93 lines
3.5 KiB
Go
93 lines
3.5 KiB
Go
/*
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Copyright 2021 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package nodegroupset
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import (
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"testing"
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. "k8s.io/autoscaler/cluster-autoscaler/utils/test"
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)
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func TestNodeLabelComparison(t *testing.T) {
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labels := []string{"node.kubernetes.io/instance-type", "kubernetes.io/arch"}
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comparator := CreateLabelNodeInfoComparator(labels)
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node1 := BuildTestNode("node1", 1000, 2000)
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node2 := BuildTestNode("node2", 1000, 2000)
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for _, tc := range []struct {
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description string
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labels1 map[string]string
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labels2 map[string]string
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isSimilar bool
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}{
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{
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description: "both labels match",
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labels1: map[string]string{"node.kubernetes.io/instance-type": "m5.4xlarge", "kubernetes.io/arch": "amd64"},
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labels2: map[string]string{"node.kubernetes.io/instance-type": "m5.4xlarge", "kubernetes.io/arch": "amd64"},
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isSimilar: true,
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},
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{
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description: "one label doesn't match",
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labels1: map[string]string{"node.kubernetes.io/instance-type": "m5.4xlarge", "kubernetes.io/arch": "amd64"},
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labels2: map[string]string{"node.kubernetes.io/instance-type": "m5.4xlarge", "kubernetes.io/arch": "i386"},
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isSimilar: false,
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},
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{
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description: "unspecified labels are not considered",
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labels1: map[string]string{"node.kubernetes.io/instance-type": "m5.4xlarge", "kubernetes.io/arch": "amd64", "unspecified-label": "eu-west1"},
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labels2: map[string]string{"node.kubernetes.io/instance-type": "m5.4xlarge", "kubernetes.io/arch": "amd64", "unspecified-label": "eu-west2"},
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isSimilar: true,
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},
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{
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description: "no labels are set",
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labels1: map[string]string{},
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labels2: map[string]string{},
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isSimilar: false,
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},
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{
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description: "single label matches, label is unset on second group",
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labels1: map[string]string{"node.kubernetes.io/instance-type": "m5.4xlarge", "kubernetes.io/arch": "amd64"},
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labels2: map[string]string{"kubernetes.io/arch": "amd64"},
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isSimilar: false,
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},
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{
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description: "single label matches, label is unset on first group",
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labels1: map[string]string{"kubernetes.io/arch": "amd64"},
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labels2: map[string]string{"node.kubernetes.io/instance-type": "m5.4xlarge", "kubernetes.io/arch": "amd64"},
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isSimilar: false,
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},
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{
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description: "labels are explicitly set to be empty",
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labels1: map[string]string{"node.kubernetes.io/instance-type": "", "kubernetes.io/arch": ""},
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labels2: map[string]string{"node.kubernetes.io/instance-type": "", "kubernetes.io/arch": ""},
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isSimilar: true,
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},
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{
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description: "one labels is explicitly set to be empty",
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labels1: map[string]string{"node.kubernetes.io/instance-type": "", "kubernetes.io/arch": "amd64"},
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labels2: map[string]string{"node.kubernetes.io/instance-type": "", "kubernetes.io/arch": "amd64"},
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isSimilar: true,
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},
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} {
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t.Run(tc.description, func(t *testing.T) {
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node1.ObjectMeta.Labels = tc.labels1
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node2.ObjectMeta.Labels = tc.labels2
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checkNodesSimilar(t, node1, node2, comparator, tc.isSimilar)
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})
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}
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}
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