Enable flush stdout on print in tests

Author: touilleMan

tests/0-gdscript/project.godot

@@ -11,6 +11,8 @@ config_version=5
 [application]
 
 run/main_scene="res://main.tscn"
+; Force flush avoid out-of-order output from previous prints
+run/flush_stdout_on_print = true
 config/features=PackedStringArray("4.0")
 name="TestProject"
 main_scene="res://main.tscn"

tests/1-gdextension/my.c

@@ -9,26 +9,32 @@
 # define DLL_IMPORT
 #endif
 
+// Flush before and after print to avoid out-of-order output from previous prints
+#define flush_print(msg) \
+    fflush(NULL); \
+    printf(msg); \
+    fflush(NULL)
+
 static void _initialize(void *userdata, GDExtensionInitializationLevel p_level) {
     if (p_level != GDEXTENSION_INITIALIZATION_SERVERS) {
         return;
     }
-    printf("My GDExtension initialize\n");
+    flush_print("My GDExtension initialize\n");
 }
 
 static void _deinitialize(void *userdata, GDExtensionInitializationLevel p_level) {
     if (p_level != GDEXTENSION_INITIALIZATION_SERVERS) {
         return;
     }
-    printf("My GDExtension deinitialize\n");
+    flush_print("My GDExtension deinitialize\n");
 }
 
 DLL_EXPORT GDExtensionBool my_init(
     const GDExtensionInterfaceGetProcAddress p_get_proc_address,
     const GDExtensionClassLibraryPtr p_library,
     GDExtensionInitialization *r_initialization
 ) {
-    printf("My GDExtension entry point call\n");
+    flush_print("My GDExtension entry point call\n");
 
     r_initialization->minimum_initialization_level  = GDEXTENSION_INITIALIZATION_SERVERS;
 	r_initialization->userdata = NULL;

tests/1-gdextension/project.godot

@@ -11,6 +11,8 @@ config_version=5
 [application]
 
 run/main_scene="res://main.tscn"
+; Force flush avoid out-of-order output from previous prints
+run/flush_stdout_on_print = true
 config/features=PackedStringArray("4.0")
 name="TestProject"
 main_scene="res://main.tscn"

tests/2-pythonscript-init/project.godot

@@ -11,6 +11,8 @@ config_version=5
 [application]
 
 run/main_scene="res://main.tscn"
+; Force flush avoid out-of-order output from previous prints
+run/flush_stdout_on_print = true
 config/features=PackedStringArray("4.0")
 name="TestProject"
 main_scene="res://main.tscn"

tests/3-pythonscript-cython-only/project.godot

@@ -11,6 +11,8 @@ config_version=5
 [application]
 
 run/main_scene="res://main.tscn"
+; Force flush avoid out-of-order output from previous prints
+run/flush_stdout_on_print = true
 config/features=PackedStringArray("4.0")
 name="TestProject"
 main_scene="res://main.tscn"