Fix test name and simplify helper

src/database/mod.rs

@@ -175,10 +175,7 @@ pub mod testhelpers {
     impl BodyReader for ResponseBody<Body> {
         fn read_to_str(&self) -> &str {
             match self {
-                ResponseBody::Body(body) => match body {
-                    Body::Bytes(b) => std::str::from_utf8(&b).unwrap(),
-                    _ => panic!("Unknown response body content"),
-                },
+                ResponseBody::Body(Body::Bytes(ref b)) => std::str::from_utf8(b).unwrap(),
                 _ => panic!("Unknown response body"),
             }
         }