Extend test to check subsystem set by executable(gui_app:)

test cases/windows/17 gui app/gui_app_tester.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+
+import re
+import subprocess
+import sys
+
+tool = sys.argv[1]
+executable = sys.argv[2]
+expected = int(sys.argv[3])
+actual = -1
+
+if 'objdump' in tool:
+    result = subprocess.check_output([tool, '-p', executable]).decode()
+    match = re.search(r'^Subsystem\s+(\d+)', result, re.MULTILINE)
+elif 'dumpbin' in tool:
+    result = subprocess.check_output([tool, '/headers', executable]).decode()
+    match = re.search(r'^\s*(\d+) subsystem(?! version)', result, re.MULTILINE)
+else:
+    print('unknown tool')
+    sys.exit(1)
+
+if match:
+    actual = int(match.group(1))
+
+print('subsystem expected: %d, actual: %d' % (expected, actual))
+sys.exit(0 if (expected == actual) else 1)

test cases/windows/17 gui app/gui_prog.c

@@ -0,0 +1,6 @@
+#include <windows.h>
+
+int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
+                   LPSTR lpCmdLine, int nCmdShow) {
+    return 0;
+}

test cases/windows/17 gui app/meson.build

@@ -7,3 +7,16 @@ project('gui_app_test', 'c')
 
 console_lib = static_library('main', 'console_prog.c')
 executable('console', 'dummy.c', link_with: console_lib, gui_app: false)
+
+#
+# also verify that the correct subsystem is set by executable(gui_app:)
+#
+
+gui_prog = executable('gui_prog', 'gui_prog.c', gui_app: true)
+console_prog = executable('console_prog', 'console_prog.c', gui_app: false)
+
+tester = find_program('gui_app_tester.py')
+
+tool = find_program('objdump', 'dumpbin')
+test('is_gui', tester, args: [tool.path(), gui_prog, '2'])
+test('not_gui', tester, args: [tool.path(), console_prog, '3'])