services/keepstore/pull_worker_integration_test.go

   1 package main
   2
   3 import (
   4         "bytes"
   5         "errors"
   6         "git.curoverse.com/arvados.git/sdk/go/arvadosclient"
   7         "git.curoverse.com/arvados.git/sdk/go/arvadostest"
   8         "git.curoverse.com/arvados.git/sdk/go/keepclient"
   9         "io"
  10         "net/http"
  11         "os"
  12         "strings"
  13         "testing"
  14 )
  15
  16 var keepClient *keepclient.KeepClient
  17
  18 type PullWorkIntegrationTestData struct {
  19         Name     string
  20         Locator  string
  21         Content  string
  22         GetError string
  23 }
  24
  25 func SetupPullWorkerIntegrationTest(t *testing.T, testData PullWorkIntegrationTestData, wantData bool) PullRequest {
  26         os.Setenv("ARVADOS_API_HOST_INSECURE", "true")
  27
  28         // start api and keep servers
  29         arvadostest.StartAPI()
  30         arvadostest.StartKeep(2, false)
  31
  32         // make arvadosclient
  33         arv, err := arvadosclient.MakeArvadosClient()
  34         if err != nil {
  35                 t.Error("Error creating arv")
  36         }
  37
  38         // keep client
  39         keepClient = &keepclient.KeepClient{
  40                 Arvados:       &arv,
  41                 Want_replicas: 1,
  42                 Using_proxy:   true,
  43                 Client:        &http.Client{},
  44         }
  45
  46         // discover keep services
  47         var servers []string
  48         if err := keepClient.DiscoverKeepServers(); err != nil {
  49                 t.Error("Error discovering keep services")
  50         }
  51         for _, host := range keepClient.LocalRoots() {
  52                 servers = append(servers, host)
  53         }
  54
  55         // Put content if the test needs it
  56         if wantData {
  57                 locator, _, err := keepClient.PutB([]byte(testData.Content))
  58                 if err != nil {
  59                         t.Errorf("Error putting test data in setup for %s %s %v", testData.Content, locator, err)
  60                 }
  61                 if locator == "" {
  62                         t.Errorf("No locator found after putting test data")
  63                 }
  64         }
  65
  66         // Create pullRequest for the test
  67         pullRequest := PullRequest{
  68                 Locator: testData.Locator,
  69                 Servers: servers,
  70         }
  71         return pullRequest
  72 }
  73
  74 // Do a get on a block that is not existing in any of the keep servers.
  75 // Expect "block not found" error.
  76 func TestPullWorkerIntegration_GetNonExistingLocator(t *testing.T) {
  77         testData := PullWorkIntegrationTestData{
  78                 Name:     "TestPullWorkerIntegration_GetLocator",
  79                 Locator:  "5d41402abc4b2a76b9719d911017c592",
  80                 Content:  "hello",
  81                 GetError: "Block not found",
  82         }
  83
  84         pullRequest := SetupPullWorkerIntegrationTest(t, testData, false)
  85
  86         performPullWorkerIntegrationTest(testData, pullRequest, t)
  87 }
  88
  89 // Do a get on a block that exists on one of the keep servers.
  90 // The setup method will create this block before doing the get.
  91 func TestPullWorkerIntegration_GetExistingLocator(t *testing.T) {
  92         testData := PullWorkIntegrationTestData{
  93                 Name:     "TestPullWorkerIntegration_GetLocator",
  94                 Locator:  "5d41402abc4b2a76b9719d911017c592",
  95                 Content:  "hello",
  96                 GetError: "",
  97         }
  98
  99         pullRequest := SetupPullWorkerIntegrationTest(t, testData, true)
 100
 101         performPullWorkerIntegrationTest(testData, pullRequest, t)
 102 }
 103
 104 // Perform the test.
 105 // The test directly invokes the "PullItemAndProcess" rather than
 106 // putting an item on the pullq so that the errors can be verified.
 107 func performPullWorkerIntegrationTest(testData PullWorkIntegrationTestData, pullRequest PullRequest, t *testing.T) {
 108
 109         // Override PutContent to mock PutBlock functionality
 110         defer func(orig func([]byte, string) error) { PutContent = orig }(PutContent)
 111         PutContent = func(content []byte, locator string) (err error) {
 112                 if string(content) != testData.Content {
 113                         t.Errorf("PutContent invoked with unexpected data. Expected: %s; Found: %s", testData.Content, content)
 114                 }
 115                 return
 116         }
 117
 118         // Override GetContent to mock keepclient Get functionality
 119         defer func(orig func(string, *keepclient.KeepClient) (io.ReadCloser, int64, string, error)) {
 120                 GetContent = orig
 121         }(GetContent)
 122         GetContent = func(signedLocator string, keepClient *keepclient.KeepClient) (
 123                 reader io.ReadCloser, contentLength int64, url string, err error) {
 124                 if testData.GetError != "" {
 125                         return nil, 0, "", errors.New(testData.GetError)
 126                 }
 127                 rdr := &ClosingBuffer{bytes.NewBufferString(testData.Content)}
 128                 return rdr, int64(len(testData.Content)), "", nil
 129         }
 130
 131         keepClient.Arvados.ApiToken = GenerateRandomAPIToken()
 132         err := PullItemAndProcess(pullRequest, keepClient.Arvados.ApiToken, keepClient)
 133
 134         if len(testData.GetError) > 0 {
 135                 if (err == nil) || (!strings.Contains(err.Error(), testData.GetError)) {
 136                         t.Errorf("Got error %v, expected %v", err, testData.GetError)
 137                 }
 138         } else {
 139                 if err != nil {
 140                         t.Errorf("Got error %v, expected nil", err)
 141                 }
 142         }
 143 }