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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,236 @@ | ||
| /* | ||
| Copyright (c) 2025 Dell Inc, or its subsidiaries. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package k8sutils | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "os" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/stretchr/testify/mock" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/rest" | ||
| ) | ||
|
|
||
| var exitFunc = os.Exit | ||
|
|
||
| type MockLeaderElection struct { | ||
| mock.Mock | ||
| } | ||
|
|
||
| func (m *MockLeaderElection) Run() error { | ||
| args := m.Called() | ||
| return args.Error(0) | ||
| } | ||
|
|
||
| func TestCreateKubeClientSet(t *testing.T) { | ||
| // Test cases | ||
| tests := []struct { | ||
| name string | ||
| kubeconfig string | ||
| configErr error | ||
| clientErr error | ||
| wantErr bool | ||
| }{ | ||
| { | ||
| name: "Valid kubeconfig", | ||
| kubeconfig: "valid_kubeconfig", | ||
| configErr: nil, | ||
| clientErr: nil, | ||
| wantErr: false, | ||
| }, | ||
| { | ||
| name: "Invalid kubeconfig", | ||
| kubeconfig: "invalid_kubeconfig", | ||
| configErr: errors.New("config error"), | ||
| clientErr: nil, | ||
| wantErr: true, | ||
| }, | ||
| { | ||
| name: "In-cluster config", | ||
| kubeconfig: "", | ||
| configErr: nil, | ||
| clientErr: nil, | ||
| wantErr: false, | ||
| }, | ||
| { | ||
| name: "In-cluster config error", | ||
| kubeconfig: "", | ||
| configErr: errors.New("config error"), | ||
| clientErr: nil, | ||
| wantErr: true, | ||
| }, | ||
| { | ||
| name: "New for config error", | ||
| kubeconfig: "", | ||
| configErr: nil, | ||
| clientErr: errors.New("client error"), | ||
| wantErr: true, | ||
| }, | ||
| { | ||
| name: "New for config error", | ||
| kubeconfig: "invalid_kubeconfig", | ||
| configErr: nil, | ||
| clientErr: errors.New("client error"), | ||
| wantErr: true, | ||
| }, | ||
| } | ||
|
|
||
| // Save original functions | ||
| origBuildConfigFromFlags := buildConfigFromFlags | ||
| origInClusterConfig := inClusterConfig | ||
| origNewForConfig := newForConfig | ||
|
|
||
| // Restore original functions after tests | ||
| defer func() { | ||
| buildConfigFromFlags = origBuildConfigFromFlags | ||
| inClusterConfig = origInClusterConfig | ||
| newForConfig = origNewForConfig | ||
| }() | ||
|
|
||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| // Mock functions | ||
| buildConfigFromFlags = func(_, _ string) (*rest.Config, error) { | ||
| return &rest.Config{}, tt.configErr | ||
| } | ||
| inClusterConfig = func() (*rest.Config, error) { | ||
| return &rest.Config{}, tt.configErr | ||
| } | ||
| newForConfig = func(_ *rest.Config) (*kubernetes.Clientset, error) { | ||
| if tt.clientErr != nil { | ||
| return nil, tt.clientErr | ||
| } | ||
| return &kubernetes.Clientset{}, nil | ||
| } | ||
|
|
||
| clientset, err := CreateKubeClientSet(tt.kubeconfig) | ||
| if (err != nil) != tt.wantErr { | ||
| t.Errorf("CreateKubeClientSet() error = %v, wantErr %v", err, tt.wantErr) | ||
| return | ||
| } | ||
| if !tt.wantErr && clientset == nil { | ||
| t.Errorf("CreateKubeClientSet() = nil, want non-nil") | ||
| } | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| func TestGetStats(t *testing.T) { | ||
| // Set up the necessary dependencies | ||
| ctx := context.Background() | ||
| volumePath := "/path/to/volume" | ||
| availableBytes, totalBytes, usedBytes, totalInodes, freeInodes, usedInodes, _ := GetStats(ctx, volumePath) | ||
|
|
||
| expectedAvailableBytes := int64(0) | ||
| expectedTotalBytes := int64(0) | ||
| expectedUsedBytes := int64(0) | ||
| expectedTotalInodes := int64(0) | ||
