我有两个RequireJS模块,一个用于从外部服务获取数据,一个负责将回调传递给第一个模块。
这是第一个非常基本的模块:
define(["jquery"], function($) {
return {
/**
* Retrieves all the companies that do not employs the provided employee
* @param employeeId ID of the employee
* @param successCallback callback executed on successful request completion
* @return matching companies
*/
fetchCompanies: function(employeeId, successCallback) {
var url = '/employees/' + employeeId + '/nonEmployers';
return $.getJSON(url, successCallback);
}
};
});
最有趣的一个,它将生成一个新的下拉列表并将其注入指定的DOM元素(这是被测试的):
define([
'jquery',
'vendor/underscore',
'modules/non-employers',
'text!tpl/employeeOption.tpl'], function($, _, nonEmployers, employeeTemplate) {
var updateCompanies = function(selectedEmployeeId, companyDropDownSelector) {
nonEmployers.fetchCompanies(selectedEmployeeId, function(data) {
var template = _.template(employeeTemplate),
newContents = _.reduce(data, function(string,element) {
return string + template({
value: element.id,
display: element.name
});
}, "<option value='-1'>select a client...</option>\n");
$(companyDropDownSelector).html(newContents);
});
};
return {
/**
* Updates the dropdown identified by companyDropDownSelector
* with the companies that are non employing the selected employee
* @param employeeDropDownSelector selector of the employee dropdown
* @param companyDropDownSelector selector of the company dropdown
*/
observeEmployees: function(employeeDropDownSelector, companyDropDownSelector) {
$(employeeDropDownSelector).change(function() {
var selectedEmployeeId = $(employeeDropDownSelector + " option:selected").val();
if (selectedEmployeeId > 0) {
updateCompanies(selectedEmployeeId, companyDropDownSelector);
}
});
}
};
});
我正在尝试使用Jasmine-fixture和使用waitsFor来测试最后一个模块,以异步方式检查设置测试DOM结构是否已被修改。但是,始终会达到超时。
如果您能在以下测试中发现错误,我将非常感激(主旨:https://gist.github.com/fbiville/6223bb346476ca88f55d):
define(["jquery", "modules/non-employers", "modules/pages/activities"], function($, nonEmployers, activities) {
describe("activities test suite", function() {
var $form, $employeesDropDown, $companiesDropDown;
beforeEach(function() {
$form = affix('form[id=testForm]');
$employeesDropDown = $form.affix('select[id=employees]');
$employeesDropDown.affix('option[selected=selected]');
$employeesDropDown.affix('option[value=1]');
$companiesDropDown = $form.affix('select[id=companies]');
$companiesDropDown.affix('option');
});
it("should update the company dropdown", function() {
spyOn(nonEmployers, "fetchCompanies").andCallFake(function(employeeId, callback) {
callback([{id: 42, name: "ACME"}, {id: 100, name: "OUI"}]);
});
activities.observeEmployees('#employees', '#companies');
$('#employees').trigger('change');
waitsFor(function() {
var companiesContents = $('#companies').html(),
result = expect(companiesContents).toContain('<option value="42">ACME</option>');
return result && expect(companiesContents).toContain('<option value="100">OUI</option>');
}, 'DOM has never been updated', 10000);
});
});
});
提前致谢!
罗尔夫
P.S。:用$(employeeDropDownSelector).change
替换$(employeeDropDownSelector).on('change',
和/或用{domReady包裹activities.observeEmployees
调用(和$('#employees').trigger('change');
)会产生相同的结果
P.P.S。:这个错误是原因 - &gt; SEVERE: runtimeError: message=[An invalid or illegal selector was specified (selector: '[id='employees'] :selected' error: Invalid selector: *[id="employees"] *:selected).] sourceName=[http://localhost:59811/src/vendor/require-jquery.js] line=[6002] lineSource=[null] lineOffset=[0]
。
P.P.P.S。:似乎HtmlUnit不支持CSS3选择器(WTF?),甚至强迫最新发布的版本作为jasmine-maven-plugin依赖也不会改变任何东西......
有没有办法改变jasmine plugin runner?
答案 0 :(得分:1)
好的伙计们。
找到解决方案:
$(mySelector).get(0) == document.activeElement
run(function() { /* expect */ })
条件之后并且取决于您的waitsFor
条件,请不要忘记将代码块包裹在define(["jquery",
"modules/nonEmployers",
"modules/pages/activities"], function($, nonEmployers, activities) {
describe("activities test suite", function() {
var $form, $employeesDropDown, $companiesDropDown;
beforeEach(function() {
$form = affix('form[id=testForm]');
$employeesDropDown = $form.affix('select[id=employees]');
$employeesDropDown.affix('option[selected=selected]');
$employeesDropDown.affix('option[value=1]');
$companiesDropDown = $form.affix('select[id=companies]');
$companiesDropDown.affix('option');
spyOn(nonEmployers, "fetchCompanies").andCallFake(function(employeeId, callback) {
callback([{id: 42, name: "ACME"}, {id: 100, name: "OUI"}]);
});
});
it("should update the company dropdown", function() {
$(document).ready(function() {
activities.observeEmployees('#employees', '#companies');
$('#employees option[selected=selected]').removeAttr("selected");
$('#employees option[value=1]').attr("selected", "selected");
$('#employees').trigger('change');
waitsFor(function() {
var dropDown = $('#companies').html();
return dropDown.indexOf('ACME') > 0 && dropDown.indexOf('OUI') > 0;
}, 'DOM has never been updated', 500);
runs(function() {
var dropDown = $('#companies').html();
expect(dropDown).toContain('<option value="42">ACME</option>');
expect(dropDown).toContain('<option value="100">OUI</option>');
});
});
});
});
});
之内。最后,一切都应该好。
现在看看考试情况如何:
{{1}}
答案 1 :(得分:1)
以这种方式创建模块非常困难。我建议不要使用灯具而不是实际渲染。相反,使用分离的DOM元素来完成所有工作要容易得多。
想象一下,如果你的代码看起来更接近这个:
define([
'jquery',
'vendor/underscore',
'modules/non-employers',
'text!tpl/employeeOption.tpl'], function($, _, nonEmployers, employeeTemplate) {
return {
init: function() {
this.$companies = $('<select class="js-companies"></select>');
},
render: function(data) {
var template = _.template(employeeTemplate),
newContents = _.reduce(data, function(string,element) {
return string + template({
value: element.id,
display: element.name
});
}, "<option value='-1'>select a client...</option>\n");
this.$companies.empty().append(newContents);
return this;
});
observeEmployees: function(employeeDropDownSelector) {
$(employeeDropDownSelector).change(function() {
var selectedEmployeeId = $(employeeDropDownSelector + " option:selected").val();
if (selectedEmployeeId > 0) {
nonEmployers.fetchCompanies(selectedEmployeeId, function(data) {
this.render(data);
}
}
});
}
};
});
以上内容尚不完整。它只是让您了解解决问题的另一种方法。现在,您需要做的只是检查this.$companies
而不是夹具,您将完成。我认为主要的问题是你的功能不够简单。每个功能的关注应该非常具体。您的updateCompanies函数正在执行诸如创建模板,获取数据然后将其传递给无法监视的匿名函数,匿名函数迭代对象,然后更改一些已存在的DOM元素。听起来很糟糕。所有该功能应该是看一些预编译模板发送一个对象。模板应该使用{{each}}在对象上循环然后返回。然后你的函数清空并附加newContents并将其返回给自己,以便下一个函数可以选择它应该用它做什么。$ companies。或者,如果这个。$公司已经附加到页面上,则根本不需要做任何事情。