add intergration test for disabled typon on word

milli/tests/search/typo_tolerance.rs

@@ -1,5 +1,10 @@
-use milli::update::{IndexerConfig, Settings};
-use milli::{Criterion, Search};
+use std::collections::BTreeSet;
+
+use heed::EnvOpenOptions;
+use milli::update::{IndexDocuments, IndexDocumentsConfig, IndexerConfig, Settings};
+use milli::{Criterion, Index, Search};
+use serde_json::json;
+use tempfile::tempdir;
 use Criterion::*;
 
 #[test]
@@ -93,3 +98,75 @@ fn test_typo_tolerance_two_typo() {
     let result = search.execute().unwrap();
     assert_eq!(result.documents_ids.len(), 1);
 }
+
+#[test]
+fn test_typo_disabled_on_word() {
+    let tmp = tempdir().unwrap();
+    let mut options = EnvOpenOptions::new();
+    options.map_size(4096 * 100);
+    let index = Index::new(options, tmp.path()).unwrap();
+
+    let documents = json!([
+        {
+            "id": 1usize,
+            "data": "zealand",
+        },
+        {
+            "id": 2usize,
+            "data": "zearand",
+        },
+    ]);
+
+    let mut writer = std::io::Cursor::new(Vec::new());
+    let mut builder = milli::documents::DocumentBatchBuilder::new(&mut writer).unwrap();
+    let documents = serde_json::to_vec(&documents).unwrap();
+    builder.extend_from_json(std::io::Cursor::new(documents)).unwrap();
+    builder.finish().unwrap();
+
+    writer.set_position(0);
+
+    let documents = milli::documents::DocumentBatchReader::from_reader(writer).unwrap();
+
+    let mut txn = index.write_txn().unwrap();
+    let config = IndexerConfig::default();
+    let indexing_config = IndexDocumentsConfig::default();
+    let mut builder = IndexDocuments::new(&mut txn, &index, &config, indexing_config, |_| ());
+
+    builder.add_documents(documents).unwrap();
+
+    builder.execute().unwrap();
+    txn.commit().unwrap();
+
+    // basic typo search with default typo settings
+    {
+        let txn = index.read_txn().unwrap();
+
+        let mut search = Search::new(&txn, &index);
+        search.query("zealand");
+        search.limit(10);
+        search.authorize_typos(true);
+        search.optional_words(true);
+
+        let result = search.execute().unwrap();
+        assert_eq!(result.documents_ids.len(), 2);
+    }
+
+    let mut txn = index.write_txn().unwrap();
+
+    let config = IndexerConfig::default();
+    let mut builder = Settings::new(&mut txn, &index, &config);
+    let mut exact_words = BTreeSet::new();
+    // sealand doesn't allow typos anymore
+    exact_words.insert("zealand".to_string());
+    builder.set_exact_words(exact_words);
+    builder.execute(|_| ()).unwrap();
+
+    let mut search = Search::new(&txn, &index);
+    search.query("zealand");
+    search.limit(10);
+    search.authorize_typos(true);
+    search.optional_words(true);
+
+    let result = search.execute().unwrap();
+    assert_eq!(result.documents_ids.len(), 1);
+}