我面临的争论类型不匹配＆＃39;尝试使用@dataprovider类将少量值从excel表传递到页面对象类中的少数方法时出错。反过来，这些方法在@test类中调用。你能帮我解决这个问题。代码已在下面提到。
的DataProvider
@DataProvider(name="ProductInfo")
public static Object[][] productInfoDataprovider() throws Throwable {
File file = new File("C:/Users/chetan.k.thimmanna/Documents/Selenium/Resources/QAToolsECommerce/ECommerce_Data.xlsx");
FileInputStream fis = new FileInputStream(file);
XSSFWorkbook wb = new XSSFWorkbook(fis);
XSSFSheet sheet = wb.getSheet("Sheet1");
int lastRowNum = sheet.getLastRowNum();
Object[][] obj = new Object[lastRowNum][5];
for(int i=0; i<lastRowNum; i++){
XSSFRow row = sheet.getRow(i+1);
obj[i][0]= row.getCell(0).getNumericCellValue();
obj[i][1]= row.getCell(1).getStringCellValue();
obj[i][2]= row.getCell(2).getNumericCellValue();
obj[i][3]= row.getCell(3).getStringCellValue();
obj[i][4]= row.getCell(4).getStringCellValue();
}
fis.close();
return obj;
}
PageObjects
public class QaToolsECommercePageObjects {
WebDriver driver;
/*Method to launch the browser and select the browser type */
public void setBrowser(int browser){
if(browser == '1'){
driver = new FirefoxDriver();
}else if(browser == '2'){
System.setProperty("webdriver.chrome.driver", "C:/Users/chetan.k.thimmanna/Documents/Selenium/Resources/chromedriver.exe");
driver = new ChromeDriver();
}else if(browser == '3'){
System.setProperty("webdriver.ie.driver", "C:/Users/chetan.k.thimmanna/Documents/Selenium/Resources/IEDriverServer.exe");
driver = new InternetExplorerDriver();
}
//Maximize the window
driver.manage().window().maximize();
driver.get("http://store.demoqa.com/");
//driver.get("http://toolsqa.com/");
//browser load time
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
}
/* Searches the product required to purchase */
public void searchProduct(String product){
driver.findElement(By.name("s")).sendKeys(product);
driver.findElement(By.name("s")).sendKeys(Keys.ENTER);
//driver.findElement(By.linkText("Product Category")).click();
}
/* Verifies the product name in the product search result and adds the product to the cart*/
public void productVerify(String product){
String productValue = driver.findElement(By.id("grid_view_products_page_container")).getText();
boolean val = productValue.contains(product); //Value from excel sheet
if(val == true){
System.out.println("The product searched is found :" +productValue);
//Click on add to cart
driver.findElement(By.name("Buy")).click();
//Click on Go to check out
driver.findElement(By.className("go_to_checkout")).click();
}else
{
System.out.println(" The product searched is not found :" +productValue);
}
}
/* Verifies the product name, quantity, price and total price of the product */
public void checkoutCartVerify(String product, int quantity, String prices, String totalPrices){
WebElement cartTable = driver.findElement(By.className("checkout_cart"));
List<WebElement> cartRows = cartTable.findElements(By.tagName("tr"));
//Product name
WebElement prodRow = cartRows.get(1);
List<WebElement> prodCols = prodRow.findElements(By.tagName("td"));
WebElement prodName = prodCols.get(1);
String oriProdName = prodName.findElement(By.tagName("a")).getText();
//Comparing product name
if(oriProdName.equals(product)){
System.out.println("The Product searched and added to the cart is correct: "+oriProdName);
}else
{
System.out.println("The product searched and added to the cart is incorrect: "+oriProdName);
}
//Quantity
WebElement quantityCombo = prodCols.get(2).findElement(By.tagName("form"));
List<WebElement> quantityVals = quantityCombo.findElements(By.tagName("input"));
String prodQuantity = quantityVals.get(0).getAttribute("value");
int pq = Integer.parseInt(prodQuantity);
//Comparing product quantity
if(pq == quantity){
System.out.println("The Product quantity added to the cart is correct: "+pq);
}else
{
System.out.println("The product quantity added to the cart is incorrect: "+pq);
}
//Price
String price = prodCols.get(3).getText();
String[] priceSplit = price.split("\\.");
String prodPrice = priceSplit[0];
String priceFrac = priceSplit[1];
System.out.println(price);
//Comparing price of the quantity
