check file size in tests

Author: deminy

tests/002_basic.phpt

@@ -15,11 +15,22 @@ file_put_contents($new_file, str_repeat("Hello PHP", 1999));
 bsdiff_diff($old_file, $new_file, $diff_file);
 bsdiff_patch($old_file, $patched_file, $diff_file);
 
-var_dump(md5_file($diff_file));
+var_dump(filesize($old_file));
+var_dump(filesize($new_file));
+var_dump(filesize($diff_file));
+var_dump(filesize($patched_file));
+
+var_dump(md5_file($old_file));
 var_dump(md5_file($new_file));
+var_dump(md5_file($diff_file));
 var_dump(md5_file($patched_file));
 ?>
 --EXPECT--
-string(32) "041bfaaaf13b8cbde04b5ae614b096db"
+int(21967)
+int(17991)
+int(104)
+int(17991)
+string(32) "ebd4018bef6684280a19cbcb92099e4e"
 string(32) "43a76cb50268ee3614012af8fac38ba0"
+string(32) "041bfaaaf13b8cbde04b5ae614b096db"
 string(32) "43a76cb50268ee3614012af8fac38ba0"