PrunedTag tag = new PrunedTag("div");

        MockNode divNode = new MockNode("div");
        assertTrue(tag.matches(divNode));

        MockNode spanNode = new MockNode("span");
        assertFalse(tag.matches(spanNode));

        // Case insensitive test
        MockNode divUpperNode = new MockNode("DIV");
        assertTrue(tag.matches(divUpperNode));
    }