integration: don't create factories for each test case

We can do this only once.

Signed-off-by: Andrey Vagin <avagin@openvz.org>

integration/exec_test.go

@@ -204,9 +204,6 @@ func TestEnter(t *testing.T) {
 
 	config := newTemplateConfig(rootfs)
 
-	factory, err := libcontainer.New(root, libcontainer.Cgroupfs)
-	ok(t, err)
-
 	container, err := factory.Create("test", config)
 	ok(t, err)
 	defer container.Destroy()
@@ -294,9 +291,6 @@ func TestProcessEnv(t *testing.T) {
 
 	config := newTemplateConfig(rootfs)
 
-	factory, err := libcontainer.New(root, libcontainer.Cgroupfs)
-	ok(t, err)
-
 	container, err := factory.Create("test", config)
 	ok(t, err)
 	defer container.Destroy()
@@ -346,9 +340,6 @@ func TestProcessCaps(t *testing.T) {
 
 	config := newTemplateConfig(rootfs)
 
-	factory, err := libcontainer.New(root, libcontainer.Cgroupfs)
-	ok(t, err)
-
 	container, err := factory.Create("test", config)
 	ok(t, err)
 	defer container.Destroy()
@@ -427,15 +418,12 @@ func testFreeze(t *testing.T, systemd bool) {
 	defer remove(rootfs)
 
 	config := newTemplateConfig(rootfs)
-	cgm := libcontainer.Cgroupfs
+	f := factory
 	if systemd {
-		cgm = libcontainer.SystemdCgroups
+		f = systemdFactory
 	}
 
-	factory, err := libcontainer.New(root, cgm)
-	ok(t, err)
-
-	container, err := factory.Create("test", config)
+	container, err := f.Create("test", config)
 	ok(t, err)
 	defer container.Destroy()
 
@@ -539,11 +527,6 @@ func TestContainerState(t *testing.T) {
 		{Type: configs.NEWNET},
 	})
 
-	factory, err := libcontainer.New(root, libcontainer.Cgroupfs)
-	if err != nil {
-		t.Fatal(err)
-	}
-
 	container, err := factory.Create("test", config)
 	if err != nil {
 		t.Fatal(err)
@@ -595,11 +578,6 @@ func TestPassExtraFiles(t *testing.T) {
 
 	config := newTemplateConfig(rootfs)
 
-	factory, err := libcontainer.New(rootfs, libcontainer.Cgroupfs)
-	if err != nil {
-		t.Fatal(err)
-	}
-
 	container, err := factory.Create("test", config)
 	if err != nil {
 		t.Fatal(err)
@@ -686,11 +664,6 @@ func TestMountCmds(t *testing.T) {
 		},
 	})
 
-	factory, err := libcontainer.New(root, libcontainer.Cgroupfs)
-	if err != nil {
-		t.Fatal(err)
-	}
-
 	container, err := factory.Create("test", config)
 	if err != nil {
 		t.Fatal(err)
@@ -738,9 +711,6 @@ func TestSystemProperties(t *testing.T) {
 		"kernel.shmmni": "8192",
 	}
 
-	factory, err := libcontainer.New(root, libcontainer.Cgroupfs)
-	ok(t, err)
-
 	container, err := factory.Create("test", config)
 	ok(t, err)
 	defer container.Destroy()

integration/init_test.go

@@ -1,11 +1,13 @@
 package integration
 
 import (
-	"log"
 	"os"
 	"runtime"
+	"testing"
 
+	log "github.com/Sirupsen/logrus"
 	"github.com/docker/libcontainer"
+	"github.com/docker/libcontainer/cgroups/systemd"
 	_ "github.com/docker/libcontainer/nsenter"
 )
 
@@ -25,3 +27,34 @@ func init() {
 		log.Fatal(err)
 	}
 }
+
+var (
+	factory libcontainer.Factory
+	systemdFactory libcontainer.Factory
+)
+
+func TestMain(m *testing.M) {
+	var (
+		err error
+		ret int = 0
+	)
+
+	log.SetOutput(os.Stderr)
+	log.SetLevel(log.InfoLevel)
+
+	factory, err = libcontainer.New(".", libcontainer.Cgroupfs)
+	if err != nil {
+		log.Error(err)
+		os.Exit(1)
+	}
+	if systemd.UseSystemd() {
+		systemdFactory, err = libcontainer.New(".", libcontainer.SystemdCgroups)
+		if err != nil {
+			log.Error(err)
+			os.Exit(1)
+		}
+	}
+
+	ret = m.Run()
+	os.Exit(ret)
+}

integration/utils_test.go

@@ -79,19 +79,13 @@ func copyBusybox(dest string) error {
 }
 
 func newContainer(config *configs.Config) (libcontainer.Container, error) {
-	cgm := libcontainer.Cgroupfs
+	f := factory
+
 	if config.Cgroups != nil && config.Cgroups.Slice == "system.slice" {
-		cgm = libcontainer.SystemdCgroups
+		f = systemdFactory
 	}
 
-	factory, err := libcontainer.New(".",
-		libcontainer.InitArgs(os.Args[0], "init", "--"),
-		cgm,
-	)
-	if err != nil {
-		return nil, err
-	}
-	return factory.Create("testCT", config)
+	return f.Create("testCT", config)
 }
 
 // runContainer runs the container with the specific config and arguments