tictactoe

commit a73984d7008722c51eb0d2ded486e1c6153a6865
parent ccc8a5e9822326c15197e154340e307e18c5a48e
Author: Wilson Gheen <wilson@wilsonrgheen.com>
Date:   Thu, 22 Dec 2022 12:55:43 -0600

Add unit test to verify AI cannot beat itself

Diffstat:
M
unit_test.c
 | 
11
++++++++++-

1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/unit_test.c b/unit_test.c
@@ -20,11 +20,13 @@ int main() {
     int failures = 0;
     int len = sizeof test_boards / sizeof test_boards[0];
     int i = 0;
+    int c = 0;
+    /* Testing that particular presets will be correctly interpreted as a draw/win/loss */
     while(i < len) {
         struct test_board *b = test_boards + (i++);
         char actual_result[8];
         printf("TEST %d\n", i);
-        puts(    "--------");
+        puts(  "--------");
         printf("Testing %s -- expecting '%s' ...\n", b->name, b->expected_result);
         set_board(b->name);
         char winner = play(get_move_preset_board, NULL);
@@ -40,6 +42,13 @@ int main() {
         }
         else puts("SUCCESS\n");
     }
+    printf("TEST %d\n", ++i);
+    puts(  "--------");
+    puts("Pitting our allegedly perfect AI against itself 50 times. Expecting a draw for all executions.");
+    for(c=0; c < 50 && play(get_move_minimax, NULL) == 0; ++c);
+    if(c < 50) failures++, puts("FAILURE\n");
+    else puts("SUCCESS\n");
+
     puts("-----------------------------------------------------------");
     printf("\n### SUITE %s ###\n", failures ? "FAILURE" : "SUCCESS");
     printf("%d tests: %d failed, %d succeeded\n", i, failures, i - failures);