<br />
<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_c6j263eco3p4dcauga9fmsjipn, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
svoid test_MountainsAndValleys {
  new MountainsAndValleys mav;
  mav.values(litdoublearray(1, 5, 3, 4, 5, 5, 2));
  mav.run();
  assertEqualsVerbose(ll(1, 4), mav.highs().asList());
  assertEqualsVerbose(ll(0, 2, 6), mav.lows().asList());
  
  assertEqualsVerbose(1, mav.next(mav.highs, 0));
assertEqualsVerbose(4, mav.next(mav.highs, 01);
assertEqualsVerbose(-1, mav.next(mav.highs, 4));

assertEqualsVerbose(-1, mav.prev(mav.lows, 0));
assertEqualsVerbose(0, mav.prev(mav.lows, 1));
assertEqualsVerbose(0, mav.prev(mav.lows, 2));
assertEqualsVerbose(2, mav.prev(mav.lows, 3));
assertEqualsVerbose(2, mav.prev(mav.lows, 4));
}