<!DOCTYPE html> <title>IDBCursor.continue()</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-continue-void-any-key"> <link rel=assert title="The next key to position this cursor at"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="support.js"></script> <script> var db, open; var store = [ { value: "cupcake", key: 5 }, { value: "pancake", key: 3 }, { value: "pie", key: 1 }, { value: "pie", key: 4 }, { value: "taco", key: 2 } ]; setup(function() { open = indexedDB.open('testdb-' + new Date().getTime()); open.onupgradeneeded = function(e) { var os, i; db = e.target.result; os = db.createObjectStore("test"); os.createIndex("index", ""); for (i = 0; i < store.length; i++) os.add(store[i].value, store[i].key); }; }, { explicit_done: true }); open.onsuccess = function() { async_test(document.title + " - continues").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, 5, 'count'); this.done(); return; } var cursor = e.target.result; assert_equals(cursor.value, store[count].value); assert_equals(cursor.primaryKey, store[count].key); cursor.continue(); count++; }); rq.onerror = fail(this, "unexpected error") }); async_test(document.title + " - with given key").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, 3, 'count'); this.done(); return; } var cursor = e.target.result; switch(count) { case 0: assert_equals(cursor.value, "cupcake"); assert_equals(cursor.primaryKey, 5); cursor.continue("pie"); break; case 1: assert_equals(cursor.value, "pie"); assert_equals(cursor.primaryKey, 1); cursor.continue("taco"); break; case 2: assert_equals(cursor.value, "taco"); assert_equals(cursor.primaryKey, 2); cursor.continue(); break; default: assert_unreached("Unexpected count: " + count); } count++; }); rq.onerror = fail(this, "unexpected error") }); async_test(document.title + " - skip far forward").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, 1, 'count'); this.done(); return; } var cursor = e.target.result; switch(count) { case 0: assert_equals(cursor.value, "cupcake"); assert_equals(cursor.primaryKey, 5); break; default: assert_unreached("Unexpected count: " + count); } count++; cursor.continue([]); // Arrays are always bigger than strings }); rq.onerror = fail(this, "unexpected error2") }); async_test(document.title + " - within range").step(function(e) { var count = 0; var rq = db.transaction("test").objectStore("test").index("index") .openCursor(IDBKeyRange.lowerBound("cupcake", true)); rq.onsuccess = this.step_func(function(e) { if (!e.target.result) { assert_equals(count, 2, 'count'); this.done(); return; } var cursor = e.target.result; switch(count) { case 0: assert_equals(cursor.value, "pancake"); assert_equals(cursor.primaryKey, 3); cursor.continue("pie"); break; case 1: assert_equals(cursor.value, "pie"); assert_equals(cursor.primaryKey, 1); cursor.continue("zzz"); break; default: assert_unreached("Unexpected count: " + count); } count++; }); rq.onerror = fail(this, "unexpected error1") }); async_test(document.title + " - within single key range").step(function(e) { var count = 0; var rq = db.transaction("test").objectStore("test").index("index") .openCursor("pancake"); rq.onsuccess = this.step_func(function(e) { if (!e.target.result) { assert_equals(count, 1, 'count'); this.done(); return; } var cursor = e.target.result; switch(count) { case 0: assert_equals(cursor.value, "pancake"); assert_equals(cursor.primaryKey, 3); cursor.continue("pie"); break; default: assert_unreached("Unexpected count: " + count); } count++; }); rq.onerror = fail(this, "unexpected error1") }); async_test(document.title + " - within single key range, with several results").step(function(e) { var count = 0; var rq = db.transaction("test").objectStore("test").index("index") .openCursor("pie"); rq.onsuccess = this.step_func(function(e) { if (!e.target.result) { assert_equals(count, 2, 'count'); this.done(); return; } var cursor = e.target.result; switch(count) { case 0: assert_equals(cursor.value, "pie"); assert_equals(cursor.primaryKey, 1); cursor.continue(); break; case 1: assert_equals(cursor.value, "pie"); assert_equals(cursor.primaryKey, 4); cursor.continue(); break; default: assert_unreached("Unexpected count: " + count); } count++; }); rq.onerror = fail(this, "unexpected error1") }); // Stop blocking the testing system from hereon done(); } </script> <div id="log"></div>