kubernetes azure_vmssvmclient_test 源码

2022-09-18
浏览 (302)

kubernetes azure_vmssvmclient_test 代码

文件路径：/staging/src/k8s.io/legacy-cloud-providers/azure/clients/vmssvmclient/azure_vmssvmclient_test.go

//go:build !providerless
// +build !providerless

/*
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 vmssvmclient

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"testing"
	"time"

	"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2019-12-01/compute"
	"github.com/Azure/go-autorest/autorest"
	"github.com/Azure/go-autorest/autorest/to"
	"github.com/golang/mock/gomock"
	"github.com/stretchr/testify/assert"

	"k8s.io/client-go/util/flowcontrol"
	azclients "k8s.io/legacy-cloud-providers/azure/clients"
	"k8s.io/legacy-cloud-providers/azure/clients/armclient"
	"k8s.io/legacy-cloud-providers/azure/clients/armclient/mockarmclient"
	"k8s.io/legacy-cloud-providers/azure/retry"
)

func TestNew(t *testing.T) {
	config := &azclients.ClientConfig{
		SubscriptionID:          "sub",
		ResourceManagerEndpoint: "endpoint",
		Location:                "eastus",
		RateLimitConfig: &azclients.RateLimitConfig{
			CloudProviderRateLimit:            true,
			CloudProviderRateLimitQPS:         0.5,
			CloudProviderRateLimitBucket:      1,
			CloudProviderRateLimitQPSWrite:    0.5,
			CloudProviderRateLimitBucketWrite: 1,
		},
		Backoff: &retry.Backoff{Steps: 1},
	}

	vmssvmClient := New(config)
	assert.Equal(t, "sub", vmssvmClient.subscriptionID)
	assert.NotEmpty(t, vmssvmClient.rateLimiterReader)
	assert.NotEmpty(t, vmssvmClient.rateLimiterWriter)
}

func TestGet(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines/0"
	response := &http.Response{
		StatusCode: http.StatusOK,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(response, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	expected := compute.VirtualMachineScaleSetVM{Response: autorest.Response{Response: response}}
	vmssvmClient := getTestVMSSVMClient(armClient)
	result, rerr := vmssvmClient.Get(context.TODO(), "rg", "vmss1", "0", "InstanceView")
	assert.Equal(t, expected, result)
	assert.Nil(t, rerr)
}

func TestGetNeverRateLimiter(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssvmGetErr := &retry.Error{
		RawError:  fmt.Errorf("azure cloud provider rate limited(%s) for operation %q", "read", "VMSSVMGet"),
		Retriable: true,
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssvmClient := getTestVMSSVMClientWithNeverRateLimiter(armClient)
	expected := compute.VirtualMachineScaleSetVM{}
	result, rerr := vmssvmClient.Get(context.TODO(), "rg", "vmss1", "0", "InstanceView")
	assert.Equal(t, expected, result)
	assert.Equal(t, vmssvmGetErr, rerr)
}

func TestGetRetryAfterReader(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssvmGetErr := &retry.Error{
		RawError:   fmt.Errorf("azure cloud provider throttled for operation %s with reason %q", "VMSSVMGet", "client throttled"),
		Retriable:  true,
		RetryAfter: getFutureTime(),
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssvmClient := getTestVMSSVMClientWithRetryAfterReader(armClient)
	expected := compute.VirtualMachineScaleSetVM{}
	result, rerr := vmssvmClient.Get(context.TODO(), "rg", "vmss1", "0", "InstanceView")
	assert.Equal(t, expected, result)
	assert.Equal(t, vmssvmGetErr, rerr)
}

func TestGetNotFound(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines/0"
	response := &http.Response{
		StatusCode: http.StatusNotFound,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
	}
	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(response, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssClient := getTestVMSSVMClient(armClient)
	expectedVM := compute.VirtualMachineScaleSetVM{Response: autorest.Response{}}
	result, rerr := vmssClient.Get(context.TODO(), "rg", "vmss1", "0", "InstanceView")
	assert.Equal(t, expectedVM, result)
	assert.NotNil(t, rerr)
	assert.Equal(t, http.StatusNotFound, rerr.HTTPStatusCode)
}

