item.setEmptySource(emptySource);

        Map<String, Object> result = item.toEmptyMap();
        assertEquals(emptySource, result);
    }

    @Test
    public void testUserBoostMinimum() {
        // Test that user boost is at least 1
        String[] text = { "test" };
        String[][] readings = { { "test" } };

        // Test with boost less than 1