package com.ChaptDemo01;
import org.openqa.selenium.Alert;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import java.util.concurrent.TimeUnit;
/**
* Created by Administrator on 2018/5/28 0028.
*/
@Test
public class waitDemo {
WebDriver driver;
@BeforeMethod
public void opendriver(){
System.setProperty("webdriver.chrome.driver","E:\\browser\\chromedriver.exe");
driver = new ChromeDriver();
}
@Test
public void waitTest() throws InterruptedException {
driver.get("新建文件夹/selenium_html/index.html");
driver.findElement(By.xpath("//*[@id=\"wait\"]/input")).click();
//不建议使用sleep 不确定的因素太多
//方法一 :调用全局(隐示)等待 10秒钟没有找到元素 就执行下一步
//driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
/*****************************************************************/
//方法二 :显示等待
//1.实例化一个类
WebDriverWait wait =new WebDriverWait(driver,20);
//2.调用方法 ExpectedConditions(类)下的presenceOfElementLocated
//一旦需要的元素一出现 就直接进行下一步 而不会继续等待;如果一直没有获取元素则会报超时错误
wait.until(ExpectedConditions.presenceOfElementLocated(By.xpath("//*[@id=\"display\"]/div")));
String str =driver.findElement(By.xpath("//*[@id=\"display\"]/div")).getText();
Assert.assertEquals(str,"wait for display");
}
@AfterMethod
public void Close() throws InterruptedException {
Thread.sleep(2000);
driver.quit();
}
}