顯式等待能夠使用selenium預置的判斷方法,也能夠使用自定義的方法。app
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 //標題是否是「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 //標題是否是包含「百度一下」 20 new WebDriverWait(driver,5).until(ExpectedConditions.titleContains("百度一下")); 21 //判斷該元素是否被加載在DOM中,並不表明該元素必定可見 22 new WebDriverWait(driver,5).until(ExpectedConditions.presenceOfElementLocated(By.xpath("//*[@id='kw']"))); 23 //判斷元素(定位後)是否可見 24 new WebDriverWait(driver,5).until(ExpectedConditions.visibilityOf(driver.findElement(By.xpath("//*[@id='kw']")))); 25 //判斷元素是否可見(非隱藏,而且元素的寬和高都不等以0) 26 new WebDriverWait(driver,5).until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//*[@id='kw']"))); 27 //只要存在一個就是true 28 ExpectedConditions.presenceOfAllElementsLocatedBy(By.xpath("//*[@id='kw']")); 29 //元素中的text是否包含語氣的字符串 30 ExpectedConditions.textToBePresentInElementLocated(By.xpath("//*[@id='kw']"), "百度一下"); 31 //元素的value屬性中是否包含語氣的字符串 32 ExpectedConditions.textToBePresentInElementValue(By.xpath("//*[@id='kw']"), "***"); 33 //判斷該表單是否能夠切過去,能夠就切過去並返回true,不然放回false 34 ExpectedConditions.frameToBeAvailableAndSwitchToIt(By.id("**")); 35 //判斷某個元素是否不存在於DOM或不可見 36 ExpectedConditions.invisibilityOfElementLocated(By.xpath("//*[@id='kw']")); 37 //判斷元素是否能夠點擊 38 ExpectedConditions.elementToBeClickable(By.xpath("//*[@id='kw']")); 39 //等到一個元素從DOM中移除 40 ExpectedConditions.stalenessOf(driver.findElement(By.xpath("//*[@id='kw']"))); 41 //判斷某個元素是否被選中,通常用在下拉列表 42 ExpectedConditions.elementToBeSelected(By.xpath("//*[@id='kw']")); 43 //判斷某個元素的選中狀態是否符合預期 44 ExpectedConditions.elementSelectionStateToBe(By.xpath("//*[@id='kw']"), true); 45 //判斷某個元素(已定位)的選中狀態是否符合預期 46 ExpectedConditions.elementSelectionStateToBe(driver.findElement(By.xpath("//*[@id='kw']")), false); 47 //判斷頁面中是否存在alert 48 new WebDriverWait(driver,5).until(ExpectedConditions.alertIsPresent()); 49 //--------------------自定義判斷條件----------------------------- 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:ui
1.除了以上內容,selenium還提供了不少預置的判斷方法。spa
2.這些判斷方法,在超出時間限制時就會拋出異常。firefox