How to combine implicit and explicit timeouts in Selenium?

问题

I am using Selenium ChromeDriver with an implicit timeout:

_driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(5);

In one of my tests I want to override this with an explicit timeout. Before reading a property I explicitely wait for the element to be found:

WebDriverWait wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(120));
wait.Until(d => d.FindElement(By.CssSelector("div.example")));

I would expect this to take 120s to try to find the element, but it times out after just 5 seconds.

回答1:

As per the documentation of Explicit and Implicit Waits it is clearly mentioned that:

Do not mix implicit and explicit waits. Doing so can cause unpredictable wait times. For example setting an implicit wait of 10 seconds and an explicit wait of 15 seconds, could cause a timeout to occur after 20 seconds.

Still if you have implicit timeout defined as:

_driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(5);

Before inducing explicit wait for the element to be found you need to remove the implicit timeout as follows:

_driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(0);
WebDriverWait wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(120));
wait.Until(d => d.FindElement(By.CssSelector("div.example")));

Once you are done with the explicit wait, you can re-configure back the implicit timeout again as:

_driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(0);
WebDriverWait wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(120));
wait.Until(d => d.FindElement(By.CssSelector("div.example")));
//perform your action with the element
_driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(5);

来源：https://stackoverflow.com/questions/52706693/how-to-combine-implicit-and-explicit-timeouts-in-selenium

标签

selenium

selenium-webdriver

webdriverwait

implicitwait