delete observe from the repo

pkg/observe/test/observable_list_test.dart

-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:async';
-import 'package:observe/observe.dart';
-import 'package:unittest/unittest.dart';
-import 'observe_test_utils.dart';
-
-main() => dirtyCheckZone().run(_runTests);
-
-_runTests() {
-  // TODO(jmesserly): need all standard List API tests.
-
-  StreamSubscription sub, sub2;
-
-  sharedTearDown() {
-    list = null;
-    sub.cancel();
-    if (sub2 != null) {
-      sub2.cancel();
-      sub2 = null;
-    }
-  }
-
-  group('observe length', () {
-
-    ObservableList list;
-    List<ChangeRecord> changes;
-
-    setUp(() {
-      list = toObservable([1, 2, 3]);
-      changes = null;
-      sub = list.changes.listen((records) {
-        changes = getPropertyChangeRecords(records, #length);
-      });
-    });
-
-    tearDown(sharedTearDown);
-
-    test('add changes length', () {
-      list.add(4);
-      expect(list, [1, 2, 3, 4]);
-      return new Future(() {
-        expectChanges(changes, [_lengthChange(3, 4)]);
-      });
-    });
-
-    test('removeObject', () {
-      list.remove(2);
-      expect(list, orderedEquals([1, 3]));
-
-      return new Future(() {
-        expectChanges(changes, [_lengthChange(3, 2)]);
-      });
-    });
-
-    test('removeRange changes length', () {
-      list.add(4);
-      list.removeRange(1, 3);
-      expect(list, [1, 4]);
-      return new Future(() {
-        expectChanges(changes, [_lengthChange(3, 4), _lengthChange(4, 2)]);
-      });
-    });
-
-    test('length= changes length', () {
-      list.length = 5;
-      expect(list, [1, 2, 3, null, null]);
-      return new Future(() {
-        expectChanges(changes, [_lengthChange(3, 5)]);
-      });
-    });
-
-    test('[]= does not change length', () {
-      list[2] = 9000;
-      expect(list, [1, 2, 9000]);
-      return new Future(() {
-        expectChanges(changes, null);
-      });
-    });
-
-    test('clear changes length', () {
-      list.clear();
-      expect(list, []);
-      return new Future(() {
-        expectChanges(changes, [_lengthChange(3, 0)]);
-      });
-    });
-  });
-
-  group('observe index', () {
-    List<ListChangeRecord> changes;
-
-    setUp(() {
-      list = toObservable([1, 2, 3]);
-      changes = null;
-      sub = list.listChanges.listen((records) {
-        changes = getListChangeRecords(records, 1);
-      });
-    });
-
-    tearDown(sharedTearDown);
-
-    test('add does not change existing items', () {
-      list.add(4);
-      expect(list, [1, 2, 3, 4]);
-      return new Future(() {
-        expectChanges(changes, []);
-      });
-    });
-
-    test('[]= changes item', () {
-      list[1] = 777;
-      expect(list, [1, 777, 3]);
-      return new Future(() {
-        expectChanges(changes, [_change(1, addedCount: 1, removed: [2])]);
-      });
-    });
-
-    test('[]= on a different item does not fire change', () {
-      list[2] = 9000;
-      expect(list, [1, 2, 9000]);
-      return new Future(() {
-        expectChanges(changes, []);
-      });
-    });
-
-    test('set multiple times results in one change', () {
-      list[1] = 777;
-      list[1] = 42;
-      expect(list, [1, 42, 3]);
-      return new Future(() {
-        expectChanges(changes, [
-          _change(1, addedCount: 1, removed: [2]),
-        ]);
-      });
-    });
-
-    test('set length without truncating item means no change', () {
-      list.length = 2;
-      expect(list, [1, 2]);
-      return new Future(() {
-        expectChanges(changes, []);
-      });
-    });
-
-    test('truncate removes item', () {
-      list.length = 1;
-      expect(list, [1]);
-      return new Future(() {
-        expectChanges(changes, [_change(1, removed: [2, 3])]);
-      });
-    });
-
-    test('truncate and add new item', () {
