X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/7bb1d40eed9436c2f7fbd5b11106f6fd8f020441..f4aa4dbbefe8b6dd65e3a112642da288774cf951:/services/crunch-dispatch-slurm/crunch-dispatch-slurm_test.go

diff --git a/services/crunch-dispatch-slurm/crunch-dispatch-slurm_test.go b/services/crunch-dispatch-slurm/crunch-dispatch-slurm_test.go
index d49daadb5b..499f6d5d72 100644
--- a/services/crunch-dispatch-slurm/crunch-dispatch-slurm_test.go
+++ b/services/crunch-dispatch-slurm/crunch-dispatch-slurm_test.go
@@ -1,8 +1,13 @@
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
 package main
 
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -15,6 +20,7 @@ import (
 	"testing"
 	"time"
 
+	"git.curoverse.com/arvados.git/lib/dispatchcloud"
 	"git.curoverse.com/arvados.git/sdk/go/arvados"
 	"git.curoverse.com/arvados.git/sdk/go/arvadosclient"
 	"git.curoverse.com/arvados.git/sdk/go/arvadostest"
@@ -27,179 +33,78 @@ func Test(t *testing.T) {
 	TestingT(t)
 }
 
-var _ = Suite(&TestSuite{})
-var _ = Suite(&MockArvadosServerSuite{})
-
-type TestSuite struct{}
-type MockArvadosServerSuite struct{}
-
-var initialArgs []string
-
-func (s *TestSuite) SetUpSuite(c *C) {
-	initialArgs = os.Args
-}
+var _ = Suite(&IntegrationSuite{})
+var _ = Suite(&StubbedSuite{})
 
-func (s *TestSuite) TearDownSuite(c *C) {
+type IntegrationSuite struct {
+	disp  Dispatcher
+	slurm slurmFake
 }
 
-func (s *TestSuite) SetUpTest(c *C) {
-	args := []string{"crunch-dispatch-slurm"}
-	os.Args = args
-
+func (s *IntegrationSuite) SetUpTest(c *C) {
 	arvadostest.StartAPI()
 	os.Setenv("ARVADOS_API_TOKEN", arvadostest.Dispatch1Token)
+	s.disp = Dispatcher{}
+	s.disp.setup()
+	s.slurm = slurmFake{}
 }
 
-func (s *TestSuite) TearDownTest(c *C) {
-	os.Args = initialArgs
+func (s *IntegrationSuite) TearDownTest(c *C) {
 	arvadostest.ResetEnv()
 	arvadostest.StopAPI()
 }
 
-func (s *MockArvadosServerSuite) TearDownTest(c *C) {
-	arvadostest.ResetEnv()
+type slurmFake struct {
+	didBatch   [][]string
+	didCancel  []string
+	didRelease []string
+	didRenice  [][]string
+	queue      string
+	// If non-nil, run this func during the 2nd+ call to Cancel()
+	onCancel func()
+	// Error returned by Batch()
+	errBatch error
 }
 
-func (s *TestSuite) TestIntegrationNormal(c *C) {
-	done := false
-	container := s.integrationTest(c,
-		func() *exec.Cmd {
-			if done {
-				return exec.Command("true")
-			} else {
-				return exec.Command("echo", "zzzzz-dz642-queuedcontainer")
-			}
-		},
-		nil,
-		nil,
-		[]string(nil),
-		func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
-			dispatcher.UpdateState(container.UUID, dispatch.Running)
-			time.Sleep(3 * time.Second)
-			dispatcher.UpdateState(container.UUID, dispatch.Complete)
-			done = true
-		})
-	c.Check(container.State, Equals, arvados.ContainerStateComplete)
+func (sf *slurmFake) Batch(script io.Reader, args []string) error {
+	sf.didBatch = append(sf.didBatch, args)
+	return sf.errBatch
 }
 
