Added Test Suite for the cmd packages

Wrote new tests for the following packages
- operator
- patch
- scan

Also fixed potential crash in the RunE function of the image subcommand
in the scan package.

Signed-off-by: VaibhavMalik4187 <vaibhavmalik2018@gmail.com>

cmd/patch/patch.go

@@ -35,7 +35,7 @@ func GetPatchCmd(ks meta.IKubescape) *cobra.Command {
 
 	patchCmd := &cobra.Command{
 		Use:     "patch --image <image>:<tag> [flags]",
-		Short:   "Patch container images with vulnerabilities ",
+		Short:   "Patch container images with vulnerabilities",
 		Long:    `Patch command is for automatically patching images with vulnerabilities.`,
 		Example: patchCmdExamples,
 		Args: func(cmd *cobra.Command, args []string) error {

cmd/patch/patch_test.go

@@ -0,0 +1,36 @@
+package patch
+
+import (
+	"testing"
+
+	"github.com/kubescape/kubescape/v3/core/mocks"
+	"github.com/spf13/cobra"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetPatchCmd(t *testing.T) {
+	// Create a mock Kubescape interface
+	mockKubescape := &mocks.MockIKubescape{}
+
+	cmd := GetPatchCmd(mockKubescape)
+
+	// Verify the command name and short description
+	assert.Equal(t, "patch --image <image>:<tag> [flags]", cmd.Use)
+	assert.Equal(t, "Patch container images with vulnerabilities", cmd.Short)
+	assert.Equal(t, "Patch command is for automatically patching images with vulnerabilities.", cmd.Long)
+	assert.Equal(t, patchCmdExamples, cmd.Example)
+
+	err := cmd.Args(&cobra.Command{}, []string{})
+	assert.Nil(t, err)
+
+	err = cmd.Args(&cobra.Command{}, []string{"test"})
+	expectedErrorMessage := "the command takes no arguments"
+	assert.Equal(t, expectedErrorMessage, err.Error())
+
+	err = cmd.RunE(&cobra.Command{}, []string{})
+	expectedErrorMessage = "image tag is required"
+	assert.Equal(t, expectedErrorMessage, err.Error())
+
+	err = cmd.RunE(&cobra.Command{}, []string{"patch", "--image", "docker.io/library/nginx:1.22"})
+	assert.Equal(t, expectedErrorMessage, err.Error())
+}