16306: Merge branch 'master'
[arvados.git] / lib / controller / integration_test.go
index aad2c4775ad20c0884cca173326e64fa97f98bc7..0388f21bee916ff4a0046971edfa9908553d00b1 100644 (file)
@@ -7,12 +7,19 @@ package controller
 import (
        "bytes"
        "context"
+       "encoding/json"
+       "fmt"
        "io"
+       "io/ioutil"
        "math"
        "net"
+       "net/http"
        "net/url"
        "os"
+       "os/exec"
        "path/filepath"
+       "strconv"
+       "strings"
 
        "git.arvados.org/arvados.git/lib/boot"
        "git.arvados.org/arvados.git/lib/config"
@@ -20,6 +27,7 @@ import (
        "git.arvados.org/arvados.git/lib/service"
        "git.arvados.org/arvados.git/sdk/go/arvados"
        "git.arvados.org/arvados.git/sdk/go/arvadosclient"
+       "git.arvados.org/arvados.git/sdk/go/arvadostest"
        "git.arvados.org/arvados.git/sdk/go/auth"
        "git.arvados.org/arvados.git/sdk/go/ctxlog"
        "git.arvados.org/arvados.git/sdk/go/keepclient"
@@ -36,6 +44,7 @@ type testCluster struct {
 
 type IntegrationSuite struct {
        testClusters map[string]*testCluster
+       oidcprovider *arvadostest.OIDCProvider
 }
 
 func (s *IntegrationSuite) SetUpSuite(c *check.C) {
@@ -45,6 +54,14 @@ func (s *IntegrationSuite) SetUpSuite(c *check.C) {
        }
 
        cwd, _ := os.Getwd()
+
+       s.oidcprovider = arvadostest.NewOIDCProvider(c)
+       s.oidcprovider.AuthEmail = "user@example.com"
+       s.oidcprovider.AuthEmailVerified = true
+       s.oidcprovider.AuthName = "Example User"
+       s.oidcprovider.ValidClientID = "clientid"
+       s.oidcprovider.ValidClientSecret = "clientsecret"
+
        s.testClusters = map[string]*testCluster{
                "z1111": nil,
                "z2222": nil,
@@ -84,19 +101,44 @@ func (s *IntegrationSuite) SetUpSuite(c *check.C) {
         Insecure: true
         Proxy: true
         ActivateUsers: true
-      z2222:
+`
+               if id != "z2222" {
+                       yaml += `      z2222:
         Host: ` + hostport["z2222"] + `
         Scheme: https
         Insecure: true
         Proxy: true
         ActivateUsers: true
-      z3333:
+`
+               }
+               if id != "z3333" {
+                       yaml += `      z3333:
         Host: ` + hostport["z3333"] + `
         Scheme: https
         Insecure: true
         Proxy: true
         ActivateUsers: true
 `
+               }
+               if id == "z1111" {
+                       yaml += `
+    Login:
+      LoginCluster: z1111
+      OpenIDConnect:
+        Enable: true
+        Issuer: ` + s.oidcprovider.Issuer.URL + `
+        ClientID: ` + s.oidcprovider.ValidClientID + `
+        ClientSecret: ` + s.oidcprovider.ValidClientSecret + `
+        EmailClaim: email
+        EmailVerifiedClaim: email_verified
+`
+               } else {
+                       yaml += `
+    Login:
+      LoginCluster: z1111
+`
+               }
+
                loader := config.NewLoader(bytes.NewBufferString(yaml), ctxlog.TestLogger(c))
                loader.Path = "-"
                loader.SkipLegacy = true
@@ -130,10 +172,15 @@ func (s *IntegrationSuite) TearDownSuite(c *check.C) {
        }
 }
 
+// Get rpc connection struct initialized to communicate with the
+// specified cluster.
 func (s *IntegrationSuite) conn(clusterID string) *rpc.Conn {
        return rpc.NewConn(clusterID, s.testClusters[clusterID].controllerURL, true, rpc.PassthroughTokenProvider)
 }
 
+// Return Context, Arvados.Client and keepclient structs initialized
+// to connect to the specified cluster (by clusterID) using with the supplied
+// Arvados token.
 func (s *IntegrationSuite) clientsWithToken(clusterID string, token string) (context.Context, *arvados.Client, *keepclient.KeepClient) {
        cl := s.testClusters[clusterID].config.Clusters[clusterID]
        ctx := auth.NewContext(context.Background(), auth.NewCredentials(token))
@@ -150,7 +197,11 @@ func (s *IntegrationSuite) clientsWithToken(clusterID string, token string) (con
        return ctx, ac, kc
 }
 
