Use full testing program path on Windows

platformio/test/runners/doctest.py

@@ -112,8 +112,7 @@ class DoctestTestRunner(TestRunnerBase):
         env.Append(CPPDEFINES=["DOCTEST_CONFIG_COLORS_NONE"])
         if self.platform.is_embedded():
             return
-        if "-std=" not in env.subst("$CXXFLAGS"):
-            env.Append(CXXFLAGS=["-std=c++11"])
+        env.Append(CXXFLAGS=["-std=c++11"])
 
     def on_testing_line_output(self, line):
         if self.options.verbose:

platformio/test/runners/readers/program.py

@@ -62,7 +62,13 @@ class ProgramTestOutputReader:
         if custom_testing_command:
             return custom_testing_command
         build_dir = self.test_runner.project_config.get("platformio", "build_dir")
-        cmd = [os.path.join(build_dir, self.test_runner.test_suite.env_name, "program")]
+        cmd = [
+            os.path.join(
+                build_dir,
+                self.test_runner.test_suite.env_name,
+                "program.exe" if IS_WINDOWS else "program",
+            )
+        ]
         if self.test_runner.options.program_args:
             cmd.extend(self.test_runner.options.program_args)
         return cmd

tests/commands/test_test.py

@@ -436,10 +436,6 @@ void unittest_uart_end(){}
     validate_cliresult(result)
 
 
-@pytest.mark.skipif(
-    sys.platform == "win32" and os.environ.get("GITHUB_ACTIONS") == "true",
-    reason="skip Github Actions on Windows (MinGW issue)",
-)
 def test_doctest_framework(clirunner, tmp_path: Path):
     project_dir = tmp_path / "project"
     project_dir.mkdir()