[WIP ] Fix failing Windows XCppTests

.github/workflows/main.yml

@@ -87,6 +87,7 @@ jobs:
           call C:\Users\runneradmin\micromamba-root\condabin\micromamba.bat activate xeus-cpp
           mkdir -p build
           cd build
+          ls "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.29.30133\include"
           cmake .. -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DXEUS_BUILD_TESTS=ON -DDEPENDENCY_SEARCH_PREFIX="%CONDA_PREFIX%\Library" -DCMAKE_PREFIX_PATH="%CONDA_PREFIX%\Library" -DCMAKE_INSTALL_PREFIX="%CONDA_PREFIX%"
 
       - name: cmake configure

test/test_xcpp_kernel.py

@@ -127,11 +127,32 @@ class XCppTests(jupyter_kernel_test.KernelTests):
     }
     #include "xcpp/xdisplay.hpp"
     im::image marie("../notebooks/images/marie.png");
-    xcpp::display(marie);""",
+    xcpp::display(marie);
+    """,
                 'mime': 'image/png'
             }
         ]
 
+if platform.system() == 'Windows':
+    class XCppTests(jupyter_kernel_test.KernelTests):
+
+        kernel_name = 'xcpp20'
+
+        # language_info.name in a kernel_info_reply should match this
+        language_name = 'C++'
+
+        code_err="""
+        #include <iostream>
+        std::cerr << "oops" << std::endl;
+        """
+
+        def test_xcpp_err(self):
+            self.flush_channels()
+            reply, output_msgs = self.execute_helper(code=self.code_err)
+            print(output_msgs)
+            self.assertEqual(output_msgs[0]['msg_type'], 'stream')
+            self.assertEqual(output_msgs[0]['content']['name'], 'stderr')
+            self.assertEqual(output_msgs[0]['content']['text'], 'oops\n')
 
 class XCppTests2(jupyter_kernel_test.KernelTests):
 
@@ -145,4 +166,4 @@ class XCppTests2(jupyter_kernel_test.KernelTests):
 
 
 if __name__ == '__main__':
-    unittest.main()
+    unittest.main()