21621: Add unit test for json copy to clipboard
[arvados.git] / services / keepstore / pull_worker_test.go
index 8e6241ff8213b6d7ab3768c2f5106378d4ce8c73..d109b56df3cee8e2ac3259ebb784fe4cfdacc20b 100644 (file)
-package main
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
+package keepstore
 
 import (
        "bytes"
+       "context"
+       "crypto/md5"
+       "encoding/json"
        "errors"
+       "fmt"
        "io"
        "net/http"
-       "testing"
+       "net/http/httptest"
+       "sort"
        "time"
+
+       "git.arvados.org/arvados.git/sdk/go/arvados"
+       "git.arvados.org/arvados.git/sdk/go/arvadostest"
+       "github.com/sirupsen/logrus"
+       . "gopkg.in/check.v1"
 )
 
-func TestPullWorker(t *testing.T) {
-       defer teardown()
+func (s *routerSuite) TestPullList_Execute(c *C) {
+       remotecluster := testCluster(c)
+       remotecluster.Volumes = map[string]arvados.Volume{
+               "zzzzz-nyw5e-rrrrrrrrrrrrrrr": {Replication: 1, Driver: "stub"},
+       }
+       remoterouter, cancel := testRouter(c, remotecluster, nil)
+       defer cancel()
+       remoteserver := httptest.NewServer(remoterouter)
+       defer remoteserver.Close()
 
-       // Since keepstore does not come into picture in tests,
-       // we need to explicitly start the goroutine in tests.
-       go RunPullWorker(pullq.NextItem)
+       router, cancel := testRouter(c, s.cluster, nil)
+       defer cancel()
 
-       data_manager_token = "DATA MANAGER TOKEN"
+       executePullList := func(pullList []PullListItem) string {
+               var logbuf bytes.Buffer
+               logger := logrus.New()
+               logger.Out = &logbuf
+               router.keepstore.logger = logger
 
-       first_pull_list := []byte(`[
-               {
-                       "locator":"locator1_to_verify_first_pull_list",
-                       "servers":[
-                               "server_1",
-                               "server_2"
-                       ]
-               },
-    {
-                       "locator":"locator2_to_verify_first_pull_list",
-                       "servers":[
-                               "server_3"
-                       ]
+               listjson, err := json.Marshal(pullList)
+               c.Assert(err, IsNil)
+               resp := call(router, "PUT", "http://example/pull", s.cluster.SystemRootToken, listjson, nil)
+               c.Check(resp.Code, Equals, http.StatusOK)
+               for {
+                       router.puller.cond.L.Lock()
+                       todolen := len(router.puller.todo)
+                       router.puller.cond.L.Unlock()
+                       if todolen == 0 && router.puller.inprogress.Load() == 0 {
+                               break
+                       }
+                       time.Sleep(time.Millisecond)
                }
-       ]`)
+               return logbuf.String()
+       }
 
-       second_pull_list := []byte(`[
-               {
-                       "locator":"locator_to_verify_second_pull_list",
-                       "servers":[
-                               "server_1",
-        "server_2"
-                       ]
-               }
-       ]`)
-
-       type PullWorkerTestData struct {
-               name          string
-               req           RequestTester
-               response_code int
-               response_body string
-               read_content  string
-               read_error    bool
-               put_error     bool
+       newRemoteBlock := func(datastring string) string {
+               data := []byte(datastring)
+               hash := fmt.Sprintf("%x", md5.Sum(data))
+               locator := fmt.Sprintf("%s+%d", hash, len(data))
+               _, err := remoterouter.keepstore.BlockWrite(context.Background(), arvados.BlockWriteOptions{
+                       Hash: hash,
+                       Data: data,
+               })
+               c.Assert(err, IsNil)
+               return locator
        }
-       var testcases = []PullWorkerTestData{
-               {
-                       "Pull request 1 from the data manager in worker",
-                       RequestTester{"/pull", data_manager_token, "PUT", first_pull_list},
-                       http.StatusOK,
-                       "Received 2 pull requests\n",
-                       "hello",
-                       false,
-                       false,
-               },
-               {
-                       "Pull request 2 from the data manager in worker",
-                       RequestTester{"/pull", data_manager_token, "PUT", second_pull_list},
-                       http.StatusOK,
-                       "Received 1 pull requests\n",
-                       "hola",
-                       false,
-                       false,
-               },
-               {
-                       "Pull request with error on get",
-                       RequestTester{"/pull", data_manager_token, "PUT", second_pull_list},
-                       http.StatusOK,
-                       "Received 1 pull requests\n",
-                       "unused",
-                       true,
-                       false,
-               },
-               {
-                       "Pull request with error on put",
-                       RequestTester{"/pull", data_manager_token, "PUT", second_pull_list},
-                       http.StatusOK,
-                       "Received 1 pull requests\n",
-                       "unused",
-                       false,
-                       true,
-               },
+
+       mounts := append([]*mount(nil), router.keepstore.mountsR...)
+       sort.Slice(mounts, func(i, j int) bool { return mounts[i].UUID < mounts[j].UUID })
+       var vols []*stubVolume
+       for _, mount := range mounts {
+               vols = append(vols, mount.volume.(*stubVolume))
        }
 
