// modulo by zero should throw, not crash
try {
  3 % 0
  assert_true(false)
} catch (e) {
  assert_equal("Arithmetic error: divide by zero", e.what())
}

// assign-modulo by zero should also throw
var x = 3;
try {
  x %= 0
  assert_true(false)
} catch (e) {
  assert_equal("Arithmetic error: divide by zero", e.what())
}