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each_test.js
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each_test.js
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var get = Ember.get, set = Ember.set;
var people, view;
var template, templateMyView;
var templateFor = function(template) {
return Ember.Handlebars.compile(template);
};
var originalLookup = Ember.lookup, lookup;
module("the #each helper", {
setup: function() {
Ember.lookup = lookup = { Ember: Ember };
template = templateFor("{{#each view.people}}{{name}}{{/each}}");
people = Ember.A([{ name: "Steve Holt" }, { name: "Annabelle" }]);
view = Ember.View.create({
template: template,
people: people
});
templateMyView = templateFor("{{name}}");
lookup.MyView = Ember.View.extend({
template: templateMyView
});
append(view);
},
teardown: function() {
Ember.run(function(){
view.destroy();
view = null;
});
Ember.lookup = originalLookup;
}
});
var append = function(view) {
Ember.run(function() {
view.appendTo('#qunit-fixture');
});
};
var assertHTML = function(view, expectedHTML) {
var html = view.$().html();
// IE 8 (and prior?) adds the \r\n
html = html.replace(/<script[^>]*><\/script>/ig, '').replace(/[\r\n]/g, '');
equal(html, expectedHTML);
};
var assertText = function(view, expectedText) {
equal(view.$().text(), expectedText);
};
test("it renders the template for each item in an array", function() {
assertHTML(view, "Steve HoltAnnabelle");
});
test("it updates the view if an item is added", function() {
Ember.run(function() {
people.pushObject({ name: "Tom Dale" });
});
assertHTML(view, "Steve HoltAnnabelleTom Dale");
});
test("it allows you to access the current context using {{this}}", function() {
Ember.run(function() { view.destroy(); }); // destroy existing view
view = Ember.View.create({
template: templateFor("{{#each view.people}}{{this}}{{/each}}"),
people: Ember.A(['Black Francis', 'Joey Santiago', 'Kim Deal', 'David Lovering'])
});
append(view);
assertHTML(view, "Black FrancisJoey SantiagoKim DealDavid Lovering");
});
test("it updates the view if an item is removed", function() {
Ember.run(function() {
people.removeAt(0);
});
assertHTML(view, "Annabelle");
});
test("it updates the view if an item is replaced", function() {
Ember.run(function() {
people.removeAt(0);
people.insertAt(0, { name: "Kazuki" });
});
assertHTML(view, "KazukiAnnabelle");
});
test("can add and replace in the same runloop", function() {
Ember.run(function() {
people.pushObject({ name: "Tom Dale" });
people.removeAt(0);
people.insertAt(0, { name: "Kazuki" });
});
assertHTML(view, "KazukiAnnabelleTom Dale");
});
test("can add and replace the object before the add in the same runloop", function() {
Ember.run(function() {
people.pushObject({ name: "Tom Dale" });
people.removeAt(1);
people.insertAt(1, { name: "Kazuki" });
});
assertHTML(view, "Steve HoltKazukiTom Dale");
});
test("can add and replace complicatedly", function() {
Ember.run(function() {
people.pushObject({ name: "Tom Dale" });
people.removeAt(1);
people.insertAt(1, { name: "Kazuki" });
people.pushObject({ name: "Firestone" });
people.pushObject({ name: "McMunch" });
people.removeAt(3);
});
assertHTML(view, "Steve HoltKazukiTom DaleMcMunch");
});
test("can add and replace complicatedly harder", function() {
Ember.run(function() {
people.pushObject({ name: "Tom Dale" });
people.removeAt(1);
people.insertAt(1, { name: "Kazuki" });
people.pushObject({ name: "Firestone" });
people.pushObject({ name: "McMunch" });
people.removeAt(2);
});
assertHTML(view, "Steve HoltKazukiFirestoneMcMunch");
});
test("it works inside a ul element", function() {
var ulView = Ember.View.create({
template: templateFor('<ul>{{#each view.people}}<li>{{name}}</li>{{/each}}</ul>'),
people: people
});
append(ulView);
equal(ulView.$('li').length, 2, "renders two <li> elements");
Ember.run(function() {
people.pushObject({name: "Black Francis"});
});
equal(ulView.$('li').length, 3, "renders an additional <li> element when an object is added");
Ember.run(function() {
ulView.destroy();
});
});
test("it works inside a table element", function() {
var tableView = Ember.View.create({
template: templateFor('<table><tbody>{{#each view.people}}<tr><td>{{name}}</td></tr>{{/each}}</tbody></table>'),
people: people
});
append(tableView);