func TestGetInternalError(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines/1"
	response := &http.Response{
		StatusCode: http.StatusInternalServerError,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
	}
	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(response, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssClient := getTestVMSSVMClient(armClient)
	expectedVM := compute.VirtualMachineScaleSetVM{Response: autorest.Response{}}
	result, rerr := vmssClient.Get(context.TODO(), "rg", "vmss1", "1", "InstanceView")
	assert.Equal(t, expectedVM, result)
	assert.NotNil(t, rerr)
	assert.Equal(t, http.StatusInternalServerError, rerr.HTTPStatusCode)
}

func TestGetThrottle(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines/0"
	response := &http.Response{
		StatusCode: http.StatusTooManyRequests,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
	}
	throttleErr := &retry.Error{
		HTTPStatusCode: http.StatusTooManyRequests,
		RawError:       fmt.Errorf("error"),
		Retriable:      true,
		RetryAfter:     time.Unix(100, 0),
	}
	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(response, throttleErr).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssvmClient := getTestVMSSVMClient(armClient)
	result, rerr := vmssvmClient.Get(context.TODO(), "rg", "vmss1", "0", "InstanceView")
	assert.Empty(t, result)
	assert.Equal(t, throttleErr, rerr)
}

func TestList(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines"
	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssList := []compute.VirtualMachineScaleSetVM{getTestVMSSVM("vmss1", "1"), getTestVMSSVM("vmss1", "2"), getTestVMSSVM("vmss1", "3")}
	responseBody, err := json.Marshal(compute.VirtualMachineScaleSetVMListResult{Value: &vmssList})
	assert.NoError(t, err)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(
		&http.Response{
			StatusCode: http.StatusOK,
			Body:       ioutil.NopCloser(bytes.NewReader(responseBody)),
		}, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssClient := getTestVMSSVMClient(armClient)
	result, rerr := vmssClient.List(context.TODO(), "rg", "vmss1", "InstanceView")
	assert.Nil(t, rerr)
	assert.Equal(t, 3, len(result))
}

func TestListNotFound(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines"
	response := &http.Response{
		StatusCode: http.StatusNotFound,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
	}
	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(response, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssvmClient := getTestVMSSVMClient(armClient)
	expected := []compute.VirtualMachineScaleSetVM{}
	result, rerr := vmssvmClient.List(context.TODO(), "rg", "vmss1", "InstanceView")
	assert.Equal(t, expected, result)
	assert.NotNil(t, rerr)
	assert.Equal(t, http.StatusNotFound, rerr.HTTPStatusCode)
}

func TestListInternalError(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines"
	response := &http.Response{
		StatusCode: http.StatusInternalServerError,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
	}
	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(response, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssvmClient := getTestVMSSVMClient(armClient)
	expected := []compute.VirtualMachineScaleSetVM{}
	result, rerr := vmssvmClient.List(context.TODO(), "rg", "vmss1", "InstanceView")
	assert.Equal(t, expected, result)
	assert.NotNil(t, rerr)
	assert.Equal(t, http.StatusInternalServerError, rerr.HTTPStatusCode)
}

func TestListThrottle(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines"
	armClient := mockarmclient.NewMockInterface(ctrl)
	response := &http.Response{
		StatusCode: http.StatusTooManyRequests,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
	}
	throttleErr := &retry.Error{
		HTTPStatusCode: http.StatusTooManyRequests,
		RawError:       fmt.Errorf("error"),
		Retriable:      true,
		RetryAfter:     time.Unix(100, 0),
	}
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(response, throttleErr).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)
	vmssvmClient := getTestVMSSVMClient(armClient)
	result, rerr := vmssvmClient.List(context.TODO(), "rg", "vmss1", "InstanceView")
	assert.Empty(t, result)
	assert.NotNil(t, rerr)
	assert.Equal(t, throttleErr, rerr)
}

func TestListWithListResponderError(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines"
	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssvmList := []compute.VirtualMachineScaleSetVM{getTestVMSSVM("vmss1", "1"), getTestVMSSVM("vmss1", "2"), getTestVMSSVM("vmss1", "3")}
	responseBody, err := json.Marshal(compute.VirtualMachineScaleSetVMListResult{Value: &vmssvmList})
	assert.NoError(t, err)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(
		&http.Response{
			StatusCode: http.StatusNotFound,
			Body:       ioutil.NopCloser(bytes.NewReader(responseBody)),
		}, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)
	vmssvmClient := getTestVMSSVMClient(armClient)
	result, rerr := vmssvmClient.List(context.TODO(), "rg", "vmss1", "InstanceView")
	assert.NotNil(t, rerr)
	assert.Equal(t, 0, len(result))
}

