From b3b8b7e007a8b1b8e58518018d1644c700621117 Mon Sep 17 00:00:00 2001
From: Josh <keeperofdakeys@gmail.com>
Date: Wed, 18 Jan 2017 10:48:35 +1100
Subject: [PATCH] Add tests for doc testing proc macro crates

---
 tests/proc-macro.rs | 54 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/tests/proc-macro.rs b/tests/proc-macro.rs
index 59dc96e21..dda231581 100644
--- a/tests/proc-macro.rs
+++ b/tests/proc-macro.rs
@@ -178,3 +178,57 @@ fn plugin_and_proc_macro() {
     assert_that(questionable.cargo_process("build"),
                 execs().with_status(101).with_stderr_contains(msg));
 }
+
+#[test]
+fn proc_macro_doctest() {
+    if !is_nightly() {
+        return
+    }
+    let foo = project("foo")
+        .file("Cargo.toml", r#"
+            [package]
+            name = "foo"
+            version = "0.1.0"
+            authors = []
+            [lib]
+            proc-macro = true
+        "#)
+        .file("src/lib.rs", r#"
+#![feature(proc_macro, proc_macro_lib)]
+#![crate_type = "proc-macro"]
+
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+
+/// ```
+/// assert!(true);
+/// ```
+#[proc_macro_derive(Bar)]
+pub fn derive(_input: TokenStream) -> TokenStream {
+    "".parse().unwrap()
+}
+
+#[test]
+fn a() {
+  assert!(true);
+}
+"#);
+    foo.build();
+
+    assert_that(foo.cargo_process("test"),
+                execs().with_status(0)
+                       .with_stdout_contains("\
+running 1 test
+test a ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured
+
+").with_stdout_contains("\
+running 1 test
+test derive_0 ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured
+
+"));
+}
-- 
2.30.2