   135  				if !strings.Contains(buf.String(), field.expected) {
   136  					t.Errorf("unexpected output when converting %s to %q, expected: %q, but got %q", tc.file, tc.outputVersion, field.expected, buf.String())
   137  				}
   138  			})
   139  		}
   140  	}
   141  }