assertEquals(userBoost, ((Number) source.get(FieldNames.USER_BOOST)).floatValue(), 0.001f);
        assertNotNull(source.get(FieldNames.TIMESTAMP));
    }

    @Test
    public void testFromSource_requiresAllFields() {
        // Create a complete source map with all required fields
        Map<String, Object> source = new HashMap<>();
        source.put(FieldNames.TEXT, "test text");