Add tests

src/test/compile-fail/privacy-in-paths.rs

@@ -0,0 +1,40 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+mod foo {
+    pub use self::bar::S;
+    mod bar {
+        pub struct S;
+        pub use baz;
+    }
+
+    trait T {
+        type Assoc;
+    }
+    impl T for () {
+        type Assoc = S;
+    }
+}
+
+impl foo::S {
+    fn f() {}
+}
+
+pub mod baz {
+    fn f() {}
+
+    fn g() {
+        ::foo::bar::baz::f(); //~ERROR module `bar` is private
+        ::foo::bar::S::f(); //~ERROR module `bar` is private
+        <() as ::foo::T>::Assoc::f(); //~ERROR trait `T` is private
+    }
+}
+
+fn main() {}

src/test/compile-fail/private-impl-method.rs

@@ -18,7 +18,14 @@ mod a {
     }
 }
 
+fn f() {
+    impl a::Foo {
+        fn bar(&self) {} // This should be visible outside `f`
+    }
+}
+
 fn main() {
     let s = a::Foo { x: 1 };
+    s.bar();
     s.foo();    //~ ERROR method `foo` is private
 }