<!DOCTYPE html>
<title>IDBCursor.advance() - invalid</title>
<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBCursor-advance-void-unsigned-long-count">
<link rel=assert title="If the value for count is 0 (zero) or a negative number, this method must throw a JavaScript TypeError exception.">
<link rel=assert title="TypeError The value passed into the count parameter was zero or a negative number.">
<link rel=assert title="InvalidStateError The cursor is currently being iterated, or has iterated past its end.">
<link rel=assert title="Calling this method more than once before new cursor data has been loaded is not allowed and results in a DOMException of type InvalidStateError being thrown. For example, calling advance() twice from the same onsuccess handler results in a DOMException of type InvalidStateError being thrown on the second call.">
<link rel=assert title="Before this method returns, unless an exception was thrown, it sets the got value flag on the cursor to false.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support.js"></script>

<script>

function upgrade_func(t, db, tx) {
  var objStore = db.createObjectStore("test");
  objStore.createIndex("index", "");

  objStore.add("data",  1);
  objStore.add("data2", 2);
}

indexeddb_test(
  upgrade_func,
  function(t, db) {
    var count = 0;
    var rq = db.transaction("test").objectStore("test").index("index").openCursor();

    rq.onsuccess = t.step_func(function(e) {
      if (!e.target.result) {
        assert_equals(count, 2, 'count');
        t.done();
        return;
      }
      var cursor = e.target.result;

      cursor.advance(1);

      // Second try
      assert_throws('InvalidStateError',
                    function() { cursor.advance(1); }, 'second advance');

      assert_throws('InvalidStateError',
                    function() { cursor.advance(3); }, 'third advance');

      count++;
    });
    rq.onerror = t.unreached_func("unexpected error")
  },
  document.title + " - attempt to call advance twice"
);

indexeddb_test(
  upgrade_func,
  function(t, db) {
    var rq = db.transaction("test").objectStore("test").index("index").openCursor();

    rq.onsuccess = t.step_func(function(e) {
      var cursor = e.target.result;

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(document); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance({}); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance([]); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(""); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance("1 2"); });

      t.done();
    });
    rq.onerror = t.unreached_func("unexpected error")
  },
  document.title + " - pass something other than number"
);


indexeddb_test(
  upgrade_func,
  function(t, db) {
    var rq = db.transaction("test").objectStore("test").index("index").openCursor();

    rq.onsuccess = t.step_func(function(e) {
      var cursor = e.target.result;

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(null); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(undefined); });

      var myvar = null;
      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(myvar); });

      t.done();
    });
    rq.onerror = t.unreached_func("unexpected error")
  },
  document.title + " - pass null/undefined"
);


indexeddb_test(
  upgrade_func,
  function(t, db) {
    var rq = db.transaction("test").objectStore("test").index("index").openCursor();

    rq.onsuccess = t.step_func(function(e) {
      var cursor = e.target.result;

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(); });

      t.done();
    });
    rq.onerror = t.unreached_func("unexpected error")
  },
  document.title + " - missing argument"
);

indexeddb_test(
  upgrade_func,
  function(t, db) {
    var rq = db.transaction("test").objectStore("test").index("index").openCursor();

    rq.onsuccess = t.step_func(function(e) {
      var cursor = e.target.result;

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(-1); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(NaN); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(0); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(-0); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(Infinity); });

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(-Infinity); });

      var myvar = -999999;
      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(myvar); });

      t.done();
    });
    rq.onerror = t.unreached_func("unexpected error")
  },
  document.title + " - pass negative numbers"
);

indexeddb_test(
  upgrade_func,
  function(t, db) {
    var count = 0;
    var rq = db.transaction("test").objectStore("test").index("index").openCursor();

    rq.onsuccess = t.step_func(function(e) {
      var cursor = e.target.result;
      if (!cursor)
        {
          assert_equals(count, 2, "count runs");
          t.done();
          return;
        }

      assert_throws({ name: "TypeError" },
                    function() { cursor.advance(0); });

      cursor.advance(1);
      count++;
    });
    rq.onerror = t.unreached_func("unexpected error")
  },
  document.title + " - got value not set on exception"
);

</script>