-func (s *TestSuite) TestIntegrationCancel(c *C) {
-	var cmd *exec.Cmd
-	var scancelCmdLine []string
-	attempt := 0
-
-	container := s.integrationTest(c,
-		func() *exec.Cmd {
-			if cmd != nil && cmd.ProcessState != nil {
-				return exec.Command("true")
-			} else {
-				return exec.Command("echo", "zzzzz-dz642-queuedcontainer")
-			}
-		},
-		func(container arvados.Container) *exec.Cmd {
-			if attempt++; attempt == 1 {
-				return exec.Command("false")
-			} else {
-				scancelCmdLine = scancelFunc(container).Args
-				cmd = exec.Command("echo")
-				return cmd
-			}
-		},
-		nil,
-		[]string(nil),
-		func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
-			dispatcher.UpdateState(container.UUID, dispatch.Running)
-			time.Sleep(1 * time.Second)
-			dispatcher.Arv.Update("containers", container.UUID,
-				arvadosclient.Dict{
-					"container": arvadosclient.Dict{"priority": 0}},
-				nil)
-		})
-	c.Check(container.State, Equals, arvados.ContainerStateCancelled)
-	c.Check(scancelCmdLine, DeepEquals, []string{"scancel", "--name=zzzzz-dz642-queuedcontainer"})
+func (sf *slurmFake) QueueCommand(args []string) *exec.Cmd {
+	return exec.Command("echo", sf.queue)
 }
 
-func (s *TestSuite) TestIntegrationMissingFromSqueue(c *C) {
-	container := s.integrationTest(c,
-		func() *exec.Cmd { return exec.Command("echo") },
-		nil,
-		nil,
-		[]string{"sbatch",
-			fmt.Sprintf("--job-name=%s", "zzzzz-dz642-queuedcontainer"),
-			fmt.Sprintf("--mem=%d", 11445),
-			fmt.Sprintf("--cpus-per-task=%d", 4),
-			fmt.Sprintf("--tmp=%d", 45777)},
-		func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
-			dispatcher.UpdateState(container.UUID, dispatch.Running)
-			time.Sleep(3 * time.Second)
-			dispatcher.UpdateState(container.UUID, dispatch.Complete)
-		})
-	c.Check(container.State, Equals, arvados.ContainerStateCancelled)
+func (sf *slurmFake) Release(name string) error {
+	sf.didRelease = append(sf.didRelease, name)
+	return nil
 }
 
-func (s *TestSuite) TestSbatchFail(c *C) {
-	container := s.integrationTest(c,
-		func() *exec.Cmd { return exec.Command("echo") },
-		nil,
-		func(container arvados.Container) *exec.Cmd {
-			return exec.Command("false")
-		},
-		[]string(nil),
-		func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
-			dispatcher.UpdateState(container.UUID, dispatch.Running)
-			dispatcher.UpdateState(container.UUID, dispatch.Complete)
-		})
-	c.Check(container.State, Equals, arvados.ContainerStateComplete)
-
-	arv, err := arvadosclient.MakeArvadosClient()
-	c.Assert(err, IsNil)
+func (sf *slurmFake) Renice(name string, nice int64) error {
+	sf.didRenice = append(sf.didRenice, []string{name, fmt.Sprintf("%d", nice)})
+	return nil
+}
 
-	var ll arvados.LogList
-	err = arv.List("logs", arvadosclient.Dict{"filters": [][]string{
-		[]string{"object_uuid", "=", container.UUID},
-		[]string{"event_type", "=", "dispatch"},
-	}}, &ll)
-	c.Assert(len(ll.Items), Equals, 1)
+func (sf *slurmFake) Cancel(name string) error {
+	sf.didCancel = append(sf.didCancel, name)
+	if len(sf.didCancel) == 1 {
+		// simulate error on first attempt
+		return errors.New("something terrible happened")
+	}
+	if sf.onCancel != nil {
+		sf.onCancel()
+	}
+	return nil
 }
 
-func (s *TestSuite) integrationTest(c *C,
-	newSqueueCmd func() *exec.Cmd,
-	newScancelCmd func(arvados.Container) *exec.Cmd,
-	newSbatchCmd func(arvados.Container) *exec.Cmd,
-	sbatchCmdComps []string,
+func (s *IntegrationSuite) integrationTest(c *C,
+	expectBatch [][]string,
 	runContainer func(*dispatch.Dispatcher, arvados.Container)) arvados.Container {
 	arvadostest.ResetEnv()
 
 	arv, err := arvadosclient.MakeArvadosClient()
 	c.Assert(err, IsNil)
 
