diff --git a/compiler/rustc_expand/src/parse/tests.rs b/compiler/rustc_expand/src/parse/tests.rs
index 997144e477f..5ffe8f3c73e 100644
--- a/compiler/rustc_expand/src/parse/tests.rs
+++ b/compiler/rustc_expand/src/parse/tests.rs
@@ -1,5 +1,6 @@
 use crate::tests::{
-    matches_codepattern, string_to_stream, with_error_checking_parse, with_expected_parse_error,
+    matches_codepattern, sess, string_to_stream, with_error_checking_parse,
+    with_expected_parse_error,
 };
 
 use ast::token::IdentIsRaw;
@@ -16,13 +17,8 @@
 use rustc_span::create_default_session_globals_then;
 use rustc_span::symbol::{kw, sym, Symbol};
 use rustc_span::{BytePos, FileName, Pos, Span};
-
 use std::path::PathBuf;
 
-fn sess() -> ParseSess {
-    ParseSess::new(vec![crate::DEFAULT_LOCALE_RESOURCE, rustc_parse::DEFAULT_LOCALE_RESOURCE])
-}
-
 /// Parses an item.
 ///
 /// Returns `Ok(Some(item))` when successful, `Ok(None)` when no item was found, and `Err`
diff --git a/compiler/rustc_expand/src/tests.rs b/compiler/rustc_expand/src/tests.rs
index ad60e5691ef..7d19ca13c97 100644
--- a/compiler/rustc_expand/src/tests.rs
+++ b/compiler/rustc_expand/src/tests.rs
@@ -18,6 +18,10 @@
 use std::str;
 use std::sync::{Arc, Mutex};
 
+pub(crate) fn sess() -> ParseSess {
+    ParseSess::new(vec![crate::DEFAULT_LOCALE_RESOURCE, rustc_parse::DEFAULT_LOCALE_RESOURCE])
+}
+
 /// Map string to parser (via tts).
 fn string_to_parser(ps: &ParseSess, source_str: String) -> Parser<'_> {
     new_parser_from_source_str(ps, PathBuf::from("bogofile").into(), source_str)
@@ -72,8 +76,7 @@ pub(crate) fn with_expected_parse_error<T, F>(source_str: &str, expected_output:
 
 /// Maps a string to tts, using a made-up filename.
 pub(crate) fn string_to_stream(source_str: String) -> TokenStream {
-    let ps =
-        ParseSess::new(vec![crate::DEFAULT_LOCALE_RESOURCE, rustc_parse::DEFAULT_LOCALE_RESOURCE]);
+    let ps = sess();
     source_file_to_stream(
         &ps,
         ps.source_map().new_source_file(PathBuf::from("bogofile").into(), source_str),
@@ -83,8 +86,7 @@ pub(crate) fn string_to_stream(source_str: String) -> TokenStream {
 
 /// Parses a string, returns a crate.
 pub(crate) fn string_to_crate(source_str: String) -> ast::Crate {
-    let ps =
-        ParseSess::new(vec![crate::DEFAULT_LOCALE_RESOURCE, rustc_parse::DEFAULT_LOCALE_RESOURCE]);
+    let ps = sess();
     with_error_checking_parse(source_str, &ps, |p| p.parse_crate_mod())
 }