-      list.length = 1;
-      list.add(42);
-      expect(list, [1, 42]);
-      return new Future(() {
-        expectChanges(changes, [
-          _change(1, removed: [2, 3], addedCount: 1)
-        ]);
-      });
-    });
-
-    test('truncate and add same item', () {
-      list.length = 1;
-      list.add(2);
-      expect(list, [1, 2]);
-      return new Future(() {
-        expectChanges(changes, []);
-      });
-    });
-  });
-
-  test('toString', () {
-    var list = toObservable([1, 2, 3]);
-    expect(list.toString(), '[1, 2, 3]');
-  });
-
-  group('change records', () {
-
-    List<ChangeRecord> propRecords;
-    List<ListChangeRecord> listRecords;
-
-    setUp(() {
-      list = toObservable([1, 2, 3, 1, 3, 4]);
-      propRecords = null;
-      listRecords = null;
-      sub = list.changes.listen((r) { propRecords = r; });
-      sub2 = list.listChanges.listen((r) { listRecords = r; });
-    });
-
-    tearDown(sharedTearDown);
-
-    test('read operations', () {
-      expect(list.length, 6);
-      expect(list[0], 1);
-      expect(list.indexOf(4), 5);
-      expect(list.indexOf(1), 0);
-      expect(list.indexOf(1, 1), 3);
-      expect(list.lastIndexOf(1), 3);
-      expect(list.last, 4);
-      var copy = new List<int>();
-      list.forEach((i) { copy.add(i); });
-      expect(copy, orderedEquals([1, 2, 3, 1, 3, 4]));
-      return new Future(() {
-        // no change from read-only operators
-        expectChanges(propRecords, null);
-        expectChanges(listRecords, null);
-      });
-    });
-
-    test('add', () {
-      list.add(5);
-      list.add(6);
-      expect(list, orderedEquals([1, 2, 3, 1, 3, 4, 5, 6]));
-
-      return new Future(() {
-        expectChanges(propRecords, [
-          _lengthChange(6, 7),
-          _lengthChange(7, 8),
-        ]);
-        expectChanges(listRecords, [ _change(6, addedCount: 2) ]);
-      });
-    });
-
-    test('[]=', () {
-      list[1] = list.last;
-      expect(list, orderedEquals([1, 4, 3, 1, 3, 4]));
-
-      return new Future(() {
-        expectChanges(propRecords, null);
-        expectChanges(listRecords, [ _change(1, addedCount: 1, removed: [2]) ]);
-      });
-    });
-
-    test('removeLast', () {
-      expect(list.removeLast(), 4);
-      expect(list, orderedEquals([1, 2, 3, 1, 3]));
-
-      return new Future(() {
-        expectChanges(propRecords, [_lengthChange(6, 5)]);
-        expectChanges(listRecords, [_change(5, removed: [4])]);
-      });
-    });
-
-    test('removeRange', () {
-      list.removeRange(1, 4);
-      expect(list, orderedEquals([1, 3, 4]));
-
-      return new Future(() {
-        expectChanges(propRecords, [_lengthChange(6, 3)]);
-        expectChanges(listRecords, [_change(1, removed: [2, 3, 1])]);
-      });
-    });
-
-    test('sort', () {
-      list.sort((x, y) => x - y);
-      expect(list, orderedEquals([1, 1, 2, 3, 3, 4]));
-
-      return new Future(() {
-        expectChanges(propRecords, null);
-        expectChanges(listRecords, [
-          _change(1, addedCount: 1),
-          _change(4, removed: [1])
-        ]);
-      });
-    });
-
-    test('clear', () {
-      list.clear();
-      expect(list, []);
-
-      return new Future(() {
-        expectChanges(propRecords, [
-            _lengthChange(6, 0),
-            new PropertyChangeRecord(list, #isEmpty, false, true),
-            new PropertyChangeRecord(list, #isNotEmpty, true, false),
-        ]);
-        expectChanges(listRecords, [_change(0, removed: [1, 2, 3, 1, 3, 4])]);
-      });
-    });
-  });
-}
-
-ObservableList list;
-
-_lengthChange(int oldValue, int newValue) =>
-    new PropertyChangeRecord(list, #length, oldValue, newValue);
-
-_change(index, {removed: const [], addedCount: 0}) => new ListChangeRecord(
-    list, index, removed: removed, addedCount: addedCount);