Function assertTrue

deps/v8/test/mjsunit/object-seal.js:411–461

(%HasPackedElements(obj));
  }
  Object.seal(obj);
  assertTrue(Object.isSealed(obj));
  assertFalse(Object.isFrozen(obj));
  assertTrue(Array.isArray(obj));
  assertEquals(obj.lastIndexOf(1), 2);
  assertEquals(obj.indexOf('a'), 4);
  assertEquals(obj.indexOf(undefined), 0);
  assertFalse(obj.includes(Symbol("test")));
  assertTrue(obj.includes(undefined));
  assertFalse(obj.includes(NaN));
  assertTrue(obj.includes());
  assertEquals(obj.find(x => x==0), undefined);
  assertEquals(obj.findIndex(x => x=='a'), 4);
  assertTrue(obj.some(x => typeof x == 'symbol'));
  assertFalse(obj.every(x => x == -1));
  var filteredArray = obj.filter(e => typeof e == "symbol");
  assertEquals(filteredArray.length, 1);
  assertEquals(obj.map(x => x), obj);
  var countPositiveNumber = 0;
  obj.forEach(function(item, index) {
    if (item === 1) {
      countPositiveNumber++;
      assertEquals(index, 2);
    }
  });
  assertEquals(countPositiveNumber, 1);
  assertEquals(obj.length, obj.concat([]).length);
  var iterator = obj.values();
  assertEquals(iterator.next().value, undefined);
  assertEquals(iterator.next().value, null);
  var iterator = obj.keys();
  assertEquals(iterator.next().value, 0);
  assertEquals(iterator.next().value, 1);
  var iterator = obj.entries();
  assertEquals(iterator.next().value, [0, undefined]);
  assertEquals(iterator.next().value, [1, null]);

  // Verify that the value can be written
  var length = obj.length;
  for (var i = 0; i < length-1; i++) {
    obj[i] = 'new';
    assertEquals(obj[i], 'new');
  }
};
obj = new Array(undefined, null, 1, -1, 'a', Symbol("test"));
if(!%IsUndefinedDoubleEnabled())

  if(!%IsUndefinedDoubleEnabled()) {
    // TODO(385155404): Consider reenabling when we can transition back to packed.
    assertTrue(%HasPackedElements(obj));
  }
  Object.seal(obj);
  assertTrue(Object.isSealed(obj));
  assertFalse(Object.isFrozen(obj));
  assertTrue(Array.isArray(obj));
  assertEquals(obj.lastIndexOf(1), 2);
  assertEquals(obj.indexOf('a'), 4);
  assertEquals(obj.indexOf(undefined), 0);
  assertFalse(obj.includes(Symbol("test")));
  assertTrue(obj.includes(undefined));
  assertFalse(obj.includes(NaN));
  assertTrue(obj.includes());
  assertEquals(obj.find(x => x==0), undefined);
  assertEquals(obj.findIndex(x => x=='a'), 4);
  assertTrue(obj.some(x => typeof x == 'symbol'));
  assertFalse(obj.every(x => x == -1));
  var filteredArray = obj.filter(e => typeof e == "symbol");
  assertEquals(filteredArray.length, 1);
  assertEquals(obj.map(x => x), obj);
  var countPositiveNumber = 0;
  obj.forEach(function(item, index) {
    if (item === 1) {
      countPositiveNumber++;
      assertEquals(index, 2);
    }
  });
  assertEquals(countPositiveNumber, 1);
  assertEquals(obj.length, obj.concat([]).length);
  var iterator = obj.values();
  assertEquals(iterator.next().value, undefined);
  assertEquals(iterator.next().value, null);
  var iterator = obj.keys();
  assertEquals(iterator.next().value, 0);
  assertEquals(iterator.next().value, 1);
  var iterator = obj.entries();
  assertEquals(iterator.next().value, [0, undefined]);
  assertEquals(iterator.next().value, [1, null]);

  // Verify that the value can be written
  var length = obj.length;
  for (var i = 0; i < length-1; i++) {
    obj[i] = 'new';
    assertEquals(obj[i], 'new');
  }
};
obj = new Array(undefined, null, 1, -1, 'a', Symbol("test"));
if(!%IsUndefinedDoubleEnabled()) {
  // TODO(385155404): Consider reenabling when we can transition back to packed.
  assertTrue(%HasPackedElements(obj));
}
Object.seal(obj);
testPackedSealedArray1(obj);