From 694699503a346822ae8453e93c9f327d01fe6f55 Mon Sep 17 00:00:00 2001
From: "Felix S. Klock II" <pnkfelix@pnkfx.org>
Date: Wed, 16 Dec 2015 16:40:19 +0100
Subject: [PATCH] unit test for new error help.

---
 .../suggest-path-instead-of-mod-dot-item.rs   | 60 +++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 src/test/compile-fail/suggest-path-instead-of-mod-dot-item.rs

diff --git a/src/test/compile-fail/suggest-path-instead-of-mod-dot-item.rs b/src/test/compile-fail/suggest-path-instead-of-mod-dot-item.rs
new file mode 100644
index 000000000000..ecf17fa84d7e
--- /dev/null
+++ b/src/test/compile-fail/suggest-path-instead-of-mod-dot-item.rs
@@ -0,0 +1,60 @@
+// Copyright 2015 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.
+
+// Beginners write `mod.item` when they should write `mod::item`.
+// This tests that we suggest the latter when we encounter the former.
+
+pub mod a {
+    pub const I: i32 = 1;
+
+    pub fn f() -> i32 { 2 }
+
+    pub mod b {
+        pub const J: i32 = 3;
+
+        pub fn g() -> i32 { 4 }
+    }
+}
+
+fn h1() -> i32 {
+    a.I
+        //~^ ERROR E0425
+        //~| HELP To reference an item from the `a` module, use `a::I`
+}
+
+fn h2() -> i32 {
+    a.g()
+        //~^ ERROR E0425
+        //~| HELP To call a function from the `a` module, use `a::g(..)`
+}
+
+fn h3() -> i32 {
+    a.b.J
+        //~^ ERROR E0425
+        //~| HELP To reference an item from the `a` module, use `a::b`
+}
+
+fn h4() -> i32 {
+    a::b.J
+        //~^ ERROR E0425
+        //~| HELP To reference an item from the `a::b` module, use `a::b::J`
+}
+
+fn h5() -> i32 {
+    a.b.f()
+        //~^ ERROR E0425
+        //~| HELP To reference an item from the `a` module, use `a::b`
+}
+
+fn h6() -> i32 {
+    a::b.f()
+        //~^ ERROR E0425
+        //~| HELP To call a function from the `a::b` module, use `a::b::f(..)`
+}