test (machine) : add an interface for vsock interaction

Signed-off-by: Rohan Kumar <rohaan@redhat.com>

Author: rohanKanojia

pkg/crc/machine/client.go

@@ -34,26 +34,28 @@ type client struct {
 	debug          bool
 	config         crcConfig.Storage
 	virtualMachine VirtualMachine
+	vSockClient    AbstractVSock
 
 	diskDetails *memoize.Memoizer
 	ramDetails  *memoize.Memoizer
 }
 
 func NewClient(name string, debug bool, config crcConfig.Storage) Client {
-	return newClientWithVirtualMachine(name, debug, config, nil)
+	return newClientWithVirtualMachineAndVSock(name, debug, config, nil, &VSock{})
 }
 
-// newClientWithVirtualMachine creates a Client instance with a overridden VirtualMachine implementation.
+// newClientWithVirtualMachineAndVSock creates a Client instance with an overridden VirtualMachine and AbstractVSock implementation.
 // It would not create a new VirtualMachine object. This method is primarily created for usage in tests so
-// that we can pass a fake VirtualMachine implementation.
-func newClientWithVirtualMachine(name string, debug bool, config crcConfig.Storage, vm VirtualMachine) Client {
+// that we can pass a fake VirtualMachine and AbstractVSock implementation.
+func newClientWithVirtualMachineAndVSock(name string, debug bool, config crcConfig.Storage, vm VirtualMachine, vSock AbstractVSock) Client {
 	return &client{
 		name:           name,
 		debug:          debug,
 		config:         config,
 		diskDetails:    memoize.NewMemoizer(time.Minute, 5*time.Minute),
 		ramDetails:     memoize.NewMemoizer(30*time.Second, 2*time.Minute),
 		virtualMachine: vm,
+		vSockClient:    vSock,
 	}
 }
 

pkg/crc/machine/delete.go

@@ -22,7 +22,7 @@ func (client *client) Delete() error {
 
 	// In case usermode networking make sure all the port bind on host should be released
 	if client.useVSock() {
-		if err := unexposePorts(); err != nil {
+		if err := client.vSockClient.UnExposePorts(); err != nil {
 			return err
 		}
 	}

pkg/crc/machine/fakemachine/vsock.go

@@ -0,0 +1,23 @@
+package fakemachine
+
+import crcPreset "github.com/crc-org/crc/v2/pkg/crc/preset"
+
+type FakeVSock struct {
+	PortsExposed bool
+}
+
+func (v *FakeVSock) ExposePorts(_ crcPreset.Preset, _, _ uint) error {
+	v.PortsExposed = true
+	return nil
+}
+
+func (v *FakeVSock) UnExposePorts() error {
+	v.PortsExposed = false
+	return nil
+}
+
+func NewFakeVSock() *FakeVSock {
+	return &FakeVSock{
+		PortsExposed: false,
+	}
+}

pkg/crc/machine/start.go

@@ -368,7 +368,7 @@ func (client *client) Start(ctx context.Context, startConfig types.StartConfig)
 	logging.Infof("Starting CRC VM for %s %s...", startConfig.Preset, vm.Bundle().GetVersion())
 
 	if client.useVSock() {
-		if err := exposePorts(startConfig.Preset, startConfig.IngressHTTPPort, startConfig.IngressHTTPSPort); err != nil {
+		if err := client.vSockClient.ExposePorts(startConfig.Preset, startConfig.IngressHTTPPort, startConfig.IngressHTTPSPort); err != nil {
 			return nil, err
 		}
 	}

pkg/crc/machine/stop.go

@@ -45,7 +45,7 @@ func (client *client) Stop() (state.State, error) {
 	}
 	// In case usermode networking make sure all the port bind on host should be released
 	if client.useVSock() {
-		return status, unexposePorts()
+		return status, client.vSockClient.UnExposePorts()
 	}
 	return status, nil
 }

