diff --git a/crates/parser/src/grammar/items.rs b/crates/parser/src/grammar/items.rs
index d8468ba3cb..df117d7aa9 100644
--- a/crates/parser/src/grammar/items.rs
+++ b/crates/parser/src/grammar/items.rs
@@ -388,7 +388,7 @@ fn macro_def(p: &mut Parser<'_>, m: Marker) {
     m.complete(p, MACRO_DEF);
 }
 
-// test fn
+// test fn_
 // fn foo() {}
 fn fn_(p: &mut Parser<'_>, m: Marker) {
     p.bump(T![fn]);
diff --git a/crates/parser/src/grammar/types.rs b/crates/parser/src/grammar/types.rs
index 18ec570cd5..f95425824a 100644
--- a/crates/parser/src/grammar/types.rs
+++ b/crates/parser/src/grammar/types.rs
@@ -169,7 +169,7 @@ fn array_or_slice_type(p: &mut Parser<'_>) {
     m.complete(p, kind);
 }
 
-// test reference_type;
+// test reference_type
 // type A = &();
 // type B = &'static ();
 // type C = &mut ();
diff --git a/crates/parser/src/tests.rs b/crates/parser/src/tests.rs
index b837387be1..e0042fbdec 100644
--- a/crates/parser/src/tests.rs
+++ b/crates/parser/src/tests.rs
@@ -11,6 +11,9 @@ use expect_test::expect_file;
 
 use crate::{Edition, LexedStr, TopEntryPoint};
 
+#[path = "../test_data/generated/runner.rs"]
+mod runner;
+
 #[test]
 fn lex_ok() {
     for case in TestCase::list("lexer/ok") {
@@ -54,16 +57,6 @@ fn parse_ok() {
     }
 }
 
-#[test]
-fn parse_inline_ok() {
-    for case in TestCase::list("parser/inline/ok") {
-        let _guard = stdx::panic_context::enter(format!("{:?}", case.rs));
-        let (actual, errors) = parse(TopEntryPoint::SourceFile, &case.text);
-        assert!(!errors, "errors in an OK file {}:\n{actual}", case.rs.display());
-        expect_file![case.rast].assert_eq(&actual);
-    }
-}
-
 #[test]
 fn parse_err() {
     for case in TestCase::list("parser/err") {
@@ -74,16 +67,6 @@ fn parse_err() {
     }
 }
 
