1 files changed, 10 insertions, 0 deletions
diff --git a/tests/sdl_canvas_proxy.c b/tests/sdl_canvas_proxy.c
index 2b33be29..27ef3bb4 100644
--- a/tests/sdl_canvas_proxy.c
+++ b/tests/sdl_canvas_proxy.c
@@ -1,9 +1,19 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <SDL/SDL.h>
+#include <assert.h>
 #include <emscripten.h>
 
 int main(int argc, char **argv) {
+  FILE *f = fopen("data.txt", "rb");
+  assert(f);
+  assert(fgetc(f) == 'd');
+  assert(fgetc(f) == 'a');
+  assert(fgetc(f) == 't');
+  assert(fgetc(f) == 'u');
+  assert(fgetc(f) == 'm');
+  fclose(f);
+
   SDL_Init(SDL_INIT_VIDEO);
   SDL_Surface *screen = SDL_SetVideoMode(600, 450, 32, SDL_HWSURFACE);