From fbc49bbaa070af37bcb8b63cab996a22b2fb2203 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sun, 13 Jun 2021 19:51:02 +0300
Subject: [PATCH] Add more tests to std_interop_test3

---
 test/std_interop_test3.cpp | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/test/std_interop_test3.cpp b/test/std_interop_test3.cpp
index 9584bd7..e4ace9e 100644
--- a/test/std_interop_test3.cpp
+++ b/test/std_interop_test3.cpp
@@ -21,40 +21,56 @@ int main()
     {
         std::error_code e1;
         boost::system::error_code e2 = e1;
-        std::error_code e3 = e2;
 
+        BOOST_TEST( !e2.failed() );
+        BOOST_TEST_EQ( e1.message(), e2.message() );
+
+        std::error_code e3 = e2;
         BOOST_TEST_EQ( e1, e3 );
     }
 
     {
         std::error_code e1( 5, std::system_category() );
         boost::system::error_code e2 = e1;
-        std::error_code e3 = e2;
 
+        BOOST_TEST( e2.failed() );
+        BOOST_TEST_EQ( e1.message(), e2.message() );
+
+        std::error_code e3 = e2;
         BOOST_TEST_EQ( e1, e3 );
     }
 
     {
         std::error_code e1( 0, std::generic_category() );
         boost::system::error_code e2 = e1;
-        std::error_code e3 = e2;
 
+        BOOST_TEST( !e2.failed() );
+        BOOST_TEST_EQ( e1.message(), e2.message() );
+
+        std::error_code e3 = e2;
         BOOST_TEST_EQ( e1, e3 );
     }
 
     {
         std::error_code e1( ENOENT, std::generic_category() );
         boost::system::error_code e2 = e1;
-        std::error_code e3 = e2;
 
+        BOOST_TEST( e2.failed() );
+        BOOST_TEST_EQ( e1.message(), e2.message() );
+
+        std::error_code e3 = e2;
         BOOST_TEST_EQ( e1, e3 );
     }
 
     {
-        boost::system::error_code e2 = make_error_code( std::errc::no_such_file_or_directory );
-        std::error_code e3 = e2;
+        std::error_code e1 = make_error_code( std::errc::no_such_file_or_directory );
+        boost::system::error_code e2 = e1;
 
-        BOOST_TEST_EQ( make_error_code( std::errc::no_such_file_or_directory ), e3 );
+        BOOST_TEST( e2.failed() );
+        BOOST_TEST_EQ( e1.message(), e2.message() );
+
+        std::error_code e3 = e2;
+        BOOST_TEST_EQ( e1, e3 );
     }
 
     return boost::report_errors();