-#[test]
-fn parse_inline_err() {
-    for case in TestCase::list("parser/inline/err") {
-        let _guard = stdx::panic_context::enter(format!("{:?}", case.rs));
-        let (actual, errors) = parse(TopEntryPoint::SourceFile, &case.text);
-        assert!(errors, "no errors in an ERR file {}:\n{actual}", case.rs.display());
-        expect_file![case.rast].assert_eq(&actual)
-    }
-}
-
 fn parse(entry: TopEntryPoint, text: &str) -> (String, bool) {
     let lexed = LexedStr::new(Edition::CURRENT, text);
     let input = lexed.to_input();
@@ -167,3 +150,27 @@ impl TestCase {
         res
     }
 }
+
+#[track_caller]
+fn run_and_expect_no_errors(path: &str) {
+    let path = PathBuf::from(path);
+    let text = std::fs::read_to_string(&path).unwrap();
+    let (actual, errors) = parse(TopEntryPoint::SourceFile, &text);
+    assert!(!errors, "errors in an OK file {}:\n{actual}", path.display());
+    let mut p = PathBuf::from("..");
+    p.push(path);
+    p.set_extension("rast");
+    expect_file![p].assert_eq(&actual)
+}
+
+#[track_caller]
+fn run_and_expect_errors(path: &str) {
+    let path = PathBuf::from(path);
+    let text = std::fs::read_to_string(&path).unwrap();
+    let (actual, errors) = parse(TopEntryPoint::SourceFile, &text);
+    assert!(errors, "no errors in an ERR file {}:\n{actual}", path.display());
+    let mut p = PathBuf::from("..");
+    p.push(path);
+    p.set_extension("rast");
+    expect_file![p].assert_eq(&actual)
+}
diff --git a/crates/parser/test_data/generated/runner.rs b/crates/parser/test_data/generated/runner.rs
new file mode 100644
index 0000000000..f82d1ed320
--- /dev/null
+++ b/crates/parser/test_data/generated/runner.rs
@@ -0,0 +1,810 @@
+mod ok {
+    use crate::tests::run_and_expect_no_errors;
+    #[test]
+    fn anonymous_const() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/anonymous_const.rs");
+    }
+    #[test]
+    fn arb_self_types() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/arb_self_types.rs");
+    }
+    #[test]
+    fn arg_with_attr() { run_and_expect_no_errors("test_data/parser/inline/ok/arg_with_attr.rs"); }
+    #[test]
+    fn array_attrs() { run_and_expect_no_errors("test_data/parser/inline/ok/array_attrs.rs"); }
+    #[test]
+    fn array_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/array_expr.rs"); }
+    #[test]
+    fn array_type() { run_and_expect_no_errors("test_data/parser/inline/ok/array_type.rs"); }
+    #[test]
+    fn as_precedence() { run_and_expect_no_errors("test_data/parser/inline/ok/as_precedence.rs"); }
+    #[test]
+    fn assoc_const_eq() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/assoc_const_eq.rs");
+    }
+    #[test]
+    fn assoc_item_list() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/assoc_item_list.rs");
+    }
+    #[test]
+    fn assoc_item_list_inner_attrs() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/assoc_item_list_inner_attrs.rs");
+    }
+    #[test]
+    fn assoc_type_bound() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/assoc_type_bound.rs");
+    }
+    #[test]
+    fn assoc_type_eq() { run_and_expect_no_errors("test_data/parser/inline/ok/assoc_type_eq.rs"); }
+    #[test]
+    fn associated_return_type_bounds() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/associated_return_type_bounds.rs");
+    }
+    #[test]
+    fn associated_type_bounds() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/associated_type_bounds.rs");
+    }
+    #[test]
+    fn async_trait_bound() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/async_trait_bound.rs");
+    }
+    #[test]
+    fn attr_on_expr_stmt() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/attr_on_expr_stmt.rs");
+    }
+    #[test]
+    fn await_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/await_expr.rs"); }
+    #[test]
+    fn bare_dyn_types_with_leading_lifetime() {
+        run_and_expect_no_errors(
+            "test_data/parser/inline/ok/bare_dyn_types_with_leading_lifetime.rs",
+        );
+    }
+    #[test]
+    fn bare_dyn_types_with_paren_as_generic_args() {
+        run_and_expect_no_errors(
+            "test_data/parser/inline/ok/bare_dyn_types_with_paren_as_generic_args.rs",
+        );
+    }
+    #[test]
+    fn become_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/become_expr.rs"); }
+    #[test]
+    fn bind_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/bind_pat.rs"); }
+    #[test]
+    fn binop_resets_statementness() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/binop_resets_statementness.rs");
+    }
+    #[test]
+    fn block() { run_and_expect_no_errors("test_data/parser/inline/ok/block.rs"); }
+    #[test]
+    fn block_items() { run_and_expect_no_errors("test_data/parser/inline/ok/block_items.rs"); }
+    #[test]
+    fn box_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/box_pat.rs"); }
+    #[test]
+    fn break_ambiguity() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/break_ambiguity.rs");
+    }
+    #[test]
+    fn break_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/break_expr.rs"); }
+    #[test]
+    fn builtin_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/builtin_expr.rs"); }
+    #[test]
+    fn call_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/call_expr.rs"); }
+    #[test]
+    fn cast_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/cast_expr.rs"); }
+    #[test]
+    fn closure_body_underscore_assignment() {
+        run_and_expect_no_errors(
+            "test_data/parser/inline/ok/closure_body_underscore_assignment.rs",
+        );
+    }
+    #[test]
+    fn closure_params() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/closure_params.rs");
+    }
+    #[test]
+    fn closure_range_method_call() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/closure_range_method_call.rs");
+    }
+    #[test]
+    fn const_arg() { run_and_expect_no_errors("test_data/parser/inline/ok/const_arg.rs"); }
+    #[test]
+    fn const_arg_block() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_arg_block.rs");
+    }
+    #[test]
+    fn const_arg_bool_literal() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_arg_bool_literal.rs");
+    }
+    #[test]
+    fn const_arg_literal() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_arg_literal.rs");
+    }
+    #[test]
+    fn const_arg_negative_number() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_arg_negative_number.rs");
+    }
+    #[test]
+    fn const_block_pat() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_block_pat.rs");
+    }
+    #[test]
+    fn const_closure() { run_and_expect_no_errors("test_data/parser/inline/ok/const_closure.rs"); }
+    #[test]
+    fn const_item() { run_and_expect_no_errors("test_data/parser/inline/ok/const_item.rs"); }
+    #[test]
+    fn const_param() { run_and_expect_no_errors("test_data/parser/inline/ok/const_param.rs"); }
+    #[test]
+    fn const_param_default_expression() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_param_default_expression.rs");
+    }
+    #[test]
+    fn const_param_default_literal() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_param_default_literal.rs");
+    }
+    #[test]
+    fn const_param_default_path() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_param_default_path.rs");
+    }
+    #[test]
+    fn const_trait_bound() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/const_trait_bound.rs");
+    }
+    #[test]
+    fn continue_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/continue_expr.rs"); }
+    #[test]
+    fn crate_path() { run_and_expect_no_errors("test_data/parser/inline/ok/crate_path.rs"); }
+    #[test]
+    fn crate_visibility() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/crate_visibility.rs");
+    }
+    #[test]
+    fn crate_visibility_in() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/crate_visibility_in.rs");
+    }
+    #[test]
+    fn default_async_fn() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/default_async_fn.rs");
+    }
+    #[test]
+    fn default_async_unsafe_fn() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/default_async_unsafe_fn.rs");
+    }
+    #[test]
+    fn default_item() { run_and_expect_no_errors("test_data/parser/inline/ok/default_item.rs"); }
+    #[test]
+    fn default_unsafe_item() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/default_unsafe_item.rs");
+    }
+    #[test]
+    fn destructuring_assignment_struct_rest_pattern() {
+        run_and_expect_no_errors(
+            "test_data/parser/inline/ok/destructuring_assignment_struct_rest_pattern.rs",
+        );
+    }
+    #[test]
+    fn destructuring_assignment_wildcard_pat() {
+        run_and_expect_no_errors(
+            "test_data/parser/inline/ok/destructuring_assignment_wildcard_pat.rs",
+        );
+    }
+    #[test]
+    fn dot_dot_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/dot_dot_pat.rs"); }
+    #[test]
+    fn dyn_trait_type() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/dyn_trait_type.rs");
