github.com/alex123012/deckhouse-controller-tools@v0.0.0-20230510090815-d594daf1af8c/pkg/schemapatcher/internal/yaml/nested_test.go (about)

     1  /*
     2  Copyright 2019 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      htcp://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 yaml
    18  
    19  import (
    20  	. "github.com/onsi/ginkgo"
    21  	. "github.com/onsi/gomega"
    22  )
    23  
    24  var _ = Describe("GetNode", func() {
    25  	tests := []struct {
    26  		name    string
    27  		obj     interface{}
    28  		path    []string
    29  		want    interface{}
    30  		found   bool
    31  		wantErr bool
    32  	}{
    33  		{name: "null",
    34  			found: true,
    35  		},
    36  		{name: "empty",
    37  			obj:   map[string]interface{}{},
    38  			found: true,
    39  			want:  map[string]interface{}{},
    40  		},
    41  		{name: "non-empty, wrong path",
    42  			obj: map[string]interface{}{
    43  				"bar": int64(42),
    44  			},
    45  			path: []string{"foo"},
    46  		},
    47  		{name: "non-empty, right path",
    48  			obj: map[string]interface{}{
    49  				"bar": int64(42),
    50  			},
    51  			path:  []string{"bar"},
    52  			want:  int64(42),
    53  			found: true,
    54  		},
    55  		{name: "non-empty, long path",
    56  			obj: map[string]interface{}{
    57  				"foo": map[string]interface{}{
    58  					"bar": int64(42),
    59  				},
    60  			},
    61  			path:  []string{"foo", "bar"},
    62  			want:  int64(42),
    63  			found: true,
    64  		},
    65  		{name: "invalid type",
    66  			obj: map[string]interface{}{
    67  				"foo": []interface{}{int64(42)},
    68  			},
    69  			path:    []string{"foo", "bar"},
    70  			wantErr: true,
    71  			found:   false,
    72  		},
    73  	}
    74  
    75  	for i := range tests {
    76  		tc := tests[i]
    77  		It("should support "+tc.name, func() {
    78  			By("setting up the test objects and desired values")
    79  			obj, err := ToYAML(tc.obj)
    80  			Expect(err).NotTo(HaveOccurred())
    81  			want, err := ToYAML(tc.want)
    82  			Expect(err).NotTo(HaveOccurred())
    83  			// remove the document node
    84  			want, _, _ = asCloseAsPossible(want)
    85  
    86  			By("calling GetNode")
    87  			node, found, err := GetNode(obj, tc.path...)
    88  			if tc.wantErr {
    89  				Expect(err).To(HaveOccurred())
    90  				return // don't check output value if there's an error
    91  			}
    92  
    93  			Expect(err).NotTo(HaveOccurred())
    94  
    95  			// remove line/column info to compare
    96  			if node != nil {
    97  				node.Line = 0
    98  				node.Column = 0
    99  			}
   100  			if want != nil {
   101  				want.Line = 0
   102  				want.Column = 0
   103  			}
   104  
   105  			By("confirming that the returned node is as we expect it")
   106  			Expect(found).To(Equal(tc.found))
   107  			if found {
   108  				Expect(node).To(Equal(want))
   109  			}
   110  		})
   111  	}
   112  })