feat(http): paginate the index resource

Fix #2373

meilisearch-http/tests/index/get_index.rs

@@ -16,12 +16,11 @@ async fn create_and_get_index() {
 
     assert_eq!(code, 200);
     assert_eq!(response["uid"], "test");
-    assert_eq!(response["name"], "test");
     assert!(response.get("createdAt").is_some());
     assert!(response.get("updatedAt").is_some());
     assert_eq!(response["createdAt"], response["updatedAt"]);
     assert_eq!(response["primaryKey"], Value::Null);
-    assert_eq!(response.as_object().unwrap().len(), 5);
+    assert_eq!(response.as_object().unwrap().len(), 4);
 }
 
 #[actix_rt::test]
@@ -45,10 +44,10 @@ async fn error_get_unexisting_index() {
 #[actix_rt::test]
 async fn no_index_return_empty_list() {
     let server = Server::new().await;
-    let (response, code) = server.list_indexes().await;
+    let (response, code) = server.list_indexes(None, None).await;
     assert_eq!(code, 200);
-    assert!(response.is_array());
-    assert!(response.as_array().unwrap().is_empty());
+    assert!(response["results"].is_array());
+    assert!(response["results"].as_array().unwrap().is_empty());
 }
 
 #[actix_rt::test]
@@ -59,10 +58,10 @@ async fn list_multiple_indexes() {
 
     server.index("test").wait_task(1).await;
 
-    let (response, code) = server.list_indexes().await;
+    let (response, code) = server.list_indexes(None, None).await;
     assert_eq!(code, 200);
-    assert!(response.is_array());
-    let arr = response.as_array().unwrap();
+    assert!(response["results"].is_array());
+    let arr = response["results"].as_array().unwrap();
     assert_eq!(arr.len(), 2);
     assert!(arr
         .iter()
@@ -72,6 +71,119 @@ async fn list_multiple_indexes() {
         .any(|entry| entry["uid"] == "test1" && entry["primaryKey"] == "key"));
 }
 
+#[actix_rt::test]
+async fn get_and_paginate_indexes() {
+    let server = Server::new().await;
+    const NB_INDEXES: usize = 50;
+    for i in 0..NB_INDEXES {
+        server.index(&format!("test_{i:02}")).create(None).await;
+    }
+
+    server
+        .index(&format!("test_{NB_INDEXES}"))
+        .wait_task(NB_INDEXES as u64 - 1)
+        .await;
+
+    // basic
+    let (response, code) = server.list_indexes(None, None).await;
+    assert_eq!(code, 200);
+    assert_eq!(response["limit"], json!(20));
+    assert_eq!(response["offset"], json!(0));
+    assert_eq!(response["total"], json!(NB_INDEXES));
+    assert!(response["results"].is_array());
+    let arr = response["results"].as_array().unwrap();
+    assert_eq!(arr.len(), 20);
+    // ensuring we get all the indexes in the alphabetical order
+    assert!((0..20)
+        .map(|idx| format!("test_{idx:02}"))
+        .zip(arr)
+        .all(|(expected, entry)| entry["uid"] == expected));
+
+    // with an offset
+    let (response, code) = server.list_indexes(Some(15), None).await;
+    assert_eq!(code, 200);
+    assert_eq!(response["limit"], json!(20));
+    assert_eq!(response["offset"], json!(15));
+    assert_eq!(response["total"], json!(NB_INDEXES));
+    assert!(response["results"].is_array());
+    let arr = response["results"].as_array().unwrap();
+    assert_eq!(arr.len(), 20);
+    assert!((15..35)
+        .map(|idx| format!("test_{idx:02}"))
+        .zip(arr)
+        .all(|(expected, entry)| entry["uid"] == expected));
+
+    // with an offset and not enough elements
+    let (response, code) = server.list_indexes(Some(45), None).await;
+    assert_eq!(code, 200);
+    assert_eq!(response["limit"], json!(20));
+    assert_eq!(response["offset"], json!(45));
+    assert_eq!(response["total"], json!(NB_INDEXES));
+    assert!(response["results"].is_array());
+    let arr = response["results"].as_array().unwrap();
+    assert_eq!(arr.len(), 5);
+    assert!((45..50)
+        .map(|idx| format!("test_{idx:02}"))
+        .zip(arr)
+        .all(|(expected, entry)| entry["uid"] == expected));
+
+    // with a limit lower than the default
+    let (response, code) = server.list_indexes(None, Some(5)).await;
+    assert_eq!(code, 200);
+    assert_eq!(response["limit"], json!(5));
+    assert_eq!(response["offset"], json!(0));
+    assert_eq!(response["total"], json!(NB_INDEXES));
+    assert!(response["results"].is_array());
+    let arr = response["results"].as_array().unwrap();
+    assert_eq!(arr.len(), 5);
+    assert!((0..5)
+        .map(|idx| format!("test_{idx:02}"))
+        .zip(arr)
+        .all(|(expected, entry)| entry["uid"] == expected));
+
+    // with a limit higher than the default
+    let (response, code) = server.list_indexes(None, Some(40)).await;
+    assert_eq!(code, 200);
+    assert_eq!(response["limit"], json!(40));
+    assert_eq!(response["offset"], json!(0));
+    assert_eq!(response["total"], json!(NB_INDEXES));
+    assert!(response["results"].is_array());
+    let arr = response["results"].as_array().unwrap();
+    assert_eq!(arr.len(), 40);
+    assert!((0..40)
+        .map(|idx| format!("test_{idx:02}"))
+        .zip(arr)
+        .all(|(expected, entry)| entry["uid"] == expected));
+
+    // with a limit higher than the default
+    let (response, code) = server.list_indexes(None, Some(80)).await;
+    assert_eq!(code, 200);
+    assert_eq!(response["limit"], json!(80));
+    assert_eq!(response["offset"], json!(0));
+    assert_eq!(response["total"], json!(NB_INDEXES));
+    assert!(response["results"].is_array());
+    let arr = response["results"].as_array().unwrap();
+    assert_eq!(arr.len(), 50);
+    assert!((0..50)
+        .map(|idx| format!("test_{idx:02}"))
+        .zip(arr)
+        .all(|(expected, entry)| entry["uid"] == expected));
+
+    // with a limit and an offset
+    let (response, code) = server.list_indexes(Some(20), Some(10)).await;
+    assert_eq!(code, 200);
+    assert_eq!(response["limit"], json!(10));
+    assert_eq!(response["offset"], json!(20));
+    assert_eq!(response["total"], json!(NB_INDEXES));
+    assert!(response["results"].is_array());
+    let arr = response["results"].as_array().unwrap();
+    assert_eq!(arr.len(), 10);
+    assert!((20..30)
+        .map(|idx| format!("test_{idx:02}"))
+        .zip(arr)
+        .all(|(expected, entry)| entry["uid"] == expected));
+}
+
 #[actix_rt::test]
 async fn get_invalid_index_uid() {
     let server = Server::new().await;