+    }
+    #[test]
+    fn effect_blocks() { run_and_expect_no_errors("test_data/parser/inline/ok/effect_blocks.rs"); }
+    #[test]
+    fn exclusive_range_pat() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/exclusive_range_pat.rs");
+    }
+    #[test]
+    fn expr_literals() { run_and_expect_no_errors("test_data/parser/inline/ok/expr_literals.rs"); }
+    #[test]
+    fn expression_after_block() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/expression_after_block.rs");
+    }
+    #[test]
+    fn extern_block() { run_and_expect_no_errors("test_data/parser/inline/ok/extern_block.rs"); }
+    #[test]
+    fn extern_crate() { run_and_expect_no_errors("test_data/parser/inline/ok/extern_crate.rs"); }
+    #[test]
+    fn extern_crate_rename() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/extern_crate_rename.rs");
+    }
+    #[test]
+    fn extern_crate_self() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/extern_crate_self.rs");
+    }
+    #[test]
+    fn field_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/field_expr.rs"); }
+    #[test]
+    fn fn_() { run_and_expect_no_errors("test_data/parser/inline/ok/fn_.rs"); }
+    #[test]
+    fn fn_decl() { run_and_expect_no_errors("test_data/parser/inline/ok/fn_decl.rs"); }
+    #[test]
+    fn fn_def_param() { run_and_expect_no_errors("test_data/parser/inline/ok/fn_def_param.rs"); }
+    #[test]
+    fn fn_pointer_param_ident_path() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/fn_pointer_param_ident_path.rs");
+    }
+    #[test]
+    fn fn_pointer_type() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/fn_pointer_type.rs");
+    }
+    #[test]
+    fn fn_pointer_type_with_ret() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/fn_pointer_type_with_ret.rs");
+    }
+    #[test]
+    fn fn_pointer_unnamed_arg() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/fn_pointer_unnamed_arg.rs");
+    }
+    #[test]
+    fn for_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/for_expr.rs"); }
+    #[test]
+    fn for_range_from() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/for_range_from.rs");
+    }
+    #[test]
+    fn for_type() { run_and_expect_no_errors("test_data/parser/inline/ok/for_type.rs"); }
+    #[test]
+    fn full_range_expr() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/full_range_expr.rs");
+    }
+    #[test]
+    fn function_ret_type() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/function_ret_type.rs");
+    }
+    #[test]
+    fn function_type_params() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/function_type_params.rs");
+    }
+    #[test]
+    fn function_where_clause() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/function_where_clause.rs");
+    }
+    #[test]
+    fn generic_arg() { run_and_expect_no_errors("test_data/parser/inline/ok/generic_arg.rs"); }
+    #[test]
+    fn generic_param_attribute() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/generic_param_attribute.rs");
+    }
+    #[test]
+    fn generic_param_list() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/generic_param_list.rs");
+    }
+    #[test]
+    fn half_open_range_pat() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/half_open_range_pat.rs");
+    }
+    #[test]
+    fn if_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/if_expr.rs"); }
+    #[test]
+    fn impl_item() { run_and_expect_no_errors("test_data/parser/inline/ok/impl_item.rs"); }
+    #[test]
+    fn impl_item_const() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/impl_item_const.rs");
+    }
+    #[test]
+    fn impl_item_neg() { run_and_expect_no_errors("test_data/parser/inline/ok/impl_item_neg.rs"); }
+    #[test]
+    fn impl_trait_type() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/impl_trait_type.rs");
+    }
+    #[test]
+    fn impl_type_params() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/impl_type_params.rs");
+    }
+    #[test]
+    fn index_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/index_expr.rs"); }
+    #[test]
+    fn label() { run_and_expect_no_errors("test_data/parser/inline/ok/label.rs"); }
+    #[test]
+    fn labeled_block() { run_and_expect_no_errors("test_data/parser/inline/ok/labeled_block.rs"); }
+    #[test]
+    fn lambda_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/lambda_expr.rs"); }
+    #[test]
+    fn lambda_ret_block() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/lambda_ret_block.rs");
+    }
+    #[test]
+    fn let_else() { run_and_expect_no_errors("test_data/parser/inline/ok/let_else.rs"); }
+    #[test]
+    fn let_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/let_expr.rs"); }
+    #[test]
+    fn let_stmt() { run_and_expect_no_errors("test_data/parser/inline/ok/let_stmt.rs"); }
+    #[test]
+    fn let_stmt_ascription() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/let_stmt_ascription.rs");
+    }
+    #[test]
+    fn let_stmt_init() { run_and_expect_no_errors("test_data/parser/inline/ok/let_stmt_init.rs"); }
+    #[test]
+    fn lifetime_arg() { run_and_expect_no_errors("test_data/parser/inline/ok/lifetime_arg.rs"); }
+    #[test]
+    fn lifetime_param() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/lifetime_param.rs");
+    }
+    #[test]
+    fn literal_pattern() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/literal_pattern.rs");
+    }
+    #[test]
+    fn loop_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/loop_expr.rs"); }
+    #[test]
+    fn macro_call_type() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/macro_call_type.rs");
+    }
+    #[test]
+    fn macro_def() { run_and_expect_no_errors("test_data/parser/inline/ok/macro_def.rs"); }
+    #[test]
+    fn macro_def_curly() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/macro_def_curly.rs");
+    }
+    #[test]
+    fn macro_inside_generic_arg() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/macro_inside_generic_arg.rs");
+    }
+    #[test]
+    fn macro_rules_as_macro_name() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/macro_rules_as_macro_name.rs");
+    }
+    #[test]
+    fn macro_rules_non_brace() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/macro_rules_non_brace.rs");
+    }
+    #[test]
+    fn marco_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/marco_pat.rs"); }
+    #[test]
+    fn match_arm() { run_and_expect_no_errors("test_data/parser/inline/ok/match_arm.rs"); }
+    #[test]
+    fn match_arms_commas() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/match_arms_commas.rs");
+    }
+    #[test]
+    fn match_arms_inner_attribute() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/match_arms_inner_attribute.rs");
+    }
+    #[test]
+    fn match_arms_outer_attributes() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/match_arms_outer_attributes.rs");
+    }
+    #[test]
+    fn match_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/match_expr.rs"); }
+    #[test]
+    fn match_guard() { run_and_expect_no_errors("test_data/parser/inline/ok/match_guard.rs"); }
+    #[test]
+    fn metas() { run_and_expect_no_errors("test_data/parser/inline/ok/metas.rs"); }
+    #[test]
+    fn method_call_expr() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/method_call_expr.rs");
+    }
+    #[test]
+    fn mod_contents() { run_and_expect_no_errors("test_data/parser/inline/ok/mod_contents.rs"); }
+    #[test]
+    fn mod_item() { run_and_expect_no_errors("test_data/parser/inline/ok/mod_item.rs"); }
+    #[test]
+    fn mod_item_curly() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/mod_item_curly.rs");
+    }
+    #[test]
+    fn never_type() { run_and_expect_no_errors("test_data/parser/inline/ok/never_type.rs"); }
+    #[test]
+    fn no_dyn_trait_leading_for() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/no_dyn_trait_leading_for.rs");
+    }
+    #[test]
+    fn no_semi_after_block() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/no_semi_after_block.rs");
+    }
+    #[test]
+    fn nocontentexpr() { run_and_expect_no_errors("test_data/parser/inline/ok/nocontentexpr.rs"); }
+    #[test]
+    fn nocontentexpr_after_item() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/nocontentexpr_after_item.rs");
+    }
+    #[test]
+    fn or_pattern() { run_and_expect_no_errors("test_data/parser/inline/ok/or_pattern.rs"); }
+    #[test]
+    fn param_list() { run_and_expect_no_errors("test_data/parser/inline/ok/param_list.rs"); }
+    #[test]
+    fn param_list_opt_patterns() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/param_list_opt_patterns.rs");
+    }
+    #[test]
+    fn param_list_vararg() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/param_list_vararg.rs");
+    }
+    #[test]
+    fn param_outer_arg() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/param_outer_arg.rs");
+    }
+    #[test]
+    fn paren_type() { run_and_expect_no_errors("test_data/parser/inline/ok/paren_type.rs"); }
+    #[test]
