add UT for connection.go
This commit is contained in:
wackxu
@@ -1 +1,772 @@
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/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package connection
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import (
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"context"
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"fmt"
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"reflect"
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"testing"
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"time"
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"github.com/container-storage-interface/spec/lib/go/csi/v0"
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"github.com/golang/mock/gomock"
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"github.com/kubernetes-csi/csi-test/driver"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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)
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const (
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driverName = "foo/bar"
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)
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func createMockServer(t *testing.T) (*gomock.Controller, *driver.MockCSIDriver, *driver.MockIdentityServer, *driver.MockControllerServer, CSIConnection, error) {
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// Start the mock server
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mockController := gomock.NewController(t)
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identityServer := driver.NewMockIdentityServer(mockController)
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controllerServer := driver.NewMockControllerServer(mockController)
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drv := driver.NewMockCSIDriver(&driver.MockCSIDriverServers{
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Identity: identityServer,
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Controller: controllerServer,
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})
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drv.Start()
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// Create a client connection to it
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addr := drv.Address()
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csiConn, err := New(addr, 10)
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if err != nil {
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return nil, nil, nil, nil, nil, err
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}
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return mockController, drv, identityServer, controllerServer, csiConn, nil
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}
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func TestGetPluginInfo(t *testing.T) {
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tests := []struct {
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name string
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output *csi.GetPluginInfoResponse
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injectError bool
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expectError bool
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}{
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{
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name: "success",
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output: &csi.GetPluginInfoResponse{
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Name: "csi/example",
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VendorVersion: "0.3.0",
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Manifest: map[string]string{
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"hello": "world",
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},
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},
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expectError: false,
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},
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{
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name: "gRPC error",
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output: nil,
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injectError: true,
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expectError: true,
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},
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{
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name: "empty name",
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output: &csi.GetPluginInfoResponse{
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Name: "",
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},
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expectError: true,
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},
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}
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mockController, driver, identityServer, _, csiConn, err := createMockServer(t)
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if err != nil {
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t.Fatal(err)
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}
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defer mockController.Finish()
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defer driver.Stop()
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defer csiConn.Close()
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for _, test := range tests {
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in := &csi.GetPluginInfoRequest{}
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out := test.output
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var injectedErr error = nil
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if test.injectError {
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injectedErr = fmt.Errorf("mock error")
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}
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// Setup expectation
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identityServer.EXPECT().GetPluginInfo(gomock.Any(), in).Return(out, injectedErr).Times(1)
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name, err := csiConn.GetDriverName(context.Background())
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if test.expectError && err == nil {
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t.Errorf("test %q: Expected error, got none", test.name)
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}
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if !test.expectError && err != nil {
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t.Errorf("test %q: got error: %v", test.name, err)
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}
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if err == nil && name != "csi/example" {
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t.Errorf("got unexpected name: %q", name)
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}
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}
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}
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func TestSupportsControllerCreateSnapshot(t *testing.T) {
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tests := []struct {
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name string
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output *csi.ControllerGetCapabilitiesResponse
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injectError bool
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expectError bool
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}{
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{
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name: "success",
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output: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{
