77 lines
2.4 KiB
JavaScript
77 lines
2.4 KiB
JavaScript
var oldHelpers;
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module("Discourse.View", {
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setup: function() {
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oldHelpers = Ember.Handlebars.helpers;
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},
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teardown: function() {
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Ember.Handlebars.helpers = oldHelpers;
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}
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});
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test("mixes in Discourse.Presence", function() {
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ok(Discourse.Presence.detect(Discourse.View.create()));
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});
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test("registerHelper: enables embedding a child view in a parent view via dedicated, named helper instead of generic 'view' helper", function() {
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Discourse.View.registerHelper("childViewHelper", Ember.View.extend({
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template: Ember.Handlebars.compile('{{view.text}}')
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}));
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var parentView = Ember.View.extend({
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template: Ember.Handlebars.compile('{{childViewHelper id="child" text="foo"}}')
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}).create();
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Ember.run(function() {
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parentView.appendTo("#qunit-fixture");
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});
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equal(parentView.$("#child").length, 1, "child view registered as helper is appended to the parent view");
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equal(parentView.$("#child").text(), "foo", "child view registered as helper gets parameters provided during helper invocation in parent's template");
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});
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test("renderIfChanged: rerenders the whole view template when one of registered view fields changes", function() {
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var view, rerenderSpy;
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var viewRerendersOnceWhen = function(message, changeCallback) {
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rerenderSpy.reset();
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Ember.run(function() { changeCallback(); });
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ok(rerenderSpy.calledOnce, "view rerenders when " + message);
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};
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var viewDoesNotRerenderWhen = function(message, changeCallback) {
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rerenderSpy.reset();
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Ember.run(function() { changeCallback(); });
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ok(!rerenderSpy.called, "view does not rerender when " + message);
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};
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view = Ember.View.extend({
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shouldRerender: Discourse.View.renderIfChanged("simple", "complex.@each.nested")
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}).create({
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simple: "initial value",
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complex: [Ember.Object.create({nested: "initial value"})],
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unregistered: "initial value"
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});
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rerenderSpy = sinon.spy(view, "rerender");
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Ember.run(function() {
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view.appendTo("#qunit-fixture");
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});
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viewRerendersOnceWhen("a simple field (holding a string) changes", function() {
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view.set("simple", "updated value");
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});
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viewRerendersOnceWhen("a nested sub-field of a complex field (holding an array of objects) changes", function() {
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view.get("complex").objectAt(0).set("nested", "updated value");
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});
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viewDoesNotRerenderWhen("unregistered field changes", function() {
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view.set("unregistered", "updated value");
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});
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});
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