Javascript Chai承诺不会提取文本值
我有一个简单的页面对象方法:Javascript Chai承诺不会提取文本值,javascript,testing,jestjs,chai,Javascript,Testing,Jestjs,Chai,我有一个简单的页面对象方法: page.prototype.copyLink = function() { this.visit("https://myWebsite.com"); this.login(); // once logged in, presented with list of elements return { firstCampaign: this.find('#el-1').getText(), //returns a promise second
page.prototype.copyLink = function() {
this.visit("https://myWebsite.com");
this.login(); // once logged in, presented with list of elements
return {
firstCampaign: this.find('#el-1').getText(), //returns a promise
secondCampaign: this.find('#el-2).getText() // returns a promise
}
}
module.exports = page;
使用承诺的Jest
和chai,我测试每个#el
中的文本是否相同:
var page = require("./page");
it("Export link icon should link to export html page", function(){
var copyLink = page.copyLink();
return copyLink.firstCampaign.should.eventually.equal(copyLink.secondCampaign);
});
由于某些原因,chai成功地从firstCampaign
中提取了文本,但没有从secondCampaign
中提取文本,因此出现以下错误:
AssertionError: expected '##TEST STRING##' to equal { Object (flow_, stack_, ...) }
at getBasePromise.then.then.newArgs (node_modules/chai-as-promised/lib/chai-as-promised.js:302:22)
at ManagedPromise.invokeCallback_ (node_modules/selenium-webdriver/lib/promise.js:1384:14)
at TaskQueue.execute_ (node_modules/selenium-webdriver/lib/promise.js:3092:14)
at TaskQueue.executeNext_ (node_modules/selenium-webdriver/lib/promise.js:3075:27)
at asyncRun (node_modules/selenium-webdriver/lib/promise.js:2935:27)
at node_modules/selenium-webdriver/lib/promise.js:676:7
at <anonymous>
at process._tickCallback (internal/process/next_tick.js:188:7)
AssertionError:应为“##测试字符串##”等于{Object(flow,stack,…)}
在getBasePromise.then.then.newArgs(node_modules/chai as promised/lib/chai as promised.js:302:22)
位于ManagedPromise.invokeCallback(node_modules/selenium webdriver/lib/promise.js:1384:14)
在TaskQueue.execute(node_modules/selenium webdriver/lib/promise.js:3092:14)
在TaskQueue.executeNext(node_modules/selenium webdriver/lib/promise.js:3075:27)
异步运行时(node_modules/selenium webdriver/lib/promise.js:2935:27)
在节点_modules/selenium webdriver/lib/promise.js:676:7
在
在进程中。_tick回调(内部/process/next_tick.js:188:7)
为什么chai不从第二个承诺中提取文本?您的代码只等待第一个承诺,然后再进行相等的比较
你需要等待执行命令
您的代码只等待第一个承诺,然后再进行相等的比较
你需要等待执行命令
var copyLink = page.copyLink();
var actual;
return Promise.all([copyLink.firstCampaign, copyLink.secondCampaign]).then(results => results[0].should.equal(results[1])).should.be.fulfilled;