-func (s *IntegrationSuite) userClients(rootctx context.Context, c *check.C, conn *rpc.Conn, clusterID string, activate bool) (context.Context, *arvados.Client, *keepclient.KeepClient) {
+// Log in as a user called "example", get the user's API token,
+// initialize clients with the API token, set up the user and
+// optionally activate the user.  Return client structs for
+// communicating with the cluster on behalf of the 'example' user.
+func (s *IntegrationSuite) userClients(rootctx context.Context, c *check.C, conn *rpc.Conn, clusterID string, activate bool) (context.Context, *arvados.Client, *keepclient.KeepClient, arvados.User) {
        login, err := conn.UserSessionCreate(rootctx, rpc.UserSessionCreateOptions{
                ReturnTo: ",https://example.com",
                AuthInfo: rpc.UserSessionAuthInfo{
@@ -180,18 +231,26 @@ func (s *IntegrationSuite) userClients(rootctx context.Context, c *check.C, conn
                        c.Fatalf("failed to activate user -- %#v", user)
                }
        }
-       return ctx, ac, kc
+       return ctx, ac, kc, user
 }
 
+// Return Context, arvados.Client and keepclient structs initialized
+// to communicate with the cluster as the system root user.
 func (s *IntegrationSuite) rootClients(clusterID string) (context.Context, *arvados.Client, *keepclient.KeepClient) {
        return s.clientsWithToken(clusterID, s.testClusters[clusterID].config.Clusters[clusterID].SystemRootToken)
 }
 
+// Return Context, arvados.Client and keepclient structs initialized
+// to communicate with the cluster as the anonymous user.
+func (s *IntegrationSuite) anonymousClients(clusterID string) (context.Context, *arvados.Client, *keepclient.KeepClient) {
+       return s.clientsWithToken(clusterID, s.testClusters[clusterID].config.Clusters[clusterID].Users.AnonymousUserToken)
+}
+
 func (s *IntegrationSuite) TestGetCollectionByPDH(c *check.C) {
        conn1 := s.conn("z1111")
        rootctx1, _, _ := s.rootClients("z1111")
        conn3 := s.conn("z3333")
-       userctx1, ac1, kc1 := s.userClients(rootctx1, c, conn1, "z1111", true)
+       userctx1, ac1, kc1, _ := s.userClients(rootctx1, c, conn1, "z1111", true)
 
        // Create the collection to find its PDH (but don't save it
        // anywhere yet)
@@ -225,11 +284,221 @@ func (s *IntegrationSuite) TestGetCollectionByPDH(c *check.C) {
        c.Check(coll.PortableDataHash, check.Equals, pdh)
 }
 
