<!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> var db, open; setup(function() { open = indexedDB.open('testdb-' + new Date().getTime()); open.onupgradeneeded = function(e) { db = e.target.result; var objStore = db.createObjectStore("test"); objStore.createIndex("index", ""); objStore.add("data", 1); objStore.add("data2", 2); }; }, { explicit_done: true }); open.onsuccess = function() { async_test(document.title + " - attempt to call advance twice").step(function(e) { var count = 0; var rq = db.transaction("test").objectStore("test").index("index").openCursor(); rq.onsuccess = this.step_func(function(e) { if (!e.target.result) { assert_equals(count, 2, 'count'); this.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 = fail(this, "unexpected error") }); async_test(document.title + " - pass something other than number").step(function(e) { var rq = db.transaction("test").objectStore("test").index("index").openCursor(); rq.onsuccess = this.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"); }); this.done(); }); rq.onerror = fail(this, "unexpected error") }); async_test(document.title + " - pass null/undefined").step(function(e) { var rq = db.transaction("test").objectStore("test").index("index").openCursor(); rq.onsuccess = this.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); }); this.done(); }); rq.onerror = fail(this, "unexpected error") }); async_test(document.title + " - missing argument").step(function(e) { var rq = db.transaction("test").objectStore("test").index("index").openCursor(); rq.onsuccess = this.step_func(function(e) { var cursor = e.target.result; assert_throws({ name: "TypeError" }, function() { cursor.advance(); }); this.done(); }); rq.onerror = fail(this, "unexpected error") }); async_test(document.title + " - pass negative numbers").step(function(e) { var rq = db.transaction("test").objectStore("test").index("index").openCursor(); rq.onsuccess = this.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); }); this.done(); }); rq.onerror = fail(this, "unexpected error") }); async_test(document.title + " - got value not set on exception").step(function(e) { var count = 0; var rq = db.transaction("test").objectStore("test").index("index").openCursor(); rq.onsuccess = this.step_func(function(e) { var cursor = e.target.result; if (!cursor) { assert_equals(count, 2, "count runs"); this.done(); return; } assert_throws({ name: "TypeError" }, function() { cursor.advance(0); }); cursor.advance(1); count++; }); rq.onerror = fail(this, "unexpected error") }); // Stop blocking the testing system from hereon done(); } </script> <div id=log></div>