equal(tableView.$('td').length, 2, "renders two <td> elements");
Ember.run(function() {
people.pushObject({name: "Black Francis"});
});
equal(tableView.$('td').length, 3, "renders an additional <td> element when an object is added");
Ember.run(function() {
people.insertAt(0, {name: "Kim Deal"});
});
equal(tableView.$('td').length, 4, "renders an additional <td> when an object is inserted at the beginning of the array");
Ember.run(function() {
tableView.destroy();
});
});
test("it supports itemController", function() {
var Controller = Ember.Controller.extend({
controllerName: Ember.computed(function() {
return "controller:"+this.get('content.name');
})
});
var container = new Ember.Container();
Ember.run(function() { view.destroy(); }); // destroy existing view
var parentController = {
container: container
};
view = Ember.View.create({
template: templateFor('{{#each view.people itemController="person"}}{{controllerName}}{{/each}}'),
people: people,
controller: parentController
});
container.register('controller:person', Controller);
append(view);
equal(view.$().text(), "controller:Steve Holtcontroller:Annabelle");
Ember.run(function() {
view.rerender();
});
assertText(view, "controller:Steve Holtcontroller:Annabelle");
Ember.run(function() {
people.pushObject({ name: "Yehuda Katz" });
});
assertText(view, "controller:Steve Holtcontroller:Annabellecontroller:Yehuda Katz");
Ember.run(function() {
set(view, 'people', Ember.A([{ name: "Trek Glowacki" }, { name: "Geoffrey Grosenbach" }]));
});
assertText(view, "controller:Trek Glowackicontroller:Geoffrey Grosenbach");
var controller = view.get('_childViews')[0].get('controller');
strictEqual(view.get('_childViews')[0].get('_arrayController.target'), parentController, "the target property of the child controllers are set correctly");
});
test("itemController gets a parentController property", function() {
// using an ObjectController for this test to verify that parentController does accidentally get set
// on the proxied model.
var Controller = Ember.ObjectController.extend({
controllerName: Ember.computed(function() {
return "controller:"+this.get('content.name') + ' of ' + this.get('parentController.company');
})
}),
container = new Ember.Container(),
parentController = {
container: container,
company: 'Yapp'
};
Ember.run(function() { view.destroy(); }); // destroy existing view
view = Ember.View.create({
template: templateFor('{{#each view.people itemController="person"}}{{controllerName}}{{/each}}'),
people: people,
controller: parentController
});
container.register('controller:person', Controller);
append(view);
equal(view.$().text(), "controller:Steve Holt of Yappcontroller:Annabelle of Yapp");
});
test("it supports itemController when using a custom keyword", function() {
var Controller = Ember.Controller.extend({
controllerName: Ember.computed(function() {
return "controller:"+this.get('content.name');
})
});
var container = new Ember.Container();
Ember.run(function() { view.destroy(); }); // destroy existing view
view = Ember.View.create({
template: templateFor('{{#each person in view.people itemController="person"}}{{person.controllerName}}{{/each}}'),
people: people,
controller: {
container: container
}
});
container.register('controller:person', Controller);
append(view);
equal(view.$().text(), "controller:Steve Holtcontroller:Annabelle");
Ember.run(function() {
view.rerender();
});
equal(view.$().text(), "controller:Steve Holtcontroller:Annabelle");
});
test("it supports {{itemViewClass=}}", function() {
Ember.run(function() { view.destroy(); }); // destroy existing view
view = Ember.View.create({
template: templateFor('{{each view.people itemViewClass="MyView"}}'),
people: people
});
append(view);
assertText(view, "Steve HoltAnnabelle");
});
test("it supports {{itemViewClass=}} with tagName", function() {
Ember.TESTING_DEPRECATION = true;
try {
Ember.run(function() { view.destroy(); }); // destroy existing view
view = Ember.View.create({
template: templateFor('{{each view.people itemViewClass="MyView" tagName="ul"}}'),
people: people
});
append(view);
var html = view.$().html();
// IE 8 (and prior?) adds the \r\n
html = html.replace(/<script[^>]*><\/script>/ig, '').replace(/[\r\n]/g, '');
html = html.replace(/<div[^>]*><\/div>/ig, '').replace(/[\r\n]/g, '');
