[英]Mocha tests for asynchronous functions
I'm writing a node wrapper to interact with an external api and am having a difficult time testing the asynchronous createJob
method. 我正在编写一个节点包装程序以与外部api交互,并且在测试异步createJob
方法时遇到了困难。 Below is the test case code: 下面是测试用例代码:
api_key = "test_0dc8d51e0acffcb1880e0f19c79b2f5b0cc"
lob = require('../src/lob')(api_key)
should = require("should")
chai = require("chai")
data =
name: "test name"
to: "Bob"
from: "Alice"
object1: "foo"
object2: "bar"
describe "Job", ->
@timeout(50000)
describe "create", ->
it "should create a job with address_id", (done) ->
lob.jobs.createJob data, (new_job) ->
new_job.should.not.be.empty
new_job['name'].should.equal(data['name'])
done()
Edit 编辑
The above code resolves the issue 上面的代码解决了这个问题
(Answer in coffeescript. If you'd like to convert coffee to js use http://coffeescript.org/ , then the Try CoffeeScript tab.) (coffeescript中的答案。如果要将咖啡转换为js,请使用http://coffeescript.org/ ,然后使用Try CoffeeScript选项卡。)
If you're testing asynch code you'll need to use the done
pattern: 如果要测试异步代码,则需要使用done
模式:
describe "User", ->
describe "#save()", ->
it "should save without error", (done) ->
user = new User("Luna")
user.save done
http://visionmedia.github.io/mocha/ under "Asynchronous code". http://visionmedia.github.io/mocha/在“异步代码”下。 Looks like createJob is returning true because the test is zipping through the code to send the post etc. and saying "yep, I sent all that stuff like you asked!". 看起来createJob返回的是true,因为测试正在压缩代码以发送帖子等,然后说“是的,我按照您的要求发送了所有内容!”。
I'd recommend Martin Fowler's article on testing asynch js code with mocha: http://martinfowler.com/articles/asyncJS.html . 我建议马丁·福勒(Martin Fowler)的文章关于使用Mocha测试异步js代码: http : //martinfowler.com/articles/asyncJS.html 。
I've got a chunk of code that tests retrieval of a user from the database (using sinon for stubbing). 我有一段代码测试从数据库中检索用户的代码(使用sinon进行存根)。 The real code connects to the db then calls the onSuccess with the user's configuration: onSuccess(config)
实际代码连接到数据库,然后使用用户的配置调用onSuccess: onSuccess(config)
describe 'Config', ->
orgId = 'a'
errorHandler = ((msg) -> (throw msg))
beforeEach ->
readConfig = sinon.stub(sdl , 'getConfig')
readConfig.callsArgOnWithAsync(2, configSource, JSON.parse(jsonConfig))
afterEach ->
configSource.getConfig.restore()
... later ...稍后
configSource.getConfig('520bc323de4b6f7845543288', errorHandler, (config) ->
config.should.not.be.null
config.should.have.property('preferences')
done()
)
Don't consider this like an answer to the op but a bonus for the one marked as correct. 不要认为这是对操作的回答,而是对标记为正确操作的人的奖励。
Just to complete @jcollum answer here's the Javascript version of him code: 只是为了完成@jcollum回答,这是他代码的Javascript版本:
describe('User', function(){
describe('#save()', function(){
it("should save without error", function(done){
var _user = new User("Moon");
_user.save;
done();
});
});
});
It's pretty evident but maybe some newbies would need this addendum. 这很明显,但也许有些新手需要此附录。
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