+    fn path_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/path_expr.rs"); }
+    #[test]
+    fn path_fn_trait_args() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/path_fn_trait_args.rs");
+    }
+    #[test]
+    fn path_part() { run_and_expect_no_errors("test_data/parser/inline/ok/path_part.rs"); }
+    #[test]
+    fn path_type() { run_and_expect_no_errors("test_data/parser/inline/ok/path_type.rs"); }
+    #[test]
+    fn path_type_with_bounds() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/path_type_with_bounds.rs");
+    }
+    #[test]
+    fn placeholder_pat() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/placeholder_pat.rs");
+    }
+    #[test]
+    fn placeholder_type() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/placeholder_type.rs");
+    }
+    #[test]
+    fn pointer_type_mut() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/pointer_type_mut.rs");
+    }
+    #[test]
+    fn postfix_range() { run_and_expect_no_errors("test_data/parser/inline/ok/postfix_range.rs"); }
+    #[test]
+    fn pub_parens_typepath() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/pub_parens_typepath.rs");
+    }
+    #[test]
+    fn pub_tuple_field() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/pub_tuple_field.rs");
+    }
+    #[test]
+    fn qual_paths() { run_and_expect_no_errors("test_data/parser/inline/ok/qual_paths.rs"); }
+    #[test]
+    fn question_for_type_trait_bound() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/question_for_type_trait_bound.rs");
+    }
+    #[test]
+    fn range_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/range_pat.rs"); }
+    #[test]
+    fn record_field_attrs() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/record_field_attrs.rs");
+    }
+    #[test]
+    fn record_field_list() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/record_field_list.rs");
+    }
+    #[test]
+    fn record_lit() { run_and_expect_no_errors("test_data/parser/inline/ok/record_lit.rs"); }
+    #[test]
+    fn record_literal_field_with_attr() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/record_literal_field_with_attr.rs");
+    }
+    #[test]
+    fn record_pat_field() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/record_pat_field.rs");
+    }
+    #[test]
+    fn record_pat_field_list() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/record_pat_field_list.rs");
+    }
+    #[test]
+    fn ref_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/ref_expr.rs"); }
+    #[test]
+    fn ref_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/ref_pat.rs"); }
+    #[test]
+    fn reference_type() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/reference_type.rs");
+    }
+    #[test]
+    fn return_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/return_expr.rs"); }
+    #[test]
+    fn self_param() { run_and_expect_no_errors("test_data/parser/inline/ok/self_param.rs"); }
+    #[test]
+    fn self_param_outer_attr() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/self_param_outer_attr.rs");
+    }
+    #[test]
+    fn singleton_tuple_type() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/singleton_tuple_type.rs");
+    }
+    #[test]
+    fn slice_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/slice_pat.rs"); }
+    #[test]
+    fn slice_type() { run_and_expect_no_errors("test_data/parser/inline/ok/slice_type.rs"); }
+    #[test]
+    fn stmt_bin_expr_ambiguity() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/stmt_bin_expr_ambiguity.rs");
+    }
+    #[test]
+    fn stmt_postfix_expr_ambiguity() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/stmt_postfix_expr_ambiguity.rs");
+    }
+    #[test]
+    fn struct_item() { run_and_expect_no_errors("test_data/parser/inline/ok/struct_item.rs"); }
+    #[test]
+    fn trait_alias() { run_and_expect_no_errors("test_data/parser/inline/ok/trait_alias.rs"); }
+    #[test]
+    fn trait_alias_where_clause() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/trait_alias_where_clause.rs");
+    }
+    #[test]
+    fn trait_item() { run_and_expect_no_errors("test_data/parser/inline/ok/trait_item.rs"); }
+    #[test]
+    fn trait_item_bounds() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/trait_item_bounds.rs");
+    }
+    #[test]
+    fn trait_item_generic_params() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/trait_item_generic_params.rs");
+    }
+    #[test]
+    fn trait_item_where_clause() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/trait_item_where_clause.rs");
+    }
+    #[test]
+    fn try_block_expr() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/try_block_expr.rs");
+    }
+    #[test]
+    fn try_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/try_expr.rs"); }
+    #[test]
+    fn try_macro_fallback() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/try_macro_fallback.rs");
+    }
+    #[test]
+    fn try_macro_rules() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/try_macro_rules.rs");
+    }
+    #[test]
+    fn tuple_attrs() { run_and_expect_no_errors("test_data/parser/inline/ok/tuple_attrs.rs"); }
+    #[test]
+    fn tuple_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/tuple_expr.rs"); }
+    #[test]
+    fn tuple_field_attrs() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/tuple_field_attrs.rs");
+    }
+    #[test]
+    fn tuple_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/tuple_pat.rs"); }
+    #[test]
+    fn tuple_pat_fields() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/tuple_pat_fields.rs");
+    }
+    #[test]
+    fn tuple_struct() { run_and_expect_no_errors("test_data/parser/inline/ok/tuple_struct.rs"); }
+    #[test]
+    fn tuple_struct_where() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/tuple_struct_where.rs");
+    }
+    #[test]
+    fn type_alias() { run_and_expect_no_errors("test_data/parser/inline/ok/type_alias.rs"); }
+    #[test]
+    fn type_item_type_params() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/type_item_type_params.rs");
+    }
+    #[test]
+    fn type_item_where_clause() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/type_item_where_clause.rs");
+    }
+    #[test]
+    fn type_item_where_clause_deprecated() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/type_item_where_clause_deprecated.rs");
+    }
+    #[test]
+    fn type_param() { run_and_expect_no_errors("test_data/parser/inline/ok/type_param.rs"); }
+    #[test]
+    fn type_param_bounds() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/type_param_bounds.rs");
+    }
+    #[test]
+    fn type_param_default() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/type_param_default.rs");
+    }
+    #[test]
+    fn type_path_in_pattern() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/type_path_in_pattern.rs");
+    }
+    #[test]
+    fn typepathfn_with_coloncolon() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/typepathfn_with_coloncolon.rs");
+    }
+    #[test]
+    fn unary_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/unary_expr.rs"); }
+    #[test]
+    fn union_item() { run_and_expect_no_errors("test_data/parser/inline/ok/union_item.rs"); }
+    #[test]
+    fn unit_struct() { run_and_expect_no_errors("test_data/parser/inline/ok/unit_struct.rs"); }
+    #[test]
+    fn unit_type() { run_and_expect_no_errors("test_data/parser/inline/ok/unit_type.rs"); }
+    #[test]
+    fn use_item() { run_and_expect_no_errors("test_data/parser/inline/ok/use_item.rs"); }
+    #[test]
+    fn use_tree() { run_and_expect_no_errors("test_data/parser/inline/ok/use_tree.rs"); }
+    #[test]
+    fn use_tree_abs_star() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/use_tree_abs_star.rs");
+    }
+    #[test]
+    fn use_tree_alias() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/use_tree_alias.rs");
+    }
+    #[test]
+    fn use_tree_list() { run_and_expect_no_errors("test_data/parser/inline/ok/use_tree_list.rs"); }
+    #[test]
+    fn use_tree_path() { run_and_expect_no_errors("test_data/parser/inline/ok/use_tree_path.rs"); }
+    #[test]
+    fn use_tree_path_star() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/use_tree_path_star.rs");
+    }
+    #[test]
+    fn use_tree_path_use_tree() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/use_tree_path_use_tree.rs");
+    }
+    #[test]
+    fn use_tree_star() { run_and_expect_no_errors("test_data/parser/inline/ok/use_tree_star.rs"); }
+    #[test]
+    fn value_parameters_no_patterns() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/value_parameters_no_patterns.rs");
+    }
+    #[test]
+    fn variant_discriminant() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/variant_discriminant.rs");
+    }
+    #[test]
+    fn where_clause() { run_and_expect_no_errors("test_data/parser/inline/ok/where_clause.rs"); }
+    #[test]
+    fn where_pred_for() {
+        run_and_expect_no_errors("test_data/parser/inline/ok/where_pred_for.rs");
+    }
+    #[test]
