From 53527b804b07cfb9d5769d01462eeea2bdbef439 Mon Sep 17 00:00:00 2001
From: Simon Brand <simon@codeplay.com>
Date: Wed, 22 Aug 2018 15:09:59 +0100
Subject: [PATCH] Add test for issue 23

---
 .travis.yml      | 1 -
 tests/issues.cpp | 9 +++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index dab821b..2359d7b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -143,7 +143,6 @@ matrix:
           packages:
              - g++-5
       env: COMPILER=g++-5 CXXSTD=14
-
     - compiler: gcc
       addons:
         apt:
diff --git a/tests/issues.cpp b/tests/issues.cpp
index dcb37d8..8eef3a5 100644
--- a/tests/issues.cpp
+++ b/tests/issues.cpp
@@ -26,6 +26,15 @@ TEST_CASE("Issue 17", "[issues.17]") {
 struct a {};
 struct b : a {};
 
+auto doit() -> tl::expected<std::unique_ptr<b>, int> {
+    return tl::make_unexpected(0);
+}
+
+TEST_CASE("Issue 23", "[issues.23]") {
+    tl::expected<std::unique_ptr<a>, int> msg = doit();
+    REQUIRE(!msg.has_value());    
+}
+
 TEST_CASE("Issue 26", "[issues.26]") {
   tl::expected<a, int> exp = tl::expected<b, int>(tl::unexpect, 0);
   REQUIRE(!exp.has_value());