茉莉花-如何设置describe块的超时时间？

Question

I have a class which is poorly written, and get initialized only after a short timeout. (It's dependent in a 3rd party loading, so it's pointless to offer modifying the code. thank you) Nevertheless, it needs to be unit tested.

What I have right now is the following structure:

describe('my tests', function() {

    var timeoutPromise = function () {
        /... return promise .../   
    } 

    it('test1', function (done) {
        timeoutPromise.then(function() {
            expect(...);
            done();
        });
    });

    it('test2', function (done) {
        timeoutPromise.then(function() {
            expect(...);
            done();
        });
    });

});

That way I make sure all tests run after a few ms timeout. Is there is way to make the whole describe block run only after the timeout? Something like

describe('my tests', function(done) {
      it(...);
      it(...);
      done();
}

Answer 1

There's no describe() level done callback. From the Jasmine 2.5 docs :

Calls to beforeAll , afterAll , beforeEach , afterEach , and it can take an optional single argument that should be called when the async work is complete.

However, you can do one time initialization in a beforeEach() on the same level as the it() blocks they belong to.

The following code will fullfill your requirements. It is inline commented:

describe('your tests', function() {

    var timeoutPromise = new Promise(function(resolve, reject){
        setTimeout(resolve, 4000);
    });

    // execute timeoutPromise and wait for it to resolve ...
    beforeEach(function(done) {
        timeoutPromise.then(function() {
            // timeout resolved, test initialization in this block done
            done();
        });
    });

    // for all following it()s the beforeEach() needs to complete 

    it('test1', function () {
        expect(...);
    });

    it('test2', function () {
        expect(...);
    });

    // ...

});