转自:https://www.cnblogs.com/moonpool/p/5668571.html
显式等待可以使用selenium预置的判断方法,也可以使用自定义的方法。
1 package com.test.elementwait; 2 3 import org.openqa.selenium.By; 4 import org.openqa.selenium.WebDriver; 5 import org.openqa.selenium.firefox.FirefoxDriver; 6 import org.openqa.selenium.support.ui.ExpectedCondition; 7 import org.openqa.selenium.support.ui.ExpectedConditions; 8 import org.openqa.selenium.support.ui.WebDriverWait; 9 10 public class ExplicitWait { 11 12 public static void main(String[] args) { 13 WebDriver driver = new FirefoxDriver(); 14 driver.get("http://www.baidu.com"); 15 driver.manage().window().maximize(); 16 17 //标题是不是“百度一下,你就知道” 18 new WebDriverWait(driver,5).until(ExpectedConditions.titleIs("百度一下,你就知道")); 19 //标题是不是包含“百度一下” 20 new WebDriverWait(driver,5).until(ExpectedConditions.titleContains("百度一下")); 21 //判断该元素是否被加载在DOM中,并不代表该元素一定可见 22 new WebDriverWait(driver,5).until(ExpectedConditions.presenceOfElementLocated(By.xpath("//*[@id='kw']"))); 23 //判断元素(定位后)是否可见 24 new WebDriverWait(driver,5).until(ExpectedConditions.visibilityOf(driver.findElement(By.xpath("//*[@id='kw']")))); 25 //判断元素是否可见(非隐藏,并且元素的宽和高都不等以0) 26 new WebDriverWait(driver,5).until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//*[@id='kw']"))); 27 //只要存在一个就是true 28 ExpectedConditions.presenceOfAllElementsLocatedBy(By.xpath("//*[@id='kw']")); 29 //元素中的text是否包含语气的字符串 30 ExpectedConditions.textToBePresentInElementLocated(By.xpath("//*[@id='kw']"), "百度一下"); 31 //元素的value属性中是否包含语气的字符串 32 ExpectedConditions.textToBePresentInElementValue(By.xpath("//*[@id='kw']"), "***"); 33 //判断该表单是否可以切过去,可以就切过去并返回true,否则放回false 34 ExpectedConditions.frameToBeAvailableAndSwitchToIt(By.id("**")); 35 //判断某个元素是否不存在于DOM或不可见 36 ExpectedConditions.invisibilityOfElementLocated(By.xpath("//*[@id='kw']")); 37 //判断元素是否可以点击 38 ExpectedConditions.elementToBeClickable(By.xpath("//*[@id='kw']")); 39 //等到一个元素从DOM中移除 40 ExpectedConditions.stalenessOf(driver.findElement(By.xpath("//*[@id='kw']"))); 41 //判断某个元素是否被选中,一般用在下拉列表 42 ExpectedConditions.elementToBeSelected(By.xpath("//*[@id='kw']")); 43 //判断某个元素的选中状态是否符合预期 44 ExpectedConditions.elementSelectionStateToBe(By.xpath("//*[@id='kw']"), true); 45 //判断某个元素(已定位)的选中状态是否符合预期 46 ExpectedConditions.elementSelectionStateToBe(driver.findElement(By.xpath("//*[@id='kw']")), false); 47 //判断页面中是否存在alert 48 new WebDriverWait(driver,5).until(ExpectedConditions.alertIsPresent()); 49 //--------------------自定义判断条件----------------------------- 50 WebDriverWait wait = new WebDriverWait(driver, 3); 51 wait.until(new ExpectedCondition<Boolean>() { 52 public Boolean apply(WebDriver driver) { 53 return !driver.findElement(By.xpath("//*[@id='kw']")).getAttribute("class").contains("x-form-invalid-field"); 54 } 55 }); 56 57 } 58 59 }
注:
1.除了以上内容,selenium还提供了很多预置的判断方法。
2.这些判断方法,在超出时间限制时就会抛出异常。