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{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
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},
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},
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},
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{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_SNAPSHOT,
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},
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},
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},
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},
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},
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expectError: false,
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},
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{
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name: "gRPC error",
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output: nil,
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injectError: true,
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expectError: true,
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},
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{
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name: "no create snapshot",
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output: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{
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{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
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},
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},
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},
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},
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},
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expectError: false,
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},
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{
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name: "empty capability",
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output: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{
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{
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Type: nil,
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},
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},
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},
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expectError: false,
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},
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{
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name: "no capabilities",
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output: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{},
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},
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expectError: false,
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},
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}
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mockController, driver, _, controllerServer, csiConn, err := createMockServer(t)
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if err != nil {
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t.Fatal(err)
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}
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defer mockController.Finish()
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defer driver.Stop()
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defer csiConn.Close()
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for _, test := range tests {
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in := &csi.ControllerGetCapabilitiesRequest{}
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out := test.output
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var injectedErr error = nil
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if test.injectError {
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injectedErr = fmt.Errorf("mock error")
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}
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// Setup expectation
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controllerServer.EXPECT().ControllerGetCapabilities(gomock.Any(), in).Return(out, injectedErr).Times(1)
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_, err = csiConn.SupportsControllerCreateSnapshot(context.Background())
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if test.expectError && err == nil {
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t.Errorf("test %q: Expected error, got none", test.name)
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}
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if !test.expectError && err != nil {
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t.Errorf("test %q: got error: %v", test.name, err)
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}
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}
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}
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func TestSupportsControllerListSnapshots(t *testing.T) {
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tests := []struct {
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name string
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output *csi.ControllerGetCapabilitiesResponse
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injectError bool
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expectError bool
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}{
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{
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name: "success",
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output: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{
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{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
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},
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},
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},
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{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_SNAPSHOT,
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},
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},
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},
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{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: csi.ControllerServiceCapability_RPC_LIST_SNAPSHOTS,
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},
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},
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},
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},
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},
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expectError: false,
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},
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{
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name: "gRPC error",
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output: nil,
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injectError: true,
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expectError: true,
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},
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{
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name: "no list snapshot",
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output: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{
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{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
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},
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},
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},
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},
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},
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expectError: false,