func TestListWithNextPage(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	resourceID := "/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1/virtualMachines"
	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssvmList := []compute.VirtualMachineScaleSetVM{getTestVMSSVM("vmss1", "1"), getTestVMSSVM("vmss1", "2"), getTestVMSSVM("vmss1", "3")}
	partialResponse, err := json.Marshal(compute.VirtualMachineScaleSetVMListResult{Value: &vmssvmList, NextLink: to.StringPtr("nextLink")})
	assert.NoError(t, err)
	pagedResponse, err := json.Marshal(compute.VirtualMachineScaleSetVMListResult{Value: &vmssvmList})
	assert.NoError(t, err)
	armClient.EXPECT().PrepareGetRequest(gomock.Any(), gomock.Any()).Return(&http.Request{}, nil)
	armClient.EXPECT().Send(gomock.Any(), gomock.Any()).Return(
		&http.Response{
			StatusCode: http.StatusOK,
			Body:       ioutil.NopCloser(bytes.NewReader(pagedResponse)),
		}, nil)
	armClient.EXPECT().GetResource(gomock.Any(), resourceID, "InstanceView").Return(
		&http.Response{
			StatusCode: http.StatusOK,
			Body:       ioutil.NopCloser(bytes.NewReader(partialResponse)),
		}, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(2)
	vmssvmClient := getTestVMSSVMClient(armClient)
	result, rerr := vmssvmClient.List(context.TODO(), "rg", "vmss1", "InstanceView")
	assert.Nil(t, rerr)
	assert.Equal(t, 6, len(result))
}

func TestListNeverRateLimiter(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssvmListErr := &retry.Error{
		RawError:  fmt.Errorf("azure cloud provider rate limited(%s) for operation %q", "read", "VMSSVMList"),
		Retriable: true,
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssvmClient := getTestVMSSVMClientWithNeverRateLimiter(armClient)
	result, rerr := vmssvmClient.List(context.TODO(), "rg", "vmss1", "InstanceView")
	assert.Equal(t, 0, len(result))
	assert.NotNil(t, rerr)
	assert.Equal(t, vmssvmListErr, rerr)
}

func TestListRetryAfterReader(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssvmListErr := &retry.Error{
		RawError:   fmt.Errorf("azure cloud provider throttled for operation %s with reason %q", "VMSSVMList", "client throttled"),
		Retriable:  true,
		RetryAfter: getFutureTime(),
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssvmClient := getTestVMSSVMClientWithRetryAfterReader(armClient)
	result, rerr := vmssvmClient.List(context.TODO(), "rg", "vmss1", "InstanceView")
	assert.Equal(t, 0, len(result))
	assert.NotNil(t, rerr)
	assert.Equal(t, vmssvmListErr, rerr)
}

func TestListNextResultsMultiPages(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	tests := []struct {
		name           string
		prepareErr     error
		sendErr        *retry.Error
		expectedErrMsg string
	}{
		{
			name:       "testlistNextResultsSuccessful",
			prepareErr: nil,
			sendErr:    nil,
		},
		{
			name:           "testPrepareGetRequestError",
			prepareErr:     fmt.Errorf("error"),
			expectedErrMsg: "Failure preparing next results request",
		},
		{
			name:           "testSendError",
			sendErr:        &retry.Error{RawError: fmt.Errorf("error")},
			expectedErrMsg: "Failure sending next results request",
		},
	}

	lastResult := compute.VirtualMachineScaleSetVMListResult{
		NextLink: to.StringPtr("next"),
	}

	for _, test := range tests {
		armClient := mockarmclient.NewMockInterface(ctrl)
		req := &http.Request{
			Method: "GET",
		}
		armClient.EXPECT().PrepareGetRequest(gomock.Any(), gomock.Any()).Return(req, test.prepareErr)
		if test.prepareErr == nil {
			armClient.EXPECT().Send(gomock.Any(), req).Return(&http.Response{
				StatusCode: http.StatusOK,
				Body:       ioutil.NopCloser(bytes.NewReader([]byte(`{"foo":"bar"}`))),
			}, test.sendErr)
			armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any())
		}

