PrunedTag tagWithNulls = new PrunedTag("div");
        PrunedTag anotherTagWithNulls = new PrunedTag("div");
        assertTrue(tagWithNulls.equals(anotherTagWithNulls));
    }

    public void test_parse_complexCombinations() {
        // Test complex parsing combinations
        PrunedTag[] tags = PrunedTag.parse("div[data-toggle=modal].modal#main-modal");
        assertEquals(1, tags.length);
        PrunedTag tag = tags[0];