测试方法requireJS茉莉异步 [英] Testing requireJS methods async with Jasmine
问题描述
我想测试需要使用一个模块的茉莉花功能和 requirejs 。
这是一个虚拟的code:
I am trying to test a function that requires a module using jasmine and requirejs. Here is a dummy code:
define("testModule", function() {
return 123;
});
var test = function() {
require(['testModule'], function(testModule) {
return testModule + 1;
});
}
describe("Async requirejs test", function() {
it("should works", function() {
expect(test()).toBe(124);
});
});
有失败,因为它是一个异步方法。我该如何进行测试呢?
It fails, because it is an async method. How can I perform a test with it?
的注:我不想改变我的code,只是我的测试描述
函数的
推荐答案
有关异步的东西检查测试运行()
,等待()
和 waitsFor()
:
For testing of an asynchronous stuff check runs()
, waits()
and waitsFor()
:
https://github.com/pivotal/jasmine/wiki/Asynchronous-specs
虽然这种方式看起来有点丑陋的我,所以你也可以考虑以下选项。
Though this way looks a bit ugly as for me, therefore you could also consider following options.
1 我建议你尝试 jasmine.async ,可以让你编写异步测试案例是这样的:
1. I'd recommend you to try jasmine.async that allows you to write asynchronous test cases in this way:
// Run an async expectation
async.it("did stuff", function(done) {
// Simulate async code:
setTimeout(function() {
expect(1).toBe(1);
// All async stuff done, and spec asserted
done();
});
});
2 您还可以运行在您的测试要求
的回调:
2. Also you can run your tests inside require
's callback:
require([
'testModule',
'anotherTestModule'
], function(testModule, anotherTestModule) {
describe('My Great Modules', function() {
describe('testModule', function() {
it('should be defined', function() {
expect(testModule).toBeDefined();
});
});
describe('anotherTestModule', function() {
it('should be defined', function() {
expect(anoterTestModule).toBeDefined();
});
});
});
});
3 还有一点就是我猜测,这code未工作作为你希望:
3. Another point is I guess that this code is not working as you're expecting:
var test = function() {
require(['testModule'], function(testModule) {
return testModule + 1;
});
};
由于如果调用测试()
,将不会返回 testModule + 1
。
Because if you call test()
, it won't return you testModule + 1
.
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