| expectedFreeInodes := int64(0) | ||
| expectedUsedInodes := int64(0) | ||
| if availableBytes != expectedAvailableBytes { | ||
| t.Errorf("Expected availableBytes to be %d, but got %d", expectedAvailableBytes, availableBytes) | ||
| } | ||
| if totalBytes != expectedTotalBytes { | ||
| t.Errorf("Expected totalBytes to be %d, but got %d", expectedTotalBytes, totalBytes) | ||
| } | ||
| if usedBytes != expectedUsedBytes { | ||
| t.Errorf("Expected usedBytes to be %d, but got %d", expectedUsedBytes, usedBytes) | ||
| } | ||
| if totalInodes != expectedTotalInodes { | ||
| t.Errorf("Expected totalInodes to be %d, but got %d", expectedTotalInodes, totalInodes) | ||
| } | ||
| if freeInodes != expectedFreeInodes { | ||
| t.Errorf("Expected freeInodes to be %d, but got %d", expectedFreeInodes, freeInodes) | ||
| } | ||
| if usedInodes != expectedUsedInodes { | ||
| t.Errorf("Expected usedInodes to be %d, but got %d", expectedUsedInodes, usedInodes) | ||
| } | ||
| } | ||
|
|
||
| func TestGetStatsNoError(t *testing.T) { | ||
| // Set up the necessary dependencies | ||
| defaultFsInfo := fsInfo | ||
| fsInfo = func(_ context.Context, _ string) (int64, int64, int64, int64, int64, int64, error) { | ||
| return 1, 1, 1, 1, 1, 1, nil | ||
| } | ||
| defer func() { | ||
| fsInfo = defaultFsInfo | ||
| }() | ||
|
|
||
| ctx := context.Background() | ||
| volumePath := "/path/to/volume" | ||
| availableBytes, totalBytes, usedBytes, totalInodes, freeInodes, usedInodes, _ := GetStats(ctx, volumePath) | ||
|
|
||
| expectedAvailableBytes := int64(1) | ||
| expectedTotalBytes := int64(1) | ||
| expectedUsedBytes := int64(1) | ||
| expectedTotalInodes := int64(1) | ||
| expectedFreeInodes := int64(1) | ||
| expectedUsedInodes := int64(1) | ||
| if availableBytes != expectedAvailableBytes { | ||
| t.Errorf("Expected availableBytes to be %d, but got %d", expectedAvailableBytes, availableBytes) | ||
| } | ||
| if totalBytes != expectedTotalBytes { | ||
| t.Errorf("Expected totalBytes to be %d, but got %d", expectedTotalBytes, totalBytes) | ||
| } | ||
| if usedBytes != expectedUsedBytes { | ||
| t.Errorf("Expected usedBytes to be %d, but got %d", expectedUsedBytes, usedBytes) | ||
| } | ||
| if totalInodes != expectedTotalInodes { | ||
| t.Errorf("Expected totalInodes to be %d, but got %d", expectedTotalInodes, totalInodes) | ||
| } | ||
| if freeInodes != expectedFreeInodes { | ||
| t.Errorf("Expected freeInodes to be %d, but got %d", expectedFreeInodes, freeInodes) | ||
| } | ||
| if usedInodes != expectedUsedInodes { | ||
| t.Errorf("Expected usedInodes to be %d, but got %d", expectedUsedInodes, usedInodes) | ||
| } | ||
| } | ||
|
|
||
| func TestLeaderElection(t *testing.T) { | ||
| clientset := &kubernetes.Clientset{} // Mock or use a fake clientset if needed | ||
| runFunc := func(_ context.Context) { | ||
| fmt.Println("Running leader function") | ||
| } | ||
|
|
||
| mockLE := new(MockLeaderElection) | ||
| mockLE.On("Run").Return(nil) // Mocking a successful run | ||
|
|
||
| // Override exitFunc to prevent test from exiting | ||
| exitCalled := false | ||
| oldExit := exitFunc | ||
| defer func() { recover(); exitFunc = oldExit }() | ||
| exitFunc = func(_ int) { exitCalled = true; panic("exitFunc called") } | ||
|
|
||
| // Simulate LeaderElection function | ||
| func() { | ||
| defer func() { | ||
| if r := recover(); r != nil { | ||
| exitCalled = true | ||
| } | ||
| }() | ||
| LeaderElection(clientset, "test-lock", "test-namespace", time.Second, time.Second*2, time.Second*3, runFunc) | ||
| }() | ||
|
|
||
| if !exitCalled { | ||
| t.Errorf("exitFunc was called unexpectedly") | ||
| } | ||
| } |
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