sigs.k8s.io/cluster-api@v1.6.3/internal/util/taints/taints_test.go (about)

     1  /*
     2  Copyright 2023 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 taints
    18  
    19  import (
    20  	"testing"
    21  
    22  	. "github.com/onsi/gomega"
    23  	corev1 "k8s.io/api/core/v1"
    24  )
    25  
    26  func TestRemoveNodeTaint(t *testing.T) {
    27  	taint1 := corev1.Taint{Key: "taint1", Effect: corev1.TaintEffectNoSchedule}
    28  	taint2 := corev1.Taint{Key: "taint2", Effect: corev1.TaintEffectNoSchedule}
    29  
    30  	tests := []struct {
    31  		name         string
    32  		node         *corev1.Node
    33  		dropTaint    corev1.Taint
    34  		wantTaints   []corev1.Taint
    35  		wantModified bool
    36  	}{
    37  		{
    38  			name: "dropping taint from node should return true",
    39  			node: &corev1.Node{Spec: corev1.NodeSpec{
    40  				Taints: []corev1.Taint{
    41  					taint1,
    42  					taint2,
    43  				}}},
    44  			dropTaint:    taint1,
    45  			wantTaints:   []corev1.Taint{taint2},
    46  			wantModified: true,
    47  		},
    48  		{
    49  			name: "drop non-existing taint should return false",
    50  			node: &corev1.Node{Spec: corev1.NodeSpec{
    51  				Taints: []corev1.Taint{
    52  					taint2,
    53  				}}},
    54  			dropTaint:    taint1,
    55  			wantTaints:   []corev1.Taint{taint2},
    56  			wantModified: false,
    57  		},
    58  		{
    59  			name: "drop last taint should return true",
    60  			node: &corev1.Node{Spec: corev1.NodeSpec{
    61  				Taints: []corev1.Taint{
    62  					taint1,
    63  				}}},
    64  			dropTaint:    taint1,
    65  			wantTaints:   []corev1.Taint{},
    66  			wantModified: true,
    67  		},
    68  	}
    69  
    70  	for _, tt := range tests {
    71  		t.Run(tt.name, func(t *testing.T) {
    72  			g := NewWithT(t)
    73  			got := RemoveNodeTaint(tt.node, tt.dropTaint)
    74  			g.Expect(got).To(Equal(tt.wantModified))
    75  			g.Expect(tt.node.Spec.Taints).To(BeComparableTo(tt.wantTaints))
    76  		})
    77  	}
    78  }