-	var sbatchCmdLine []string
-
-	// Override sbatchCmd
-	defer func(orig func(arvados.Container) *exec.Cmd) {
-		sbatchCmd = orig
-	}(sbatchCmd)
-
-	if newSbatchCmd != nil {
-		sbatchCmd = newSbatchCmd
-	} else {
-		sbatchCmd = func(container arvados.Container) *exec.Cmd {
-			sbatchCmdLine = sbatchFunc(container).Args
-			return exec.Command("sh")
-		}
-	}
-
-	// Override squeueCmd
-	defer func(orig func() *exec.Cmd) {
-		squeueCmd = orig
-	}(squeueCmd)
-	squeueCmd = newSqueueCmd
-
-	// Override scancel
-	defer func(orig func(arvados.Container) *exec.Cmd) {
-		scancelCmd = orig
-	}(scancelCmd)
-	scancelCmd = newScancelCmd
-
 	// There should be one queued container
 	params := arvadosclient.Dict{
 		"filters": [][]string{{"state", "=", "Queued"}},
@@ -209,33 +114,35 @@ func (s *TestSuite) integrationTest(c *C,
 	c.Check(err, IsNil)
 	c.Check(len(containers.Items), Equals, 1)
 
-	theConfig.CrunchRunCommand = []string{"echo"}
+	s.disp.CrunchRunCommand = []string{"echo"}
 
 	ctx, cancel := context.WithCancel(context.Background())
 	doneRun := make(chan struct{})
 
-	dispatcher := dispatch.Dispatcher{
+	s.disp.Dispatcher = &dispatch.Dispatcher{
 		Arv:        arv,
-		PollPeriod: time.Duration(1) * time.Second,
+		PollPeriod: time.Second,
 		RunContainer: func(disp *dispatch.Dispatcher, ctr arvados.Container, status <-chan arvados.Container) {
 			go func() {
 				runContainer(disp, ctr)
+				s.slurm.queue = ""
 				doneRun <- struct{}{}
 			}()
-			run(disp, ctr, status)
+			s.disp.runContainer(disp, ctr, status)
 			cancel()
 		},
 	}
 
-	sqCheck = &SqueueChecker{Period: 500 * time.Millisecond}
+	s.disp.slurm = &s.slurm
+	s.disp.sqCheck = &SqueueChecker{Period: 500 * time.Millisecond, Slurm: s.disp.slurm}
 
-	err = dispatcher.Run(ctx)
+	err = s.disp.Dispatcher.Run(ctx)
 	<-doneRun
 	c.Assert(err, Equals, context.Canceled)
 
-	sqCheck.Stop()
+	s.disp.sqCheck.Stop()
 
-	c.Check(sbatchCmdLine, DeepEquals, sbatchCmdComps)
+	c.Check(s.slurm.didBatch, DeepEquals, expectBatch)
 
 	// There should be no queued containers now
 	err = arv.List("containers", params, &containers)
@@ -249,15 +156,95 @@ func (s *TestSuite) integrationTest(c *C,
 	return container
 }
 
