map.put("boost1", 1);
        map.put("boost2", 2);
        assertTrue(12.0f == docBoostMatcher.getValue(map));
    }

    @Test
    public void test_getValue_floatReturn() {
        final DocBoostMatcher docBoostMatcher = new DocBoostMatcher();
        docBoostMatcher.setBoostExpression("1.5f");

        final Map<String, Object> map = new HashMap<String, Object>();