Shinsuke Sugaya <******@****.***> 1773442886 +0900

        assertEquals(2.5f, doc.get("boost"));
        assertNotNull(doc.get("doc_id"));
    }

    // Test updateDocument without boost
    @Test
    public void test_updateDocument_withoutBoost() {
        final Map<String, Object> doc = new HashMap<>();
        doc.put("url", "http://example.com");

        indexUpdater.updateDocument(doc);

        assertNull(doc.get("boost"));