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Adding fake tests for snapshot_inspector.go
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shlokc9 committed Jul 29, 2024
1 parent e8ad4f8 commit 3a2d883
Showing 1 changed file with 209 additions and 0 deletions.
209 changes: 209 additions & 0 deletions pkg/csi/snapshot_inspector_test.go
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package csi

import (
"context"
"fmt"

"github.com/golang/mock/gomock"
"github.com/kastenhq/kubestr/pkg/csi/mocks"
"github.com/kastenhq/kubestr/pkg/csi/types"
snapv1 "github.com/kubernetes-csi/external-snapshotter/client/v4/apis/volumesnapshot/v1"
. "gopkg.in/check.v1"
v1 "k8s.io/api/core/v1"
sv1 "k8s.io/api/storage/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/dynamic"
fakedynamic "k8s.io/client-go/dynamic/fake"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/kubernetes/fake"
)

func (s *CSITestSuite) TestRunSnapshotBrowseHelper(c *C) {
ctx := context.Background()
type fields struct {
stepperOps *mocks.MockSnapshotBrowserStepper
}
for _, tc := range []struct {
kubeCli kubernetes.Interface
dynCli dynamic.Interface
args *types.SnapshotBrowseArgs
prepare func(f *fields)
errChecker Checker
}{
{
// success
kubeCli: fake.NewSimpleClientset(),
dynCli: fakedynamic.NewSimpleDynamicClient(runtime.NewScheme()),
args: &types.SnapshotBrowseArgs{},
prepare: func(f *fields) {
gomock.InOrder(
f.stepperOps.EXPECT().ValidateArgs(gomock.Any(), gomock.Any()).Return(
&sv1.StorageClass{}, nil,
),
f.stepperOps.EXPECT().FetchVS(gomock.Any(), gomock.Any()).Return(
&snapv1.VolumeSnapshot{
ObjectMeta: metav1.ObjectMeta{
Name: "snap1",
Namespace: "ns",
},
},
nil,
),
f.stepperOps.EXPECT().CreateInspectorApplication(gomock.Any(), gomock.Any(),
&snapv1.VolumeSnapshot{
ObjectMeta: metav1.ObjectMeta{
Name: "snap1",
Namespace: "ns",
},
}, &sv1.StorageClass{},
).Return(
&v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "pod1",
Namespace: "ns",
},
},
&v1.PersistentVolumeClaim{
ObjectMeta: metav1.ObjectMeta{
Name: "pvc1",
Namespace: "ns",
},
},
nil,
),
f.stepperOps.EXPECT().PortForwardAPod(gomock.Any(),
&v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "pod1",
Namespace: "ns",
},
}, gomock.Any(),
).Return(nil),
f.stepperOps.EXPECT().Cleanup(gomock.Any(),
&v1.PersistentVolumeClaim{
ObjectMeta: metav1.ObjectMeta{
Name: "pvc1",
Namespace: "ns",
},
},
&v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "pod1",
Namespace: "ns",
},
},
),
)
},
errChecker: IsNil,
},
{
// portforward failure
kubeCli: fake.NewSimpleClientset(),
dynCli: fakedynamic.NewSimpleDynamicClient(runtime.NewScheme()),
args: &types.SnapshotBrowseArgs{},
prepare: func(f *fields) {
gomock.InOrder(
f.stepperOps.EXPECT().ValidateArgs(gomock.Any(), gomock.Any()).Return(nil, nil),
f.stepperOps.EXPECT().FetchVS(gomock.Any(), gomock.Any()).Return(nil, nil),
f.stepperOps.EXPECT().CreateInspectorApplication(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(nil, nil, nil),
f.stepperOps.EXPECT().PortForwardAPod(gomock.Any(), gomock.Any(), gomock.Any()).Return(fmt.Errorf("portforward error")),
f.stepperOps.EXPECT().Cleanup(gomock.Any(), gomock.Any(), gomock.Any()),
)
},
errChecker: NotNil,
},
{
// createapp failure
kubeCli: fake.NewSimpleClientset(),
dynCli: fakedynamic.NewSimpleDynamicClient(runtime.NewScheme()),
args: &types.SnapshotBrowseArgs{},
prepare: func(f *fields) {
gomock.InOrder(
f.stepperOps.EXPECT().ValidateArgs(gomock.Any(), gomock.Any()).Return(nil, nil),
f.stepperOps.EXPECT().FetchVS(gomock.Any(), gomock.Any()).Return(nil, nil),
f.stepperOps.EXPECT().CreateInspectorApplication(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).Return(nil, nil, fmt.Errorf("createapp error")),
f.stepperOps.EXPECT().Cleanup(gomock.Any(), gomock.Any(), gomock.Any()),
)
},
errChecker: NotNil,
},
{
// fetch snapshot failure
kubeCli: fake.NewSimpleClientset(),
dynCli: fakedynamic.NewSimpleDynamicClient(runtime.NewScheme()),
args: &types.SnapshotBrowseArgs{},
prepare: func(f *fields) {
gomock.InOrder(
f.stepperOps.EXPECT().ValidateArgs(gomock.Any(), gomock.Any()).Return(nil, nil),
f.stepperOps.EXPECT().FetchVS(gomock.Any(), gomock.Any()).Return(nil, fmt.Errorf("snapshot error")),
f.stepperOps.EXPECT().Cleanup(gomock.Any(), gomock.Any(), gomock.Any()),
)
},
errChecker: NotNil,
},
{
// validate failure
kubeCli: fake.NewSimpleClientset(),
dynCli: fakedynamic.NewSimpleDynamicClient(runtime.NewScheme()),
args: &types.SnapshotBrowseArgs{},
prepare: func(f *fields) {
gomock.InOrder(
f.stepperOps.EXPECT().ValidateArgs(gomock.Any(), gomock.Any()).Return(nil, fmt.Errorf("snapshot error")),
f.stepperOps.EXPECT().Cleanup(gomock.Any(), gomock.Any(), gomock.Any()),
)
},
errChecker: NotNil,
},
{
// emptycli failure
kubeCli: nil,
dynCli: fakedynamic.NewSimpleDynamicClient(runtime.NewScheme()),
args: &types.SnapshotBrowseArgs{},
prepare: func(f *fields) {
gomock.InOrder(
f.stepperOps.EXPECT().Cleanup(gomock.Any(), gomock.Any(), gomock.Any()),
)
},
errChecker: NotNil,
},
{
// emptydyncli failure
kubeCli: fake.NewSimpleClientset(),
dynCli: nil,
args: &types.SnapshotBrowseArgs{},
prepare: func(f *fields) {
gomock.InOrder(
f.stepperOps.EXPECT().Cleanup(gomock.Any(), gomock.Any(), gomock.Any()),
)
},
errChecker: NotNil,
},
} {
ctrl := gomock.NewController(c)
defer ctrl.Finish()
f := fields{
stepperOps: mocks.NewMockSnapshotBrowserStepper(ctrl),
}
if tc.prepare != nil {
tc.prepare(&f)
}
runner := &SnapshotBrowseRunner{
KubeCli: tc.kubeCli,
DynCli: tc.dynCli,
browserSteps: f.stepperOps,
}
err := runner.RunSnapshotBrowseHelper(ctx, tc.args)
c.Check(err, tc.errChecker)
}
}

func (s *CSITestSuite) TestSnapshotBrowseRunner(c *C) {
ctx := context.Background()
r := &SnapshotBrowseRunner{
browserSteps: &snapshotBrowserSteps{},
}
err := r.RunSnapshotBrowseHelper(ctx, nil)
c.Check(err, NotNil)
}

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