+    fn while_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/while_expr.rs"); }
+    #[test]
+    fn yeet_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/yeet_expr.rs"); }
+    #[test]
+    fn yield_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/yield_expr.rs"); }
+}
+mod err {
+    use crate::tests::run_and_expect_errors;
+    #[test]
+    fn angled_path_without_qual() {
+        run_and_expect_errors("test_data/parser/inline/err/angled_path_without_qual.rs");
+    }
+    #[test]
+    fn anonymous_static() {
+        run_and_expect_errors("test_data/parser/inline/err/anonymous_static.rs");
+    }
+    #[test]
+    fn arg_list_recovery() {
+        run_and_expect_errors("test_data/parser/inline/err/arg_list_recovery.rs");
+    }
+    #[test]
+    fn array_type_missing_semi() {
+        run_and_expect_errors("test_data/parser/inline/err/array_type_missing_semi.rs");
+    }
+    #[test]
+    fn async_without_semicolon() {
+        run_and_expect_errors("test_data/parser/inline/err/async_without_semicolon.rs");
+    }
+    #[test]
+    fn comma_after_functional_update_syntax() {
+        run_and_expect_errors(
+            "test_data/parser/inline/err/comma_after_functional_update_syntax.rs",
+        );
+    }
+    #[test]
+    fn crate_visibility_empty_recover() {
+        run_and_expect_errors("test_data/parser/inline/err/crate_visibility_empty_recover.rs");
+    }
+    #[test]
+    fn empty_param_slot() {
+        run_and_expect_errors("test_data/parser/inline/err/empty_param_slot.rs");
+    }
+    #[test]
+    fn empty_segment() { run_and_expect_errors("test_data/parser/inline/err/empty_segment.rs"); }
+    #[test]
+    fn fn_pointer_type_missing_fn() {
+        run_and_expect_errors("test_data/parser/inline/err/fn_pointer_type_missing_fn.rs");
+    }
+    #[test]
+    fn gen_blocks() { run_and_expect_errors("test_data/parser/inline/err/gen_blocks.rs"); }
+    #[test]
+    fn gen_fn() { run_and_expect_errors("test_data/parser/inline/err/gen_fn.rs"); }
+    #[test]
+    fn generic_arg_list_recover() {
+        run_and_expect_errors("test_data/parser/inline/err/generic_arg_list_recover.rs");
+    }
+    #[test]
+    fn generic_param_list_recover() {
+        run_and_expect_errors("test_data/parser/inline/err/generic_param_list_recover.rs");
+    }
+    #[test]
+    fn impl_type() { run_and_expect_errors("test_data/parser/inline/err/impl_type.rs"); }
+    #[test]
+    fn let_else_right_curly_brace() {
+        run_and_expect_errors("test_data/parser/inline/err/let_else_right_curly_brace.rs");
+    }
+    #[test]
+    fn macro_rules_as_macro_name() {
+        run_and_expect_errors("test_data/parser/inline/err/macro_rules_as_macro_name.rs");
+    }
+    #[test]
+    fn match_arms_recovery() {
+        run_and_expect_errors("test_data/parser/inline/err/match_arms_recovery.rs");
+    }
+    #[test]
+    fn method_call_missing_argument_list() {
+        run_and_expect_errors("test_data/parser/inline/err/method_call_missing_argument_list.rs");
+    }
+    #[test]
+    fn misplaced_label_err() {
+        run_and_expect_errors("test_data/parser/inline/err/misplaced_label_err.rs");
+    }
+    #[test]
+    fn missing_fn_param_type() {
+        run_and_expect_errors("test_data/parser/inline/err/missing_fn_param_type.rs");
+    }
+    #[test]
+    fn pointer_type_no_mutability() {
+        run_and_expect_errors("test_data/parser/inline/err/pointer_type_no_mutability.rs");
+    }
+    #[test]
+    fn pub_expr() { run_and_expect_errors("test_data/parser/inline/err/pub_expr.rs"); }
+    #[test]
+    fn record_literal_before_ellipsis_recovery() {
+        run_and_expect_errors(
+            "test_data/parser/inline/err/record_literal_before_ellipsis_recovery.rs",
+        );
+    }
+    #[test]
+    fn record_literal_field_eq_recovery() {
+        run_and_expect_errors("test_data/parser/inline/err/record_literal_field_eq_recovery.rs");
+    }
+    #[test]
+    fn record_literal_missing_ellipsis_recovery() {
+        run_and_expect_errors(
+            "test_data/parser/inline/err/record_literal_missing_ellipsis_recovery.rs",
+        );
+    }
+    #[test]
+    fn record_pat_field_eq_recovery() {
+        run_and_expect_errors("test_data/parser/inline/err/record_pat_field_eq_recovery.rs");
+    }
+    #[test]
+    fn recover_from_missing_assoc_item_binding() {
+        run_and_expect_errors(
+            "test_data/parser/inline/err/recover_from_missing_assoc_item_binding.rs",
+        );
+    }
+    #[test]
+    fn recover_from_missing_const_default() {
+        run_and_expect_errors("test_data/parser/inline/err/recover_from_missing_const_default.rs");
+    }
+    #[test]
+    fn struct_field_recover() {
+        run_and_expect_errors("test_data/parser/inline/err/struct_field_recover.rs");
+    }
+    #[test]
+    fn top_level_let() { run_and_expect_errors("test_data/parser/inline/err/top_level_let.rs"); }
+    #[test]
+    fn tuple_expr_leading_comma() {
+        run_and_expect_errors("test_data/parser/inline/err/tuple_expr_leading_comma.rs");
+    }
+    #[test]
+    fn tuple_field_list_recovery() {
+        run_and_expect_errors("test_data/parser/inline/err/tuple_field_list_recovery.rs");
+    }
+    #[test]
+    fn tuple_pat_leading_comma() {
+        run_and_expect_errors("test_data/parser/inline/err/tuple_pat_leading_comma.rs");
+    }
+    #[test]
+    fn unsafe_block_in_mod() {
+        run_and_expect_errors("test_data/parser/inline/err/unsafe_block_in_mod.rs");
+    }
+    #[test]
+    fn use_tree_list_err_recovery() {
+        run_and_expect_errors("test_data/parser/inline/err/use_tree_list_err_recovery.rs");
+    }
+}
diff --git a/crates/parser/test_data/parser/inline/err/0016_angled_path_without_qual.rast b/crates/parser/test_data/parser/inline/err/angled_path_without_qual.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0016_angled_path_without_qual.rast
rename to crates/parser/test_data/parser/inline/err/angled_path_without_qual.rast
diff --git a/crates/parser/test_data/parser/inline/err/0016_angled_path_without_qual.rs b/crates/parser/test_data/parser/inline/err/angled_path_without_qual.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0016_angled_path_without_qual.rs
rename to crates/parser/test_data/parser/inline/err/angled_path_without_qual.rs
diff --git a/crates/parser/test_data/parser/inline/err/0013_anonymous_static.rast b/crates/parser/test_data/parser/inline/err/anonymous_static.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0013_anonymous_static.rast
rename to crates/parser/test_data/parser/inline/err/anonymous_static.rast
diff --git a/crates/parser/test_data/parser/inline/err/0013_anonymous_static.rs b/crates/parser/test_data/parser/inline/err/anonymous_static.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0013_anonymous_static.rs
rename to crates/parser/test_data/parser/inline/err/anonymous_static.rs
diff --git a/crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rast b/crates/parser/test_data/parser/inline/err/arg_list_recovery.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rast
rename to crates/parser/test_data/parser/inline/err/arg_list_recovery.rast
diff --git a/crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rs b/crates/parser/test_data/parser/inline/err/arg_list_recovery.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rs
rename to crates/parser/test_data/parser/inline/err/arg_list_recovery.rs
diff --git a/crates/parser/test_data/parser/inline/err/0001_array_type_missing_semi.rast b/crates/parser/test_data/parser/inline/err/array_type_missing_semi.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0001_array_type_missing_semi.rast
rename to crates/parser/test_data/parser/inline/err/array_type_missing_semi.rast
diff --git a/crates/parser/test_data/parser/inline/err/0001_array_type_missing_semi.rs b/crates/parser/test_data/parser/inline/err/array_type_missing_semi.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0001_array_type_missing_semi.rs
rename to crates/parser/test_data/parser/inline/err/array_type_missing_semi.rs
diff --git a/crates/parser/test_data/parser/inline/err/0007_async_without_semicolon.rast b/crates/parser/test_data/parser/inline/err/async_without_semicolon.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0007_async_without_semicolon.rast
rename to crates/parser/test_data/parser/inline/err/async_without_semicolon.rast
diff --git a/crates/parser/test_data/parser/inline/err/0007_async_without_semicolon.rs b/crates/parser/test_data/parser/inline/err/async_without_semicolon.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/err/0007_async_without_semicolon.rs
rename to crates/parser/test_data/parser/inline/err/async_without_semicolon.rs
diff --git a/crates/parser/test_data/parser/inline/err/0024_comma_after_functional_update_syntax.rast b/crates/parser/test_data/parser/inline/err/comma_after_functional_update_syntax.rast
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-SOURCE_FILE@0..106
-  STRUCT@0..11
-    STRUCT_KW@0..6 "struct"
