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move snapshotter implementation to its own package pkg/snapshotter
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| /* | ||
| Copyright 2019 The Kubernetes Authors. | ||
| 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 main | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "testing" | ||
|
|
||
| "github.com/container-storage-interface/spec/lib/go/csi" | ||
| "github.com/golang/mock/gomock" | ||
| "github.com/kubernetes-csi/csi-lib-utils/connection" | ||
| "github.com/kubernetes-csi/csi-test/driver" | ||
|
|
||
| "google.golang.org/grpc" | ||
| ) | ||
|
|
||
| func Test_supportsControllerCreateSnapshot(t *testing.T) { | ||
| tests := []struct { | ||
| name string | ||
| output *csi.ControllerGetCapabilitiesResponse | ||
| injectError bool | ||
| expectError bool | ||
| expectResult bool | ||
| }{ | ||
| { | ||
| name: "success", | ||
| output: &csi.ControllerGetCapabilitiesResponse{ | ||
| Capabilities: []*csi.ControllerServiceCapability{ | ||
| { | ||
| Type: &csi.ControllerServiceCapability_Rpc{ | ||
| Rpc: &csi.ControllerServiceCapability_RPC{ | ||
| Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME, | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Type: &csi.ControllerServiceCapability_Rpc{ | ||
| Rpc: &csi.ControllerServiceCapability_RPC{ | ||
| Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_SNAPSHOT, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| expectError: false, | ||
| expectResult: true, | ||
| }, | ||
| { | ||
| name: "gRPC error", | ||
| output: nil, | ||
| injectError: true, | ||
| expectError: true, | ||
| expectResult: false, | ||
| }, | ||
| { | ||
| name: "no create snapshot", | ||
| output: &csi.ControllerGetCapabilitiesResponse{ | ||
| Capabilities: []*csi.ControllerServiceCapability{ | ||
| { | ||
| Type: &csi.ControllerServiceCapability_Rpc{ | ||
| Rpc: &csi.ControllerServiceCapability_RPC{ | ||
| Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| expectError: false, | ||
| expectResult: false, | ||
| }, | ||
| { | ||
| name: "empty capability", | ||
| output: &csi.ControllerGetCapabilitiesResponse{ | ||
| Capabilities: []*csi.ControllerServiceCapability{ | ||
| { | ||
| Type: nil, | ||
| }, | ||
| }, | ||
| }, | ||
| expectError: false, | ||
| expectResult: false, | ||
| }, | ||
| { | ||
| name: "no capabilities", | ||
| output: &csi.ControllerGetCapabilitiesResponse{ | ||
| Capabilities: []*csi.ControllerServiceCapability{}, | ||
| }, | ||
| expectError: false, | ||
| expectResult: false, | ||
| }, | ||
| } | ||
|
|
||
| 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 := &csi.ControllerGetCapabilitiesRequest{} | ||
|
|
||
| out := test.output | ||
| var injectedErr error | ||
| if test.injectError { | ||
| injectedErr = fmt.Errorf("mock error") | ||
| } | ||
|
|
||
| // Setup expectation | ||
| controllerServer.EXPECT().ControllerGetCapabilities(gomock.Any(), in).Return(out, injectedErr).Times(1) | ||
|
|
||
| ok, err := supportsControllerCreateSnapshot(context.Background(), csiConn) | ||
| 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 err == nil && test.expectResult != ok { | ||
| t.Errorf("test fail expected result %t but got %t\n", test.expectResult, ok) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func createMockServer(t *testing.T) (*gomock.Controller, *driver.MockCSIDriver, *driver.MockIdentityServer, *driver.MockControllerServer, *grpc.ClientConn, error) { | ||
| // Start the mock server | ||
| mockController := gomock.NewController(t) | ||
| identityServer := driver.NewMockIdentityServer(mockController) | ||
| controllerServer := driver.NewMockControllerServer(mockController) | ||
| drv := driver.NewMockCSIDriver(&driver.MockCSIDriverServers{ | ||
| Identity: identityServer, | ||
| Controller: controllerServer, | ||
| }) | ||
| drv.Start() | ||
|
|
||
| // Create a client connection to it | ||
| addr := drv.Address() | ||
| csiConn, err := connection.Connect(addr) | ||
| if err != nil { | ||
| return nil, nil, nil, nil, nil, err | ||
| } | ||
|
|
||
| return mockController, drv, identityServer, controllerServer, csiConn, nil | ||
| } |
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