Selenium WebDriver C＃等待任何文本

Question

如何显式等待IWebElement .Text属性中存在任何文本

/// <summary>
/// Work
/// </summary>
/// <param name="by"></param>
/// <returns></returns>
public IWebElement WaitUntilAnyTextIsPresentInElementValue(By by)
{
    IWebElement element = _driver.FindElement(by);

    WebDriverWait wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(30));
    wait.Until(d => d.FindElement(by).GetAttribute("value") != string.Empty);

    return element;
}

/// <summary>
/// Don't Work
/// </summary>
/// <param name="by"></param>
/// <returns></returns>
public IWebElement WaitUntilAnyTextIsPresentInElementText(By by)
{
    IWebElement element = _driver.FindElement(by);

    WebDriverWait wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(30));
    wait.Until(d => d.FindElement(by).Text != string.Empty);

    return element;
}

第一种方法工作正常，第二种方法不等......

IWebElement dsfTest = WaitUntilAnyTextIsPresentInElementValue(By.Id("dsfTest"));

//It wait 30 seconds, if text is found try to Assert, if not throw TimeOutException as expected...
Assert.AreEqual("Test", dsfTest.Text);


IWebElement dsfTest = WaitUntilAnyTextIsPresentInElementText(By.Id("dsfTest"));

//Try to assert without wait (sometimes it will work)... (i know that it doesn't wait because it don't throw TimeOutException and Assert fail because text still empty)
Assert.AreEqual("Test", dsfTest.Text);

............................................... .................................

这一项工作，但需要传递一个特定的文字来观察......

public IWebElement WaitUntilTextIsPresentInElementText(By by, string text)
{
    IWebElement element = _driver.FindElement(by);

    WebDriverWait wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(30));
    wait.Until(ExpectedConditions.TextToBePresentInElement(element, text));

    return element;
}