-    WHITESPACE@6..7 " "
-    NAME@7..10
-      IDENT@7..10 "Foo"
-    SEMICOLON@10..11 ";"
-  WHITESPACE@11..12 "\n"
-  STRUCT@12..25
-    STRUCT_KW@12..18 "struct"
-    WHITESPACE@18..19 " "
-    NAME@19..22
-      IDENT@19..22 "Foo"
-    WHITESPACE@22..23 " "
-    RECORD_FIELD_LIST@23..25
-      L_CURLY@23..24 "{"
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-    WHITESPACE@32..33 " "
-    NAME@33..36
-      IDENT@33..36 "Foo"
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-      R_PAREN@37..38 ")"
-    SEMICOLON@38..39 ";"
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-    WHITESPACE@46..47 " "
-    NAME@47..50
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-      COMMA@57..58 ","
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-          PATH@59..64
-            PATH_SEGMENT@59..64
-              NAME_REF@59..64
-                IDENT@59..64 "usize"
-      R_PAREN@64..65 ")"
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-    STRUCT_KW@67..73 "struct"
-    WHITESPACE@73..74 " "
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-      IDENT@74..77 "Foo"
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-      COMMA@102..103 ","
-      WHITESPACE@103..104 "\n"
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rename from crates/parser/test_data/parser/inline/ok/0176_use_tree_alias.rs
rename to crates/parser/test_data/parser/inline/ok/use_tree_alias.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0002_use_tree_list.rast b/crates/parser/test_data/parser/inline/ok/use_tree_list.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0002_use_tree_list.rast
rename to crates/parser/test_data/parser/inline/ok/use_tree_list.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0002_use_tree_list.rs b/crates/parser/test_data/parser/inline/ok/use_tree_list.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0002_use_tree_list.rs
rename to crates/parser/test_data/parser/inline/ok/use_tree_list.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0177_use_tree_path.rast b/crates/parser/test_data/parser/inline/ok/use_tree_path.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0177_use_tree_path.rast
rename to crates/parser/test_data/parser/inline/ok/use_tree_path.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0177_use_tree_path.rs b/crates/parser/test_data/parser/inline/ok/use_tree_path.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0177_use_tree_path.rs
rename to crates/parser/test_data/parser/inline/ok/use_tree_path.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0180_use_tree_path_star.rast b/crates/parser/test_data/parser/inline/ok/use_tree_path_star.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0180_use_tree_path_star.rast
rename to crates/parser/test_data/parser/inline/ok/use_tree_path_star.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0180_use_tree_path_star.rs b/crates/parser/test_data/parser/inline/ok/use_tree_path_star.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0180_use_tree_path_star.rs
rename to crates/parser/test_data/parser/inline/ok/use_tree_path_star.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0178_use_tree_path_use_tree.rast b/crates/parser/test_data/parser/inline/ok/use_tree_path_use_tree.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0178_use_tree_path_use_tree.rast
rename to crates/parser/test_data/parser/inline/ok/use_tree_path_use_tree.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0178_use_tree_path_use_tree.rs b/crates/parser/test_data/parser/inline/ok/use_tree_path_use_tree.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0178_use_tree_path_use_tree.rs
rename to crates/parser/test_data/parser/inline/ok/use_tree_path_use_tree.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0174_use_tree_star.rast b/crates/parser/test_data/parser/inline/ok/use_tree_star.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0174_use_tree_star.rast
rename to crates/parser/test_data/parser/inline/ok/use_tree_star.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0174_use_tree_star.rs b/crates/parser/test_data/parser/inline/ok/use_tree_star.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0174_use_tree_star.rs
rename to crates/parser/test_data/parser/inline/ok/use_tree_star.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rast b/crates/parser/test_data/parser/inline/ok/value_parameters_no_patterns.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rast
rename to crates/parser/test_data/parser/inline/ok/value_parameters_no_patterns.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rs b/crates/parser/test_data/parser/inline/ok/value_parameters_no_patterns.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0004_value_parameters_no_patterns.rs
rename to crates/parser/test_data/parser/inline/ok/value_parameters_no_patterns.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0157_variant_discriminant.rast b/crates/parser/test_data/parser/inline/ok/variant_discriminant.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0157_variant_discriminant.rast
rename to crates/parser/test_data/parser/inline/ok/variant_discriminant.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0157_variant_discriminant.rs b/crates/parser/test_data/parser/inline/ok/variant_discriminant.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0157_variant_discriminant.rs
rename to crates/parser/test_data/parser/inline/ok/variant_discriminant.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0056_where_clause.rast b/crates/parser/test_data/parser/inline/ok/where_clause.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0056_where_clause.rast
rename to crates/parser/test_data/parser/inline/ok/where_clause.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0056_where_clause.rs b/crates/parser/test_data/parser/inline/ok/where_clause.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0056_where_clause.rs
rename to crates/parser/test_data/parser/inline/ok/where_clause.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0003_where_pred_for.rast b/crates/parser/test_data/parser/inline/ok/where_pred_for.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0003_where_pred_for.rast
rename to crates/parser/test_data/parser/inline/ok/where_pred_for.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0003_where_pred_for.rs b/crates/parser/test_data/parser/inline/ok/where_pred_for.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0003_where_pred_for.rs
rename to crates/parser/test_data/parser/inline/ok/where_pred_for.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0031_while_expr.rast b/crates/parser/test_data/parser/inline/ok/while_expr.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0031_while_expr.rast
rename to crates/parser/test_data/parser/inline/ok/while_expr.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0031_while_expr.rs b/crates/parser/test_data/parser/inline/ok/while_expr.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0031_while_expr.rs
rename to crates/parser/test_data/parser/inline/ok/while_expr.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0204_yeet_expr.rast b/crates/parser/test_data/parser/inline/ok/yeet_expr.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0204_yeet_expr.rast
rename to crates/parser/test_data/parser/inline/ok/yeet_expr.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0204_yeet_expr.rs b/crates/parser/test_data/parser/inline/ok/yeet_expr.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0204_yeet_expr.rs
rename to crates/parser/test_data/parser/inline/ok/yeet_expr.rs
diff --git a/crates/parser/test_data/parser/inline/ok/0159_yield_expr.rast b/crates/parser/test_data/parser/inline/ok/yield_expr.rast
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0159_yield_expr.rast
rename to crates/parser/test_data/parser/inline/ok/yield_expr.rast
diff --git a/crates/parser/test_data/parser/inline/ok/0159_yield_expr.rs b/crates/parser/test_data/parser/inline/ok/yield_expr.rs
similarity index 100%
rename from crates/parser/test_data/parser/inline/ok/0159_yield_expr.rs
rename to crates/parser/test_data/parser/inline/ok/yield_expr.rs
diff --git a/xtask/src/codegen.rs b/xtask/src/codegen.rs
index 2491952f52..aeb0c00ae6 100644
--- a/xtask/src/codegen.rs
+++ b/xtask/src/codegen.rs
@@ -162,12 +162,12 @@ fn add_preamble(cg: CodegenType, mut text: String) -> String {
 /// Checks that the `file` has the specified `contents`. If that is not the
 /// case, updates the file and then fails the test.
 #[allow(clippy::print_stderr)]
-fn ensure_file_contents(cg: CodegenType, file: &Path, contents: &str, check: bool) {
+fn ensure_file_contents(cg: CodegenType, file: &Path, contents: &str, check: bool) -> bool {
     let contents = normalize_newlines(contents);
     if let Ok(old_contents) = fs::read_to_string(file) {
         if normalize_newlines(&old_contents) == contents {
             // File is already up to date.
-            return;
+            return false;
         }
     }
 
