story-kit: merge 104_story_test_coverage_io_search_rs_to_95

server/src/io/search.rs

@@ -161,4 +161,58 @@ mod tests {
         assert_eq!(results.len(), 1);
         assert_eq!(results[0].path, "kept.txt");
     }
+
+    #[tokio::test]
+    async fn search_files_with_session_state() {
+        let dir = setup_project(&[("found.txt", "target_text")]);
+        let state = SessionState::default();
+        *state.project_root.lock().unwrap() = Some(dir.path().to_path_buf());
+
+        let results = search_files("target_text".to_string(), &state).await.unwrap();
+
+        assert_eq!(results.len(), 1);
+        assert_eq!(results[0].path, "found.txt");
+    }
+
+    #[tokio::test]
+    async fn search_files_errors_without_project_root() {
+        let state = SessionState::default();
+
+        let result = search_files("query".to_string(), &state).await;
+
+        assert!(result.is_err());
+        assert!(result.unwrap_err().contains("No project"));
+    }
+
+    #[test]
+    fn search_result_serializes_and_debugs() {
+        let sr = SearchResult {
+            path: "src/main.rs".to_string(),
+            matches: 3,
+        };
+        let json = serde_json::to_string(&sr).unwrap();
+        assert!(json.contains("src/main.rs"));
+        assert!(json.contains("3"));
+
+        let debug = format!("{sr:?}");
+        assert!(debug.contains("SearchResult"));
+        assert!(debug.contains("src/main.rs"));
+    }
+
+    #[tokio::test]
+    async fn skips_binary_files() {
+        let dir = TempDir::new().unwrap();
+        // Write a file with invalid UTF-8 bytes
+        let binary_path = dir.path().join("binary.bin");
+        fs::write(&binary_path, [0xFF, 0xFE, 0x00, 0x01]).unwrap();
+        // Write a valid text file with the search term
+        fs::write(dir.path().join("text.txt"), "findme").unwrap();
+
+        let results = search_files_impl("findme".to_string(), dir.path().to_path_buf())
+            .await
+            .unwrap();
+
+        assert_eq!(results.len(), 1);
+        assert_eq!(results[0].path, "text.txt");
+    }
 }