kata-monitor: drop unused functions

Drop the functions we are not using anymore.
Update the tests too.

Signed-off-by: Francesco Giudici <fgiudici@redhat.com>

src/runtime/pkg/kata-monitor/sandbox_cache.go

@@ -20,12 +20,6 @@ type sandboxCache struct {
 	sandboxes map[string]sandboxKubeData
 }
 
-func (sc *sandboxCache) getSandboxes() map[string]sandboxKubeData {
-	sc.Lock()
-	defer sc.Unlock()
-	return sc.sandboxes
-}
-
 func (sc *sandboxCache) getSandboxList() []string {
 	sc.Lock()
 	defer sc.Unlock()
@@ -68,9 +62,3 @@ func (sc *sandboxCache) setMetadata(id string, value sandboxKubeData) {
 
 	sc.sandboxes[id] = value
 }
-
-func (sc *sandboxCache) set(sandboxes map[string]sandboxKubeData) {
-	sc.Lock()
-	defer sc.Unlock()
-	sc.sandboxes = sandboxes
-}

src/runtime/pkg/kata-monitor/sandbox_cache_test.go

@@ -16,21 +16,16 @@ func TestSandboxCache(t *testing.T) {
 	assert := assert.New(t)
 	sc := &sandboxCache{
 		Mutex:     &sync.Mutex{},
-		sandboxes: make(map[string]sandboxKubeData),
+		sandboxes: map[string]sandboxKubeData{"111": {"1-2-3", "test-name", "test-namespace"}},
 	}
 
-	scMap := map[string]sandboxKubeData{"111": {"1-2-3", "test-name", "test-namespace"}}
+	assert.Equal(1, len(sc.getSandboxList()))
-
-	sc.set(scMap)
-
-	scMap = sc.getSandboxes()
-	assert.Equal(1, len(scMap))
 
 	// put new item
 	id := "new-id"
 	b := sc.putIfNotExists(id, sandboxKubeData{})
 	assert.Equal(true, b)
-	assert.Equal(2, len(scMap))
+	assert.Equal(2, len(sc.getSandboxList()))
 
 	// put key that alreay exists
 	b = sc.putIfNotExists(id, sandboxKubeData{})
@@ -38,9 +33,9 @@ func TestSandboxCache(t *testing.T) {
 
 	b = sc.deleteIfExists(id)
 	assert.Equal(true, b)
-	assert.Equal(1, len(scMap))
+	assert.Equal(1, len(sc.getSandboxList()))
 
 	b = sc.deleteIfExists(id)
 	assert.Equal(false, b)
-	assert.Equal(1, len(scMap))
+	assert.Equal(1, len(sc.getSandboxList()))
 }

src/runtime/pkg/kata-monitor/shim_client.go

@@ -10,8 +10,6 @@ import (
 	"io"
 	"net"
 	"net/http"
-	"os"
-	"path/filepath"
 	"time"
 
 	cdshim "github.com/containerd/containerd/runtime/v2/shim"
@@ -43,13 +41,6 @@ func getSandboxFS() string {
 	return shim.GetSandboxesStoragePath()
 }
 
-func checkSandboxFSExists(sandboxID string) bool {
-	sbsPath := filepath.Join(string(filepath.Separator), getSandboxFS(), sandboxID)
-	_, err := os.Stat(sbsPath)
-
-	return !os.IsNotExist(err)
-}
-
 // BuildShimClient builds and returns an http client for communicating with the provided sandbox
 func BuildShimClient(sandboxID string, timeout time.Duration) (*http.Client, error) {
 	return buildUnixSocketClient(shim.SocketAddress(sandboxID), timeout)