-func (s *MockArvadosServerSuite) TestAPIErrorGettingContainers(c *C) {
+func (s *IntegrationSuite) TestNormal(c *C) {
+	s.slurm = slurmFake{queue: "zzzzz-dz642-queuedcontainer 10000 100 PENDING Resources\n"}
+	container := s.integrationTest(c,
+		nil,
+		func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
+			dispatcher.UpdateState(container.UUID, dispatch.Running)
+			time.Sleep(3 * time.Second)
+			dispatcher.UpdateState(container.UUID, dispatch.Complete)
+		})
+	c.Check(container.State, Equals, arvados.ContainerStateComplete)
+}
+
+func (s *IntegrationSuite) TestCancel(c *C) {
+	s.slurm = slurmFake{queue: "zzzzz-dz642-queuedcontainer 10000 100 PENDING Resources\n"}
+	readyToCancel := make(chan bool)
+	s.slurm.onCancel = func() { <-readyToCancel }
+	container := s.integrationTest(c,
+		nil,
+		func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
+			dispatcher.UpdateState(container.UUID, dispatch.Running)
+			time.Sleep(time.Second)
+			dispatcher.Arv.Update("containers", container.UUID,
+				arvadosclient.Dict{
+					"container": arvadosclient.Dict{"priority": 0}},
+				nil)
+			readyToCancel <- true
+			close(readyToCancel)
+		})
+	c.Check(container.State, Equals, arvados.ContainerStateCancelled)
+	c.Check(len(s.slurm.didCancel) > 1, Equals, true)
+	c.Check(s.slurm.didCancel[:2], DeepEquals, []string{"zzzzz-dz642-queuedcontainer", "zzzzz-dz642-queuedcontainer"})
+}
+
+func (s *IntegrationSuite) TestMissingFromSqueue(c *C) {
+	container := s.integrationTest(c,
+		[][]string{{
+			fmt.Sprintf("--job-name=%s", "zzzzz-dz642-queuedcontainer"),
+			fmt.Sprintf("--mem=%d", 11445),
+			fmt.Sprintf("--cpus-per-task=%d", 4),
+			fmt.Sprintf("--tmp=%d", 45777),
+			fmt.Sprintf("--nice=%d", 10000)}},
+		func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
+			dispatcher.UpdateState(container.UUID, dispatch.Running)
+			time.Sleep(3 * time.Second)
+			dispatcher.UpdateState(container.UUID, dispatch.Complete)
+		})
+	c.Check(container.State, Equals, arvados.ContainerStateCancelled)
+}
+
+func (s *IntegrationSuite) TestSbatchFail(c *C) {
+	s.slurm = slurmFake{errBatch: errors.New("something terrible happened")}
+	container := s.integrationTest(c,
+		[][]string{{"--job-name=zzzzz-dz642-queuedcontainer", "--mem=11445", "--cpus-per-task=4", "--tmp=45777", "--nice=10000"}},
+		func(dispatcher *dispatch.Dispatcher, container arvados.Container) {
+			dispatcher.UpdateState(container.UUID, dispatch.Running)
+			dispatcher.UpdateState(container.UUID, dispatch.Complete)
+		})
+	c.Check(container.State, Equals, arvados.ContainerStateComplete)
+
+	arv, err := arvadosclient.MakeArvadosClient()
+	c.Assert(err, IsNil)
+
+	var ll arvados.LogList
+	err = arv.List("logs", arvadosclient.Dict{"filters": [][]string{
+		{"object_uuid", "=", container.UUID},
+		{"event_type", "=", "dispatch"},
+	}}, &ll)
+	c.Assert(err, IsNil)
+	c.Assert(len(ll.Items), Equals, 1)
+}
+
+type StubbedSuite struct {
+	disp Dispatcher
+}
+
+func (s *StubbedSuite) SetUpTest(c *C) {
+	s.disp = Dispatcher{}
+	s.disp.setup()
+}
+
+func (s *StubbedSuite) TestAPIErrorGettingContainers(c *C) {
 	apiStubResponses := make(map[string]arvadostest.StubResponse)
 	apiStubResponses["/arvados/v1/api_client_authorizations/current"] = arvadostest.StubResponse{200, `{"uuid":"` + arvadostest.Dispatch1AuthUUID + `"}`}
 	apiStubResponses["/arvados/v1/containers"] = arvadostest.StubResponse{500, string(`{}`)}
 
-	testWithServerStub(c, apiStubResponses, "echo", "Error getting list of containers")
+	s.testWithServerStub(c, apiStubResponses, "echo", "Error getting list of containers")
 }
 
-func testWithServerStub(c *C, apiStubResponses map[string]arvadostest.StubResponse, crunchCmd string, expected string) {
+func (s *StubbedSuite) testWithServerStub(c *C, apiStubResponses map[string]arvadostest.StubResponse, crunchCmd string, expected string) {
 	apiStub := arvadostest.ServerStub{apiStubResponses}
 
 	api := httptest.NewServer(&apiStub)
@@ -275,19 +262,19 @@ func testWithServerStub(c *C, apiStubResponses map[string]arvadostest.StubRespon
 	log.SetOutput(io.MultiWriter(buf, os.Stderr))
 	defer log.SetOutput(os.Stderr)
 
-	theConfig.CrunchRunCommand = []string{crunchCmd}
+	s.disp.CrunchRunCommand = []string{crunchCmd}
 
 	ctx, cancel := context.WithCancel(context.Background())
 	dispatcher := dispatch.Dispatcher{
 		Arv:        arv,
-		PollPeriod: time.Duration(1) * time.Second,
+		PollPeriod: time.Second,
 		RunContainer: func(disp *dispatch.Dispatcher, ctr arvados.Container, status <-chan arvados.Container) {
 			go func() {
-				time.Sleep(1 * time.Second)
+				time.Sleep(time.Second)
 				disp.UpdateState(ctr.UUID, dispatch.Running)
 				disp.UpdateState(ctr.UUID, dispatch.Complete)
 			}()
-			run(disp, ctr, status)
+			s.disp.runContainer(disp, ctr, status)
 			cancel()
 		},
 	}
@@ -305,15 +292,12 @@ func testWithServerStub(c *C, apiStubResponses map[string]arvadostest.StubRespon
 	c.Check(buf.String(), Matches, `(?ms).*`+expected+`.*`)
 }
 
