From 213d208e2d61576e104a9d5e003efc4ad1abc469 Mon Sep 17 00:00:00 2001
From: Edwin Cheng <edwin0cheng@gmail.com>
Date: Tue, 28 Apr 2020 02:10:17 +0800
Subject: Add test

---
 crates/ra_hir_ty/src/tests/macros.rs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'crates/ra_hir_ty')

diff --git a/crates/ra_hir_ty/src/tests/macros.rs b/crates/ra_hir_ty/src/tests/macros.rs
index 4f82ff702..ac5485bc9 100644
--- a/crates/ra_hir_ty/src/tests/macros.rs
+++ b/crates/ra_hir_ty/src/tests/macros.rs
@@ -642,6 +642,32 @@ mod clone {
     assert_eq!("S", type_at_pos(&db, pos));
 }
 
+#[test]
+fn infer_derive_clone_in_core() {
+    let (db, pos) = TestDB::with_position(
+        r#"
+//- /main.rs crate:main deps:core
+use core::S;
+fn test() {
+    S.clone()<|>;
+}
+
+//- /lib.rs crate:core
+#[prelude_import]
+use clone::*;
+mod clone {
+    trait Clone {
+        fn clone(&self) -> Self;
+    }
+}
+#[derive(Clone)]
+pub struct S;
+
+"#,
+    );
+    assert_eq!("S", type_at_pos(&db, pos));
+}
+
 #[test]
 fn infer_derive_clone_with_params() {
     let (db, pos) = TestDB::with_position(
-- 
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