devices: add some test cases

Add test cases for device manager reworks.

Signed-off-by: Wei Zhang <zhangwei555@huawei.com>

virtcontainers/device/manager/manager_test.go

@@ -201,3 +201,41 @@ func TestAttachBlockDevice(t *testing.T) {
 	err = device.Detach(devReceiver)
 	assert.Nil(t, err)
 }
+
+func TestAttachDetachDevice(t *testing.T) {
+	dm := NewDeviceManager(VirtioSCSI, nil)
+
+	path := "/dev/hda"
+	deviceInfo := config.DeviceInfo{
+		HostPath:      path,
+		ContainerPath: path,
+		DevType:       "b",
+	}
+
+	devReceiver := &api.MockDeviceReceiver{}
+	device, err := dm.NewDevice(deviceInfo)
+	assert.Nil(t, err)
+
+	// attach device
+	err = dm.AttachDevice(device.DeviceID(), devReceiver)
+	assert.Nil(t, err)
+	// attach device again(twice)
+	err = dm.AttachDevice(device.DeviceID(), devReceiver)
+	assert.NotNil(t, err)
+	assert.Equal(t, err, ErrDeviceAttached, "attach device twice should report error %q", ErrDeviceAttached)
+
+	attached := dm.IsDeviceAttached(device.DeviceID())
+	assert.True(t, attached)
+
+	// detach device
+	err = dm.DetachDevice(device.DeviceID(), devReceiver)
+	assert.Nil(t, err)
+	// detach device again(twice)
+	err = dm.DetachDevice(device.DeviceID(), devReceiver)
+	assert.NotNil(t, err)
+	assert.Equal(t, err, ErrDeviceNotAttached, "attach device twice should report error %q", ErrDeviceNotAttached)
+
+	attached = dm.IsDeviceAttached(device.DeviceID())
+	assert.False(t, attached)
+
+}

virtcontainers/kata_agent_test.go

@@ -25,6 +25,9 @@ import (
 	"google.golang.org/grpc"
 
 	pb "github.com/kata-containers/agent/protocols/grpc"
+	"github.com/kata-containers/runtime/virtcontainers/device/api"
+	"github.com/kata-containers/runtime/virtcontainers/device/config"
+	"github.com/kata-containers/runtime/virtcontainers/device/drivers"
 	"github.com/kata-containers/runtime/virtcontainers/device/manager"
 	vcAnnotations "github.com/kata-containers/runtime/virtcontainers/pkg/annotations"
 	"github.com/kata-containers/runtime/virtcontainers/pkg/mock"
@@ -32,8 +35,8 @@ import (
 
 var (
 	testKataProxyURLTempl  = "unix://%s/kata-proxy-test.sock"
-	//testBlockDeviceCtrPath = "testBlockDeviceCtrPath"
+	testBlockDeviceCtrPath = "testBlockDeviceCtrPath"
-	//testPCIAddr = "04/02"
+	testPCIAddr            = "04/02"
 )
 
 func proxyHandlerDiscard(c net.Conn) {
@@ -456,9 +459,29 @@ func TestAppendDevicesEmptyContainerDeviceList(t *testing.T) {
 		updatedDevList, expected)
 }
 
-/*func TestAppendDevices(t *testing.T) {
+func TestAppendDevices(t *testing.T) {
 	k := kataAgent{}
 
+	id := "test-append-block"
+	ctrDevices := []api.Device{
+		&drivers.BlockDevice{
+			ID: id,
+			BlockDrive: &config.BlockDrive{
+				PCIAddr: testPCIAddr,
+			},
+		},
+	}
+
+	c := &Container{
+		sandbox: &Sandbox{
+			devManager: manager.NewDeviceManager("virtio-scsi", ctrDevices),
+		},
+	}
+	c.devices = append(c.devices, ContainerDevice{
+		ID:            id,
+		ContainerPath: testBlockDeviceCtrPath,
+	})
+
 	devList := []*pb.Device{}
 	expected := []*pb.Device{
 		{
@@ -467,23 +490,11 @@ func TestAppendDevicesEmptyContainerDeviceList(t *testing.T) {
 			Id:            testPCIAddr,
 		},
 	}
-	ctrDevices := []api.Device{
+	updatedDevList := k.appendDevices(devList, c)
-		&drivers.BlockDevice{
-			DeviceInfo: &config.DeviceInfo{
-				HostPath: testBlockDeviceCtrPath,
-			},
-			BlockDrive: &config.BlockDrive{
-				File:    testBlockDeviceCtrPath,
-				PCIAddr: testPCIAddr,
-			},
-		},
-	}
-
-	updatedDevList := k.appendDevices(devList, ctrDevices)
 	assert.True(t, reflect.DeepEqual(updatedDevList, expected),
 		"Device lists didn't match: got %+v, expecting %+v",
 		updatedDevList, expected)
-}*/
+}
 
 func TestConstraintGRPCSpec(t *testing.T) {
 	assert := assert.New(t)