@@ -194,6 +194,7 @@ fn ensure_file_contents(cg: CodegenType, file: &Path, contents: &str, check: boo
             let _ = fs::create_dir_all(parent);
         }
         fs::write(file, contents).unwrap();
+        true
     }
 }
 
diff --git a/xtask/src/codegen/parser_inline_tests.rs b/xtask/src/codegen/parser_inline_tests.rs
index 5983b06e1b..3a9073b4e4 100644
--- a/xtask/src/codegen/parser_inline_tests.rs
+++ b/xtask/src/codegen/parser_inline_tests.rs
@@ -6,68 +6,132 @@ use std::{
     collections::HashMap,
     fs, iter,
     path::{Path, PathBuf},
+    time::SystemTime,
 };
 
+use anyhow::Result;
+use itertools::Itertools as _;
+
 use crate::{
-    codegen::{ensure_file_contents, CommentBlock},
+    codegen::{ensure_file_contents, reformat, CommentBlock},
     project_root,
     util::list_rust_files,
 };
 
+const PARSER_CRATE_ROOT: &str = "crates/parser";
+const PARSER_TEST_DATA: &str = "crates/parser/test_data";
+const PARSER_TEST_DATA_INLINE: &str = "crates/parser/test_data/parser/inline";
+
 pub(crate) fn generate(check: bool) {
-    let grammar_dir = project_root().join(Path::new("crates/parser/src/grammar"));
-    let tests = tests_from_dir(&grammar_dir);
+    let tests = tests_from_dir(
+        &project_root().join(Path::new(&format!("{PARSER_CRATE_ROOT}/src/grammar"))),
+    );
 
