github.com/nmstate/kubernetes-nmstate@v0.82.0/pkg/node/nodes_test.go (about) 1 /* 2 Copyright The Kubernetes NMState Authors. 3 4 5 Licensed under the Apache License, Version 2.0 (the "License"); 6 you may not use this file except in compliance with the License. 7 You may obtain a copy of the License at 8 9 http://www.apache.org/licenses/LICENSE-2.0 10 11 Unless required by applicable law or agreed to in writing, software 12 distributed under the License is distributed on an "AS IS" BASIS, 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 See the License for the specific language governing permissions and 15 limitations under the License. 16 */ 17 18 package node 19 20 import ( 21 . "github.com/onsi/ginkgo/v2" 22 . "github.com/onsi/gomega" 23 24 "github.com/onsi/gomega/types" 25 "k8s.io/apimachinery/pkg/util/intstr" 26 ) 27 28 var _ = Describe("MaxUnavailable nodes", func() { 29 type maxUnavailableCase struct { 30 nmstateEnabledNodes int 31 maxUnavailable intstr.IntOrString 32 expectedScaledMaxUnavailable int 33 expectedError types.GomegaMatcher 34 } 35 DescribeTable("testing ScaledMaxUnavailableNodeCount", 36 func(c maxUnavailableCase) { 37 maxUnavailable, err := ScaledMaxUnavailableNodeCount(c.nmstateEnabledNodes, c.maxUnavailable) 38 Expect(err).To(c.expectedError) 39 Expect(maxUnavailable).To(Equal(c.expectedScaledMaxUnavailable)) 40 }, 41 Entry("Default maxUnavailable with odd number of nodes", 42 maxUnavailableCase{ 43 nmstateEnabledNodes: 5, 44 maxUnavailable: intstr.FromString(DefaultMaxunavailable), 45 expectedScaledMaxUnavailable: 3, 46 expectedError: Not(HaveOccurred()), 47 }), 48 Entry("Default maxUnavailable with even number of nodes", 49 maxUnavailableCase{ 50 nmstateEnabledNodes: 6, 51 maxUnavailable: intstr.FromString(DefaultMaxunavailable), 52 expectedScaledMaxUnavailable: 3, 53 expectedError: Not(HaveOccurred()), 54 }), 55 Entry("Absolute maxUnavailable with odd number of nodes", 56 maxUnavailableCase{ 57 nmstateEnabledNodes: 5, 58 maxUnavailable: intstr.FromInt(3), 59 expectedScaledMaxUnavailable: 3, 60 expectedError: Not(HaveOccurred()), 61 }), 62 Entry("Absolute maxUnavailable with even number of nodes", 63 maxUnavailableCase{ 64 nmstateEnabledNodes: 6, 65 maxUnavailable: intstr.FromInt(3), 66 expectedScaledMaxUnavailable: 3, 67 expectedError: Not(HaveOccurred()), 68 }), 69 Entry("Wrong string value", 70 maxUnavailableCase{ 71 nmstateEnabledNodes: 5, 72 maxUnavailable: intstr.FromString("asdf"), 73 expectedScaledMaxUnavailable: 3, 74 expectedError: HaveOccurred(), 75 }), 76 Entry("Absolute value in string", 77 maxUnavailableCase{ 78 nmstateEnabledNodes: 5, 79 maxUnavailable: intstr.FromString("42"), 80 expectedScaledMaxUnavailable: 3, 81 expectedError: HaveOccurred(), 82 }), 83 Entry("Zero percent", 84 maxUnavailableCase{ 85 nmstateEnabledNodes: 5, 86 maxUnavailable: intstr.FromString("0%"), 87 expectedScaledMaxUnavailable: 1, 88 expectedError: Not(HaveOccurred()), 89 }), 90 Entry("Zero value", 91 maxUnavailableCase{ 92 nmstateEnabledNodes: 5, 93 maxUnavailable: intstr.FromInt(0), 94 expectedScaledMaxUnavailable: 1, 95 expectedError: Not(HaveOccurred()), 96 })) 97 })