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},
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{
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name: "empty capability",
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output: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{
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{
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Type: nil,
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},
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},
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},
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expectError: false,
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},
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{
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name: "no capabilities",
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output: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{},
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},
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expectError: false,
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},
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}
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mockController, driver, _, controllerServer, csiConn, err := createMockServer(t)
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if err != nil {
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t.Fatal(err)
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}
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defer mockController.Finish()
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defer driver.Stop()
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defer csiConn.Close()
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for _, test := range tests {
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in := &csi.ControllerGetCapabilitiesRequest{}
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out := test.output
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var injectedErr error = nil
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if test.injectError {
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injectedErr = fmt.Errorf("mock error")
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}
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// Setup expectation
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controllerServer.EXPECT().ControllerGetCapabilities(gomock.Any(), in).Return(out, injectedErr).Times(1)
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_, err = csiConn.SupportsControllerListSnapshots(context.Background())
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if test.expectError && err == nil {
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t.Errorf("test %q: Expected error, got none", test.name)
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}
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if !test.expectError && err != nil {
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t.Errorf("test %q: got error: %v", test.name, err)
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}
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}
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}
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func TestCreateSnapshot(t *testing.T) {
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defaultName := "snapshot-test"
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defaultID := "testid"
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createTime := time.Now().UnixNano()
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createSecrets := map[string]string{"foo": "bar"}
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defaultParameter := map[string]string{
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"param1": "value1",
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"param2": "value2",
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}
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csiVolume := FakeCSIVolume()
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volumeWithoutCSI := FakeVolume()
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defaultRequest := &csi.CreateSnapshotRequest{
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Name: defaultName,
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SourceVolumeId: csiVolume.Spec.CSI.VolumeHandle,
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}
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attributesRequest := &csi.CreateSnapshotRequest{
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Name: defaultName,
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Parameters: defaultParameter,
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SourceVolumeId: csiVolume.Spec.CSI.VolumeHandle,
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}
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secretsRequest := &csi.CreateSnapshotRequest{
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Name: defaultName,
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SourceVolumeId: csiVolume.Spec.CSI.VolumeHandle,
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CreateSnapshotSecrets: createSecrets,
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}
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defaultResponse := &csi.CreateSnapshotResponse{
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Snapshot: &csi.Snapshot{
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Id: defaultID,
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SizeBytes: 1000,
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SourceVolumeId: csiVolume.Spec.CSI.VolumeHandle,
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CreatedAt: createTime,
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Status: &csi.SnapshotStatus{
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Type: csi.SnapshotStatus_READY,
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Details: "success",
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},
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},
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}
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pluginInfoOutput := &csi.GetPluginInfoResponse{
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Name: driverName,
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VendorVersion: "0.3.0",
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Manifest: map[string]string{
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"hello": "world",
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},
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}
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type snapshotResult struct {
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driverName string
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snapshotId string
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timestamp int64
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size int64
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status *csi.SnapshotStatus
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}
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result := &snapshotResult{
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size: 1000,
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driverName: driverName,
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snapshotId: defaultID,
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timestamp: createTime,
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status: &csi.SnapshotStatus{
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Type: csi.SnapshotStatus_READY,
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Details: "success",
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},
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}
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tests := []struct {
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name string
