Reorganize tests for samples so the test is discoverable from the sample

samples/tests/samples/lib/view/view_test.dart

-// Copyright (c) 2011, 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 view_tests;
-
-import 'dart:html';
-import '../../../../swarm/swarm_ui_lib/base/base.dart';
-import '../../../../swarm/swarm_ui_lib/view/view.dart';
-import '../../../../../pkg/unittest/lib/unittest.dart';
-import '../../../../../pkg/unittest/lib/html_config.dart';
-
-void main() {
-  useHtmlConfiguration();
-  test('does not render immediately', () {
-    final view = new TestView();
-    expect(view.isRendered, isFalse);
-
-    view.addToDocument(document.body);
-    expect(view.isRendered, isTrue);
-  });
-
-  group('addToDocument()', () {
-    test('causes view to render', () {
-      final view = new TestView();
-      view.addToDocument(document.body);
-      expect(view.isRendered, isTrue);
-    });
-
-    test('calls afterRender()', () {
-      var result = '';
-      final view = new TestView();
-      view.renderFn = () {
-        result = '${result}render';
-        return new Element.html('<div class="test"></div>');
-      };
-
-      view.afterRenderFn = (node) { result = '${result}after'; };
-
-
-      view.addToDocument(document.body);
-      expect(result, equals('renderafter'));
-    });
-
-    test('calls enterDocument()', () {
-      final view = new TestView();
-      bool entered = false;
-      view.enterDocumentFn = () { entered = true; };
-
-      view.addToDocument(document.body);
-      expect(entered, isTrue);
-    });
-  });
-
-  group('afterRender()', () {
-    test('passes rendered node', () {
-      final rendered = new Element.html('<div class="node"></div>');
-      final view = new TestView();
-      view.renderFn = () => rendered;
-      view.afterRenderFn = (node) { expect(node, equals(rendered)); };
-
-      view.addToDocument(document.body);
-    });
-  });
-
-  group('childViewAdded()', () {
-    test('calls enterDocument() if parent is in document', () {
-      final parent = new TestView();
-      parent.addToDocument(document.body);
-
-      bool entered = false;
-      final child = new TestView();
-      child.enterDocumentFn = () { entered = true; };
-
-      // Add the child.
-      parent.childViews = [child];
-      parent.childViewAdded(child);
-
-      expect(entered, isTrue);
-    });
-
-    test('does not call enterDocument() if parent is not in document', () {
-      final parent = new TestView();
-
-      bool entered = false;
-      final child = new TestView();
-      child.enterDocumentFn = () { entered = true; };
-
-      // Add the child.
-      parent.childViews = [child];
-      parent.childViewAdded(child);
-
-      expect(entered, isFalse);
-    });
-
-    test('calls enterDocument() each time added', () {
-      final parent = new TestView();
-      parent.addToDocument(document.body);
-
-      var entered = 0;
-      final child = new TestView();
-      child.enterDocumentFn = () { entered++; };
-
-      // Add the child.
-      parent.childViews = [child];
-      parent.childViewAdded(child);
-      parent.childViewRemoved(child);
-      parent.childViewAdded(child);
-      parent.childViewRemoved(child);
-      parent.childViewAdded(child);
-      parent.childViewRemoved(child);
-
-      expect(entered, equals(3));
-    });
-  });
-
-  group('childViewRemoved()', () {
-    test('calls exitDocument() if parent is in document', () {
-      final parent = new TestView();
-      parent.addToDocument(document.body);
-
-      bool exited = false;
-      final child = new TestView();
-      child.exitDocumentFn = () { exited = true; };
-
-      // Remove the child.
-      parent.childViews = [];
-      parent.childViewRemoved(child);
-
-      expect(exited, isTrue);
-    });
-
-    test('does not call exitDocument() if parent is not in document', () {
-      final parent = new TestView();
-
-      bool exited = false;
-      final child = new TestView();
-      child.exitDocumentFn = () { exited = true; };
-
-      // Remove the child.
-      parent.childViews = [];
-      parent.childViewRemoved(child);
-
-      expect(exited, isFalse);
-    });
-
-    test('calls exitDocument() each time removed', () {
-      final parent = new TestView();
-      parent.addToDocument(document.body);
-
-      var exited = 0;
-      final child = new TestView();
-      child.exitDocumentFn = () { exited++; };
-
-      // Add the child.
-      parent.childViews = [child];
-      parent.childViewAdded(child);
-      parent.childViewRemoved(child);
-      parent.childViewAdded(child);
-      parent.childViewRemoved(child);
-      parent.childViewAdded(child);
-      parent.childViewRemoved(child);
-
-      expect(exited, equals(3));
-    });
-  });
-
-  group('enterDocument()', () {
-    test('children are called before parents', () {
-      var result = '';
-
-      final parent = new TestView();
-      parent.enterDocumentFn = () { result = '${result}parent'; };
-
-      final child = new TestView();
-      child.enterDocumentFn = () { result = '${result}child'; };
-
-      parent.childViews = [child];
-
-      parent.addToDocument(document.body);
-      expect(result, equals('childparent'));
-    });
-  });
-}
-
-class TestView extends View {
-  Function renderFn;
-  Function afterRenderFn;
-  Function enterDocumentFn;
-  Function exitDocumentFn;
-  List<View> childViews;
-
-  TestView() : super(), childViews = [] {
-    // Default behavior.
-    renderFn = () => new Element.html('<div class="test"></div>');
-    afterRenderFn = (node) {};
-    enterDocumentFn = () {};
-    exitDocumentFn = () {};
-  }
-
-  Element render() => renderFn();
-  void afterRender(Element node) { afterRenderFn(node); }
-  void enterDocument() { enterDocumentFn(); }
-  void exitDocument() { exitDocumentFn(); }
-}