include: Allow printing test failure messages in bright red.

include/wine/test.h

@@ -199,6 +199,9 @@ int winetest_report_success = 0;
 /* silence todos and skips above this threshold */
 int winetest_mute_threshold = 42;
 
+/* use ANSI escape codes for output coloring */
+static int winetest_color;
+
 /* passing arguments around */
 static int winetest_argc;
 static char** winetest_argv;
@@ -277,6 +280,9 @@ const char *winetest_elapsed(void)
     return wine_dbg_sprintf( "%.3f", (now - winetest_start_time) / 1000.0);
 }
 
+static const char color_reset[] = "\e[0m";
+static const char color_bright_red[] = "\e[1;91m";
+
 static void winetest_printf( const char *msg, ... ) __WINE_PRINTF_ATTR(1,2);
 static void winetest_printf( const char *msg, ... )
 {
@@ -374,8 +380,10 @@ int winetest_vok( int condition, const char *msg, va_list args )
     {
         if (!condition)
         {
+            if (winetest_color) printf( color_bright_red );
             winetest_print_context( "Test failed: " );
             vprintf(msg, args);
+            if (winetest_color) printf( color_reset );
             InterlockedIncrement(&failures);
             return 0;
         }
@@ -656,6 +664,7 @@ int main( int argc, char **argv )
     else if (running_under_wine())
         winetest_platform = "wine";
 
+    if (GetEnvironmentVariableA( "WINETEST_COLOR", p, sizeof(p) )) winetest_color = atoi(p);
     if (GetEnvironmentVariableA( "WINETEST_DEBUG", p, sizeof(p) )) winetest_debug = atoi(p);
     if (GetEnvironmentVariableA( "WINETEST_INTERACTIVE", p, sizeof(p) )) winetest_interactive = atoi(p);
     if (GetEnvironmentVariableA( "WINETEST_REPORT_SUCCESS", p, sizeof(p) )) winetest_report_success = atoi(p);