Fix PR comments

meilisearch-http/tests/documents/add_documents.rs

@@ -997,3 +997,32 @@ async fn error_add_documents_payload_size() {
     assert_eq!(response, expected_response);
     assert_eq!(code, 413);
 }
+
+#[actix_rt::test]
+async fn error_primary_key_inference() {
+    let server = Server::new().await;
+    let index = server.index("test");
+
+    let documents = json!([
+        {
+            "title": "11",
+            "desc": "foobar"
+        }
+    ]);
+
+    index.add_documents(documents, None).await;
+    index.wait_update_id(0).await;
+    let (response, code) = index.get_update(0).await;
+    assert_eq!(code, 200);
+    assert_eq!(response["status"], "failed");
+    assert_eq!(
+        response["message"],
+        r#"The primary key inference process failed because the engine did not find any fields containing `id` substring in their name. If your document identifier does not contain any `id` substring, you can set the primary key of the index."#
+    );
+    assert_eq!(response["code"], "primary_key_inference_failed");
+    assert_eq!(response["type"], "invalid_request");
+    assert_eq!(
+        response["link"],
+        "https://docs.meilisearch.com/errors#primary_key_inference_failed"
+    );
+}