Add tests for krewutils

Signed-off-by: Mehdi Moussaif <m.moussaif42@gmail.com>

core/cautils/krewutils_test.go

@@ -0,0 +1,66 @@
+package cautils
+
+import (
+	"os"
+	"testing"
+)
+
+func TestIsKrewPlugin(t *testing.T) {
+	tests := []struct {
+		name string
+		arg  string
+		want bool
+	}{
+		{
+			name: "krew plugin",
+			arg:  "kubectl-kubescape",
+			want: true,
+		},
+		{
+			name: "not krew plugin",
+			arg:  "kubescape",
+			want: false,
+		},
+		{
+			name: "empty",
+			arg:  "",
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			os.Args = []string{tt.arg}
+			result := IsKrewPlugin()
+			if result != tt.want {
+				t.Errorf("IsKrewPlugin() = %v, want %v", result, tt.want)
+			}
+		})
+	}
+}
+
+func TestExecName(t *testing.T) {
+	tests := []struct {
+		name string
+		arg  string
+		want string
+	}{
+		{
+			name: "krew plugin",
+			arg:  "kubectl-kubescape",
+			want: "kubectl kubescape",
+		},
+		{
+			name: "not krew plugin",
+			arg:  "kubescape",
+			want: "kubescape",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			os.Args = []string{tt.arg}
+			if got := ExecName(); got != tt.want {
+				t.Errorf("ExecName() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}