Portable client/driver tests.

client/driver/docker_test.go

@@ -119,6 +119,7 @@ func dockerSetup(t *testing.T, task *structs.Task) (*docker.Client, DriverHandle
 }
 
 func TestDockerDriver_Handle(t *testing.T) {
+	t.Parallel()
 	h := &DockerHandle{
 		imageID:     "imageid",
 		containerID: "containerid",
@@ -135,6 +136,7 @@ func TestDockerDriver_Handle(t *testing.T) {
 
 // This test should always pass, even if docker daemon is not available
 func TestDockerDriver_Fingerprint(t *testing.T) {
+	t.Parallel()
 	d := NewDockerDriver(testDockerDriverContext(""))
 	node := &structs.Node{
 		Attributes: make(map[string]string),
@@ -153,6 +155,7 @@ func TestDockerDriver_Fingerprint(t *testing.T) {
 }
 
 func TestDockerDriver_StartOpen_Wait(t *testing.T) {
+	t.Parallel()
 	if !dockerIsConnected(t) {
 		t.SkipNow()
 	}
@@ -190,6 +193,7 @@ func TestDockerDriver_StartOpen_Wait(t *testing.T) {
 }
 
 func TestDockerDriver_Start_Wait(t *testing.T) {
+	t.Parallel()
 	task := &structs.Task{
 		Name: "redis-demo",
 		Config: map[string]interface{}{
@@ -223,6 +227,7 @@ func TestDockerDriver_Start_Wait(t *testing.T) {
 }
 
 func TestDockerDriver_Start_Wait_AllocDir(t *testing.T) {
+	t.Parallel()
 	// This test requires that the alloc dir be mounted into docker as a volume.
 	// Because this cannot happen when docker is run remotely, e.g. when running
 	// docker in a VM, we skip this when we detect Docker is being run remotely.
@@ -285,6 +290,7 @@ func TestDockerDriver_Start_Wait_AllocDir(t *testing.T) {
 }
 
 func TestDockerDriver_Start_Kill_Wait(t *testing.T) {
+	t.Parallel()
 	task := &structs.Task{
 		Name: "redis-demo",
 		Config: map[string]interface{}{
@@ -317,6 +323,7 @@ func TestDockerDriver_Start_Kill_Wait(t *testing.T) {
 }
 
 func TestDocker_StartN(t *testing.T) {
+	t.Parallel()
 	if !dockerIsConnected(t) {
 		t.SkipNow()
 	}
@@ -371,6 +378,7 @@ func TestDocker_StartN(t *testing.T) {
 }
 
 func TestDocker_StartNVersions(t *testing.T) {
+	t.Parallel()
 	if !dockerIsConnected(t) {
 		t.SkipNow()
 	}
@@ -428,6 +436,7 @@ func TestDocker_StartNVersions(t *testing.T) {
 }
 
 func TestDockerHostNet(t *testing.T) {
+	t.Parallel()
 	expected := "host"
 
 	task := &structs.Task{
@@ -457,6 +466,7 @@ func TestDockerHostNet(t *testing.T) {
 }
 
 func TestDockerLabels(t *testing.T) {
+	t.Parallel()
 	task := dockerTask()
 	task.Config["labels"] = []map[string]string{
 		map[string]string{
@@ -483,6 +493,7 @@ func TestDockerLabels(t *testing.T) {
 }
 
 func TestDockerDNS(t *testing.T) {
+	t.Parallel()
 	task := dockerTask()
 	task.Config["dns_servers"] = []string{"8.8.8.8", "8.8.4.4"}
 	task.Config["dns_search_domains"] = []string{"example.com", "example.org", "example.net"}
@@ -514,6 +525,7 @@ func inSlice(needle string, haystack []string) bool {
 }
 
 func TestDockerPortsNoMap(t *testing.T) {
+	t.Parallel()
 	task := dockerTask()
 
 	client, handle, cleanup := dockerSetup(t, task)
@@ -564,6 +576,7 @@ func TestDockerPortsNoMap(t *testing.T) {
 }
 
 func TestDockerPortsMapping(t *testing.T) {
+	t.Parallel()
 	task := dockerTask()
 	task.Config["port_map"] = []map[string]string{
 		map[string]string{

client/driver/driver_test.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/hashicorp/nomad/client/allocdir"
 	"github.com/hashicorp/nomad/client/config"
+	"github.com/hashicorp/nomad/helper/testtask"
 	"github.com/hashicorp/nomad/nomad/structs"
 )
 
@@ -30,6 +31,12 @@ func init() {
 	rand.Seed(49875)
 }
 
+func TestMain(m *testing.M) {
+	if !testtask.Run() {
+		os.Exit(m.Run())
+	}
+}
+
 func testLogger() *log.Logger {
 	return log.New(os.Stderr, "", log.LstdFlags)
 }
@@ -54,6 +61,7 @@ func testDriverExecContext(task *structs.Task, driverCtx *DriverContext) *ExecCo
 }
 
 func TestDriver_TaskEnvironmentVariables(t *testing.T) {
+	t.Parallel()
 	ctx := &ExecContext{}
 	task := &structs.Task{
 		Env: map[string]string{
@@ -101,6 +109,7 @@ func TestDriver_TaskEnvironmentVariables(t *testing.T) {
 }
 
 func TestMapMergeStrInt(t *testing.T) {
+	t.Parallel()
 	a := map[string]int{
 		"cakes":   5,
 		"cookies": 3,
@@ -125,6 +134,7 @@ func TestMapMergeStrInt(t *testing.T) {
 }
 