+func (s *IntegrationSuite) TestS3WithFederatedToken(c *check.C) {
+       if _, err := exec.LookPath("s3cmd"); err != nil {
+               c.Skip("s3cmd not in PATH")
+               return
+       }
+
+       testText := "IntegrationSuite.TestS3WithFederatedToken"
+
+       conn1 := s.conn("z1111")
+       rootctx1, _, _ := s.rootClients("z1111")
+       userctx1, ac1, _, _ := s.userClients(rootctx1, c, conn1, "z1111", true)
+       conn3 := s.conn("z3333")
+
+       createColl := func(clusterID string) arvados.Collection {
+               _, ac, kc := s.clientsWithToken(clusterID, ac1.AuthToken)
+               var coll arvados.Collection
+               fs, err := coll.FileSystem(ac, kc)
+               c.Assert(err, check.IsNil)
+               f, err := fs.OpenFile("test.txt", os.O_CREATE|os.O_RDWR, 0777)
+               c.Assert(err, check.IsNil)
+               _, err = io.WriteString(f, testText)
+               c.Assert(err, check.IsNil)
+               err = f.Close()
+               c.Assert(err, check.IsNil)
+               mtxt, err := fs.MarshalManifest(".")
+               c.Assert(err, check.IsNil)
+               coll, err = s.conn(clusterID).CollectionCreate(userctx1, arvados.CreateOptions{Attrs: map[string]interface{}{
+                       "manifest_text": mtxt,
+               }})
+               c.Assert(err, check.IsNil)
+               return coll
+       }
+
+       for _, trial := range []struct {
+               clusterID string // create the collection on this cluster (then use z3333 to access it)
+               token     string
+       }{
+               // Try the hardest test first: z3333 hasn't seen
+               // z1111's token yet, and we're just passing the
+               // opaque secret part, so z3333 has to guess that it
+               // belongs to z1111.
+               {"z1111", strings.Split(ac1.AuthToken, "/")[2]},
+               {"z3333", strings.Split(ac1.AuthToken, "/")[2]},
+               {"z1111", strings.Replace(ac1.AuthToken, "/", "_", -1)},
+               {"z3333", strings.Replace(ac1.AuthToken, "/", "_", -1)},
+       } {
+               c.Logf("================ %v", trial)
+               coll := createColl(trial.clusterID)
+
+               cfgjson, err := conn3.ConfigGet(userctx1)
+               c.Assert(err, check.IsNil)
+               var cluster arvados.Cluster
+               err = json.Unmarshal(cfgjson, &cluster)
+               c.Assert(err, check.IsNil)
+
+               c.Logf("TokenV2 is %s", ac1.AuthToken)
+               host := cluster.Services.WebDAV.ExternalURL.Host
+               s3args := []string{
+                       "--ssl", "--no-check-certificate",
+                       "--host=" + host, "--host-bucket=" + host,
+                       "--access_key=" + trial.token, "--secret_key=" + trial.token,
+               }
+               buf, err := exec.Command("s3cmd", append(s3args, "ls", "s3://"+coll.UUID)...).CombinedOutput()
+               c.Check(err, check.IsNil)
+               c.Check(string(buf), check.Matches, `.* `+fmt.Sprintf("%d", len(testText))+` +s3://`+coll.UUID+`/test.txt\n`)
+
+               buf, _ = exec.Command("s3cmd", append(s3args, "get", "s3://"+coll.UUID+"/test.txt", c.MkDir()+"/tmpfile")...).CombinedOutput()
+               // Command fails because we don't return Etag header.
+               flen := strconv.Itoa(len(testText))
+               c.Check(string(buf), check.Matches, `(?ms).*`+flen+` (bytes in|of `+flen+`).*`)
+       }
+}
+
+func (s *IntegrationSuite) TestGetCollectionAsAnonymous(c *check.C) {
+       conn1 := s.conn("z1111")
+       conn3 := s.conn("z3333")
+       rootctx1, rootac1, rootkc1 := s.rootClients("z1111")
+       anonctx3, anonac3, _ := s.anonymousClients("z3333")
+
+       // Make sure anonymous token was set
+       c.Assert(anonac3.AuthToken, check.Not(check.Equals), "")
+
+       // Create the collection to find its PDH (but don't save it
+       // anywhere yet)
+       var coll1 arvados.Collection
+       fs1, err := coll1.FileSystem(rootac1, rootkc1)
+       c.Assert(err, check.IsNil)
+       f, err := fs1.OpenFile("test.txt", os.O_CREATE|os.O_RDWR, 0777)
+       c.Assert(err, check.IsNil)
+       _, err = io.WriteString(f, "IntegrationSuite.TestGetCollectionAsAnonymous")
+       c.Assert(err, check.IsNil)
+       err = f.Close()
+       c.Assert(err, check.IsNil)
+       mtxt, err := fs1.MarshalManifest(".")
+       c.Assert(err, check.IsNil)
+       pdh := arvados.PortableDataHash(mtxt)
+
+       // Save the collection on cluster z1111.
+       coll1, err = conn1.CollectionCreate(rootctx1, arvados.CreateOptions{Attrs: map[string]interface{}{
+               "manifest_text": mtxt,
+       }})
+       c.Assert(err, check.IsNil)
+
+       // Share it with the anonymous users group.
+       var outLink arvados.Link
+       err = rootac1.RequestAndDecode(&outLink, "POST", "/arvados/v1/links", nil,
