labels_test.go

Documentation: k8s.io/apimachinery/pkg/apis/meta/v1

     1  /*
     2  Copyright 2016 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 v1
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  )
    23  
    24  func TestCloneSelectorAndAddLabel(t *testing.T) {
    25  	labels := map[string]string{
    26  		"foo1": "bar1",
    27  		"foo2": "bar2",
    28  		"foo3": "bar3",
    29  	}
    30  	matchExpressions := []LabelSelectorRequirement{
    31  		{Key: "foo", Operator: LabelSelectorOpIn, Values: []string{"foo"}},
    32  	}
    33  
    34  	cases := []struct {
    35  		labels     map[string]string
    36  		labelKey   string
    37  		labelValue string
    38  		want       map[string]string
    39  	}{
    40  		{
    41  			labels: labels,
    42  			want:   labels,
    43  		},
    44  		{
    45  			labels:     labels,
    46  			labelKey:   "foo4",
    47  			labelValue: "89",
    48  			want: map[string]string{
    49  				"foo1": "bar1",
    50  				"foo2": "bar2",
    51  				"foo3": "bar3",
    52  				"foo4": "89",
    53  			},
    54  		},
    55  		{
    56  			labels:     nil,
    57  			labelKey:   "foo4",
    58  			labelValue: "12",
    59  			want: map[string]string{
    60  				"foo4": "12",
    61  			},
    62  		},
    63  	}
    64  
    65  	for _, tc := range cases {
    66  		ls_in := LabelSelector{MatchLabels: tc.labels, MatchExpressions: matchExpressions}
    67  		ls_out := LabelSelector{MatchLabels: tc.want, MatchExpressions: matchExpressions}
    68  
    69  		got := CloneSelectorAndAddLabel(&ls_in, tc.labelKey, tc.labelValue)
    70  		if !reflect.DeepEqual(got, &ls_out) {
    71  			t.Errorf("got %v, want %v", got, tc.want)
    72  		}
    73  	}
    74  }
    75  
    76  func TestAddLabelToSelector(t *testing.T) {
    77  	labels := map[string]string{
    78  		"foo1": "bar1",
    79  		"foo2": "bar2",
    80  		"foo3": "bar3",
    81  	}
    82  
    83  	cases := []struct {
    84  		labels     map[string]string
    85  		labelKey   string
    86  		labelValue string
    87  		want       map[string]string
    88  	}{
    89  		{
    90  			labels: labels,
    91  			want:   labels,
    92  		},
    93  		{
    94  			labels:     labels,
    95  			labelKey:   "foo4",
    96  			labelValue: "89",
    97  			want: map[string]string{
    98  				"foo1": "bar1",
    99  				"foo2": "bar2",
   100  				"foo3": "bar3",
   101  				"foo4": "89",
   102  			},
   103  		},
   104  		{
   105  			labels:     nil,
   106  			labelKey:   "foo4",
   107  			labelValue: "12",
   108  			want: map[string]string{
   109  				"foo4": "12",
   110  			},
   111  		},
   112  	}
   113  
   114  	for _, tc := range cases {
   115  		ls_in := LabelSelector{MatchLabels: tc.labels}
   116  		ls_out := LabelSelector{MatchLabels: tc.want}
   117  
   118  		got := AddLabelToSelector(&ls_in, tc.labelKey, tc.labelValue)
   119  		if !reflect.DeepEqual(got, &ls_out) {
   120  			t.Errorf("got %v, want %v", got, tc.want)
   121  		}
   122  	}
   123  }
   124
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