MODULE test_rect ;

(* m2SDL unit test: pure-Modula-2 SDLRect helpers, no SDL needed. *)

FROM SDLRect IMPORT MakePoint, MakeRect, PointEquals, RectEquals, RectEmpty;
FROM libc IMPORT printf;

VAR a, b: CARDINAL;

BEGIN
   a := 0; b := 0;
   IF NOT PointEquals(MakePoint(1, 2), MakePoint(1, 2)) THEN
      printf("FAIL test_rect: PointEquals\n"); HALT(1) END;
   IF PointEquals(MakePoint(1, 2), MakePoint(3, 4)) THEN
      printf("FAIL test_rect: PointEquals negative\n"); HALT(1) END;
   IF NOT RectEquals(MakeRect(0, 0, 10, 20), MakeRect(0, 0, 10, 20)) THEN
      printf("FAIL test_rect: RectEquals\n"); HALT(1) END;
   IF RectEmpty(MakeRect(0, 0, 10, 20)) THEN
      printf("FAIL test_rect: RectEmpty false positive\n"); HALT(1) END;
   IF NOT RectEmpty(MakeRect(0, 0, 0, 20)) THEN
      printf("FAIL test_rect: RectEmpty zero width\n"); HALT(1) END;
   printf("PASS test_rect\n")
END test_rect.