+               map[string]interface{}{"link": map[string]interface{}{
+                       "link_class": "permission",
+                       "name":       "can_read",
+                       "tail_uuid":  "z1111-j7d0g-anonymouspublic",
+                       "head_uuid":  coll1.UUID,
+               },
+               })
+       c.Check(err, check.IsNil)
+
+       // Current user should be z3 anonymous user
+       outUser, err := anonac3.CurrentUser()
+       c.Check(err, check.IsNil)
+       c.Check(outUser.UUID, check.Equals, "z3333-tpzed-anonymouspublic")
+
+       // Get the token uuid
+       var outAuth arvados.APIClientAuthorization
+       err = anonac3.RequestAndDecode(&outAuth, "GET", "/arvados/v1/api_client_authorizations/current", nil, nil)
+       c.Check(err, check.IsNil)
+
+       // Make a v2 token of the z3 anonymous user, and use it on z1
+       _, anonac1, _ := s.clientsWithToken("z1111", outAuth.TokenV2())
+       outUser2, err := anonac1.CurrentUser()
+       c.Check(err, check.IsNil)
+       // z3 anonymous user will be mapped to the z1 anonymous user
+       c.Check(outUser2.UUID, check.Equals, "z1111-tpzed-anonymouspublic")
+
+       // Retrieve the collection (which is on z1) using anonymous from cluster z3333.
+       coll, err := conn3.CollectionGet(anonctx3, arvados.GetOptions{UUID: coll1.UUID})
+       c.Check(err, check.IsNil)
+       c.Check(coll.PortableDataHash, check.Equals, pdh)
+}
+
+// Get a token from the login cluster (z1111), use it to submit a
+// container request on z2222.
+func (s *IntegrationSuite) TestCreateContainerRequestWithFedToken(c *check.C) {
+       conn1 := s.conn("z1111")
+       rootctx1, _, _ := s.rootClients("z1111")
+       _, ac1, _, _ := s.userClients(rootctx1, c, conn1, "z1111", true)
+
+       // Use ac2 to get the discovery doc with a blank token, so the
+       // SDK doesn't magically pass the z1111 token to z2222 before
+       // we're ready to start our test.
+       _, ac2, _ := s.clientsWithToken("z2222", "")
+       var dd map[string]interface{}
+       err := ac2.RequestAndDecode(&dd, "GET", "discovery/v1/apis/arvados/v1/rest", nil, nil)
+       c.Assert(err, check.IsNil)
+
+       var (
+               body bytes.Buffer
+               req  *http.Request
+               resp *http.Response
+               u    arvados.User
+               cr   arvados.ContainerRequest
+       )
+       json.NewEncoder(&body).Encode(map[string]interface{}{
+               "container_request": map[string]interface{}{
+                       "command":         []string{"echo"},
+                       "container_image": "d41d8cd98f00b204e9800998ecf8427e+0",
+                       "cwd":             "/",
+                       "output_path":     "/",
+               },
+       })
+       ac2.AuthToken = ac1.AuthToken
+
+       c.Log("...post CR with good (but not yet cached) token")
+       cr = arvados.ContainerRequest{}
+       req, err = http.NewRequest("POST", "https://"+ac2.APIHost+"/arvados/v1/container_requests", bytes.NewReader(body.Bytes()))
+       c.Assert(err, check.IsNil)
+       req.Header.Set("Content-Type", "application/json")
+       err = ac2.DoAndDecode(&cr, req)
+       c.Logf("err == %#v", err)
+
+       c.Log("...get user with good token")
+       u = arvados.User{}
+       req, err = http.NewRequest("GET", "https://"+ac2.APIHost+"/arvados/v1/users/current", nil)
+       c.Assert(err, check.IsNil)
+       err = ac2.DoAndDecode(&u, req)
+       c.Check(err, check.IsNil)
+       c.Check(u.UUID, check.Matches, "z1111-tpzed-.*")
+
+       c.Log("...post CR with good cached token")
+       cr = arvados.ContainerRequest{}
+       req, err = http.NewRequest("POST", "https://"+ac2.APIHost+"/arvados/v1/container_requests", bytes.NewReader(body.Bytes()))
+       c.Assert(err, check.IsNil)
+       req.Header.Set("Content-Type", "application/json")
+       err = ac2.DoAndDecode(&cr, req)
+       c.Check(err, check.IsNil)
+       c.Check(cr.UUID, check.Matches, "z2222-.*")
+
+       c.Log("...post with good cached token ('OAuth2 ...')")
+       cr = arvados.ContainerRequest{}
+       req, err = http.NewRequest("POST", "https://"+ac2.APIHost+"/arvados/v1/container_requests", bytes.NewReader(body.Bytes()))
+       c.Assert(err, check.IsNil)
+       req.Header.Set("Content-Type", "application/json")
+       req.Header.Set("Authorization", "OAuth2 "+ac2.AuthToken)
+       resp, err = arvados.InsecureHTTPClient.Do(req)
+       if c.Check(err, check.IsNil) {
+               err = json.NewDecoder(resp.Body).Decode(&cr)
+               c.Check(err, check.IsNil)
+               c.Check(cr.UUID, check.Matches, "z2222-.*")
+       }
+}
+
 // Test for bug #16263
 func (s *IntegrationSuite) TestListUsers(c *check.C) {
        rootctx1, _, _ := s.rootClients("z1111")
        conn1 := s.conn("z1111")
        conn3 := s.conn("z3333")
+       userctx1, _, _, _ := s.userClients(rootctx1, c, conn1, "z1111", true)
 
