执行 Selenium 显式等待时 Katalon 中的 GroovyCastException

Question

我正在尝试在 Katalon（使用 Groovy）中执行显式等待。我有以下代码：

// wait on page change to "Dashboard"
    WebDriverWait dashboardChangeWait = new WebDriverWait(driver, 3)
    /* This is causing the following Exception : 
     *   - GroovyCastException : Attempt to cast 'true' with class 'java.lang.Boolean' to class
     *      'org.openqa.selenium.WebElement'
     * */
    WebElement element = dashboardChangeWait.until(
        ExpectedConditions.textToBe(By.cssSelector('.breadcrumb-item.active'), "DASHBOARD"))

这给了我 GroovyCastException。我知道 WebDriverWait.until 采用 Function（是的，JavaScript-like 编码！）参数，ExpectedConditions.textToBe returns a ExpectedCondition<Boolean> 和 until 的签名是 V org.openqa.selenium.support.ui.FluentWait.until(Function<Object, Object<V>> arg0) 。有没有办法在 Katalon 中执行这种类型的等待，从而避免这个问题？

Answer 1

你非常接近。 ExpectedConditions方法textToBe()定义如下：

public static ExpectedCondition<java.lang.Boolean> textToBe(By locator, java.lang.String value)

An expectation for checking WebElement with given locator has specific text

Parameters:
locator - used to find the element
value - used as expected text

Returns:
Boolean true when element has text value equal to @value

所以你只需要将 return 类型改为 boolean 而不是 WebElement 如下：

Boolean status = dashboardChangeWait.until(ExpectedConditions.textToBe(By.cssSelector('.breadcrumb-item.active'), "DASHBOARD"))

执行 Selenium 显式等待时 Katalon 中的 GroovyCastException

GroovyCastException in Katalon when performing Selenium explicit wait

selenium

selenium-webdriver

groovy

katalon-studio

webdriverwait