Handle macros in `TestDB::check_diagnostics`

1 files changed, 9 insertions, 2 deletions

diff --git a/crates/hir_def/src/test_db.rs b/crates/hir_def/src/test_db.rs
index 00fe711fe..59c788b18 100644
--- a/crates/hir_def/src/test_db.rs
+++ b/crates/hir_def/src/test_db.rs
@@ -157,9 +157,16 @@ impl TestDB {
         db.diagnostics(|d| {
             let src = d.display_source();
             let root = db.parse_or_expand(src.file_id).unwrap();
-            // FIXME: macros...
+
+            // Place all diagnostics emitted in macro files on the original caller.
+            // Note that this does *not* match IDE behavior.
+            let mut src = src.map(|ptr| ptr.to_node(&root));
+            while let Some(exp) = src.file_id.call_node(db) {
+                src = exp;
+            }
+
             let file_id = src.file_id.original_file(db);
-            let range = src.value.to_node(&root).text_range();
+            let range = src.value.text_range();
             let message = d.message().to_owned();
             actual.entry(file_id).or_default().push((range, message));
         });