如何等待量角器端的http请求响应 [英] How to wait for the response of http request from Protractor side

问题描述

我使用了答案 https://stackoverflow.com/a/25149395/3330910 中的代码.

I used code from the answer https://stackoverflow.com/a/25149395/3330910.

接下来我做:

it('HTTP request', function () {
    var BackRequest = require('../helper/backRequest');
    var request = new BackRequest();

    page.visitPage();

    request.setBaseUrl('http://localhost:8081');

    // Step #1
    request.get('/api/v1/one')
        .then(function(result){
        expect(result.statusCode).toBe(100); // An error #1
        expect(result.bodyString).toContain('Some text');
    });

    // Step #2
    expect(1).toBe(2); // an error #2
});

我按顺序得到错误:

• 错误 #2
• 错误 #1

如何强制量角器等待第 1 步，然后执行第 2 步.

How can I force the protractor to wait for Step #1 and then do the step #2.

目前我唯一能做的就是链接 then() 函数:

For now only I can do is to chain then() functions:

request.get('/api/v1/one')
    .then(function(result){
        expect(result.statusCode).toBe(100); // An error #1
        expect(result.bodyString).toContain('Some text')
    .then(function(result){
        expect(1).toBe(2);
        }); 

更新

所以，它以下一个方法结束:

So, it ends up with the next approach:

describe('Scenarios', function () {

    beforeEach(function () {
        page.visitPage();
    });

    var chain = function () {
        var defer = protractor.promise.defer();
        defer.fulfill(true);
        return defer.promise;
    };

    it('HTTP request', function () {
        var BackRequest = require('../helper/backRequest');
        var request = new BackRequest();
        request.setBaseUrl('http://localhost:8081');

        chain()
            .then(function () {
                // Save data
            })

            .then(function () {
                request.get('/api/v1/one')
                    .then(function (result) {
                        expect(result.statusCode).toBe(200);
                        expect(result.bodyString).toContain('text');
                    });
            })

            .then(function () {
                // Change and Save again
            })

            .then(function () {
                request.get('/api/v1/one')
                    .then(function (result) {
                        expect(result.statusCode).toBe(200);
                        expect(result.bodyString).toContain('new text');
                        expect(result.bodyString).not.toContain('text');
                    });
            });
    });

});

感谢 Leo Gallucci 的帮助.

推荐答案

第 2 步立即得到解决，因为没有什么可等待的，没有 webdriver 承诺，您只是将绝对数字与 expect(1).toBe(2);

Step #2 gets resolved immediately because there is nothing to wait for, there are no webdriver promises there you're simply comparing absolute numbers with expect(1).toBe(2);

您可以像以前那样坚持使用链接 then()，或者我更喜欢单独的 it() 块:

You can stick with chaining then() as you did or the way I prefer is separate it() blocks:

it('HTTP request', function () {
    // Step #1 code ...
});

it('keeps testing other things in this step #2', function () {
    expect(1).toBe(2);
});

顺便说一句，我很高兴你发现我的其他 回答！

BTW I'm glad you found useful my other answer!

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