Fixed some paths and stubbed new_from_ini

src/CMakeLists.txt

@@ -380,10 +380,11 @@ if (SLIC3R_BUILD_TESTS)
         target_include_directories(Catch INTERFACE ${CMAKE_BINARY_DIR}/external/Catch/include)
         target_compile_definitions(Catch INTERFACE $<$<CXX_COMPILER_ID:MSVC>:_SILENCE_CXX17_UNCAUGHT_EXCEPTION_DEPRECATION_WARNING>)
     endif()
-    include_directories(${LIBDIR}/test)
+    include_directories(${TESTDIR})
     configure_file("${TESTDIR}/test_options.hpp.in" "${TESTDIR}/test_options.hpp")
     add_executable(slic3r_test ${SLIC3R_TEST_SOURCES}) 
     add_test(NAME TestSlic3r COMMAND slic3r_test)
+    target_compile_features(slic3r_test PUBLIC cxx_std_14)
 
     target_link_libraries(slic3r_test PUBLIC libslic3r Catch ${LIBSLIC3R_DEPENDS})
 endif()

src/test/libslic3r/test_config.cpp

@@ -1,12 +1,12 @@
 #include <catch.hpp>
 
 #include "Config.hpp"
-#include <test_paths.hpp>
+#include <test_options.hpp>
 
 #include <string>
 
 using namespace Slic3r;
-using namespace std::string_literals;
+using namespace std::literals::string_literals;
 
 SCENARIO("Generic config validation performs as expected.", "[!mayfail]") {
     GIVEN("A config generated from default options") {
@@ -101,7 +101,7 @@ SCENARIO("Config accessor functions perform as expected.", "[!mayfail]") {
 
 SCENARIO("Config ini load/save interface", "[!mayfail]") {
     WHEN("new_from_ini is called") {
-        auto config {Slic3r::Config::new_from_config(std::string(testfile_dir) + "test_config/new_from_ini.ini"s) };
+        auto config {Slic3r::Config::new_from_ini(std::string(testfile_dir) + "test_config/new_from_ini.ini"s) };
         THEN("Config object contains ini file options.") {
         }
     }

xs/src/libslic3r/Config.cpp

@@ -35,6 +35,15 @@ new_from_cli(const int& argc, const char* argv[])
     return std::make_shared<Config>();
 }
 
+std::shared_ptr<Config> 
+Config::new_from_ini(const std::string& inifile) 
+{ 
+    
+    auto my_config(std::make_shared<Config>());
+    my_config->read_ini(inifile);
+    return my_config;
+}
+
 bool
 Config::validate()
 {

xs/src/libslic3r/Config.hpp

@@ -40,6 +40,9 @@ public:
     /// Factory method to construct a Config from CLI options.
     static std::shared_ptr<Config> new_from_cli(const int& argc, const char* argv[]);
 
+    /// Factory method to construct a Config from an ini file.
+    static std::shared_ptr<Config> new_from_ini(const std::string& inifile);
+
     /// Write a windows-style opt=value ini file with categories from the configuration store.
     void write_ini(const std::string& file) const;