Roll Observatory packages and add a roll script

packages/polymer/test/layout_test.dart

+// Copyright (c) 2014, 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.
+
+library polymer.test.web.layout_test;
+
+import 'dart:async';
+import 'dart:html';
+import 'dart:js';
+import 'package:polymer/polymer.dart';
+import 'package:unittest/html_config.dart';
+import 'package:unittest/unittest.dart';
+
+main() => initPolymer().then((zone) => zone.run(() {
+  useHtmlConfiguration();
+
+  setUp(() => Polymer.onReady);
+
+  getTestElements(test) {
+    var t = document.getElementById(test);
+    return {
+      'h1': t.querySelector('[horizontal] > [flex]').getComputedStyle(),
+      'h2': t.querySelector('[horizontal] > [flex][sized]').getComputedStyle(),
+      'v1': t.querySelector('[vertical] > [flex]').getComputedStyle(),
+      'v2': t.querySelector('[vertical] > [flex][sized]').getComputedStyle()
+    };
+  }
+
+  // no-size container tests
+
+  test('flex-layout-attributies', () {
+    var elements = getTestElements('test1');
+    expect(elements['h1'].width, elements['h2'].width,
+        reason: 'unsized container: horizontal flex items have same width');
+    expect(elements['v1'].height, '0px',
+        reason: 'unsized container: vertical flex items have no intrinsic '
+        'height');
+  });
+
+  test('flex auto layout attributes', () {
+    var elements = getTestElements('test2');
+    expect(elements['h1'].width, isNot(elements['h2'].width),
+        reason: 'unsized container: horizontal flex auto items have intrinsic '
+        'width + flex amount');
+    expect(elements['v1'].height, isNot('0px'),
+        reason: 'unsized container: vertical flex auto items have intrinsic '
+        'height');
+  });
+
+  test('flex auto-vertical layout attributes', () {
+    var elements = getTestElements('test3');
+    expect(elements['h1'].width, elements['h2'].width,
+        reason: 'unsized container: horizontal flex auto-vertical items have '
+        'same width');
+    expect(elements['v1'].height, isNot('0px'),
+        reason: 'unsized container: vertical flex auto-vertical items have '
+        'intrinsic height');
+  });
+
+  // Sized container tests
+
+  test('flex layout attributes', () {
+    var elements = getTestElements('test4');
+    expect(elements['h1'].width, elements['h2'].width,
+        reason: 'sized container: horizontal flex items have same width');
+    expect(elements['v1'].height, elements['v2'].height,
+        reason: 'sized container: vertical flex items have same height');
+  });
+
+  test('flex auto layout attributes', () {
+    var elements = getTestElements('test5');
+    expect(elements['h1'].width, isNot(elements['h2'].width),
+        reason: 'sized container: horizontal flex auto items have intrinsic '
+        'width + flex amount');
+    expect(elements['v1'].height, isNot('0px'),
+        reason: 'sized container: vertical flex auto items have intrinsic '
+        'height');
+    expect(elements['v1'].height, isNot(elements['v2'].height),
+        reason: 'sized container: vertical flex auto items have intrinsic '
+        'width + flex amount');
+  });
+
+  test('flex auto-vertical layout attributes', () {
+    var elements = getTestElements('test3');
+    expect(elements['h1'].width, elements['h2'].width,
+        reason: 'unsized container: horizontal flex auto-vertical items have '
+        'same width');
+    expect(elements['v1'].height, isNot('0px'),
+        reason: 'sized container: vertical flex auto-vertical items have '
+        'intrinsic height');
+    expect(elements['v1'].height, isNot(elements['v2'].height),
+        reason: 'sized container: vertical flex auto-vertical items have '
+        'intrinsic width + flex amount');
+  });
+}));