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snapshotName string
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volume *v1.PersistentVolume
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parameters map[string]string
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secrets map[string]string
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input *csi.CreateSnapshotRequest
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output *csi.CreateSnapshotResponse
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injectError codes.Code
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expectError bool
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expectResult *snapshotResult
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}{
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{
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name: "success",
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snapshotName: defaultName,
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volume: csiVolume,
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input: defaultRequest,
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output: defaultResponse,
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expectError: false,
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expectResult: result,
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},
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{
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name: "attributes",
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snapshotName: defaultName,
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volume: csiVolume,
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parameters: defaultParameter,
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input: attributesRequest,
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output: defaultResponse,
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expectError: false,
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expectResult: result,
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},
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{
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name: "secrets",
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snapshotName: defaultName,
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volume: csiVolume,
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secrets: createSecrets,
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input: secretsRequest,
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output: defaultResponse,
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expectError: false,
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expectResult: result,
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},
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{
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name: "fail for volume without csi source",
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snapshotName: defaultName,
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volume: volumeWithoutCSI,
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input: nil,
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output: nil,
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expectError: true,
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},
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{
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name: "gRPC transient error",
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snapshotName: defaultName,
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volume: csiVolume,
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input: defaultRequest,
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output: nil,
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injectError: codes.DeadlineExceeded,
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expectError: true,
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},
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{
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name: "gRPC final error",
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snapshotName: defaultName,
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volume: csiVolume,
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input: defaultRequest,
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output: nil,
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injectError: codes.NotFound,
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expectError: true,
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},
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}
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mockController, driver, identityServer, controllerServer, csiConn, err := createMockServer(t)
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if err != nil {
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t.Fatal(err)
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}
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defer mockController.Finish()
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defer driver.Stop()
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defer csiConn.Close()
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for _, test := range tests {
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in := test.input
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out := test.output
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var injectedErr error = nil
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if test.injectError != codes.OK {
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injectedErr = status.Error(test.injectError, fmt.Sprintf("Injecting error %d", test.injectError))
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}
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// Setup expectation
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if in != nil {
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identityServer.EXPECT().GetPluginInfo(gomock.Any(), gomock.Any()).Return(pluginInfoOutput, nil).Times(1)
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controllerServer.EXPECT().CreateSnapshot(gomock.Any(), in).Return(out, injectedErr).Times(1)
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}
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driverName, snapshotId, timestamp, size, status, err := csiConn.CreateSnapshot(context.Background(), test.snapshotName, test.volume, test.parameters, test.secrets)
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if test.expectError && err == nil {
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t.Errorf("test %q: Expected error, got none", test.name)
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}
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if !test.expectError && err != nil {
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t.Errorf("test %q: got error: %v", test.name, err)
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}
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if test.expectResult != nil {
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if driverName != test.expectResult.driverName {
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t.Errorf("test %q: expected driverName: %q, got: %q", test.name, test.expectResult.driverName, driverName)
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}
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if snapshotId != test.expectResult.snapshotId {
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t.Errorf("test %q: expected snapshotId: %v, got: %v", test.name, test.expectResult.snapshotId, snapshotId)
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}
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if timestamp != test.expectResult.timestamp {
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t.Errorf("test %q: expected create time: %v, got: %v", test.name, test.expectResult.timestamp, timestamp)