 func TestMapMergeStrStr(t *testing.T) {
+	t.Parallel()
 	a := map[string]string{
 		"cake":   "chocolate",
 		"cookie": "caramel",

client/driver/exec_test.go

@@ -16,6 +16,7 @@ import (
 )
 
 func TestExecDriver_Fingerprint(t *testing.T) {
+	t.Parallel()
 	ctestutils.ExecCompatible(t)
 	d := NewExecDriver(testDriverContext(""))
 	node := &structs.Node{
@@ -34,6 +35,7 @@ func TestExecDriver_Fingerprint(t *testing.T) {
 }
 
 func TestExecDriver_StartOpen_Wait(t *testing.T) {
+	t.Parallel()
 	ctestutils.ExecCompatible(t)
 	task := &structs.Task{
 		Name: "sleep",
@@ -68,6 +70,7 @@ func TestExecDriver_StartOpen_Wait(t *testing.T) {
 }
 
 func TestExecDriver_Start_Wait(t *testing.T) {
+	t.Parallel()
 	ctestutils.ExecCompatible(t)
 	task := &structs.Task{
 		Name: "sleep",
@@ -109,6 +112,7 @@ func TestExecDriver_Start_Wait(t *testing.T) {
 }
 
 func TestExecDriver_Start_Artifact_basic(t *testing.T) {
+	t.Parallel()
 	ctestutils.ExecCompatible(t)
 	file := "hi_linux_amd64"
 	checksum := "sha256:6f99b4c5184726e601ecb062500aeb9537862434dfe1898dbe5c68d9f50c179c"
@@ -153,6 +157,7 @@ func TestExecDriver_Start_Artifact_basic(t *testing.T) {
 }
 
 func TestExecDriver_Start_Artifact_expanded(t *testing.T) {
+	t.Parallel()
 	ctestutils.ExecCompatible(t)
 	file := "hi_linux_amd64"
 
@@ -199,6 +204,7 @@ func TestExecDriver_Start_Artifact_expanded(t *testing.T) {
 	}
 }
 func TestExecDriver_Start_Wait_AllocDir(t *testing.T) {
+	t.Parallel()
 	ctestutils.ExecCompatible(t)
 
 	exp := []byte{'w', 'i', 'n'}
@@ -251,6 +257,7 @@ func TestExecDriver_Start_Wait_AllocDir(t *testing.T) {
 }
 
 func TestExecDriver_Start_Kill_Wait(t *testing.T) {
+	t.Parallel()
 	ctestutils.ExecCompatible(t)
 	task := &structs.Task{
 		Name: "sleep",

client/driver/executor/exec.go

@@ -24,7 +24,6 @@ import (
 	"fmt"
 	"os/exec"
 	"path/filepath"
-	"strings"
 
 	"github.com/hashicorp/nomad/client/allocdir"
 	"github.com/hashicorp/nomad/nomad/structs"
@@ -34,11 +33,6 @@ import (
 
 var errNoResources = fmt.Errorf("No resources are associated with this task")
 
-// If testModeEnvVar is set in a process's environment variables, the
-// LinuxExecutor will detect it and inject the current binary into the chroot.
-// This enables using the test binary in tests to provide portability.
-var testModeEnvVar = "NOMAD_EXECUTOR_TEST_ONLY_13871827980214"
-
 // Executor is an interface that any platform- or capability-specific exec
 // wrapper must implement. You should not need to implement a Java executor.
 // Rather, you would implement a cgroups executor that the Java driver will use.
@@ -112,18 +106,3 @@ func OpenId(id string) (Executor, error) {
 	}
 	return executor, nil
 }
-
-// isTest returns whether the cmd is a test binary.
-func isTest(cmd *exec.Cmd) bool {
-	if cmd == nil {
-		return false
-	}
-
-	for _, env := range cmd.Env {
-		if strings.HasPrefix(env, testModeEnvVar) {
-			return true
-		}
-	}
-
-	return false
-}

client/driver/executor/exec_basic_test.go

@@ -3,5 +3,6 @@ package executor
 import "testing"
 
 func TestExecutorBasic(t *testing.T) {
+	t.Parallel()
 	testExecutor(t, NewBasicExecutor, nil)
 }

client/driver/executor/exec_linux.go

@@ -252,13 +252,6 @@ func (e *LinuxExecutor) ConfigureTaskDir(taskName string, alloc *allocdir.AllocD
 		return err
 	}
 
-	// Embed ourselves if this is a test. This needs to be done so the test
-	// binary is inside the chroot.
-	if isTest(&e.cmd) {
-		bin := e.cmd.Args[0]
-		alloc.Embed(taskName, map[string]string{bin: bin})
-	}
-
 	if err := alloc.Embed(taskName, chrootEnv); err != nil {
 		return err
 	}

client/driver/executor/exec_linux_test.go

@@ -4,8 +4,15 @@ import (
 	"testing"
 
 	ctestutil "github.com/hashicorp/nomad/client/testutil"
+	"github.com/hashicorp/nomad/helper/testtask"
 )
 
+func init() {
+	// Add test binary to chroot during test run.
+	chrootEnv[testtask.Path()] = testtask.Path()
+}
+
 func TestExecutorLinux(t *testing.T) {
+	t.Parallel()
 	testExecutor(t, NewLinuxExecutor, ctestutil.ExecCompatible)
 }