Tests: Add case to cover execute_process support for no extension on Windows

Issue: #25450

Tests/RunCMake/CMakeLists.txt

@@ -475,6 +475,7 @@ set(execute_process_ARGS
   -DEXIT_CODE_EXE=$<TARGET_FILE:exit_code>
   -DPRINT_STDIN_EXE=$<TARGET_FILE:print_stdin>
   -DPython_EXECUTABLE=${Python_EXECUTABLE}
+  -DCYGWIN=${CYGWIN}
   )
 if(NOT CMake_TEST_EXTERNAL_CMAKE)
   list(APPEND execute_process_ARGS -DTEST_ENCODING_EXE=$<TARGET_FILE:testEncoding>)

Tests/RunCMake/execute_process/RunCMakeTest.cmake

@@ -46,3 +46,10 @@ if(UNIX AND Python_EXECUTABLE)
   run_cmake_command(LastCommandAbnormalExit-1 ${CMAKE_COMMAND} -DPython_EXECUTABLE=${Python_EXECUTABLE} -P ${RunCMake_SOURCE_DIR}/LastCommandAbnormalExit-1.cmake)
   run_cmake_command(LastCommandAbnormalExit-2 ${CMAKE_COMMAND} -DPython_EXECUTABLE=${Python_EXECUTABLE} -P ${RunCMake_SOURCE_DIR}/LastCommandAbnormalExit-2.cmake)
 endif()
+
+if(WIN32 OR CYGWIN)
+  set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/WindowsNoExtension-build)
+  run_cmake(WindowsNoExtension)
+  set(RunCMake_TEST_NO_CLEAN 1)
+  run_cmake_command(WindowsNoExtension-build ${CMAKE_COMMAND} --build . --config Debug --target RunScript)
+endif()

Tests/RunCMake/execute_process/WindowsNoExtension-build-stdout.txt

@@ -0,0 +1,6 @@
+[^
+]*This executable does not have an extension
+[^
+]*This executable does not have an extension
+[^
+]*This executable has an extension

Tests/RunCMake/execute_process/WindowsNoExtension.cmake

@@ -0,0 +1,12 @@
+enable_language(C)
+
+add_executable(exe_extension exe_extension.c)
+add_executable(exe_no_extension exe_no_extension.c)
+
+add_custom_target(RunScript
+  ${CMAKE_COMMAND}
+    -Dexe_extension=$<TARGET_FILE:exe_extension>
+    -Dexe_no_extension=$<TARGET_FILE:exe_no_extension>
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/WindowsNoExtensionRunScript.cmake
+  DEPENDS exe_extension exe_no_extension
+  )

Tests/RunCMake/execute_process/WindowsNoExtensionRunScript.cmake

@@ -0,0 +1,17 @@
+file(COPY_FILE "${exe_no_extension}" "${CMAKE_CURRENT_BINARY_DIR}/exe" INPUT_MAY_BE_RECENT)
+execute_process(
+  COMMAND "${CMAKE_CURRENT_BINARY_DIR}/exe"
+  COMMAND_ERROR_IS_FATAL ANY
+  )
+
+file(COPY_FILE "${exe_extension}" "${CMAKE_CURRENT_BINARY_DIR}/exe.exe" INPUT_MAY_BE_RECENT)
+execute_process(
+  COMMAND "${CMAKE_CURRENT_BINARY_DIR}/exe"
+  COMMAND_ERROR_IS_FATAL ANY
+  )
+
+file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/exe")
+execute_process(
+  COMMAND "${CMAKE_CURRENT_BINARY_DIR}/exe"
+  COMMAND_ERROR_IS_FATAL ANY
+  )

Tests/RunCMake/execute_process/exe_extension.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main(void)
+{
+  printf("This executable has an extension\n");
+  return 0;
+}

Tests/RunCMake/execute_process/exe_no_extension.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main(void)
+{
+  printf("This executable does not have an extension\n");
+  return 0;
+}