WebDriver打印錯誤的條件語句

Question

我正在學習WebDriver並試圖查看demoaut網站上的鏈接。 循環中的代碼應該通過其標題識別“正在構建”頁面，打印出第一行，然后返回到基本URL。 但這不會因某種原因發生。 它獲得的第一個“正在建設中”鏈接（特色度假目的地）不被識別，提示打印錯誤的行，然后由於NoSuchElementException而不是返回它崩潰，因為它正在查找錯誤的鏈接頁。 為什么會這樣？ 為什么它不根據“正在建設中”頁面的標題行事？

import java.util.List;

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.*;
import org.openqa.selenium.firefox.FirefoxDriver;

public class CheckLinks {

public static void main(String[] args) {
    String baseUrl = "http://newtours.demoaut.com/";
    System.setProperty("webdriver.gecko.driver", "C:\\Workspace_e\\geckodriver.exe");
    WebDriver driver = new FirefoxDriver();
    String underConsTitle = "Under Construction: Mercury Tours";
    driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

    driver.get(baseUrl);
    List<WebElement> linkElements = driver.findElements(By.tagName("a"));
    String[] linkTexts = new String[linkElements.size()];
    int i = 0;

    //extract the link texts of each link element
    for (WebElement e : linkElements) {
        linkTexts[i] = e.getText();
        i++;
    }

    //test each link
    for (String t : linkTexts) {
        driver.findElement(By.linkText(t)).click();
        if (driver.getTitle().equals(underConsTitle)) {
            System.out.println("\"" + t + "\""
                    + " is under construction.");
        } else {
            System.out.println("\"" + t + "\""
                    + " is working.");
        }
        driver.navigate().back();
    }
    driver.quit();
}

}

Answer 1

單擊第一個鏈接后，即使您返回到頁面， linkTexts所有引用linkTexts將變為陳舊... 您需要做的是將所有href存儲在List中，然后導航到每個href並檢查頁面的標題。

我會這樣寫的......

public class CheckLinks
{
    public static void main(String[] args) throws UnsupportedFlavorException, IOException
    {
        String firefoxDriverPath = "C:\\Users\\Jeff\\Desktop\\branches\\Selenium\\lib\\geckodriver-v0.11.1-win32\\geckodriver.exe";
        System.setProperty("webdriver.gecko.driver", firefoxDriverPath);
        WebDriver driver = new FirefoxDriver();
        driver.manage().window().maximize();

        String baseUrl = "http://newtours.demoaut.com/";
        driver.get(baseUrl);
        List<WebElement> links = driver.findElements(By.tagName("a"));
        List<String> hrefs = new ArrayList<>();
        for (WebElement link : links)
        {
            hrefs.add(link.getAttribute("href"));
        }
        System.out.println(hrefs.size());
        String underConsTitle = "Under Construction: Mercury Tours";
        for (String href : hrefs)
        {
            driver.get(href);
            System.out.print("\"" + href + "\"");
            if (driver.getTitle().equals(underConsTitle))
            {
                System.out.println(" is under construction.");
            }
            else
            {
                System.out.println(" is working.");
            }
        }
        driver.close();
        driver.quit();
    }
}

Answer 2

您的代碼在我的Chrome瀏覽器中正常運行。 你的問題可能是webdriver的速度。 您可以使用WebDriverWait，它是對特定元素的顯式等待。

嘗試下面的修改代碼

for (String t : linkTexts) {
        WebDriverWait wait = new WebDriverWait(driver, 60);
        wait.until(ExpectedConditions.elementToBeClickable(driver.findElement(By.linkText(t))));
        driver.findElement(By.linkText(t)).click();
        if (driver.getTitle().equals(underConsTitle)) {
            System.out.println("\"" + t + "\""
                    + " is under construction.");
        } else {
            System.out.println("\"" + t + "\""
                    + " is working.");
        }
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e1) {         
            e1.printStackTrace();
        }
        driver.navigate().back();
    }

我可以如下所示

"Home" is working.
"Flights" is working.
"Hotels" is under construction.
"Car Rentals" is under construction.
"Cruises" is working.
"Destinations" is under construction.
"Vacations" is under construction.
"SIGN-ON" is working.
"REGISTER" is working.
"SUPPORT" is under construction.
"CONTACT" is under construction.
"your destination" is under construction.
"featured vacation destinations" is under construction.
"Register here" is working.
"Business Travel @ About.com" is working.
"Salon Travel" is working.

Answer 3

我沒有發現你的邏輯有什么問題。事實上我復制了你的代碼，只是用IE驅動程序替換了firefox驅動程序，它按預期工作.Below是我運行代碼的控制台輸出：

> Home" is working. "Flights" is working. "Hotels" is under
> construction. "Car Rentals" is under construction. "Cruises" is
> working. "Destinations" is under construction. "Vacations" is under
> construction. "SIGN-ON" is working. "REGISTER" is working. "SUPPORT"
> is under construction. "CONTACT" is under construction. "your
> destination" is under construction. "featured vacation destinations"
> is under construction. "Register here" is working. "Business Travel @
> About.com" is working.