-func (s *MockArvadosServerSuite) TestNoSuchConfigFile(c *C) {
-	var config Config
-	err := readConfig(&config, "/nosuchdir89j7879/8hjwr7ojgyy7")
+func (s *StubbedSuite) TestNoSuchConfigFile(c *C) {
+	err := s.disp.readConfig("/nosuchdir89j7879/8hjwr7ojgyy7")
 	c.Assert(err, NotNil)
 }
 
-func (s *MockArvadosServerSuite) TestBadSbatchArgsConfig(c *C) {
-	var config Config
-
+func (s *StubbedSuite) TestBadSbatchArgsConfig(c *C) {
 	tmpfile, err := ioutil.TempFile(os.TempDir(), "config")
 	c.Check(err, IsNil)
 	defer os.Remove(tmpfile.Name())
@@ -321,13 +305,11 @@ func (s *MockArvadosServerSuite) TestBadSbatchArgsConfig(c *C) {
 	_, err = tmpfile.Write([]byte(`{"SbatchArguments": "oops this is not a string array"}`))
 	c.Check(err, IsNil)
 
-	err = readConfig(&config, tmpfile.Name())
+	err = s.disp.readConfig(tmpfile.Name())
 	c.Assert(err, NotNil)
 }
 
-func (s *MockArvadosServerSuite) TestNoSuchArgInConfigIgnored(c *C) {
-	var config Config
-
+func (s *StubbedSuite) TestNoSuchArgInConfigIgnored(c *C) {
 	tmpfile, err := ioutil.TempFile(os.TempDir(), "config")
 	c.Check(err, IsNil)
 	defer os.Remove(tmpfile.Name())
@@ -335,14 +317,12 @@ func (s *MockArvadosServerSuite) TestNoSuchArgInConfigIgnored(c *C) {
 	_, err = tmpfile.Write([]byte(`{"NoSuchArg": "Nobody loves me, not one tiny hunk."}`))
 	c.Check(err, IsNil)
 
-	err = readConfig(&config, tmpfile.Name())
+	err = s.disp.readConfig(tmpfile.Name())
 	c.Assert(err, IsNil)
-	c.Check(0, Equals, len(config.SbatchArguments))
+	c.Check(0, Equals, len(s.disp.SbatchArguments))
 }
 
-func (s *MockArvadosServerSuite) TestReadConfig(c *C) {
-	var config Config
-
+func (s *StubbedSuite) TestReadConfig(c *C) {
 	tmpfile, err := ioutil.TempFile(os.TempDir(), "config")
 	c.Check(err, IsNil)
 	defer os.Remove(tmpfile.Name())
@@ -352,46 +332,90 @@ func (s *MockArvadosServerSuite) TestReadConfig(c *C) {
 	_, err = tmpfile.Write([]byte(argsS))
 	c.Check(err, IsNil)
 
-	err = readConfig(&config, tmpfile.Name())
+	err = s.disp.readConfig(tmpfile.Name())
 	c.Assert(err, IsNil)
-	c.Check(3, Equals, len(config.SbatchArguments))
-	c.Check(args, DeepEquals, config.SbatchArguments)
+	c.Check(args, DeepEquals, s.disp.SbatchArguments)
 }
 
-func (s *MockArvadosServerSuite) TestSbatchFuncWithNoConfigArgs(c *C) {
-	testSbatchFuncWithArgs(c, nil)
-}
-
-func (s *MockArvadosServerSuite) TestSbatchFuncWithEmptyConfigArgs(c *C) {
-	testSbatchFuncWithArgs(c, []string{})
-}
+func (s *StubbedSuite) TestSbatchArgs(c *C) {
+	container := arvados.Container{
+		UUID:               "123",
+		RuntimeConstraints: arvados.RuntimeConstraints{RAM: 250000000, VCPUs: 2},
+		Priority:           1,
+	}
 
-func (s *MockArvadosServerSuite) TestSbatchFuncWithConfigArgs(c *C) {
-	testSbatchFuncWithArgs(c, []string{"--arg1=v1", "--arg2"})
+	for _, defaults := range [][]string{
+		nil,
+		{},
+		{"--arg1=v1", "--arg2"},
+	} {
+		c.Logf("%#v", defaults)
+		s.disp.SbatchArguments = defaults
+
+		args, err := s.disp.sbatchArgs(container)
+		c.Check(args, DeepEquals, append(defaults, "--job-name=123", "--mem=239", "--cpus-per-task=2", "--tmp=0", "--nice=10000"))
+		c.Check(err, IsNil)
+	}
 }
 
