1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/resolve/auxiliary/issue-21221-3.rs b/src/test/ui/resolve/auxiliary/issue-21221-3.rs
new file mode 100644
index 000000000..176c23180
--- /dev/null
+++ b/src/test/ui/resolve/auxiliary/issue-21221-3.rs
@@ -0,0 +1,19 @@
+// testing whether the lookup mechanism picks up types
+// defined in the outside crate
+
+#![crate_type="lib"]
+
+pub mod outer {
+    // should suggest this
+    pub trait OuterTrait {}
+
+    // should not suggest this since the module is private
+    mod private_module {
+        pub trait OuterTrait {}
+    }
+
+    // should not suggest since the trait is private
+    pub mod public_module {
+        trait OuterTrait {}
+    }
+}