test: add ut for PortUnion.Ports()

extras/utils/portunion_test.go

@@ -2,6 +2,7 @@ package utils
 
 import (
 	"reflect"
+	"slices"
 	"testing"
 )
 
@@ -90,3 +91,50 @@ func TestParsePortUnion(t *testing.T) {
 		})
 	}
 }
+
+func TestPortUnion_Ports(t *testing.T) {
+	tests := []struct {
+		name string
+		pu   PortUnion
+		want []uint16
+	}{
+		{
+			name: "single port",
+			pu:   PortUnion{{1234, 1234}},
+			want: []uint16{1234},
+		},
+		{
+			name: "multiple ports",
+			pu:   PortUnion{{1234, 1236}},
+			want: []uint16{1234, 1235, 1236},
+		},
+		{
+			name: "multiple ports and ranges",
+			pu:   PortUnion{{1234, 1236}, {5678, 5680}, {9000, 9002}},
+			want: []uint16{1234, 1235, 1236, 5678, 5679, 5680, 9000, 9001, 9002},
+		},
+		{
+			name: "single port 65535",
+			pu:   PortUnion{{65535, 65535}},
+			want: []uint16{65535},
+		},
+		{
+			name: "port range with 65535",
+			pu:   PortUnion{{65530, 65535}},
+			want: []uint16{65530, 65531, 65532, 65533, 65534, 65535},
+		},
+		{
+			name: "multiple ports and ranges with 65535",
+			pu:   PortUnion{{65530, 65535}, {1234, 1236}},
+			want: []uint16{65530, 65531, 65532, 65533, 65534, 65535, 1234, 1235, 1236},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := tt.pu.Ports(); !slices.Equal(got, tt.want) {
+				t.Errorf("PortUnion.Ports() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}