Add all dart:html tests from the sdk to test/codegen.

test/codegen/lib/html/indexeddb_4_test.dart

+library IndexedDB4Test;
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'dart:async';
+import 'dart:html' as html;
+import 'dart:indexed_db';
+
+// Test for KeyRange and Cursor.
+
+const String DB_NAME = 'Test4';
+const String STORE_NAME = 'TEST';
+const int VERSION = 1;
+
+Future<Database> createAndOpenDb() {
+  return html.window.indexedDB.deleteDatabase(DB_NAME).then((_) {
+    return html.window.indexedDB.open(DB_NAME, version: VERSION,
+        onUpgradeNeeded: (e) {
+          var db = e.target.result;
+          db.createObjectStore(STORE_NAME);
+        });
+  });
+}
+
+Future<Database> writeItems(Database db) {
+  Future<Object> write(index) {
+    var transaction = db.transaction(STORE_NAME, 'readwrite');
+    return transaction.objectStore(STORE_NAME).put(
+        {'content': 'Item $index'}, index);
+  }
+
+  var future = write(0);
+  for (var i = 1; i < 100; ++i) {
+    future = future.then((_) => write(i));
+  }
+
+  // Chain on the DB so we return it at the end.
+  return future.then((_) => db);
+}
+
+Future<Database> setupDb() {
+  return createAndOpenDb().then(writeItems);
+}
+
+testRange(db, range, expectedFirst, expectedLast) {
+  Transaction txn = db.transaction(STORE_NAME, 'readonly');
+  ObjectStore objectStore = txn.objectStore(STORE_NAME);
+  var cursors = objectStore.openCursor(range: range, autoAdvance: true)
+      .asBroadcastStream();
+
+  int lastKey;
+  cursors.listen((cursor) {
+    lastKey = cursor.key;
+    var value = cursor.value;
+    expect(value['content'], 'Item ${cursor.key}');
+  });
+
+  if (expectedFirst != null) {
+    cursors.first.then((cursor) {
+      expect(cursor.key, expectedFirst);
+    });
+  }
+  if (expectedLast != null) {
+    cursors.last.then((cursor) {
+      expect(lastKey, expectedLast);
+    });
+  }
+
+  return cursors.length.then((length) {
+    if (expectedFirst == null) {
+      expect(length, isZero);
+    } else {
+      expect(length, expectedLast - expectedFirst + 1);
+    }
+  });
+}
+
+main() {
+  useHtmlConfiguration();
+
+  // Don't bother with these tests if it's unsupported.
+  // Support is tested in indexeddb_1_test
+  if (IdbFactory.supported) {
+    var db;
+    setUp(() {
+      if (db == null) {
+        return setupDb().then((result) {
+            db = result;
+          });
+      }
+    });
+    test('only1', () => testRange(db, new KeyRange.only(55), 55, 55));
+    test('only2', () => testRange(db, new KeyRange.only(100), null, null));
+    test('only3', () => testRange(db, new KeyRange.only(-1), null, null));
+
+    test('lower1', () =>
+        testRange(db, new KeyRange.lowerBound(40), 40, 99));
+    // OPTIONALS lower2() => testRange(db, new KeyRange.lowerBound(40, open: true), 41, 99);
+    test('lower2', () =>
+        testRange(db, new KeyRange.lowerBound(40, true), 41, 99));
+    // OPTIONALS lower3() => testRange(db, new KeyRange.lowerBound(40, open: false), 40, 99);
+    test('lower3', () =>
+        testRange(db, new KeyRange.lowerBound(40, false), 40, 99));
+
+    test('upper1', () =>
+        testRange(db, new KeyRange.upperBound(40), 0, 40));
+    // OPTIONALS upper2() => testRange(db, new KeyRange.upperBound(40, open: true), 0, 39);
+    test('upper2', () =>
+        testRange(db, new KeyRange.upperBound(40, true), 0, 39));
+    // upper3() => testRange(db, new KeyRange.upperBound(40, open: false), 0, 40);
+    test('upper3', () =>
+        testRange(db, new KeyRange.upperBound(40, false), 0, 40));
+
+    test('bound1', () =>
+        testRange(db, new KeyRange.bound(20, 30), 20, 30));
+
+    test('bound2', () =>
+        testRange(db, new KeyRange.bound(-100, 200), 0, 99));
+
+    bound3() =>
+        // OPTIONALS testRange(db, new KeyRange.bound(20, 30, upperOpen: true),
+        testRange(db, new KeyRange.bound(20, 30, false, true), 20, 29);
+
+    bound4() =>
+        // OPTIONALS testRange(db, new KeyRange.bound(20, 30, lowerOpen: true),
+        testRange(db, new KeyRange.bound(20, 30, true), 21, 30);
+
+    bound5() =>
+        // OPTIONALS testRange(db, new KeyRange.bound(20, 30, lowerOpen: true, upperOpen: true),
+        testRange(db, new KeyRange.bound(20, 30, true, true), 21, 29);
+  }
+}