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}
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if size != test.expectResult.size {
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t.Errorf("test %q: expected size: %v, got: %v", test.name, test.expectResult.size, size)
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}
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if !reflect.DeepEqual(status, test.expectResult.status) {
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t.Errorf("test %q: expected status: %v, got: %v", test.name, test.expectResult.status, status)
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}
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||||
}
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||||
}
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||||
}
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func TestDeleteSnapshot(t *testing.T) {
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defaultID := "testid"
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secrets := map[string]string{"foo": "bar"}
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||||
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defaultRequest := &csi.DeleteSnapshotRequest{
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SnapshotId: defaultID,
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}
|
||||
|
||||
secretsRequest := &csi.DeleteSnapshotRequest{
|
||||
SnapshotId: defaultID,
|
||||
DeleteSnapshotSecrets: secrets,
|
||||
}
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
snapshotID string
|
||||
secrets map[string]string
|
||||
input *csi.DeleteSnapshotRequest
|
||||
output *csi.DeleteSnapshotResponse
|
||||
injectError codes.Code
|
||||
expectError bool
|
||||
}{
|
||||
{
|
||||
name: "success",
|
||||
snapshotID: defaultID,
|
||||
input: defaultRequest,
|
||||
output: &csi.DeleteSnapshotResponse{},
|
||||
expectError: false,
|
||||
},
|
||||
{
|
||||
name: "secrets",
|
||||
snapshotID: defaultID,
|
||||
secrets: secrets,
|
||||
input: secretsRequest,
|
||||
output: &csi.DeleteSnapshotResponse{},
|
||||
expectError: false,
|
||||
},
|
||||
{
|
||||
name: "gRPC transient error",
|
||||
snapshotID: defaultID,
|
||||
input: defaultRequest,
|
||||
output: nil,
|
||||
injectError: codes.DeadlineExceeded,
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "gRPC final error",
|
||||
snapshotID: defaultID,
|
||||
input: defaultRequest,
|
||||
output: nil,
|
||||
injectError: codes.NotFound,
|
||||
expectError: true,
|
||||
},
|
||||
}
|
||||
|
||||
mockController, driver, _, controllerServer, csiConn, err := createMockServer(t)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
defer mockController.Finish()
|
||||
defer driver.Stop()
|
||||
defer csiConn.Close()
|
||||
|
||||
for _, test := range tests {
|
||||
in := test.input
|
||||
out := test.output
|
||||
var injectedErr error = nil
|
||||
if test.injectError != codes.OK {
|
||||
injectedErr = status.Error(test.injectError, fmt.Sprintf("Injecting error %d", test.injectError))
|
||||
}
|
||||
|
||||
// Setup expectation
|
||||
if in != nil {
|
||||
controllerServer.EXPECT().DeleteSnapshot(gomock.Any(), in).Return(out, injectedErr).Times(1)
|
||||
}
|
||||
|
||||
err := csiConn.DeleteSnapshot(context.Background(), test.snapshotID, test.secrets)
|
||||
if test.expectError && err == nil {
|
||||
t.Errorf("test %q: Expected error, got none", test.name)
|
||||
}
|
||||
if !test.expectError && err != nil {
|
||||
t.Errorf("test %q: got error: %v", test.name, err)
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestGetSnapshotStatus(t *testing.T) {
|
||||
defaultID := "testid"
|
||||
createdAt := time.Now().UnixNano()
|
||||
|
||||
defaultRequest := &csi.ListSnapshotsRequest{
|
||||
SnapshotId: defaultID,
|
||||
}
|
||||
|
||||
defaultResponse := &csi.ListSnapshotsResponse{
|
||||
Entries: []*csi.ListSnapshotsResponse_Entry{
|
||||
{
|
||||
Snapshot: &csi.Snapshot{
|
||||
Id: defaultID,
|
||||
SizeBytes: 1000,
|
||||
SourceVolumeId: "volumeid",
|
||||
CreatedAt: createdAt,
|
||||
Status: &csi.SnapshotStatus{
|
||||
Type: csi.SnapshotStatus_READY,
|
||||
Details: "success",
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
snapshotID string
|
||||
input *csi.ListSnapshotsRequest
|
||||
output *csi.ListSnapshotsResponse
|
||||
injectError codes.Code
|
||||
expectError bool
|
||||
expectStatus *csi.SnapshotStatus
|
||||
expectCreateAt int64
|
||||
}{
|
||||
{
|
||||
name: "success",
|
||||
snapshotID: defaultID,
|
||||
input: defaultRequest,
|
||||
output: defaultResponse,
|
||||
expectError: false,
|
||||
expectStatus: &csi.SnapshotStatus{
|
||||
Type: csi.SnapshotStatus_READY,
|
||||
Details: "success",
|
||||
},
|
||||
expectCreateAt: createdAt,
|
||||
},
|
||||
{
|
||||
name: "gRPC transient error",
|
||||
snapshotID: defaultID,
|
||||
input: defaultRequest,
|
||||
output: nil,
|
||||
injectError: codes.DeadlineExceeded,
|
||||
expectError: true,
|
||||
},
|
||||
{
|
||||
name: "gRPC final error",
|
||||
snapshotID: defaultID,
|
||||
input: defaultRequest,
|
||||
output: nil,
|
||||
injectError: codes.NotFound,
|
||||
expectError: true,
|
||||
},
|
||||
}
|
||||
|
||||
mockController, driver, _, controllerServer, csiConn, err := createMockServer(t)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
defer mockController.Finish()
|
||||
defer driver.Stop()
|
||||
defer csiConn.Close()
|
||||
|
||||
for _, test := range tests {
|
||||
in := test.input
|
||||
out := test.output
|
||||
var injectedErr error = nil
|
||||
if test.injectError != codes.OK {
|
||||
injectedErr = status.Error(test.injectError, fmt.Sprintf("Injecting error %d", test.injectError))
|
||||
}
|
||||
|
||||
// Setup expectation
|
||||
if in != nil {
|
||||
controllerServer.EXPECT().ListSnapshots(gomock.Any(), in).Return(out, injectedErr).Times(1)
|
||||
}
|
||||
|
||||
status, createTime, err := csiConn.GetSnapshotStatus(context.Background(), test.snapshotID)
|
||||
if test.expectError && err == nil {
|
||||
t.Errorf("test %q: Expected error, got none", test.name)
|
||||
}
|
||||
if !test.expectError && err != nil {
|
||||
t.Errorf("test %q: got error: %v", test.name, err)
|
||||
}
|
||||
if test.expectStatus != nil && !reflect.DeepEqual(test.expectStatus, status) {
|
||||
t.Errorf("test %q: expected status: %v, got: %v", test.name, test.expectStatus, status)
|
||||
}
|
||||
if test.expectCreateAt != createTime {
|
||||
t.Errorf("test %q: expected createTime: %v, got: %v", test.name, test.expectCreateAt, createTime)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func FakeCSIVolume() *v1.PersistentVolume {
|
||||
volume := v1.PersistentVolume{
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
Name: "fake-csi-volume",
|
||||
},
|
||||
Spec: v1.PersistentVolumeSpec{
|
||||
ClaimRef: &v1.ObjectReference{
|
||||
Kind: "PersistentVolumeClaim",
|
||||
APIVersion: "v1",
|
||||
UID: types.UID("uid123"),
|
||||
Namespace: "default",
|
||||
Name: "test-claim",
|
||||
},
|
||||
PersistentVolumeSource: v1.PersistentVolumeSource{
|
||||
CSI: &v1.CSIPersistentVolumeSource{
|
||||
Driver: driverName,
|
||||
VolumeHandle: "foo",
|
||||
},
|
||||
},
|
||||
StorageClassName: "default",
|
||||
},
|
||||
Status: v1.PersistentVolumeStatus{
|
||||
Phase: v1.VolumeBound,
|
||||
},
|
||||
}
|
||||
|
||||
return &volume
|
||||
}
|
||||
|
||||
func FakeVolume() *v1.PersistentVolume {
|
||||
volume := v1.PersistentVolume{
|
||||
ObjectMeta: metav1.ObjectMeta{
|
||||
Name: "fake-csi-volume",
|
||||
},
|
||||
Spec: v1.PersistentVolumeSpec{
|
||||
ClaimRef: &v1.ObjectReference{
|
||||
Kind: "PersistentVolumeClaim",
|
||||
APIVersion: "v1",
|
||||
UID: types.UID("uid123"),
|
||||
Namespace: "default",
|
||||
Name: "test-claim",
|
||||
},
|
||||
PersistentVolumeSource: v1.PersistentVolumeSource{
|
||||
GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{},
|
||||
},
|
||||
StorageClassName: "default",
|
||||
},
|
||||
Status: v1.PersistentVolumeStatus{
|
||||
Phase: v1.VolumeBound,
|
||||
},
|
||||
}
|
||||
|
||||
return &volume
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user