Add Google Test value printers.

For easier debugging test failures.

CMakeLists.txt

@@ -156,6 +156,7 @@ set (LOOT_API_HEADERS ${LOOT_HEADERS}
 set (LOOT_TESTS_SRC "${CMAKE_SOURCE_DIR}/src/tests/main.cpp")
 
 set (LOOT_TESTS_HEADERS "${CMAKE_SOURCE_DIR}/src/tests/fixtures.h"
+                        "${CMAKE_SOURCE_DIR}/src/tests/printers.h"
                         "${CMAKE_SOURCE_DIR}/src/tests/api/test_api.h"
                         "${CMAKE_SOURCE_DIR}/src/tests/backend/game/test_game.h"
                         "${CMAKE_SOURCE_DIR}/src/tests/backend/game/test_game_settings.h"

src/tests/fixtures.h

@@ -26,6 +26,7 @@ along with LOOT.  If not, see
 #define LOOT_TEST_FIXTURES
 
 #include "backend/helpers/streams.h"
+#include "printers.h"
 
 #include <gtest/gtest.h>
 

src/tests/printers.h

@@ -0,0 +1,113 @@
+/*  LOOT
+
+A load order optimisation tool for Oblivion, Skyrim, Fallout 3 and
+Fallout: New Vegas.
+
+Copyright (C) 2013-2015    WrinklyNinja
+
+This file is part of LOOT.
+
+LOOT is free software: you can redistribute
+it and/or modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation, either version 3 of
+the License, or (at your option) any later version.
+
+LOOT is distributed in the hope that it will
+be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with LOOT.  If not, see
+<http://www.gnu.org/licenses/>.
+*/
+
+#ifndef LOOT_TEST_PRINTERS
+#define LOOT_TEST_PRINTERS
+
+#include <iostream>
+
+#include <gtest/gtest.h>
+
+#include "backend/metadata/file.h"
+#include "backend/metadata/formid.h"
+#include "backend/metadata/location.h"
+#include "backend/metadata/message.h"
+#include "backend/metadata/message_content.h"
+#include "backend/metadata/plugin_dirty_info.h"
+#include "backend/metadata/plugin_metadata.h"
+#include "backend/metadata/tag.h"
+#include "backend/plugin/plugin.h"
+
+namespace loot {
+    void PrintTo(const File& value, ::std::ostream* os) {
+        *os << "loot::File(\"" << value.Name() << "\", "
+            << "\"" << value.DisplayName() << "\", "
+            << "\"" << value.Condition() << "\""
+            << ")";
+    }
+
+    void PrintTo(const FormID& value, ::std::ostream* os) {
+        *os << "loot::FormID(\"" << value.Plugin() << "\", 0x"
+            << std::hex << std::uppercase
+            << value.Id()
+            << std::nouppercase << std::dec
+            << ")";
+    }
+
+    void PrintTo(const Location& value, ::std::ostream* os) {
+        *os << "loot::Location(\"" << value.URL() << "\", "
+            << ::testing::PrintToString(value.Versions())
+            << ")";
+    }
+
+    void PrintTo(const Message& value, ::std::ostream* os) {
+        std::string type;
+        if (value.Type() == Message::warn)
+            type = "warn";
+        else if (value.Type() == Message::error)
+            type = "error";
+        else
+            type = "say";
+
+        *os << "loot::Message(\"" << type << "\", "
+            << ::testing::PrintToString(value.Content()) << ", "
+            << "\"" << value.Condition() << "\""
+            << ")";
+    }
+
+    void PrintTo(const MessageContent& value, ::std::ostream* os) {
+        *os << "loot::MessageContent(\"" << value.Str() << "\", "
+            << "\"" << Language(value.Language()).Name() << "\""
+            << ")";
+    }
+
+    void PrintTo(const PluginDirtyInfo& value, ::std::ostream* os) {
+        *os << "loot::PluginDirtyInfo(0x"
+            << std::hex << std::uppercase
+            << value.CRC()
+            << std::nouppercase << std::dec << ", "
+            << value.ITMs() << ", "
+            << value.DeletedRefs() << ", "
+            << value.DeletedNavmeshes() << ", "
+            << "\"" << value.CleaningUtility() << "\""
+            << ")";
+    }
+
+    void PrintTo(const PluginMetadata& value, ::std::ostream* os) {
+        *os << "loot::PluginMetadata(\"" << value.Name() << "\")";
+    }
+
+    void PrintTo(const Tag& value, ::std::ostream* os) {
+        *os << "loot::Tag(\"" << value.Name() << "\", "
+            << value.IsAddition() << ", "
+            << "\"" << value.Condition() << "\""
+            << ")";
+    }
+
+    void PrintTo(const Plugin& value, ::std::ostream* os) {
+        *os << "loot::Plugin(\"" << value.Name() << "\")";
+    }
+}
+
+#endif