问题描述
在这种情况下，我想在Mocha测试中嵌套it()测试用例.我确定这是错误的，并且我看不到任何建议可以做我正在做的事情，但是目前我还真的不知道有什么更好的方法-
I have this case where I think I want to have nested it() test cases in a Mocha test. I am sure this is wrong, and I don't see any recommendations to do what I am doing, but I don't really know of a better way at the moment -
基本上，我有一个父"测试，在父测试中有一个forEach循环，其中包含所有子"测试:
basically, I have a "parent" test, and inside the parent test there's a forEach loop with all the "child" tests:
it('[test] enrichment', function (done) {
var self = this;
async.each(self.tests, function (json, cb) {
//it('[test] ' + path.basename(json), function (done) {
var jsonDataForEnrichment = require(json);
jsonDataForEnrichment.customer.accountnum = "8497404620452729";
jsonDataForEnrichment.customer.data.accountnum = "8497404620452729";
var options = {
url: self.serverURL + ':' + self.serverPort + '/event',
json: true,
body: jsonDataForEnrichment,
method: 'POST'
};
request(options,function (err, response, body) {
if (err) {
return cb(err);
}
assert.equal(response.statusCode, 201, "Error: Response Code");
cb(null);
});
//});
}, function complete(err) {
done(err)
});
});
如您所见，注释了两行-我想将它们包括在内，以便我可以轻松地看到每个独立测试的结果，但是然后我遇到了尴尬的情况，即在回调的同时触发测试的回调用于async.each.
as you can see, two separate lines are commented out - I want to include them so that I can easily see the results of each separate test, but then I have this awkward situation of firing the callback for the test alongside the callback for async.each.
有没有人以前见过这种情况，并且知道一个好的解决方案，使测试人员可以轻松地循环查看每个测试的结果?
Has anyone seen this time of situation before and know of a good solution where the tester can easily see the results of each test in a loop?
推荐答案
不要嵌套it调用.同步调用它们.
Don't nest it calls. Call them synchronously.
嵌套it调用在Mocha中永远无法实现. it调用也不是异步执行的. ( test 可以是异步的，但是您不能异步调用 it.)这是一个简单的测试:
Nested it calls are never okay in Mocha. Nor are it calls performed asynchronously. (The test can be asynchronous, but you cannot call it asynchronously.) Here's a simple test:
describe("level 1", function () {
describe("first level 2", function () {
it("foo", function () {
console.log("foo");
it("bar", function () {
console.log("bar");
});
});
setTimeout(function () {
it("created async", function () {
console.log("the asyncly created one");
});
}, 500);
});
describe("second level 2", function () {
// Give time to the setTimeout above to trigger.
it("delayed", function (done) {
setTimeout(done, 1000);
});
});
});
如果运行此命令，则不会得到嵌套测试bar，异步创建的测试(delayed)也将被忽略.
If you run this you won't get the nested test bar will be ignored and the test created asynchronously (delayed) will also be ignored.
Mocha对于此类调用没有定义的语义.当我在撰写本文时使用最新版本的Mocha(2.3.3)进行测试时，它只是忽略了它们.我记得较早版本的Mocha可以识别这些测试，但是会将它们附加到错误的describe块中.
Mocha has no defined semantics for these kinds of calls. When I ran my test with the latest version of Mocha at the time of writing (2.3.3), it just ignored them. I recall that an earlier version of Mocha would have recognized the tests but would have attached them to the wrong describe block.
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