close[t:4045] Fixes #4045. The trick is to abort if we run out of work...

close[t:4045] Fixes #4045.   The trick is to abort if we run out of work before the bad write appears.

git-svn-id: file:///svn/toku/tokudb@35708 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/diskfull.c

@@ -174,6 +174,9 @@ do_writes_that_fail (void) {
     db_env_set_func_full_write (write_counting_and_failing);
     write_count=0;
     do_db_work();
+    if (fail_at != FAIL_NEVER && write_count <= fail_at) {
+	abort(); // if we don't encounter the write (because there are not enough), then in fail_at mode, we need to abort so that the test will be happy.
+    }
     printf("%d", write_count);
 }