prunenulls_test.go

Documentation: k8s.io/apiextensions-apiserver/pkg/apiserver/schema/defaulting

     1  /*
     2  Copyright 2020 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 defaulting
    18  
    19  import (
    20  	"bytes"
    21  	"reflect"
    22  	"testing"
    23  
    24  	structuralschema "k8s.io/apiextensions-apiserver/pkg/apiserver/schema"
    25  	"k8s.io/apimachinery/pkg/util/json"
    26  )
    27  
    28  func TestPruneNonNullableNullsWithoutDefaults(t *testing.T) {
    29  	tests := []struct {
    30  		name     string
    31  		json     string
    32  		schema   *structuralschema.Structural
    33  		expected string
    34  	}{
    35  		{"empty", "null", nil, "null"},
    36  		{"scalar", "4", &structuralschema.Structural{
    37  			Generic: structuralschema.Generic{
    38  				Default: structuralschema.JSON{Object: "foo"},
    39  			},
    40  		}, "4"},
    41  		{"scalar array", "[1,null]", nil, "[1,null]"},
    42  		{"object array", `[{"a":null},{"b":null},{"c":null},{"d":null},{"e":null}]`, &structuralschema.Structural{
    43  			Items: &structuralschema.Structural{
    44  				Properties: map[string]structuralschema.Structural{
    45  					"a": {
    46  						Generic: structuralschema.Generic{
    47  							Default: structuralschema.JSON{Object: "A"},
    48  						},
    49  					},
    50  					"b": {
    51  						Generic: structuralschema.Generic{
    52  							Nullable: true,
    53  						},
    54  					},
    55  					"c": {
    56  						Generic: structuralschema.Generic{
    57  							Default:  structuralschema.JSON{Object: "C"},
    58  							Nullable: true,
    59  						},
    60  					},
    61  					"d": {
    62  						Generic: structuralschema.Generic{},
    63  					},
    64  				},
    65  			},
    66  		}, `[{"a":null},{"b":null},{"c":null},{},{"e":null}]`},
    67  	}
    68  	for _, tt := range tests {
    69  		t.Run(tt.name, func(t *testing.T) {
    70  			var in interface{}
    71  			if err := json.Unmarshal([]byte(tt.json), &in); err != nil {
    72  				t.Fatal(err)
    73  			}
    74  
    75  			var expected interface{}
    76  			if err := json.Unmarshal([]byte(tt.expected), &expected); err != nil {
    77  				t.Fatal(err)
    78  			}
    79  
    80  			PruneNonNullableNullsWithoutDefaults(in, tt.schema)
    81  			if !reflect.DeepEqual(in, expected) {
    82  				var buf bytes.Buffer
    83  				enc := json.NewEncoder(&buf)
    84  				enc.SetIndent("", "  ")
    85  				err := enc.Encode(in)
    86  				if err != nil {
    87  					t.Fatalf("unexpected result mashalling error: %v", err)
    88  				}
    89  				t.Errorf("expected: %s\ngot: %s", tt.expected, buf.String())
    90  			}
    91  		})
    92  	}
    93  }
    94
View as plain text