如何在量角器中等待，直到元素启用 [英] How to wait in protractor till the element is enabled

问题描述

尝试单击按钮时，量角器失败。最初，该按钮将处于禁用状态（某些时候它将被启用），并且量角器认为按钮已准备好并单击按钮并失败。

Protractor is failing when trying to click a button. Initially the button will be in disabled status (after sometime it will be enabled) and protractor thinks that the button is ready and clicking on the button and failing.

所以我希望量角器脚本等到按钮启用。我在下面尝试过，但它没有用。有人可以发布完整的代码来等待元素被启用吗？

So i want the protractor script to wait till the button is enabled. I have tried below, but it didn't work. Can someone please post the complete code to wait for the element to be enabled?

expect(browser.wait(function(){return browser.driver.isElementPresent(by.id('paynow-info-btn'))}, 10000));

推荐答案

有一个非常合适的预期条件 - elementToBeClickable - 它会等待一个元素可见并启用：

There is a very much suitable Expected Condition - elementToBeClickable - it would wait for an element to be both visible and enabled:

var elm = element(by.id('paynow-info-btn'));
var EC = protractor.ExpectedConditions;

browser.wait(EC.elementToBeClickable(elm), 5000);
elm.click();

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