sigs.k8s.io/cluster-api-provider-azure@v1.14.3/util/maps/maps_test.go (about)

     1  /*
     2  Copyright 2022 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 maps
    18  
    19  import (
    20  	"testing"
    21  
    22  	"github.com/onsi/gomega"
    23  )
    24  
    25  func TestMerge(t *testing.T) {
    26  	tests := []struct {
    27  		name      string
    28  		base      map[string]string
    29  		overrides map[string]string
    30  		expected  map[string]string
    31  	}{
    32  		{
    33  			name:      "nil base",
    34  			base:      nil,
    35  			overrides: map[string]string{"key": "value"},
    36  			expected:  map[string]string{"key": "value"},
    37  		},
    38  		{
    39  			name:      "nil overrides",
    40  			base:      map[string]string{"key": "value"},
    41  			overrides: nil,
    42  			expected:  map[string]string{"key": "value"},
    43  		},
    44  		{
    45  			name:      "overrides takes precedence",
    46  			base:      map[string]string{"key": "base"},
    47  			overrides: map[string]string{"key": "overrides"},
    48  			expected:  map[string]string{"key": "overrides"},
    49  		},
    50  		{
    51  			name:      "non-overlapping keys are all preserved",
    52  			base:      map[string]string{"base": "value"},
    53  			overrides: map[string]string{"overrides": "value"},
    54  			expected:  map[string]string{"base": "value", "overrides": "value"},
    55  		},
    56  	}
    57  
    58  	for _, test := range tests {
    59  		t.Run(test.name, func(t *testing.T) {
    60  			g := gomega.NewWithT(t)
    61  			g.Expect(Merge(test.base, test.overrides)).To(gomega.Equal(test.expected))
    62  		})
    63  	}
    64  }