From 13cbdf7e7d84e281820500661fdf516a4f663025 Mon Sep 17 00:00:00 2001
From: Andy Sawyer <git@pureabstract.org>
Date: Thu, 4 Sep 2014 00:32:05 +0100
Subject: [PATCH] Add tests for toString(std::tuple<...>)

---
 projects/CMake/CMakeLists.txt       |  6 ++++
 projects/SelfTest/ToStringTuple.cpp | 48 +++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 projects/SelfTest/ToStringTuple.cpp

diff --git a/projects/CMake/CMakeLists.txt b/projects/CMake/CMakeLists.txt
index 952ba43e..240e1ebe 100644
--- a/projects/CMake/CMakeLists.txt
+++ b/projects/CMake/CMakeLists.txt
@@ -6,6 +6,11 @@ project(Catch)
 get_filename_component(CATCH_DIR "${CMAKE_CURRENT_SOURCE_DIR}" PATH)
 get_filename_component(CATCH_DIR "${CATCH_DIR}" PATH)
 set(SELF_TEST_DIR ${CATCH_DIR}/projects/SelfTest)
+if(USE_CPP11)
+  ## We can't turn this on by default, since it breaks on travis
+  message(STATUS "Enabling C++11")
+  set(CMAKE_CXX_FLAGS "-std=c++11 ${CMAKE_CXX_FLAGS}")
+endif()
 
 # define the sources of the self test
 set(SOURCES
@@ -25,6 +30,7 @@ set(SOURCES
     ${SELF_TEST_DIR}/ToStringPair.cpp
     ${SELF_TEST_DIR}/ToStringVector.cpp
     ${SELF_TEST_DIR}/ToStringWhich.cpp
+    ${SELF_TEST_DIR}/ToStringTuple.cpp
 )
 
 # configure the executable
diff --git a/projects/SelfTest/ToStringTuple.cpp b/projects/SelfTest/ToStringTuple.cpp
new file mode 100644
index 00000000..46aa314b
--- /dev/null
+++ b/projects/SelfTest/ToStringTuple.cpp
@@ -0,0 +1,48 @@
+#include "catch.hpp"
+
+#ifdef CATCH_CPP11_OR_GREATER
+
+TEST_CASE( "tuple<>", "[toString][tuple]" )
+{
+    typedef std::tuple<> type;
+    CHECK( "{ }" == Catch::toString(type{}) );
+    type value {};
+    CHECK( "{ }" == Catch::toString(value) );
+}
+
+TEST_CASE( "tuple<int>", "[toString][tuple]" )
+{
+    typedef std::tuple<int> type;
+    CHECK( "{ 0 }" == Catch::toString(type{0}) );
+}
+
+
+TEST_CASE( "tuple<float,int>", "[toString][tuple]" )
+{
+    typedef std::tuple<float,int> type;
+    CHECK( "1.2f" == Catch::toString(float(1.2)) );
+    CHECK( "{ 1.2f, 0 }" == Catch::toString(type{1.2,0}) );
+}
+
+TEST_CASE( "tuple<string,string>", "[toString][tuple]" )
+{
+    typedef std::tuple<std::string,std::string> type;
+    CHECK( "{ \"hello\", \"world\" }" == Catch::toString(type{"hello","world"}) );
+}
+
+TEST_CASE( "tuple<tuple<int>,tuple<>,float>", "[toString][tuple]" )
+{
+    typedef std::tuple<std::tuple<int>,std::tuple<>,float> type;
+    type value { {42}, {}, 1.2f };
+    CHECK( "{ { 42 }, { }, 1.2f }" == Catch::toString(value) );
+}
+
+TEST_CASE( "tuple<nullptr,int,const char *>", "[toString][tuple]" )
+{
+    typedef std::tuple<std::nullptr_t,int,const char *> type;
+    type value { nullptr, 42, "Catch me" };
+    CHECK( "{ nullptr, 42, \"Catch me\" }" == Catch::toString(value) );
+}
+
+#endif /* #ifdef CATCH_CPP11_OR_GREATER */
+