add testcase for path ""

Author: chengr4

site/src/server.rs

@@ -815,3 +815,26 @@ impl ResponseHeaders for http::response::Builder {
         self
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[tokio::test]
+    async fn handle_fs_path_html() {
+        // Test case 1: Path is ""
+        let req = Request::default();
+        let path = "";
+        let use_compression = false;
+        let response = handle_fs_path(&req, path, use_compression).await.unwrap();
+        // "", "/", "/index.html", "/graphs.html" map to "graphs.html"
+        let expected_body = TEMPLATES.get_template("graphs.html").await.unwrap();
+        let expected_response = http::Response::builder()
+            .header_typed(ETag::from_str(&format!(r#""{}""#, *VERSION_UUID)).unwrap())
+            .header(CACHE_CONTROL, "max-age=60, stale-while-revalidate=86400")
+            .header_typed(ContentType::html())
+            .body(hyper::Body::from(expected_body))
+            .unwrap();
+        assert_eq!(response.headers(), expected_response.headers());
+        assert_eq!(hyper::body::to_bytes(response.into_body()).await.unwrap(), hyper::body::to_bytes(expected_response.into_body()).await.unwrap());
+    }
+}