From 9154667efa633e5601d8546deb4635b87a3c06c7 Mon Sep 17 00:00:00 2001
From: Lorenzo Carletti <lollo.lollo.rbiz@gmail.com>
Date: Tue, 16 Nov 2021 20:51:53 +0100
Subject: [PATCH] Add support for messages within asserts

---
 src/c/tests/debug_printf/test_print.c | 17 +++++++++++++++--
 src/c/tests/debug_printf/test_print.h |  8 ++++++--
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/src/c/tests/debug_printf/test_print.c b/src/c/tests/debug_printf/test_print.c
index 9c61681..a52be10 100644
--- a/src/c/tests/debug_printf/test_print.c
+++ b/src/c/tests/debug_printf/test_print.c
@@ -1,6 +1,7 @@
 #include "test_print.h"
 #include "mgba.h"
 #include <stdarg.h>
+#include "printf.h"
 
 
 void test_printf(const char* ptr, ...) {
@@ -10,10 +11,22 @@ void test_printf(const char* ptr, ...) {
 	va_end(args);
 }
 
-void assert_print(bool condition, const char* file, int line)
+void assert_print(bool condition, const char* file, int line, const char* message, ...)
 {
+    char str[MAX_STR_SIZE];
     if(!condition)
-        test_printf("FAIL! File: %s - Line: %d", file, line);
+    {
+        if(message == NULL)
+            test_printf("FAIL! File: %s - Line: %d", file, line);
+        else
+        {
+            va_list args;
+            va_start(args, message);
+            vsnprintf(str, MAX_STR_SIZE, message, args);
+            va_end(args);
+            test_printf("FAIL! File: %s - Line: %d - Message: %s", file, line, str);
+        }
+    }
 }
 
 void start_session()
diff --git a/src/c/tests/debug_printf/test_print.h b/src/c/tests/debug_printf/test_print.h
index 4b050d7..bd9ee69 100644
--- a/src/c/tests/debug_printf/test_print.h
+++ b/src/c/tests/debug_printf/test_print.h
@@ -1,9 +1,13 @@
 #include "mgba.h"
 #include "stdbool.h"
 
-#define assert(condition) assert_print(condition, __FILE__, __LINE__)
+#define MAX_STR_SIZE 0x100
+#define NULL 0
 
-void assert_print(bool condition, const char* file, int line);
+#define assert(condition) assert_print(condition, __FILE__, __LINE__, NULL)
+#define assert_message(condition, format, ...) assert_print(condition, __FILE__, __LINE__, format, __VA_ARGS__)
+
+void assert_print(bool condition, const char* file, int line, const char* message, ...);
 void test_printf(const char* string, ...);
 void start_session(void);
 void end_session(void);