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| 1 | +// Copyright 2024 Nutanix. All rights reserved. |
| 2 | +// SPDX-License-Identifier: Apache-2.0 |
| 3 | + |
| 4 | +package namespacesync |
| 5 | + |
| 6 | +import ( |
| 7 | + "context" |
| 8 | + "testing" |
| 9 | + |
| 10 | + . "github.com/onsi/gomega" |
| 11 | + corev1 "k8s.io/api/core/v1" |
| 12 | + clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1" |
| 13 | + |
| 14 | + "github.com/nutanix-cloud-native/cluster-api-runtime-extensions-nutanix/internal/test/builder" |
| 15 | +) |
| 16 | + |
| 17 | +func TestWalkReferences(t *testing.T) { |
| 18 | + tests := []struct { |
| 19 | + name string |
| 20 | + clusterClass *clusterv1.ClusterClass |
| 21 | + }{ |
| 22 | + { |
| 23 | + name: "nil ClusterClass should return nil without calling callback", |
| 24 | + clusterClass: nil, |
| 25 | + }, |
| 26 | + { |
| 27 | + name: "empty ClusterClass with no template references", |
| 28 | + clusterClass: builder.ClusterClass("default", "test-cc").Build(), |
| 29 | + }, |
| 30 | + { |
| 31 | + name: "ClusterClass with Infrastructure cluster template reference only", |
| 32 | + clusterClass: builder.ClusterClass("default", "test-cc"). |
| 33 | + WithInfrastructureClusterTemplate( |
| 34 | + builder.InfrastructureClusterTemplate("default", "infra-template").Build(), |
| 35 | + ).Build(), |
| 36 | + }, |
| 37 | + { |
| 38 | + name: "ClusterClass with ControlPlane template reference only", |
| 39 | + clusterClass: builder.ClusterClass("default", "test-cc"). |
| 40 | + WithControlPlaneTemplate( |
| 41 | + builder.ControlPlaneTemplate("default", "cp-template").Build(), |
| 42 | + ).Build(), |
| 43 | + }, |
| 44 | + { |
| 45 | + name: "ClusterClass with MachineInfrastructure template reference", |
| 46 | + clusterClass: builder.ClusterClass("default", "test-cc"). |
| 47 | + WithControlPlaneInfrastructureMachineTemplate( |
| 48 | + builder.InfrastructureMachineTemplate("default", "cp-machine-template").Build(), |
| 49 | + ).Build(), |
| 50 | + }, |
| 51 | + { |
| 52 | + name: "ClusterClass with MachineDeployments template references", |
| 53 | + clusterClass: builder.ClusterClass("default", "test-cc"). |
| 54 | + WithWorkerMachineDeploymentClasses( |
| 55 | + *builder.MachineDeploymentClass("worker-1"). |
| 56 | + WithInfrastructureTemplate( |
| 57 | + builder.InfrastructureMachineTemplate("default", "worker-infra-template").Build(), |
| 58 | + ). |
| 59 | + WithBootstrapTemplate( |
| 60 | + builder.BootstrapTemplate("default", "worker-bootstrap-template").Build(), |
| 61 | + ).Build(), |
| 62 | + ).Build(), |
| 63 | + }, |
| 64 | + { |
| 65 | + name: "ClusterClass with MachineDeployments having nil Infrastructure template reference", |
| 66 | + clusterClass: builder.ClusterClass("default", "test-cc"). |
| 67 | + WithWorkerMachineDeploymentClasses( |
| 68 | + *builder.MachineDeploymentClass("worker-1"). |
| 69 | + WithBootstrapTemplate( |
| 70 | + builder.BootstrapTemplate("default", "worker-bootstrap-template").Build(), |
| 71 | + ).Build(), |
| 72 | + ).Build(), |
| 73 | + }, |
| 74 | + { |
| 75 | + name: "ClusterClass with MachineDeployments having nil Bootstrap template reference", |
| 76 | + clusterClass: builder.ClusterClass("default", "test-cc"). |
| 77 | + WithWorkerMachineDeploymentClasses( |
| 78 | + *builder.MachineDeploymentClass("worker-1"). |
| 79 | + WithInfrastructureTemplate( |
| 80 | + builder.InfrastructureMachineTemplate("default", "worker-infra-template").Build(), |
| 81 | + ).Build(), |
| 82 | + ).Build(), |
| 83 | + }, |
| 84 | + { |
| 85 | + name: "callback function returns error", |
| 86 | + clusterClass: builder.ClusterClass("default", "test-cc"). |
| 87 | + WithInfrastructureClusterTemplate( |
