如何在单元测试中访问Ember中的速记助手？
如何在单元测试中访问Ember中的速记助手？
提问于 2015-06-17 10:37:44
如何在单元测试中访问速记助手以进行测试？
示例：
/助理员/全地址
import Ember from 'ember';
export default Ember.Helper.helper(function(params, hash) {
var fullAddress = hash.line1 === "" ? "" : hash.line1 + ", ";
fullAddress += hash.town === "" ? "" : hash.town + ", " ;
fullAddress += hash.postCode === "" ? "" : hash.postCode + ", ";
if (fullAddress.length > 2) {
fullAddress = fullAddress.replace(/,(\s+)?$/, "");
}
return fullAddress;
});在addresses.hbs中使用速记助手
<h4>Addresses</h4>
{{#each model.addresses key="id" as |address|}}
<p>
{{full-address line1=address.line1 town=address.town postCode=address.postCode}}
</p>
{{/each}}全地址测试
import { fullAddress } from '../../../helpers/full-address';
import { module, test } from 'qunit';
module('Unit | Helper | full address');
// Replace this with your real tests.
test('it works', function(assert) {
var line1 = "123 Test Street";
var town = "My Town";
var postCode = "TE5 5ST";
var expected = line1 + ", " + town + ", " + postCode;
var result = ??? // Call helper here
assert.equal(result, expected);
});我如何用散列的这三个变量调用速记助手？
回答 1
Stack Overflow用户
回答已采纳
发布于 2015-06-17 13:18:35
您需要稍微修改您的助手文件：
import Ember from 'ember';
export function fullAddress(params, hash) {
let retValue = hash.line1 === "" ? "" : hash.line1 + ", ";
retValue += hash.town === "" ? "" : hash.town + ", " ;
retValue += hash.postCode === "" ? "" : hash.postCode + ", ";
if (retValue.length > 2) {
retValue = retValue.replace(/,(\s+)?$/, "");
}
return retValue;
}
export default Ember.Helper.helper(fullAddress);然后，你可以写你的测试：
import { fullAddress } from '../../../helpers/full-address';
import { module, test } from 'qunit';
module('Unit | Helper | full address');
test('it works', function(assert) {
var line1 = "123 Test Street";
var town = "My Town";
var postCode = "TE5 5ST";
var expected = line1 + ", " + town + ", " + postCode;
var result = fullAddress(null, {
line1: line1,
town: town,
postCode: postCode
}); // Call helper here
assert.equal(result, expected);
});如果您只运行这个测试模块，您将得到：
在这种情况下，fullAddress的返回值是：123 Test Street, My Town, TE5 5ST，它与期望值匹配。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/30889106
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