Adding Angular and dependent packages for testing

third_party/pkg/angular/test/directive/ng_switch_spec.dart

+library ng_switch_spec;
+
+import '../_specs.dart';
+
+main() => describe('ngSwitch', () {
+  TestBed _;
+
+  beforeEach(inject((TestBed tb) => _ = tb));
+
+  it('should switch on value change', inject(() {
+    var element = _.compile(
+        '<div ng-switch="select">' +
+        '<div ng-switch-when="1">first:{{name}}</div>' +
+        '<div ng-switch-when="2">second:{{name}}</div>' +
+        '<div ng-switch-when="true">true:{{name}}</div>' +
+        '</div>');
+    expect(element.innerHtml).toEqual(
+        '<!--ANCHOR: [ng-switch-when]=1--><!--ANCHOR: [ng-switch-when]=2--><!--ANCHOR: [ng-switch-when]=true-->');
+    _.rootScope.select = 1;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('first:');
+    _.rootScope.name="shyam";
+    _.rootScope.$apply();
+    expect(element.text).toEqual('first:shyam');
+    _.rootScope.select = 2;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('second:shyam');
+    _.rootScope.name = 'misko';
+    _.rootScope.$apply();
+    expect(element.text).toEqual('second:misko');
+    _.rootScope.select = true;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('true:misko');
+  }));
+
+
+  it('should show all switch-whens that match the current value', inject(() {
+    var element = _.compile(
+      '<ul ng-switch="select">' +
+        '<li ng-switch-when="1">first:{{name}}</li>' +
+        '<li ng-switch-when="1">, first too:{{name}}</li>' +
+        '<li ng-switch-when="2">second:{{name}}</li>' +
+        '<li ng-switch-when="true">true:{{name}}</li>' +
+      '</ul>');
+    expect(element.innerHtml).toEqual('<!--ANCHOR: [ng-switch-when]=1-->'
+                                   '<!--ANCHOR: [ng-switch-when]=1-->'
+                                   '<!--ANCHOR: [ng-switch-when]=2-->'
+                                   '<!--ANCHOR: [ng-switch-when]=true-->');
+    _.rootScope.select = 1;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('first:, first too:');
+    _.rootScope.name="shyam";
+    _.rootScope.$apply();
+    expect(element.text).toEqual('first:shyam, first too:shyam');
+    _.rootScope.select = 2;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('second:shyam');
+    _.rootScope.name = 'misko';
+    _.rootScope.$apply();
+    expect(element.text).toEqual('second:misko');
+    _.rootScope.select = true;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('true:misko');
+  }));
+
+
+  it('should switch on switch-when-default', inject(() {
+    var element = _.compile(
+      '<div ng-switch="select">' +
+        '<div ng-switch-when="1">one</div>' +
+        '<div ng-switch-default>other</div>' +
+      '</div ng-switch>');
+    _.rootScope.$apply();
+    expect(element.text).toEqual('other');
+    _.rootScope.select = 1;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('one');
+  }));
+
+
+  it('should show all switch-when-default', inject(() {
+    var element = _.compile(
+      '<ul ng-switch="select">' +
+        '<li ng-switch-when="1">one</li>' +
+        '<li ng-switch-default>other</li>' +
+        '<li ng-switch-default>, other too</li>' +
+      '</ul>');
+    _.rootScope.$apply();
+    expect(element.text).toEqual('other, other too');
+    _.rootScope.select = 1;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('one');
+  }));
+
+
+  it('should always display the elements that do not match a switch',
+      inject(() {
+    var element = _.compile(
+      '<ul ng-switch="select">' +
+        '<li>always </li>' +
+        '<li ng-switch-when="1">one </li>' +
+        '<li ng-switch-when="2">two </li>' +
+        '<li ng-switch-default>other, </li>' +
+        '<li ng-switch-default>other too </li>' +
+      '</ul>');
+    _.rootScope.$apply();
+    expect(element.text).toEqual('always other, other too ');
+    _.rootScope.select = 1;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('always one ');
+  }));
+
+
+  it('should display the elements that do not have ngSwitchWhen nor ' +
+     'ngSwitchDefault at the position specified in the template, when the ' +
+     'first and last elements in the ngSwitch body do not have a ngSwitch* ' +
+     'directive', inject(() {
+    var element = _.compile(
+      '<ul ng-switch="select">' +
+        '<li>1</li>' +
+        '<li ng-switch-when="1">2</li>' +
+        '<li>3</li>' +
+        '<li ng-switch-when="2">4</li>' +
+        '<li ng-switch-default>5</li>' +
+        '<li>6</li>' +
+        '<li ng-switch-default>7</li>' +
+        '<li>8</li>' +
+      '</ul>');
+    _.rootScope.$apply();
+    expect(element.text).toEqual('135678');
+    _.rootScope.select = 1;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('12368');
+  }));
+
+
+  it('should display the elements that do not have ngSwitchWhen nor ' +
+     'ngSwitchDefault at the position specified in the template when the ' +
+     'first and last elements in the ngSwitch have a ngSwitch* directive',
+      inject(() {
+    var element = _.compile(
+      '<ul ng-switch="select">' +
+        '<li ng-switch-when="1">2</li>' +
+        '<li>3</li>' +
+        '<li ng-switch-when="2">4</li>' +
+        '<li ng-switch-default>5</li>' +
+        '<li>6</li>' +
+        '<li ng-switch-default>7</li>' +
+      '</ul>');
+    _.rootScope.$apply();
+    expect(element.text).toEqual('3567');
+    _.rootScope.select = 1;
+    _.rootScope.$apply();
+    expect(element.text).toEqual('236');
+  }));
+
+
+  it('should call change on switch', inject(() {
+    var element = _.compile(
+      '<div ng-switch="url" change="name=\'works\'">' +
+        '<div ng-switch-when="a">{{name}}</div>' +
+      '</div ng-switch>');
+    _.rootScope.url = 'a';
+    _.rootScope.$apply();
+    expect(_.rootScope.name).toEqual('works');
+    expect(element.text).toEqual('works');
+  }));
+
+
+  it('should properly create and destroy child scopes', inject(() {
+    var element = _.compile(
+      '<div ng-switch="url">' +
+        '<div ng-switch-when="a" probe="probe">{{name}}</div>' +
+      '</div ng-switch>');
+    _.rootScope.$apply();
+
+    var getChildScope = () => _.rootScope.probe == null ?
+        null : _.rootScope.probe.scope;
+
+    expect(getChildScope()).toBeNull();
+
+    _.rootScope.url = 'a';
+    _.rootScope.name = 'works';
+    _.rootScope.$apply();
+    var child1 = getChildScope();
+    expect(child1).toBeNotNull();
+    expect(element.text).toEqual('works');
+    var destroyListener = jasmine.createSpy('watch listener');
+    var listenerRemove = child1.$on('\$destroy', destroyListener);
+
+    _.rootScope.url = 'x';
+    _.rootScope.$apply();
+    print(element);
+    print(getChildScope());
+    expect(getChildScope()).toBeNull();
+    expect(destroyListener).toHaveBeenCalledOnce();
+    listenerRemove();
+
+    _.rootScope.url = 'a';
+    _.rootScope.$apply();
+    var child2 = getChildScope();
+    expect(child2).toBeDefined();
+    expect(child2).not.toBe(child1);
+  }));
+});