		vmssClient := getTestVMSSVMClient(armClient)
		result, err := vmssClient.listNextResults(context.TODO(), lastResult)
		if err != nil {
			assert.Equal(t, err.(autorest.DetailedError).Message, test.expectedErrMsg)
		} else {
			assert.NoError(t, err)
		}

		if test.prepareErr != nil {
			assert.Empty(t, result)
		} else {
			assert.NotEmpty(t, result)
		}
	}
}

func TestListNextResultsMultiPagesWithListResponderError(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	tests := []struct {
		name       string
		prepareErr error
		sendErr    *retry.Error
	}{
		{
			name:       "testListResponderError",
			prepareErr: nil,
			sendErr:    nil,
		},
		{
			name:    "testSendError",
			sendErr: &retry.Error{RawError: fmt.Errorf("error")},
		},
	}

	lastResult := compute.VirtualMachineScaleSetVMListResult{
		NextLink: to.StringPtr("next"),
	}

	for _, test := range tests {
		armClient := mockarmclient.NewMockInterface(ctrl)
		req := &http.Request{
			Method: "GET",
		}
		armClient.EXPECT().PrepareGetRequest(gomock.Any(), gomock.Any()).Return(req, test.prepareErr)
		if test.prepareErr == nil {
			armClient.EXPECT().Send(gomock.Any(), req).Return(&http.Response{
				StatusCode: http.StatusNotFound,
				Body:       ioutil.NopCloser(bytes.NewReader([]byte(`{"foo":"bar"}`))),
			}, test.sendErr)
			armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any())
		}

		response := &http.Response{
			StatusCode: http.StatusNotFound,
			Body:       ioutil.NopCloser(bytes.NewBuffer([]byte(`{"foo":"bar"}`))),
		}
		expected := compute.VirtualMachineScaleSetVMListResult{}
		expected.Response = autorest.Response{Response: response}
		vmssClient := getTestVMSSVMClient(armClient)
		result, err := vmssClient.listNextResults(context.TODO(), lastResult)
		assert.Error(t, err)
		if test.sendErr != nil {
			assert.NotEqual(t, expected, result)
		} else {
			assert.Equal(t, expected, result)
		}
	}
}

func TestUpdate(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssVM := getTestVMSSVM("vmss1", "0")
	armClient := mockarmclient.NewMockInterface(ctrl)
	response := &http.Response{
		StatusCode: http.StatusOK,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte(""))),
	}
	armClient.EXPECT().PutResource(gomock.Any(), to.String(vmssVM.ID), vmssVM).Return(response, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssClient := getTestVMSSVMClient(armClient)
	rerr := vmssClient.Update(context.TODO(), "rg", "vmss1", "0", vmssVM, "test")
	assert.Nil(t, rerr)
}

func TestUpdateWithUpdateResponderError(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssVM := getTestVMSSVM("vmss1", "0")
	armClient := mockarmclient.NewMockInterface(ctrl)
	response := &http.Response{
		StatusCode: http.StatusNotFound,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte(""))),
	}
	armClient.EXPECT().PutResource(gomock.Any(), to.String(vmssVM.ID), vmssVM).Return(response, nil).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssvmClient := getTestVMSSVMClient(armClient)
	rerr := vmssvmClient.Update(context.TODO(), "rg", "vmss1", "0", vmssVM, "test")
	assert.NotNil(t, rerr)
}

func TestUpdateNeverRateLimiter(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssvmUpdateErr := &retry.Error{
		RawError:  fmt.Errorf("azure cloud provider rate limited(%s) for operation %q", "write", "VMSSVMUpdate"),
		Retriable: true,
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssvmClient := getTestVMSSVMClientWithNeverRateLimiter(armClient)
	vmssVM := getTestVMSSVM("vmss1", "0")
	rerr := vmssvmClient.Update(context.TODO(), "rg", "vmss1", "0", vmssVM, "test")
	assert.NotNil(t, rerr)
	assert.Equal(t, vmssvmUpdateErr, rerr)
}

func TestUpdateRetryAfterReader(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssvmUpdateErr := &retry.Error{
		RawError:   fmt.Errorf("azure cloud provider throttled for operation %s with reason %q", "VMSSVMUpdate", "client throttled"),
		Retriable:  true,
		RetryAfter: getFutureTime(),
	}

