96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
/*
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Copyright 2020 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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// This code is directly lifted from the Kubernetes codebase in order to avoid relying on the k8s.io/kubernetes package.
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// For reference:
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// https://github.com/kubernetes/kubernetes/blob/release-1.26/staging/src/k8s.io/component-helpers/scheduling/corev1/nodeaffinity/nodeaffinity_test.go#L297-L360
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package lifted
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import (
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"reflect"
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"testing"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/labels"
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)
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// +lifted:source=https://github.com/kubernetes/kubernetes/blob/release-1.26/staging/src/k8s.io/component-helpers/scheduling/corev1/nodeaffinity/nodeaffinity_test.go#L297-L360
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func TestNodeSelectorRequirementsAsSelector(t *testing.T) {
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matchExpressions := []corev1.NodeSelectorRequirement{{
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Key: "foo",
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Operator: corev1.NodeSelectorOpIn,
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Values: []string{"bar", "baz"},
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}}
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mustParse := func(s string) labels.Selector {
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out, e := labels.Parse(s)
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if e != nil {
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panic(e)
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}
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return out
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}
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tc := []struct {
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in []corev1.NodeSelectorRequirement
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out labels.Selector
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expectErr bool
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}{
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{in: nil, out: labels.Nothing()},
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{in: []corev1.NodeSelectorRequirement{}, out: labels.Nothing()},
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{
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in: matchExpressions,
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out: mustParse("foo in (baz,bar)"),
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},
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{
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in: []corev1.NodeSelectorRequirement{{
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Key: "foo",
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Operator: corev1.NodeSelectorOpExists,
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Values: []string{"bar", "baz"},
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}},
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expectErr: true,
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},
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{
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in: []corev1.NodeSelectorRequirement{{
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Key: "foo",
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Operator: corev1.NodeSelectorOpGt,
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Values: []string{"1"},
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}},
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out: mustParse("foo>1"),
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},
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{
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in: []corev1.NodeSelectorRequirement{{
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Key: "bar",
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Operator: corev1.NodeSelectorOpLt,
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Values: []string{"7"},
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}},
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out: mustParse("bar<7"),
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},
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}
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for i, tc := range tc {
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out, err := NodeSelectorRequirementsAsSelector(tc.in)
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if err == nil && tc.expectErr {
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t.Errorf("[%v]expected error but got none.", i)
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}
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if err != nil && !tc.expectErr {
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t.Errorf("[%v]did not expect error but got: %v", i, err)
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}
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if !reflect.DeepEqual(out, tc.out) {
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t.Errorf("[%v]expected:\n\t%+v\nbut got:\n\t%+v", i, tc.out, out)
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}
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}
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}
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