| 88 | + builder.InfrastructureClusterTemplate("default", "infra-template").Build(), |
| 89 | + ).Build(), |
| 90 | + }, |
| 91 | + { |
| 92 | + name: "complete ClusterClass with all template references", |
| 93 | + clusterClass: builder.ClusterClass("default", "test-cc"). |
| 94 | + WithInfrastructureClusterTemplate( |
| 95 | + builder.InfrastructureClusterTemplate("default", "infra-template").Build(), |
| 96 | + ). |
| 97 | + WithControlPlaneTemplate( |
| 98 | + builder.ControlPlaneTemplate("default", "cp-template").Build(), |
| 99 | + ). |
| 100 | + WithControlPlaneInfrastructureMachineTemplate( |
| 101 | + builder.InfrastructureMachineTemplate("default", "cp-machine-template").Build(), |
| 102 | + ). |
| 103 | + WithWorkerMachineDeploymentClasses( |
| 104 | + *builder.MachineDeploymentClass("worker-1"). |
| 105 | + WithInfrastructureTemplate( |
| 106 | + builder.InfrastructureMachineTemplate("default", "worker-infra-template").Build(), |
| 107 | + ). |
| 108 | + WithBootstrapTemplate( |
| 109 | + builder.BootstrapTemplate("default", "worker-bootstrap-template").Build(), |
| 110 | + ).Build(), |
| 111 | + *builder.MachineDeploymentClass("worker-2"). |
| 112 | + WithInfrastructureTemplate( |
| 113 | + builder.InfrastructureMachineTemplate("default", "worker2-infra-template").Build(), |
| 114 | + ). |
| 115 | + WithBootstrapTemplate( |
| 116 | + builder.BootstrapTemplate("default", "worker2-bootstrap-template").Build(), |
| 117 | + ).Build(), |
| 118 | + ).Build(), |
| 119 | + }, |
| 120 | + } |
| 121 | + |
| 122 | + for _, tt := range tests { |
| 123 | + t.Run(tt.name, func(t *testing.T) { |
| 124 | + t.Parallel() |
| 125 | + g := NewWithT(t) |
| 126 | + ctx := context.Background() |
| 127 | + var capturedRefs []*corev1.ObjectReference |
| 128 | + |
| 129 | + callback := func(ctx context.Context, ref *corev1.ObjectReference) error { |
| 130 | + capturedRefs = append(capturedRefs, ref) |
| 131 | + return nil |
| 132 | + } |
| 133 | + |
| 134 | + err := walkReferences(ctx, tt.clusterClass, callback) |
| 135 | + |
| 136 | + g.Expect(err).ToNot(HaveOccurred()) |
| 137 | + |
| 138 | + // Verify that captured references match expected ones |
| 139 | + if tt.clusterClass != nil { |
| 140 | + expectedRefs := collectExpectedRefs(tt.clusterClass) |
| 141 | + g.Expect(capturedRefs). |
| 142 | + To(HaveLen(len(expectedRefs)), "Expected %d references, got %d", len(expectedRefs), len(capturedRefs)) |
| 143 | + |
| 144 | + for i, expectedRef := range expectedRefs { |
| 145 | + if expectedRef != nil { |
| 146 | + g.Expect(capturedRefs[i]).To(Equal(expectedRef), "Reference doesn't match") |
| 147 | + } |
| 148 | + } |
| 149 | + } |
| 150 | + }) |
| 151 | + } |
| 152 | +} |
| 153 | + |
| 154 | +func collectExpectedRefs(cc *clusterv1.ClusterClass) []*corev1.ObjectReference { |
| 155 | + var refs []*corev1.ObjectReference |
| 156 | + |
| 157 | + if cc.Spec.Infrastructure.Ref != nil { |
| 158 | + refs = append(refs, cc.Spec.Infrastructure.Ref) |
| 159 | + } |
| 160 | + |
| 161 | + if cc.Spec.ControlPlane.Ref != nil { |
| 162 | + refs = append(refs, cc.Spec.ControlPlane.Ref) |
| 163 | + } |
| 164 | + |
| 165 | + if cpInfra := cc.Spec.ControlPlane.MachineInfrastructure; cpInfra != nil && cpInfra.Ref != nil { |
| 166 | + refs = append(refs, cpInfra.Ref) |
| 167 | + } |
| 168 | + |
| 169 | + for _, md := range cc.Spec.Workers.MachineDeployments { |
| 170 | + if md.Template.Infrastructure.Ref != nil { |
| 171 | + refs = append(refs, md.Template.Infrastructure.Ref) |
| 172 | + } |
| 173 | + if md.Template.Bootstrap.Ref != nil { |
| 174 | + refs = append(refs, md.Template.Bootstrap.Ref) |
| 175 | + } |
| 176 | + } |
| 177 | + |
| 178 | + return refs |
| 179 | +} |
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