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| 1 | +// Copyright The OpenTelemetry Authors |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +package controllers |
| 16 | + |
| 17 | +import ( |
| 18 | + "context" |
| 19 | + "testing" |
| 20 | + |
| 21 | + "github.com/stretchr/testify/assert" |
| 22 | + "github.com/stretchr/testify/require" |
| 23 | + corev1 "k8s.io/api/core/v1" |
| 24 | + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| 25 | + "k8s.io/apimachinery/pkg/runtime" |
| 26 | + "k8s.io/client-go/tools/record" |
| 27 | + ctrl "sigs.k8s.io/controller-runtime" |
| 28 | + "sigs.k8s.io/controller-runtime/pkg/client/fake" |
| 29 | + "sigs.k8s.io/controller-runtime/pkg/log/zap" |
| 30 | + |
| 31 | + "github.com/open-telemetry/opentelemetry-operator/apis/v1beta1" |
| 32 | + "github.com/open-telemetry/opentelemetry-operator/internal/config" |
| 33 | +) |
| 34 | + |
| 35 | +func TestReconcile(t *testing.T) { |
| 36 | + logger := zap.New() |
| 37 | + ctx := context.Background() |
| 38 | + |
| 39 | + scheme := runtime.NewScheme() |
| 40 | + require.NoError(t, v1beta1.AddToScheme(scheme)) |
| 41 | + require.NoError(t, corev1.AddToScheme(scheme)) |
| 42 | + |
| 43 | + tests := []struct { |
| 44 | + name string |
| 45 | + existingState []runtime.Object |
| 46 | + expectedResult ctrl.Result |
| 47 | + expectedError bool |
| 48 | + }{ |
| 49 | + { |
| 50 | + name: "collector not found", |
| 51 | + existingState: []runtime.Object{}, |
| 52 | + expectedResult: ctrl.Result{}, |
| 53 | + expectedError: false, |
| 54 | + }, |
| 55 | + { |
| 56 | + name: "unmanaged collector", |
| 57 | + existingState: []runtime.Object{ |
| 58 | + &v1beta1.OpenTelemetryCollector{ |
| 59 | + ObjectMeta: metav1.ObjectMeta{ |
| 60 | + Name: "test-collector", |
| 61 | + Namespace: "default", |
| 62 | + }, |
| 63 | + Spec: v1beta1.OpenTelemetryCollectorSpec{ |
| 64 | + OpenTelemetryCommonFields: v1beta1.OpenTelemetryCommonFields{ |
| 65 | + ManagementState: v1beta1.ManagementStateUnmanaged, |
| 66 | + }, |
| 67 | + }, |
| 68 | + }, |
| 69 | + }, |
| 70 | + expectedResult: ctrl.Result{}, |
| 71 | + expectedError: false, |
| 72 | + }, |
| 73 | + } |
| 74 | + |
| 75 | + for _, tt := range tests { |
| 76 | + t.Run(tt.name, func(t *testing.T) { |
| 77 | + client := fake.NewClientBuilder(). |
| 78 | + WithScheme(scheme). |
| 79 | + WithRuntimeObjects(tt.existingState...). |
| 80 | + Build() |
| 81 | + |
| 82 | + r := &OpenTelemetryCollectorReconciler{ |
| 83 | + Client: client, |
| 84 | + log: logger, |
| 85 | + scheme: scheme, |
| 86 | + config: config.New(), |
| 87 | + recorder: record.NewFakeRecorder(100), |
| 88 | + } |
| 89 | + |
| 90 | + result, err := r.Reconcile(ctx, ctrl.Request{}) |
| 91 | + |
| 92 | + if tt.expectedError { |
| 93 | + assert.Error(t, err) |
| 94 | + } else { |
| 95 | + assert.NoError(t, err) |
| 96 | + } |
| 97 | + assert.Equal(t, tt.expectedResult, result) |
| 98 | + }) |
| 99 | + } |
| 100 | +} |
| 101 | + |
| 102 | +func TestGetConfigMapsToRemove(t *testing.T) { |
| 103 | + r := &OpenTelemetryCollectorReconciler{} |
| 104 | + |
| 105 | + tests := []struct { |
| 106 | + name string |
| 107 | + configVersions int |
| 108 | + existingConfigMaps *corev1.ConfigMapList |
| 109 | + expectedLength int |
| 110 | + }{ |
| 111 | + { |
| 112 | + name: "no config maps", |
| 113 | + configVersions: 1, |
| 114 | + existingConfigMaps: &corev1.ConfigMapList{ |
| 115 | + Items: []corev1.ConfigMap{}, |
| 116 | + }, |
| 117 | + expectedLength: 0, |
| 118 | + }, |
| 119 | + { |
| 120 | + name: "keep one config map", |
| 121 | + configVersions: 1, |
| 122 | + existingConfigMaps: &corev1.ConfigMapList{ |
| 123 | + Items: []corev1.ConfigMap{ |
| 124 | + { |
| 125 | + ObjectMeta: metav1.ObjectMeta{ |
| 126 | + CreationTimestamp: metav1.Now(), |
| 127 | + }, |
| 128 | + }, |
| 129 | + { |
| 130 | + ObjectMeta: metav1.ObjectMeta{ |
| 131 | + CreationTimestamp: metav1.Now(), |
| 132 | + }, |
| 133 | + }, |
| 134 | + }, |
| 135 | + }, |
| 136 | + expectedLength: 0, |
| 137 | + }, |
| 138 | + } |
| 139 | + |
| 140 | + for _, tt := range tests { |
| 141 | + t.Run(tt.name, func(t *testing.T) { |
| 142 | + result := r.getConfigMapsToRemove(tt.configVersions, tt.existingConfigMaps) |
| 143 | + assert.Equal(t, tt.expectedLength, len(result)) |
| 144 | + }) |
| 145 | + } |
| 146 | +} |
| 147 | + |
| 148 | +func TestNewReconciler(t *testing.T) { |
| 149 | + scheme := runtime.NewScheme() |
| 150 | + client := fake.NewClientBuilder().WithScheme(scheme).Build() |
| 151 | + recorder := record.NewFakeRecorder(100) |
| 152 | + logger := zap.New() |
| 153 | + cfg := config.New() |
| 154 | + |
| 155 | + params := Params{ |
| 156 | + Client: client, |
| 157 | + Recorder: recorder, |
| 158 | + Scheme: scheme, |
| 159 | + Log: logger, |
| 160 | + Config: cfg, |
| 161 | + } |
| 162 | + |
| 163 | + r := NewReconciler(params) |
| 164 | + |
| 165 | + assert.Equal(t, client, r.Client) |
| 166 | + assert.Equal(t, recorder, r.recorder) |
| 167 | + assert.Equal(t, scheme, r.scheme) |
| 168 | + assert.Equal(t, logger, r.log) |
| 169 | + assert.Equal(t, cfg, r.config) |
| 170 | +} |
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