Add Test for new item resolution

crates/ra_hir/src/nameres/tests.rs

@@ -7,6 +7,7 @@ use std::sync::Arc;
 use ra_db::SourceDatabase;
 use test_utils::covers;
 use insta::assert_snapshot_matches;
+use either::Either;
 
 use crate::{
     Crate,
@@ -35,10 +36,22 @@ fn render_crate_def_map(map: &CrateDefMap) -> String {
         *buf += path;
         *buf += "\n";
 
-        let mut entries = map.modules[module].scope.items.iter().collect::<Vec<_>>();
+        let items =
+            map.modules[module].scope.items.iter().map(|(name, it)| (name, Either::Left(it)));
+        let macros =
+            map.modules[module].scope.macros.iter().map(|(name, m)| (name, Either::Right(m)));
+        let mut entries = items.chain(macros).collect::<Vec<_>>();
+
         entries.sort_by_key(|(name, _)| *name);
         for (name, res) in entries {
-            *buf += &format!("{}: {}\n", name, dump_resolution(res))
+            match res {
+                Either::Left(it) => {
+                    *buf += &format!("{}: {}\n", name, dump_resolution(it));
+                }
+                Either::Right(_) => {
+                    *buf += &format!("{}: m\n", name);
+                }
+            }
         }
         for (name, child) in map.modules[module].children.iter() {
             let path = path.to_string() + &format!("::{}", name);

crates/ra_hir/src/nameres/tests/macros.rs

@@ -92,3 +92,43 @@ fn macro_rules_from_other_crates_are_visible() {
    ⋮bar: t
     "###);
 }
+
+#[test]
+fn unexpanded_macro_should_expand_by_fixedpoint_loop() {
+    let map = def_map_with_crate_graph(
+        "
+        //- /main.rs      
+        macro_rules! baz {
+            () => {
+                use foo::bar;                
+            }
+        }
+        
+        foo!();              
+        bar!();
+        baz!();
+
+        //- /lib.rs
+        #[macro_export]
+        macro_rules! foo {
+            () => {
+                struct Foo { field: u32 } 
+            }
+        }
+        #[macro_export]
+        macro_rules! bar {
+            () => {
+                use foo::foo;
+            }
+        }
+        ",
+        crate_graph! {
+            "main": ("/main.rs", ["foo"]),
+            "foo": ("/lib.rs", []),
+        },
+    );
+    assert_snapshot_matches!(map, @r###"crate
+Foo: t v
+bar: m
+foo: m"###);
+}