-func testSbatchFuncWithArgs(c *C, args []string) {
-	theConfig.SbatchArguments = append(theConfig.SbatchArguments, args...)
-
-	container := arvados.Container{UUID: "123", RuntimeConstraints: arvados.RuntimeConstraints{RAM: 250000000, VCPUs: 2}}
-	sbatchCmd := sbatchFunc(container)
-
-	var expected []string
-	expected = append(expected, "sbatch")
-	expected = append(expected, theConfig.SbatchArguments...)
-	expected = append(expected, "--job-name=123", "--mem=239", "--cpus-per-task=2", "--tmp=0")
+func (s *StubbedSuite) TestSbatchInstanceTypeConstraint(c *C) {
+	container := arvados.Container{
+		UUID:               "123",
+		RuntimeConstraints: arvados.RuntimeConstraints{RAM: 250000000, VCPUs: 2},
+		Priority:           1,
+	}
 
-	c.Check(sbatchCmd.Args, DeepEquals, expected)
+	for _, trial := range []struct {
+		types      []arvados.InstanceType
+		sbatchArgs []string
+		err        error
+	}{
+		// Choose node type => use --constraint arg
+		{
+			types: []arvados.InstanceType{
+				{Name: "a1.tiny", Price: 0.02, RAM: 128000000, VCPUs: 1},
+				{Name: "a1.small", Price: 0.04, RAM: 256000000, VCPUs: 2},
+				{Name: "a1.medium", Price: 0.08, RAM: 512000000, VCPUs: 4},
+				{Name: "a1.large", Price: 0.16, RAM: 1024000000, VCPUs: 8},
+			},
+			sbatchArgs: []string{"--constraint=instancetype=a1.medium"},
+		},
+		// No node types configured => no slurm constraint
+		{
+			types:      nil,
+			sbatchArgs: nil,
+		},
+		// No node type is big enough => error
+		{
+			types: []arvados.InstanceType{
+				{Name: "a1.tiny", Price: 0.02, RAM: 128000000, VCPUs: 1},
+			},
+			err: dispatchcloud.ErrConstraintsNotSatisfiable,
+		},
+	} {
+		c.Logf("%#v", trial)
+		s.disp.cluster = &arvados.Cluster{InstanceTypes: trial.types}
+
+		args, err := s.disp.sbatchArgs(container)
+		c.Check(err, Equals, trial.err)
+		if trial.err == nil {
+			c.Check(args, DeepEquals, append([]string{"--job-name=123", "--mem=239", "--cpus-per-task=2", "--tmp=0", "--nice=10000"}, trial.sbatchArgs...))
+		}
+	}
 }
 
-func (s *MockArvadosServerSuite) TestSbatchPartition(c *C) {
-	theConfig.SbatchArguments = nil
-	container := arvados.Container{UUID: "123", RuntimeConstraints: arvados.RuntimeConstraints{RAM: 250000000, VCPUs: 1}, SchedulingParameters: arvados.SchedulingParameters{Partitions: []string{"blurb", "b2"}}}
-	sbatchCmd := sbatchFunc(container)
-
-	var expected []string
-	expected = append(expected, "sbatch")
-	expected = append(expected, "--job-name=123", "--mem=239", "--cpus-per-task=1", "--tmp=0", "--partition=blurb,b2")
+func (s *StubbedSuite) TestSbatchPartition(c *C) {
+	container := arvados.Container{
+		UUID:                 "123",
+		RuntimeConstraints:   arvados.RuntimeConstraints{RAM: 250000000, VCPUs: 1},
+		SchedulingParameters: arvados.SchedulingParameters{Partitions: []string{"blurb", "b2"}},
+		Priority:             1,
+	}
 
-	c.Check(sbatchCmd.Args, DeepEquals, expected)
+	args, err := s.disp.sbatchArgs(container)
+	c.Check(args, DeepEquals, []string{
+		"--job-name=123", "--mem=239", "--cpus-per-task=1", "--tmp=0", "--nice=10000",
+		"--partition=blurb,b2",
+	})
+	c.Check(err, IsNil)
 }