custom tostring formatter to CPPUNIT_ASSERT_MESSAGE

Provide an extension trait message_to_string that allows client code
to call ASSERT_MESSAGE with their own string types.

Also provide a default extension trait that accepts std::ostream
messages.

Change-Id: I516f97063c34d86bc91c40e0ec147d5393e7b6ea

1 files changed, 5 insertions, 0 deletions

diff --git a/examples/cppunittest/MessageTest.h b/examples/cppunittest/MessageTest.h
index 4c757e8..6fc2237 100644
--- a/examples/cppunittest/MessageTest.h
+++ b/examples/cppunittest/MessageTest.h
@@ -28,6 +28,8 @@ class MessageTest : public CPPUNIT_NS::TestFixture
   CPPUNIT_TEST( testDetailsSome );
   CPPUNIT_TEST( testEqual );
   CPPUNIT_TEST( testNotEqual );
+  CPPUNIT_TEST( testCustomMessageType );
+  CPPUNIT_TEST( testOStreamMessage );
   CPPUNIT_TEST_SUITE_END();
 
 public:
@@ -60,6 +62,9 @@ public:
   void testEqual();
   void testNotEqual();
 
+  void testCustomMessageType();
+  void testOStreamMessage();
+
 private:
   /// Prevents the use of the copy constructor.
   MessageTest( const MessageTest &other );