Simplify test code a bit, use Request::new() to simplfy constructing requests

server/src/handler.rs

@@ -45,7 +45,7 @@ mod tests {
     const TEST_PATH: &str = "./test_passwords";
 
     #[test]
-    fn it_communicates_ok() {
+    fn it_handles_a_request() {
         let repository = PasswordDirectory::new(TEST_PATH);
 
         let request = Request::new("bp", "some-rad-password", "ignore-this", "also-ignore-this");