// NewInputs should be same as inputs for id=0
        assertSame(inputs, item.getNewInputs());
        assertEquals("result", item.getNewOutput());
    }

    public void test_constructor_withNewlineInOutput() {
        // Test newline replacement in output
        String[] inputs = { "input" };
        CharMappingItem item = new CharMappingItem(1L, inputs, "line1\nline2");