html = html.replace(/<li[^>]*/ig, '<li');
// Use lowercase since IE 8 make tagnames uppercase
equal(html.toLowerCase(), "<ul><li>steve holt</li><li>annabelle</li></ul>");
} finally {
Ember.TESTING_DEPRECATION = false;
}
});
test("it supports {{itemViewClass=}} with in format", function() {
lookup.MyView = Ember.View.extend({
template: templateFor("{{person.name}}")
});
Ember.run(function() { view.destroy(); }); // destroy existing view
view = Ember.View.create({
template: templateFor('{{each person in view.people itemViewClass="MyView"}}'),
people: people
});
append(view);
assertText(view, "Steve HoltAnnabelle");
});
test("it supports {{else}}", function() {
Ember.run(function() { view.destroy(); }); // destroy existing view
view = Ember.View.create({
template: templateFor("{{#each view.items}}{{this}}{{else}}Nothing{{/each}}"),
items: Ember.A(['one', 'two'])
});
append(view);
assertHTML(view, "onetwo");
Ember.run(function() {
view.set('items', Ember.A([]));
});
assertHTML(view, "Nothing");
});
test("it works with the controller keyword", function() {
var controller = Ember.ArrayController.create({
content: Ember.A(["foo", "bar", "baz"])
});
Ember.run(function() { view.destroy(); }); // destroy existing view
view = Ember.View.create({
controller: controller,
template: templateFor("{{#view}}{{#each controller}}{{this}}{{/each}}{{/view}}")
});
append(view);
equal(view.$().text(), "foobarbaz");
});
module("{{#each foo in bar}}", {
teardown: function() {
Ember.run(function() {
view.destroy();
});
}
});
test("#each accepts a name binding", function() {
view = Ember.View.create({
template: templateFor("{{#each item in view.items}}{{view.title}} {{item}}{{/each}}"),
title: "My Cool Each Test",
items: Ember.A([1, 2])
});
append(view);
equal(view.$().text(), "My Cool Each Test 1My Cool Each Test 2");
});
test("#each accepts a name binding and does not change the context", function() {
var controller = Ember.Controller.create({
name: 'bob the controller'
}),
obj = Ember.Object.create({
name: 'henry the item'
});
view = Ember.View.create({
template: templateFor("{{#each item in view.items}}{{name}}{{/each}}"),
title: "My Cool Each Test",
items: Ember.A([obj]),
controller: controller
});
append(view);
equal(view.$().text(), "bob the controller");
});
test("#each accepts a name binding and can display child properties", function() {
view = Ember.View.create({
template: templateFor("{{#each item in view.items}}{{view.title}} {{item.name}}{{/each}}"),
title: "My Cool Each Test",
items: Ember.A([{ name: 1 }, { name: 2 }])
});
append(view);
equal(view.$().text(), "My Cool Each Test 1My Cool Each Test 2");
});
test("#each accepts 'this' as the right hand side", function() {
view = Ember.View.create({
template: templateFor("{{#each item in this}}{{view.title}} {{item.name}}{{/each}}"),
title: "My Cool Each Test",
controller: Ember.A([{ name: 1 }, { name: 2 }])
});
append(view);
equal(view.$().text(), "My Cool Each Test 1My Cool Each Test 2");
});
test("views inside #each preserve the new context", function() {
var controller = Ember.A([ { name: "Adam" }, { name: "Steve" } ]);
view = Ember.View.create({
controller: controller,
template: templateFor('{{#each controller}}{{#view}}{{name}}{{/view}}{{/each}}')
});
append(view);
equal(view.$().text(), "AdamSteve");
});
test("controller is assignable inside an #each", function() {
var controller = Ember.ArrayController.create({
content: Ember.A([ { name: "Adam" }, { name: "Steve" } ])
});
view = Ember.View.create({
controller: controller,
template: templateFor('{{#each personController in this}}{{#view controllerBinding="personController"}}{{name}}{{/view}}{{/each}}')
});
append(view);
equal(view.$().text(), "AdamSteve");
});
test("single-arg each defaults to current context", function() {
view = Ember.View.create({
context: Ember.A([ { name: "Adam" }, { name: "Steve" } ]),
template: templateFor('{{#each}}{{name}}{{/each}}')
});
append(view);
equal(view.$().text(), "AdamSteve");
});
test("single-arg each will iterate over controller if present", function() {
view = Ember.View.create({
controller: Ember.A([ { name: "Adam" }, { name: "Steve" } ]),
template: templateFor('{{#each}}{{name}}{{/each}}')
});
append(view);
equal(view.$().text(), "AdamSteve");
});