Selenium JavascriptExecutor计算

Question

我试着在JavaScriptExecutor上做一个例子。

测试网站是：http://www.anaesthetist.com/mnm/javascript/calc.htm

测试场景是：3 + 9 = 12（加法）

我写下面的代码，但它没有用。我调试代码，我在页​​面上看到12作为结果，但在断言点我从.getText（）方法获得空值。

这是我的代码：

public class CalculatorExampleTest {
static WebDriver driver;
private static String url = "http://www.anaesthetist.com/mnm/javascript/calc.htm";

//Setup Driver
@BeforeClass
public static void setupTest() {
    driver = new FirefoxDriver();
    driver.navigate().to(url);
    driver.manage().window().maximize();
}

@Test
public void calculatorJavaScriptTest() {
    //Declare a Webdriver Wait
    WebDriverWait wait = new WebDriverWait(driver, 10);

    //1-) Click "9"
    driver.findElement(By.cssSelector("input[type='button'][onclick='AddDigit(\\'9\\')']")).click();

    //2-) Click "+"
    driver.findElement(By.cssSelector("input[type='button'][onclick='Operate(\\'+\\')']")).click();

    //3-) Click "3"
    driver.findElement(By.cssSelector("input[type='button'][onclick='AddDigit(\\'3\\')']")).click();

    //4-) Declare JavaScriptExecutor and call "Calculate()" function
    JavascriptExecutor js =(JavascriptExecutor)driver;
    js.executeScript("Calculate();");

    //driver.findElement(By.cssSelector("input[type='button'][onclick='Calculate()']")).click();

    //5-) Check result is 12?
    //Wrapped Anonymous Class (Synchronization)
    wait.until(textDisplayed(By.cssSelector("input[name='Display']:nth-child(1)"),"12"));

    WebElement result = driver.findElement(By.cssSelector("input[name='Display']:nth-child(1)"));
    assertThat(result.getText(), is("12"));

}

//Wrapped Anonymous Class
private ExpectedCondition<Boolean> textDisplayed (final By elementFindBy, final String text){
    return new ExpectedCondition<Boolean>() {
        @Override
        public Boolean apply(WebDriver webDriver) {
            return webDriver.findElement(elementFindBy).getText().contains(text);
        }
    };
}

//Close Driver
@AfterClass
public static void quitDriver() {
    driver.quit();
}

}

Answer 1

由于这是input元素，因此您需要获取value属性值而不是文本：

WebElement result = driver.findElement(By.cssSelector("input[name=Display]"));
assertThat(result.getAttribute("value"), is("12"));