From 6fd35a3fb86ef18018de7209789df2f0b4bac90b Mon Sep 17 00:00:00 2001
From: Adam Wulkiewicz <adam.wulkiewicz@gmail.com>
Date: Wed, 18 Mar 2015 17:25:57 +0100
Subject: [PATCH] [test][util] Generate custom error message in
 select_most_precise test.

---
 test/util/select_most_precise.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/test/util/select_most_precise.cpp b/test/util/select_most_precise.cpp
index 11b066fa3..ec93b5f25 100644
--- a/test/util/select_most_precise.cpp
+++ b/test/util/select_most_precise.cpp
@@ -24,8 +24,15 @@ template <typename T1, typename T2, typename ExpectedType>
 void test()
 {
     typedef typename bg::select_most_precise<T1, T2>::type type;
+    bool is_same = boost::is_same<type, ExpectedType>::type::value;
 
-    BOOST_CHECK((boost::is_same<type, ExpectedType>::type::value));
+    BOOST_CHECK_MESSAGE(is_same,
+                        "The most precise of types "
+                        "T1: {" << typeid(T1).name() << " | s: " << sizeof(T1) << "}" <<
+                        " and "
+                        "T2: {" << typeid(T2).name() << " | s: " << sizeof(T2) << "}" <<
+                        " does not match "
+                        "ExpectedType: {" << typeid(ExpectedType).name() << " | s: " << sizeof(ExpectedType) << "}");
 }
 
 int test_main(int, char* [])