        // Make sure LoginCluster is properly configured
        for cls := range s.testClusters {
@@ -239,7 +508,9 @@ func (s *IntegrationSuite) TestListUsers(c *check.C) {
                        check.Commentf("incorrect LoginCluster config on cluster %q", cls))
        }
        // Make sure z1111 has users with NULL usernames
-       lst, err := conn1.UserList(rootctx1, arvados.ListOptions{Limit: -1})
+       lst, err := conn1.UserList(rootctx1, arvados.ListOptions{
+               Limit: math.MaxInt64, // check that large limit works (see #16263)
+       })
        nullUsername := false
        c.Assert(err, check.IsNil)
        c.Assert(len(lst.Items), check.Not(check.Equals), 0)
@@ -249,27 +520,161 @@ func (s *IntegrationSuite) TestListUsers(c *check.C) {
                }
        }
        c.Assert(nullUsername, check.Equals, true)
+
+       user1, err := conn1.UserGetCurrent(userctx1, arvados.GetOptions{})
+       c.Assert(err, check.IsNil)
+       c.Check(user1.IsActive, check.Equals, true)
+
        // Ask for the user list on z3333 using z1111's system root token
-       _, err = conn3.UserList(rootctx1, arvados.ListOptions{Limit: -1})
-       c.Assert(err, check.IsNil, check.Commentf("getting user list: %q", err))
+       lst, err = conn3.UserList(rootctx1, arvados.ListOptions{Limit: -1})
+       c.Assert(err, check.IsNil)
+       found := false
+       for _, user := range lst.Items {
+               if user.UUID == user1.UUID {
+                       c.Check(user.IsActive, check.Equals, true)
+                       found = true
+                       break
+               }
+       }
+       c.Check(found, check.Equals, true)
+
+       // Deactivate user acct on z1111
+       _, err = conn1.UserUnsetup(rootctx1, arvados.GetOptions{UUID: user1.UUID})
+       c.Assert(err, check.IsNil)
+
+       // Get user list from z3333, check the returned z1111 user is
+       // deactivated
+       lst, err = conn3.UserList(rootctx1, arvados.ListOptions{Limit: -1})
+       c.Assert(err, check.IsNil)
+       found = false
+       for _, user := range lst.Items {
+               if user.UUID == user1.UUID {
+                       c.Check(user.IsActive, check.Equals, false)
+                       found = true
+                       break
+               }
+       }
+       c.Check(found, check.Equals, true)
+
+       // Deactivated user can see is_active==false via "get current
+       // user" API
+       user1, err = conn3.UserGetCurrent(userctx1, arvados.GetOptions{})
+       c.Assert(err, check.IsNil)
+       c.Check(user1.IsActive, check.Equals, false)
 }
 