	vmssVM := getTestVMSSVM("vmss1", "0")
	armClient := mockarmclient.NewMockInterface(ctrl)
	vmClient := getTestVMSSVMClientWithRetryAfterReader(armClient)
	rerr := vmClient.Update(context.TODO(), "rg", "vmss1", "0", vmssVM, "test")
	assert.NotNil(t, rerr)
	assert.Equal(t, vmssvmUpdateErr, rerr)
}

func TestUpdateThrottle(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	response := &http.Response{
		StatusCode: http.StatusTooManyRequests,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
	}
	throttleErr := &retry.Error{
		HTTPStatusCode: http.StatusTooManyRequests,
		RawError:       fmt.Errorf("error"),
		Retriable:      true,
		RetryAfter:     time.Unix(100, 0),
	}

	vmssVM := getTestVMSSVM("vmss1", "0")
	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().PutResource(gomock.Any(), to.String(vmssVM.ID), vmssVM).Return(response, throttleErr).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssvmClient := getTestVMSSVMClient(armClient)
	rerr := vmssvmClient.Update(context.TODO(), "rg", "vmss1", "0", vmssVM, "test")
	assert.NotNil(t, rerr)
	assert.Equal(t, throttleErr, rerr)
}

func TestUpdateVMs(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssVM1 := getTestVMSSVM("vmss1", "1")
	vmssVM2 := getTestVMSSVM("vmss1", "2")
	instances := map[string]compute.VirtualMachineScaleSetVM{
		"1": vmssVM1,
		"2": vmssVM2,
	}
	testvmssVMs := map[string]interface{}{
		to.String(vmssVM1.ID): vmssVM1,
		to.String(vmssVM2.ID): vmssVM2,
	}
	response := &http.Response{
		StatusCode: http.StatusOK,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte(""))),
	}
	responses := map[string]*armclient.PutResourcesResponse{
		to.String(vmssVM1.ID): {
			Response: response,
		},
		to.String(vmssVM2.ID): {
			Response: response,
		},
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().PutResources(gomock.Any(), testvmssVMs).Return(responses).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(2)

	vmssvmClient := getTestVMSSVMClient(armClient)
	rerr := vmssvmClient.UpdateVMs(context.TODO(), "rg", "vmss1", instances, "test")
	assert.Nil(t, rerr)
}

func TestUpdateVMsWithUpdateVMsResponderError(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssVM := getTestVMSSVM("vmss1", "1")
	instances := map[string]compute.VirtualMachineScaleSetVM{
		"1": vmssVM,
	}
	testvmssVMs := map[string]interface{}{
		to.String(vmssVM.ID): vmssVM,
	}
	response := &http.Response{
		StatusCode: http.StatusNotFound,
		Body:       ioutil.NopCloser(bytes.NewReader([]byte(""))),
	}
	responses := map[string]*armclient.PutResourcesResponse{
		to.String(vmssVM.ID): {
			Response: response,
		},
	}
	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().PutResources(gomock.Any(), testvmssVMs).Return(responses).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssvmClient := getTestVMSSVMClient(armClient)
	rerr := vmssvmClient.UpdateVMs(context.TODO(), "rg", "vmss1", instances, "test")
	assert.NotNil(t, rerr)
}

func TestUpdateVMsNeverRateLimiter(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	instances := map[string]compute.VirtualMachineScaleSetVM{}
	vmssvmUpdateVMsErr := &retry.Error{
		RawError:  fmt.Errorf("azure cloud provider rate limited(%s) for operation %q", "write", "VMSSVMUpdateVMs"),
		Retriable: true,
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	vmssvmClient := getTestVMSSVMClientWithNeverRateLimiter(armClient)
	rerr := vmssvmClient.UpdateVMs(context.TODO(), "rg", "vmss1", instances, "test")
	assert.NotNil(t, rerr)
	assert.Equal(t, vmssvmUpdateVMsErr, rerr)
}

func TestUpdateVMsRetryAfterReader(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	instances := map[string]compute.VirtualMachineScaleSetVM{}
	vmssvmUpdateVMsErr := &retry.Error{
		RawError:   fmt.Errorf("azure cloud provider throttled for operation %s with reason %q", "VMSSVMUpdateVMs", "client throttled"),
		Retriable:  true,
		RetryAfter: getFutureTime(),
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	vmClient := getTestVMSSVMClientWithRetryAfterReader(armClient)
	rerr := vmClient.UpdateVMs(context.TODO(), "rg", "vmss1", instances, "test")
	assert.NotNil(t, rerr)
	assert.Equal(t, vmssvmUpdateVMsErr, rerr)
}