-    install_tests(&tests.ok, "crates/parser/test_data/parser/inline/ok", check);
-    install_tests(&tests.err, "crates/parser/test_data/parser/inline/err", check);
+    let mut some_file_was_updated = false;
+    some_file_was_updated |=
+        install_tests(&tests.ok, &format!("{PARSER_TEST_DATA_INLINE}/ok"), check).unwrap();
+    some_file_was_updated |=
+        install_tests(&tests.err, &format!("{PARSER_TEST_DATA_INLINE}/err"), check).unwrap();
 
-    fn install_tests(tests: &HashMap<String, Test>, into: &str, check: bool) {
-        let tests_dir = project_root().join(into);
-        if !tests_dir.is_dir() {
-            fs::create_dir_all(&tests_dir).unwrap();
-        }
-        // ok is never actually read, but it needs to be specified to create a Test in existing_tests
-        let existing = existing_tests(&tests_dir, true);
-        if let Some(t) = existing.keys().find(|&t| !tests.contains_key(t)) {
-            panic!("Test is deleted: {t}");
-        }
+    if some_file_was_updated {
+        let _ = fs::File::open(&format!("{PARSER_CRATE_ROOT}/src/tests.rs"))
+            .unwrap()
+            .set_modified(SystemTime::now());
 
-        let mut new_idx = existing.len() + 1;
-        for (name, test) in tests {
-            let path = match existing.get(name) {
-                Some((path, _test)) => path.clone(),
-                None => {
-                    let file_name = format!("{new_idx:04}_{name}.rs");
-                    new_idx += 1;
-                    tests_dir.join(file_name)
+        let ok_tests = tests.ok.keys().sorted().map(|k| {
+            let test_name = quote::format_ident!("{}", k);
+            let test_file = format!("test_data/parser/inline/ok/{test_name}.rs");
+            quote::quote! {
+                #[test]
+                fn #test_name() {
+                    run_and_expect_no_errors(#test_file);
                 }
-            };
-            ensure_file_contents(crate::flags::CodegenType::ParserTests, &path, &test.text, check);
+            }
+        });
+        let err_tests = tests.err.keys().sorted().map(|k| {
+            let test_name = quote::format_ident!("{}", k);
+            let test_file = format!("test_data/parser/inline/err/{test_name}.rs");
+            quote::quote! {
+                #[test]
+                fn #test_name() {
+                    run_and_expect_errors(#test_file);
+                }
+            }
+        });
+
+        let output = quote::quote! {
+            mod ok {
+                use crate::tests::run_and_expect_no_errors;
+                #(#ok_tests)*
+            }
+            mod err {
+                use crate::tests::run_and_expect_errors;
+                #(#err_tests)*
+            }
+        };
+
+        let pretty = reformat(output.to_string());
+        ensure_file_contents(
+            crate::flags::CodegenType::ParserTests,
+            format!("{PARSER_TEST_DATA}/generated/runner.rs").as_ref(),
+            &pretty,
+            check,
+        );
+    }
+}
+
+fn install_tests(tests: &HashMap<String, Test>, into: &str, check: bool) -> Result<bool> {
+    let tests_dir = project_root().join(into);
+    if !tests_dir.is_dir() {
+        fs::create_dir_all(&tests_dir)?;
+    }
+    let existing = existing_tests(&tests_dir, TestKind::Ok)?;
+    if let Some((t, (path, _))) = existing.iter().find(|&(t, _)| !tests.contains_key(t)) {
+        panic!("Test `{t}` is deleted: {}", path.display());
+    }
+
+    let mut some_file_was_updated = false;
+
+    for (name, test) in tests {
+        let path = match existing.get(name) {
+            Some((path, _test)) => path.clone(),
+            None => tests_dir.join(name).with_extension("rs"),
+        };
+        if ensure_file_contents(crate::flags::CodegenType::ParserTests, &path, &test.text, check) {
+            some_file_was_updated = true;
         }
     }
+
+    Ok(some_file_was_updated)
 }
 
 #[derive(Debug)]
 struct Test {
-    name: String,
-    text: String,
-    ok: bool,
+    pub name: String,
+    pub text: String,
+    pub kind: TestKind,
+}
+
+#[derive(Copy, Clone, Debug)]
+enum TestKind {
+    Ok,
+    Err,
 }
 
 #[derive(Default, Debug)]
 struct Tests {
-    ok: HashMap<String, Test>,
-    err: HashMap<String, Test>,
+    pub ok: HashMap<String, Test>,
+    pub err: HashMap<String, Test>,
 }
 
 fn collect_tests(s: &str) -> Vec<Test> {
     let mut res = Vec::new();
     for comment_block in CommentBlock::extract_untagged(s) {
         let first_line = &comment_block.contents[0];
-        let (name, ok) = if let Some(name) = first_line.strip_prefix("test ") {
-            (name.to_owned(), true)
+        let (name, kind) = if let Some(name) = first_line.strip_prefix("test ") {
+            (name.to_owned(), TestKind::Ok)
         } else if let Some(name) = first_line.strip_prefix("test_err ") {
-            (name.to_owned(), false)
+            (name.to_owned(), TestKind::Err)
         } else {
             continue;
         };
@@ -78,7 +142,7 @@ fn collect_tests(s: &str) -> Vec<Test> {
             .collect::<Vec<_>>()
             .join("\n");
         assert!(!text.trim().is_empty() && text.ends_with('\n'));
-        res.push(Test { name, text, ok })
+        res.push(Test { name, text, kind })
     }
     res
 }
@@ -96,7 +160,7 @@ fn tests_from_dir(dir: &Path) -> Tests {
         let text = fs::read_to_string(path).unwrap();
 
         for test in collect_tests(&text) {
-            if test.ok {
+            if let TestKind::Ok = test.kind {
                 if let Some(old_test) = res.ok.insert(test.name.clone(), test) {
                     panic!("Duplicate test: {}", old_test.name);
                 }
@@ -107,25 +171,22 @@ fn tests_from_dir(dir: &Path) -> Tests {
     }
 }
 
-fn existing_tests(dir: &Path, ok: bool) -> HashMap<String, (PathBuf, Test)> {
-    let mut res = HashMap::default();
-    for file in fs::read_dir(dir).unwrap() {
-        let file = file.unwrap();
-        let path = file.path();
-        if path.extension().unwrap_or_default() != "rs" {
-            continue;
-        }
-        let name = {
-            let file_name = path.file_name().unwrap().to_str().unwrap();
-            file_name[5..file_name.len() - 3].to_string()
-        };
-        let text = fs::read_to_string(&path).unwrap();
-        let test = Test { name: name.clone(), text, ok };
-        if let Some(old) = res.insert(name, (path, test)) {
-            println!("Duplicate test: {old:?}");
+fn existing_tests(dir: &Path, ok: TestKind) -> Result<HashMap<String, (PathBuf, Test)>> {
+    let mut res = HashMap::new();
+    for file in fs::read_dir(dir)? {
+        let path = file?.path();
+        let rust_file = path.extension().and_then(|ext| ext.to_str()) == Some("rs");
+
+        if rust_file {
+            let name = path.file_stem().map(|x| x.to_string_lossy().to_string()).unwrap();
+            let text = fs::read_to_string(&path)?;
+            let test = Test { name: name.clone(), text, kind: ok };
+            if let Some(old) = res.insert(name, (path, test)) {
+                println!("Duplicate test: {:?}", old);
+            }
         }
     }
-    res
+    Ok(res)
 }
 
 #[test]