-       for _, testData := range testcases {
-               // Override GetContent to mock keepclient functionality
-               GetContent = func(signedLocator string) (reader io.ReadCloser, contentLength int64, url string, err error) {
-                       if testData.read_error {
-                               return nil, 0, "", errors.New("Error getting data")
-                       } else {
-                               cb := &ClosingBuffer{bytes.NewBufferString("Hi!")}
-                               var rc io.ReadCloser
-                               rc = cb
-                               return rc, 3, "", nil
-                       }
-               }
+       ctx := authContext(arvadostest.ActiveTokenV2)
 
-               // Override PutContent to mock PutBlock functionality
-               PutContent = func(content []byte, locator string) (err error) {
-                       if testData.put_error {
-                               return errors.New("Error putting data")
-                       } else {
-                               return nil
-                       }
-               }
+       locator := newRemoteBlock("pull available block to unspecified volume")
+       executePullList([]PullListItem{{
+               Locator: locator,
+               Servers: []string{remoteserver.URL}}})
+       _, err := router.keepstore.BlockRead(ctx, arvados.BlockReadOptions{
+               Locator: router.keepstore.signLocator(arvadostest.ActiveTokenV2, locator),
+               WriteTo: io.Discard})
+       c.Check(err, IsNil)
 
-               response := IssueRequest(&testData.req)
-               ExpectStatusCode(t, testData.name, testData.response_code, response)
-               ExpectBody(t, testData.name, testData.response_body, response)
+       locator0 := newRemoteBlock("pull available block to specified volume 0")
+       locator1 := newRemoteBlock("pull available block to specified volume 1")
+       executePullList([]PullListItem{
+               {
+                       Locator:   locator0,
+                       Servers:   []string{remoteserver.URL},
+                       MountUUID: vols[0].params.UUID},
+               {
+                       Locator:   locator1,
+                       Servers:   []string{remoteserver.URL},
+                       MountUUID: vols[1].params.UUID}})
+       c.Check(vols[0].data[locator0[:32]].data, NotNil)
+       c.Check(vols[1].data[locator1[:32]].data, NotNil)
 
-               // give the channel a second to read and process all pull list entries
-               time.Sleep(1000 * time.Millisecond)
+       locator = fooHash + "+3"
+       logs := executePullList([]PullListItem{{
+               Locator: locator,
+               Servers: []string{remoteserver.URL}}})
+       c.Check(logs, Matches, ".*error pulling data from remote servers.*Block not found.*locator=acbd.*\n")
 
-               expectChannelEmpty(t, pullq.NextItem)
-       }
-}
+       locator = fooHash + "+3"
+       logs = executePullList([]PullListItem{{
+               Locator: locator,
+               Servers: []string{"http://0.0.0.0:9/"}}})
+       c.Check(logs, Matches, ".*error pulling data from remote servers.*connection refused.*locator=acbd.*\n")
 
-type ClosingBuffer struct {
-       *bytes.Buffer
-}
+       locator = newRemoteBlock("log error writing to local volume")
+       vols[0].blockWrite = func(context.Context, string, []byte) error { return errors.New("test error") }
+       vols[1].blockWrite = vols[0].blockWrite
+       logs = executePullList([]PullListItem{{
+               Locator: locator,
+               Servers: []string{remoteserver.URL}}})
+       c.Check(logs, Matches, ".*error writing data to zzzzz-nyw5e-.*error=\"test error\".*locator=.*\n")
+       vols[0].blockWrite = nil
+       vols[1].blockWrite = nil
+
+       locator = newRemoteBlock("log error when destination mount does not exist")
+       logs = executePullList([]PullListItem{{
+               Locator:   locator,
+               Servers:   []string{remoteserver.URL},
+               MountUUID: "bogus-mount-uuid"}})
+       c.Check(logs, Matches, ".*ignoring pull list entry for nonexistent mount bogus-mount-uuid.*locator=.*\n")
 
-func (cb *ClosingBuffer) Close() (err error) {
-       return
+       logs = executePullList([]PullListItem{})
+       c.Logf("%s", logs)
 }