Function TestExceptions

deps/v8/test/mjsunit/instanceof.js:61–91

()

function TestExceptions() {
  function F() { }
  var items = [ 1, new Number(42),
                true,
                'string', new String('hest'),
                {}, [],
                F, new F(),
                Object, String ];

  var exceptions = 0;
  var instanceofs = 0;

  for (var i = 0; i < items.length; i++) {
    for (var j = 0; j < items.length; j++) {
      try {
        if (items[i] instanceof items[j]) instanceofs++;
      } catch (e) {
        assertTrue(e instanceof TypeError);
        exceptions++;
      }
    }
  }
  assertEquals(10, instanceofs);
  assertEquals(88, exceptions);

  // Make sure to throw an exception if the function prototype
  // isn't a proper JavaScript object.
  function G() { }
  G.prototype = undefined;
  assertThrows("({} instanceof G)");
}

TestExceptions();