Add "position" part of the attribute ranking rule

milli/src/search/new/tests/attribute_fid.rs

@@ -95,7 +95,7 @@ fn create_index() -> TempIndex {
 }
 
 #[test]
-fn test_attributes_simple() {
+fn test_attribute_fid_simple() {
     let index = create_index();
 
     let txn = index.read_txn().unwrap();

milli/src/search/new/tests/attribute_position.rs

@@ -0,0 +1,52 @@
+use crate::{index::tests::TempIndex, Criterion, Search, SearchResult, TermsMatchingStrategy};
+
+fn create_index() -> TempIndex {
+    let index = TempIndex::new();
+
+    index
+        .update_settings(|s| {
+            s.set_primary_key("id".to_owned());
+            s.set_searchable_fields(vec!["text".to_owned()]);
+            s.set_criteria(vec![Criterion::Attribute]);
+        })
+        .unwrap();
+
+    index
+        .add_documents(documents!([
+            {
+                "id": 0,
+                "text": "do you know about the quick and talented brown fox",
+            },
+            {
+                "id": 1,
+                "text": "do you know about the quick brown fox",
+            },
+            {
+                "id": 2,
+                "text": "the quick and talented brown fox",
+            },
+            {
+                "id": 3,
+                "text": "fox brown quick the",
+            },
+            {
+                "id": 4,
+                "text": "the quick brown fox",
+            },
+        ]))
+        .unwrap();
+    index
+}
+
+#[test]
+fn test_attribute_fid_simple() {
+    let index = create_index();
+
+    let txn = index.read_txn().unwrap();
+
+    let mut s = Search::new(&txn, &index);
+    s.terms_matching_strategy(TermsMatchingStrategy::All);
+    s.query("the quick brown fox");
+    let SearchResult { documents_ids, .. } = s.execute().unwrap();
+    insta::assert_snapshot!(format!("{documents_ids:?}"), @"[3, 4, 2, 1, 0]");
+}

milli/src/search/new/tests/mod.rs

@@ -1,4 +1,5 @@
-pub mod attribute;
+pub mod attribute_fid;
+pub mod attribute_position;
 pub mod distinct;
 #[cfg(feature = "default")]
 pub mod language;