Ignore inline mod foo; modules

Author: blyxyas

clippy_lints/src/items_after_test_module.rs

@@ -44,6 +44,7 @@ declare_lint_pass!(ItemsAfterTestModule => [ITEMS_AFTER_TEST_MODULE]);
 impl LateLintPass<'_> for ItemsAfterTestModule {
     fn check_mod(&mut self, cx: &LateContext<'_>, _: &Mod<'_>, _: HirId) {
         let mut was_test_mod_visited = false;
+        let mut test_span: Option<Span> = None;
         let mut when_was_visited = 0;
 
         let hir = cx.tcx.hir();
@@ -53,29 +54,32 @@ impl LateLintPass<'_> for ItemsAfterTestModule {
             let item = hir.item(*itid);
 
             if_chain! {
-                if was_test_mod_visited;
-                if !matches!(item.kind, ItemKind::Mod(_) | ItemKind::Use(_, _));
-                if !is_in_cfg_test(cx.tcx, itid.hir_id()); // The item isn't in the testing module itself
-                if !in_external_macro(cx.sess(), item.span);
-                then {
-                    was_test_mod_visited = false;
-                    span_lint_and_then(cx, ITEMS_AFTER_TEST_MODULE, item.span, "an item was found after the testing module", |diag| {
-                        diag.multipart_suggestion("move the item to before the testing module was defined", vec![
-                            (item.span, String::new()), // Remove the item
-                            (
-                                Span::new(
+            if was_test_mod_visited;
+            if cx.sess().source_map().lookup_char_pos(item.span.lo()).file.name_hash ==
+                cx.sess().source_map().lookup_char_pos(test_span.unwrap().lo()).file.name_hash;
+            if !matches!(item.kind, ItemKind::Mod(_));
+            if !is_in_cfg_test(cx.tcx, itid.hir_id()); // The item isn't in the testing module itself
+
+            if !in_external_macro(cx.sess(), item.span);
+            then {
+                was_test_mod_visited = false;
+                span_lint_and_then(cx, ITEMS_AFTER_TEST_MODULE, item.span, "an item was found after the testing module", |diag| {
+                    diag.multipart_suggestion("move the item to before the testing module was defined", vec![
+                        (item.span, String::new()), // Remove the item
+                        (
+                            Span::new(
                                 hir.item(items[when_was_visited - 1]).span.hi() + BytePos(1),
                                 hir.item(items[when_was_visited]).span.lo() - BytePos(1),
                                 item.span.ctxt(), item.span.parent()),
 
-                                format!("\n{}\n", snippet(cx, item.span, ".."))
-                            ) // ^ Copy the item to the new location
+                            format!("\n{}\n", snippet(cx, item.span, ".."))
+                        ) // ^ Copy the item to the new location
                         ], Applicability::MachineApplicable);
                     });
                 }
             }
 
-            if matches!(item.kind, ItemKind::Mod(_)) {
+            if let ItemKind::Mod(mod_item) = item.kind {
                 for attr in cx.tcx.get_attrs(item.owner_id.to_def_id(), sym::cfg) {
                     if_chain! {
                         if attr.has_name(sym::cfg);
@@ -84,6 +88,7 @@ impl LateLintPass<'_> for ItemsAfterTestModule {
                         if mitem.has_name(sym::test);
                         then {
                             was_test_mod_visited = true;
+                           test_span = Some(mod_item.spans.inject_use_span);
                             when_was_visited = i;
                         }
                     }

tests/ui/items_after_test_module.fixed renamed to tests/ui/items_after_test_modules/items_after_test_module.fixed

@@ -3,6 +3,8 @@
 #![allow(unused)]
 #![warn(clippy::items_after_test_module)]
 
+mod my_mod;
+
 fn main() {}
 
 fn should_not_lint() {}

tests/ui/items_after_test_module.rs renamed to tests/ui/items_after_test_modules/items_after_test_module.rs

@@ -3,6 +3,8 @@
 #![allow(unused)]
 #![warn(clippy::items_after_test_module)]
 
+mod my_mod;
+
 fn main() {}
 
 fn should_not_lint() {}

tests/ui/items_after_test_module.stderr renamed to tests/ui/items_after_test_modules/items_after_test_module.stderr

@@ -1,5 +1,5 @@
 error: an item was found after the testing module
-  --> $DIR/items_after_test_module.rs:16:1
+  --> $DIR/items_after_test_module.rs:18:1
    |
 LL | fn should_lint() {}
    | ^^^^^^^^^^^^^^^^^^^

tests/ui/items_after_test_modules/my_mod.rs

@@ -0,0 +1,6 @@
+fn main() {}
+
+#[cfg(test)]
+mod my_test {
+    fn my_test() {}
+}