-// Test for bug #16263
-func (s *IntegrationSuite) TestListUsersWithMaxLimit(c *check.C) {
-       rootctx1, _, _ := s.rootClients("z1111")
+func (s *IntegrationSuite) TestSetupUserWithVM(c *check.C) {
+       conn1 := s.conn("z1111")
        conn3 := s.conn("z3333")
-       maxLimit := int64(math.MaxInt64)
+       rootctx1, rootac1, _ := s.rootClients("z1111")
 
-       // Make sure LoginCluster is properly configured
-       for cls := range s.testClusters {
-               c.Check(
-                       s.testClusters[cls].config.Clusters[cls].Login.LoginCluster,
-                       check.Equals, "z1111",
-                       check.Commentf("incorrect LoginCluster config on cluster %q", cls))
-       }
+       // Create user on LoginCluster z1111
+       _, _, _, user := s.userClients(rootctx1, c, conn1, "z1111", false)
+
+       // Make a new root token (because rootClients() uses SystemRootToken)
+       var outAuth arvados.APIClientAuthorization
+       err := rootac1.RequestAndDecode(&outAuth, "POST", "/arvados/v1/api_client_authorizations", nil, nil)
+       c.Check(err, check.IsNil)
+
+       // Make a v2 root token to communicate with z3333
+       rootctx3, rootac3, _ := s.clientsWithToken("z3333", outAuth.TokenV2())
+
+       // Create VM on z3333
+       var outVM arvados.VirtualMachine
+       err = rootac3.RequestAndDecode(&outVM, "POST", "/arvados/v1/virtual_machines", nil,
+               map[string]interface{}{"virtual_machine": map[string]interface{}{
+                       "hostname": "example",
+               },
+               })
+       c.Check(outVM.UUID[0:5], check.Equals, "z3333")
+       c.Check(err, check.IsNil)
+
+       // Make sure z3333 user list is up to date
+       _, err = conn3.UserList(rootctx3, arvados.ListOptions{Limit: 1000})
+       c.Check(err, check.IsNil)
+
+       // Try to set up user on z3333 with the VM
+       _, err = conn3.UserSetup(rootctx3, arvados.UserSetupOptions{UUID: user.UUID, VMUUID: outVM.UUID})
+       c.Check(err, check.IsNil)
+
+       var outLinks arvados.LinkList
+       err = rootac3.RequestAndDecode(&outLinks, "GET", "/arvados/v1/links", nil,
+               arvados.ListOptions{
+                       Limit: 1000,
+                       Filters: []arvados.Filter{
+                               {
+                                       Attr:     "tail_uuid",
+                                       Operator: "=",
+                                       Operand:  user.UUID,
+                               },
+                               {
+                                       Attr:     "head_uuid",
+                                       Operator: "=",
+                                       Operand:  outVM.UUID,
+                               },
+                               {
+                                       Attr:     "name",
+                                       Operator: "=",
+                                       Operand:  "can_login",
+                               },
+                               {
+                                       Attr:     "link_class",
+                                       Operator: "=",
+                                       Operand:  "permission",
+                               }}})
+       c.Check(err, check.IsNil)
+
+       c.Check(len(outLinks.Items), check.Equals, 1)
+}
+
+func (s *IntegrationSuite) TestOIDCAccessTokenAuth(c *check.C) {
+       conn1 := s.conn("z1111")
+       rootctx1, _, _ := s.rootClients("z1111")
+       s.userClients(rootctx1, c, conn1, "z1111", true)
+
+       accesstoken := s.oidcprovider.ValidAccessToken()
+
+       for _, clusterid := range []string{"z1111", "z2222"} {
+               c.Logf("trying clusterid %s", clusterid)
+
+               conn := s.conn(clusterid)
+               ctx, ac, kc := s.clientsWithToken(clusterid, accesstoken)
+
+               var coll arvados.Collection
+
+               // Write some file data and create a collection
+               {
+                       fs, err := coll.FileSystem(ac, kc)
+                       c.Assert(err, check.IsNil)
+                       f, err := fs.OpenFile("test.txt", os.O_CREATE|os.O_RDWR, 0777)
+                       c.Assert(err, check.IsNil)
+                       _, err = io.WriteString(f, "IntegrationSuite.TestOIDCAccessTokenAuth")
+                       c.Assert(err, check.IsNil)
+                       err = f.Close()
+                       c.Assert(err, check.IsNil)
+                       mtxt, err := fs.MarshalManifest(".")
+                       c.Assert(err, check.IsNil)
+                       coll, err = conn.CollectionCreate(ctx, arvados.CreateOptions{Attrs: map[string]interface{}{
+                               "manifest_text": mtxt,
+                       }})
+                       c.Assert(err, check.IsNil)
+               }
 
-       // Ask for the user list on z3333 using z1111's system root token and
-       // limit: max int64 value.
-       _, err := conn3.UserList(rootctx1, arvados.ListOptions{Limit: maxLimit})
-       c.Assert(err, check.IsNil, check.Commentf("getting user list: %q", err))
+               // Read the collection & file data
+               {
+                       user, err := conn.UserGetCurrent(ctx, arvados.GetOptions{})
+                       c.Assert(err, check.IsNil)
+                       c.Check(user.FullName, check.Equals, "Example User")
+                       coll, err = conn.CollectionGet(ctx, arvados.GetOptions{UUID: coll.UUID})
+                       c.Assert(err, check.IsNil)
+                       c.Check(coll.ManifestText, check.Not(check.Equals), "")
+                       fs, err := coll.FileSystem(ac, kc)
+                       c.Assert(err, check.IsNil)
+                       f, err := fs.Open("test.txt")
+                       c.Assert(err, check.IsNil)
+                       buf, err := ioutil.ReadAll(f)
+                       c.Assert(err, check.IsNil)
+                       c.Check(buf, check.DeepEquals, []byte("IntegrationSuite.TestOIDCAccessTokenAuth"))
+               }
+       }
 }