pkg/crc/machine/stop_test.go

@@ -20,7 +20,8 @@ func TestStop_WhenVMRunning_ThenShouldStopVirtualMachine(t *testing.T) {
 	_, err := crcConfigStorage.Set(crcConfig.NetworkMode, "true")
 	assert.NoError(t, err)
 	virtualMachine := fakemachine.NewFakeVirtualMachine(false, false)
-	client := newClientWithVirtualMachine("fake-virtual-machine", false, crcConfigStorage, virtualMachine)
+	fakeVSock := fakemachine.NewFakeVSock()
+	client := newClientWithVirtualMachineAndVSock("fake-virtual-machine", false, crcConfigStorage, virtualMachine, fakeVSock)
 
 	// When
 	clusterState, stopErr := client.Stop()
@@ -31,6 +32,7 @@ func TestStop_WhenVMRunning_ThenShouldStopVirtualMachine(t *testing.T) {
 	assert.Equal(t, virtualMachine.IsStopped, true)
 	assert.Equal(t, virtualMachine.FakeSSHClient.LastExecutedCommand, "sudo -- sh -c 'crictl stop $(crictl ps -q)'")
 	assert.Equal(t, virtualMachine.FakeSSHClient.IsSSHClientClosed, true)
+	assert.Equal(t, fakeVSock.PortsExposed, false)
 }
 
 func TestStop_WhenStopVmFailed_ThenErrorThrown(t *testing.T) {
@@ -41,7 +43,8 @@ func TestStop_WhenStopVmFailed_ThenErrorThrown(t *testing.T) {
 	_, err := crcConfigStorage.Set(crcConfig.NetworkMode, "true")
 	assert.NoError(t, err)
 	virtualMachine := fakemachine.NewFakeVirtualMachine(true, false)
-	client := newClientWithVirtualMachine("fake-virtual-machine", false, crcConfigStorage, virtualMachine)
+	fakeVSock := fakemachine.NewFakeVSock()
+	client := newClientWithVirtualMachineAndVSock("fake-virtual-machine", false, crcConfigStorage, virtualMachine, fakeVSock)
 
 	// When
 	_, stopErr := client.Stop()
@@ -60,7 +63,8 @@ func TestStop_WhenVMAlreadyStopped_ThenThrowError(t *testing.T) {
 	virtualMachine := fakemachine.NewFakeVirtualMachine(false, false)
 	err = virtualMachine.Stop()
 	assert.NoError(t, err)
-	client := newClientWithVirtualMachine("fake-virtual-machine", false, crcConfigStorage, virtualMachine)
+	fakeVSock := fakemachine.NewFakeVSock()
+	client := newClientWithVirtualMachineAndVSock("fake-virtual-machine", false, crcConfigStorage, virtualMachine, fakeVSock)
 
 	// When
 	clusterState, stopErr := client.Stop()

pkg/crc/machine/vsock.go

@@ -16,7 +16,14 @@ import (
 	"github.com/pkg/errors"
 )
 
-func exposePorts(preset crcPreset.Preset, ingressHTTPPort, ingressHTTPSPort uint) error {
+type AbstractVSock interface {
+	ExposePorts(preset crcPreset.Preset, ingressHTTPPort, ingressHTTPSPort uint) error
+	UnExposePorts() error
+}
+
+type VSock struct{}
+
+func (v *VSock) ExposePorts(preset crcPreset.Preset, ingressHTTPPort, ingressHTTPSPort uint) error {
 	portsToExpose := vsockPorts(preset, ingressHTTPPort, ingressHTTPSPort)
 	daemonClient := daemonclient.New()
 	alreadyOpenedPorts, err := listOpenPorts(daemonClient)
@@ -47,7 +54,7 @@ func isOpened(exposed []types.ExposeRequest, port types.ExposeRequest) bool {
 	return false
 }
 
-func unexposePorts() error {
+func (v *VSock) UnExposePorts() error {
 	var mErr crcErrors.MultiError
 	daemonClient := daemonclient.New()
 	alreadyOpenedPorts, err := listOpenPorts(daemonClient)