From bd58c2d229bea091639a3a8c35cc46b39f225021 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Thu, 14 Mar 2013 23:08:40 +0000
Subject: [PATCH] Added BOOST_TEST_THROWS

[SVN r83433]
---
 include/boost/detail/lightweight_test.hpp | 65 +++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/include/boost/detail/lightweight_test.hpp b/include/boost/detail/lightweight_test.hpp
index dbd99b9..49dd5e4 100644
--- a/include/boost/detail/lightweight_test.hpp
+++ b/include/boost/detail/lightweight_test.hpp
@@ -12,21 +12,61 @@
 //
 //  Copyright (c) 2002, 2009 Peter Dimov
 //  Copyright (2) Beman Dawes 2010, 2011
+//  Copyright (3) Ion Gaztanaga 2013
 //
 //  Distributed under the Boost Software License, Version 1.0.
 //  See accompanying file LICENSE_1_0.txt or copy at
 //  http://www.boost.org/LICENSE_1_0.txt
 //
+//    ---------------
+//
+//    If expression is false increases the error count 
+//    and outputs a message containing 'expression'
+//
 //  BOOST_TEST(expression)
+//
+//    ---------------
+//
+//    Increases error count and outputs a message containing 'message'
+//
 //  BOOST_ERROR(message)
+//
+//    ---------------
+//
+//    If 'expr1' != 'expr2' increases the error count 
+//    and outputs a message containing both expressions
+//
 //  BOOST_TEST_EQ(expr1, expr2)
 //
+//    ---------------
+//
+//    If 'expr1' == 'expr2' increases the error count 
+//    and outputs a message containing both expressions
+//
+//  BOOST_TEST_NE(expr1, expr2)
+//
+//    ---------------
+//
+//    If BOOST_NO_EXCEPTIONS is NOT defined and if 'expr' does not
+//    throw an exception of type 'excep', increases the error count
+//    and outputs a message containing the expression.
+//
+//    If BOOST_NO_EXCEPTIONS is defined, this macro expands to nothing
+//    and 'expr' is not evaluated.
+//
+//  BOOST_TEST_THROWS(expr, excep)
+//
+//    ---------------
+//
+//    Returns the error count
+//
 //  int boost::report_errors()
 //
 
 #include <iostream>
 #include <boost/current_function.hpp>
 #include <boost/assert.hpp>
+#include <boost/detail/no_exceptions_support.hpp>
 
 //  IDE's like Visual Studio perform better if output goes to std::cout or
 //  some other stream, so allow user to configure output stream:
@@ -79,6 +119,14 @@ inline void error_impl(char const * msg, char const * file, int line, char const
     ++test_errors();
 }
 
+inline void throw_failed_impl(char const * excep, char const * file, int line, char const * function)
+{
+   BOOST_LIGHTWEIGHT_TEST_OSTREAM
+    << file << "(" << line << "): Exception '" << excep << "' not thrown in function '"
+    << function << "'" << std::endl;
+   ++test_errors();
+}
+
 template<class T, class U> inline void test_eq_impl( char const * expr1, char const * expr2,
   char const * file, int line, char const * function, T const & t, U const & u )
 {
@@ -139,5 +187,22 @@ inline int report_errors()
 #define BOOST_ERROR(msg) ::boost::detail::error_impl(msg, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION)
 #define BOOST_TEST_EQ(expr1,expr2) ( ::boost::detail::test_eq_impl(#expr1, #expr2, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION, expr1, expr2) )
 #define BOOST_TEST_NE(expr1,expr2) ( ::boost::detail::test_ne_impl(#expr1, #expr2, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION, expr1, expr2) )
+#ifndef BOOST_NO_EXCEPTIONS
+   #define BOOST_TEST_THROWS( EXPR, EXCEP )                    \
+      try {                                                    \
+         EXPR;                                                 \
+         ::boost::detail::throw_failed_impl                    \
+         (#EXCEP, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION); \
+      }                                                        \
+      catch(EXCEP const&) {                                    \
+      }                                                        \
+      catch(...) {                                             \
+         ::boost::detail::throw_failed_impl                    \
+         (#EXCEP, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION); \
+      }                                                        \
+   //
+#else
+   #define BOOST_TEST_THROWS( EXPR, EXCEP )
+#endif
 
 #endif // #ifndef BOOST_DETAIL_LIGHTWEIGHT_TEST_HPP_INCLUDED