func TestUpdateVMsThrottle(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	vmssVM := getTestVMSSVM("vmss1", "1")
	instances := map[string]compute.VirtualMachineScaleSetVM{
		"1": vmssVM,
	}
	testvmssVMs := map[string]interface{}{
		to.String(vmssVM.ID): vmssVM,
	}
	throttleErr := retry.Error{
		HTTPStatusCode: http.StatusTooManyRequests,
		RawError:       fmt.Errorf("error"),
		Retriable:      true,
		RetryAfter:     time.Unix(100, 0),
	}
	responses := map[string]*armclient.PutResourcesResponse{
		to.String(vmssVM.ID): {
			Response: &http.Response{
				StatusCode: http.StatusTooManyRequests,
				Body:       ioutil.NopCloser(bytes.NewReader([]byte("{}"))),
			},
			Error: &throttleErr,
		},
	}

	armClient := mockarmclient.NewMockInterface(ctrl)
	armClient.EXPECT().PutResources(gomock.Any(), testvmssVMs).Return(responses).Times(1)
	armClient.EXPECT().CloseResponse(gomock.Any(), gomock.Any()).Times(1)

	vmssvmClient := getTestVMSSVMClient(armClient)
	rerr := vmssvmClient.UpdateVMs(context.TODO(), "rg", "vmss1", instances, "test")
	assert.NotNil(t, rerr)
	assert.EqualError(t, throttleErr.Error(), rerr.RawError.Error())
}

func getTestVMSSVM(vmssName, instanceID string) compute.VirtualMachineScaleSetVM {
	resourceID := fmt.Sprintf("/subscriptions/subscriptionID/resourceGroups/rg/providers/Microsoft.Compute/virtualMachineScaleSets/%s/virtualMachines/%s", vmssName, instanceID)
	return compute.VirtualMachineScaleSetVM{
		ID:         to.StringPtr(resourceID),
		InstanceID: to.StringPtr(instanceID),
		Location:   to.StringPtr("eastus"),
	}
}

func getTestVMSSVMClient(armClient armclient.Interface) *Client {
	rateLimiterReader, rateLimiterWriter := azclients.NewRateLimiter(&azclients.RateLimitConfig{})
	return &Client{
		armClient:         armClient,
		subscriptionID:    "subscriptionID",
		rateLimiterReader: rateLimiterReader,
		rateLimiterWriter: rateLimiterWriter,
	}
}

func getTestVMSSVMClientWithNeverRateLimiter(armClient armclient.Interface) *Client {
	rateLimiterReader := flowcontrol.NewFakeNeverRateLimiter()
	rateLimiterWriter := flowcontrol.NewFakeNeverRateLimiter()
	return &Client{
		armClient:         armClient,
		subscriptionID:    "subscriptionID",
		rateLimiterReader: rateLimiterReader,
		rateLimiterWriter: rateLimiterWriter,
	}
}

func getTestVMSSVMClientWithRetryAfterReader(armClient armclient.Interface) *Client {
	rateLimiterReader := flowcontrol.NewFakeAlwaysRateLimiter()
	rateLimiterWriter := flowcontrol.NewFakeAlwaysRateLimiter()
	return &Client{
		armClient:         armClient,
		subscriptionID:    "subscriptionID",
		rateLimiterReader: rateLimiterReader,
		rateLimiterWriter: rateLimiterWriter,
		RetryAfterReader:  getFutureTime(),
		RetryAfterWriter:  getFutureTime(),
	}
}

func getFutureTime() time.Time {
	return time.Unix(3000000000, 0)
}

相关信息

kubernetes 源码目录

相关文章

kubernetes azure_vmssvmclient 源码

kubernetes doc 源码

kubernetes interface 源码

0 赞

所属分类： 后端技术
本文标签： docker golang
版权声明： 原创文章如转载，请注明本文链接: https://www.seaxiang.com/blog/45fdaf3b06a646eea1990a90b783ba39

热门推荐

1、直接访问google.com
2、 - 优质文章
3、 gate.io
4、 harmony 鸿蒙hdc使用指导
5、 harmony 鸿蒙ArkUI组件（ArkTS）开发常见问题
6、 harmony 鸿蒙初识ArkTS语言
7、 golang
8、 flink kafka connector scan.startup.mode 的几个选项
9、 openharmony
10、 Vue中input框自动聚焦

Loading...