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我正在尝试在这里使用一张桌子，它把我的头煮得很脆。所以测试是，加载页面并确认“加载计划”按钮在那里。还断言表标题存在并包含预期的文本。这是完整且有效的。这是点击“加载计划”之前的 HTML</p> 

<table id="scheduleTable" class="audit_table">
    <thead>
    <tr>
            <th class="date-header red_grade">Kick Off(UTC)</th>
            <th class="narrow-header red_grade">RBallId</th>
            <th class="narrow-header red_grade">GSMId</th>
            <th class="narrow-header red_grade">WBId</th>
            <th class="country-header red_grade">Country</th>
            <th class="header red_grade" style="display:none">Sport</th>
            <th class="header red_grade" style="display:none">SportId</th>
            <th class="header red_grade">League</th>
            <th class="header red_grade ">Home</th>
            <th class="header red_grade">Away</th>
            <th class="header red_grade">Languages</th>
    </tr>
    </thead>
    <tbody>
    </tbody>
</table>

现在，当我单击 Load Schedule 按钮时，页面中会添加一个新的“tbody”元素，如下所示：

<tbody><tr class="odd">
        <td class="Kickoff">2013-09-02 14:30:00</td>
        <td class="RBallId">327097</td>
        <td class="GSMId">0</td>
        <td class="WBId">0</td>
        <td class="Country">South Africa-(82)</td>
        <td class="Sport" style="display:none">Soccer</td>
        <td class="SportId" style="display:none">1</td>
        <td class="League">Varsity Football Challenge</td>
        <td class="Home">University of the Western Cape - UWC (students)</td>
        <td class="Away">University of Cape Town - UCT (students)</td>
        <td class="Languages"></td>
</tr><tr class="even">
        <td class="Kickoff">2013-09-02 14:45:00</td>
        <td class="RBallId">338082</td>
        <td class="GSMId">0</td>
        <td class="WBId">0</td>
        <td class="Country">Friendly-(20)</td>
        <td class="Sport" style="display:none">Soccer</td>
        <td class="SportId" style="display:none">1</td>
        <td class="League">Friendly INT Women U19</td>
        <td class="Home">Greece U19</td>
        <td class="Away">Turkey U19</td>
        <td class="Languages"></td>
</tr><tr class="odd">
        <td class="Kickoff">2013-09-02 15:00:00</td>
        <td class="RBallId">336937</td>
        <td class="GSMId">1421234</td>
        <td class="WBId">0</td>
        <td class="Country">Estonia-(2)</td>
        <td class="Sport" style="display:none">Soccer</td>
        <td class="SportId" style="display:none">1</td>
        <td class="League">Meistriliiga</td>
        <td class="Home">Kalju</td>
        <td class="Away">Kuressaare</td>
        <td class="Languages"></td>
</tr><tr class="even">
        <td class="Kickoff">2013-09-02 15:00:00</td>
        <td class="RBallId">331340</td>
        <td class="GSMId">1571623</td>
        <td class="WBId">0</td>
        <td class="Country">Sweden-(48)</td>
        <td class="Sport" style="display:none">Soccer</td>
        <td class="SportId" style="display:none">1</td>
        <td class="League">U21 B-Playoffs</td>
        <td class="Home">Halmstad U21</td>
        <td class="Away">Kalmar U21</td>
        <td class="Languages"></td>
</tr><tr class="odd">
        <td class="Kickoff">2013-09-02 15:00:00</td>
        <td class="RBallId">331348</td>
        <td class="GSMId">1571636</td>
        <td class="WBId">0</td>
        <td class="Country">Sweden-(48)</td>
        <td class="Sport" style="display:none">Soccer</td>
        <td class="SportId" style="display:none">1</td>
        <td class="League">U21 B-Playoffs</td>
        <td class="Home">Åtvidaberg U21</td>
        <td class="Away">Gefle U21</td>
        <td class="Languages"></td>
</tr><tr class="even">

等等等等。

我想要做的是在单击按钮之前检查是否唯一可见的是标题，然后当我单击“加载计划”按钮时，我想获取行数并断言它> 0。

我已经尝试了这里和谷歌的几个例子，但并没有很高兴让它们以我希望的方式工作。

我做了下面的另一种方法，但失败了：

    private boolean isElementPresent(WebDriverBackedSelenium webBrowser, String xpath) {
    try {
        driver.getWrappedDriver().findElement(By.xpath("//*[@id=\"scheduleTable\"]/tbody/tr[1]"));
        return true;

    } catch (Exception e) {
        return false;
    }
}

像往常一样，我很感激花时间帮助我解决这个问题

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1 回答 1

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对于上述情况，您应该结合使用WebDriverWaitfor explicit wait 和ExpectedConditionsclass for out of the box 等待条件。此外，我建议避免xpath使用 selenium 社区中已详细记录的原因。这是一个示例代码，

WebDriverWait wait = new WebDriverWait(driver, 300);
//check visibility of only headers
By header_locator = By.cssSelector("table#scheduleTable>thead>tr>th");
wait.until(ExpectedConditions.visibilityOfElementLocated(header_locator));
//make sure schedules are not present
By schedule_locator = By.cssSelector("table#scheduleTable>tbody>tr");
wait.until(ExpectedConditions.invisibilityOfElementLocated(schedule_locator));

//now click on Load Schedule Button and make sure schedule appear

wait.until(ExpectedConditions.visibilityOfElementLocated(schedule_locator));

一些有用的链接

https://code.google.com/p/selenium/w/list

http://docs.seleniumhq.org/docs/03_webdriver.jsp

于 2013-09-02T18:55:11.227 回答