@@ -276,7 +276,9 @@ mod tests {
276276
277277 mod env_discovery {
278278 use system:: mock:: MockGuard ;
279- use system:: mock:: { self as sys_mock} ;
279+ use system:: mock:: {
280+ self as sys_mock,
281+ } ;
280282 use which:: Error as WhichError ;
281283
282284 use super :: * ;
@@ -289,7 +291,7 @@ mod tests {
289291
290292 let env = PythonEnvironment :: new (
291293 Utf8Path :: from_path ( project_dir. path ( ) ) . unwrap ( ) ,
292- Some ( & venv_prefix. to_string ( ) ) ,
294+ Some ( venv_prefix. as_ref ( ) ) ,
293295 )
294296 . expect ( "Should find environment with explicit path" ) ;
295297
@@ -331,7 +333,7 @@ mod tests {
331333 . expect ( "Invalid UTF-8 path" ) ;
332334 let env = PythonEnvironment :: new (
333335 Utf8Path :: from_path ( project_dir. path ( ) ) . unwrap ( ) ,
334- Some ( & invalid_path. to_string ( ) ) ,
336+ Some ( invalid_path. as_ref ( ) ) ,
335337 )
336338 . expect ( "Should fall through to project .venv" ) ;
337339
@@ -378,7 +380,7 @@ mod tests {
378380 // Call with explicit path to venv2
379381 let env = PythonEnvironment :: new (
380382 Utf8Path :: from_path ( project_dir. path ( ) ) . unwrap ( ) ,
381- Some ( & venv2_prefix. to_string ( ) ) ,
383+ Some ( venv2_prefix. as_ref ( ) ) ,
382384 )
383385 . expect ( "Should find environment via explicit path" ) ;
384386
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