if(priceFrac.equals("00")){
if(prodPrice.equals(prices)){
System.out.println("The Product price added to the cart is correct: "+prodPrice);
}else{
System.out.println("The product price added to the cart is incorrect: "+prodPrice);
}
}else
{
if(price.equals(prices)){
System.out.println("The Product price added to the cart is correct: "+price);
}else{
System.out.println("The product price added to the cart is incorrect: "+price);
}
}
//Total Price
String totalPrice = prodCols.get(4).getText();
String[] totalpriceSplit = totalPrice.split("\\.");
String prodTotalprice = totalpriceSplit[0];
String prodpriceFrac = totalpriceSplit[1];
System.out.println(totalPrice);
//Comparing Total Price of the quantity
if(prodpriceFrac.equals("00")){
if(prodTotalprice.equals(totalPrices)){
System.out.println("The Product Total price added to the cart is correct: "+prodTotalprice);
}else{
System.out.println("The product Total price added to the cart is incorrect: "+prodTotalprice);
}
}else
{
if(totalPrice.equals(totalPrices)){
System.out.println("The Product Total price added to the cart is correct: "+totalPrice);
}else{
System.out.println("The product Total price added to the cart is incorrect: "+totalPrice);
}
}
}
测试类
public class QaToolsECommerceTest {
@Test(dataProvider = "ProductInfo", dataProviderClass = QaToolsECommerceDataProvider.class)
public void eCommerceProduct(int browser, String product, int quantity, String prices, String totalPrices) {
QaToolsECommercePageObjects qaEpo = new QaToolsECommercePageObjects();
qaEpo.setBrowser(browser);
qaEpo.searchProduct(product);
qaEpo.productVerify(product);
qaEpo.checkoutCartVerify(product, quantity, prices, totalPrices);
}
}
错误：
失败：eCommerceProduct（2.0，＆＃34; Magic Mouse＆＃34;，1.0，＆＃34; $ 150＆＃34;，＆＃34; $ 150＆＃34;） java.lang.IllegalArgumentException：参数类型不匹配 at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method） at sun.reflect.NativeMethodAccessorImpl.invoke（Unknown Source） at sun.reflect.DelegatingMethodAccessorImpl.invoke（Unknown Source） 在java.lang.reflect.Method.invoke（未知来源）
答案 0 :(得分：1)
失败：eCommerceProduct（2.0，＆＃34; Magic Mouse＆＃34;，1.0，＆＃34; $ 150＆＃34;，＆＃34; $ 150＆＃34;） java.lang.IllegalArgumentException：参数类型不匹配
实际上，在方法eCommerceProduct()中，您期望参数为int，String，int，String，String，而实际参数为传递为double，String，double，String，String。
所以你应该改变方法eCommerceProduct()，期望参数为： -
public void eCommerceProduct(double browser, String product, double quantity, String prices, String totalPrices) {
-------
-------
}
已修改： -
正在运行：C：\ Users \ chetan.k.thimmanna \ AppData \ Local \ Temp \ testng-eclips e - 1620381105 \ testng -customsuite.xml 1 FAILED：eCommerceProduct（2，＆＃34; Magic Mouse＆ ＃34;，1，＆＃34; $ 150＆＃34;，＆＃34; $ 150＆＃34;）java.lang.NullPointerException：qaToolsECommerceExcel.QaToolsECommercePageObjects.setBrowser（QaToolsECommercePag eObjects.java:42)
发生此错误是因为您在QaToolsECommercePageObjects.setBrowser(browser);方法中调用了eCommerceProduct()，并在browser方法中将int值传递到double或QaToolsECommercePageObjects.setBrowser(int browser)你将它比作if(browser == '1')表示字符串错误。
您应该修改QaToolsECommercePageObjects.setBrowser(int browser)方法，如下所示： -
public class QaToolsECommercePageObjects {
WebDriver driver;
public void setBrowser(int browser){
WebDriver driver
if(browser == 1){
driver = new FirefoxDriver();
}else if(browser == 2){
System.setProperty("webdriver.chrome.driver", "C:/Users/chetan.k.thimmanna/Documents/Selenium/Resources/chromedriver.exe");
driver = new ChromeDriver();
}else if(browser == 3){
System.setProperty("webdriver.ie.driver", "C:/Users/chetan.k.thimmanna/Documents/Selenium/Resources/IEDriverServer.exe");
driver = new InternetExplorerDriver();
}
//Maximize the window
driver.manage().window().maximize();
driver.get("http://store.demoqa.com/");
//driver.get("http://toolsqa.com/");
//browser load time
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
}
-----
-----
}
答案 1 :(得分：1)
在dataprovider函数productInfoDataprovider（）中，您有
obj[i][0]= row.getCell(0).getNumericCellValue();
obj[i][2]= row.getCell(2).getNumericCellValue();
getNumericCellValue（）将返回参数设置为double，因为您将获得参数类型不匹配。
使用
键入将其强制转换为int obj[i][0]= (int)row.getCell(0).getNumericCellValue();
obj[i][2]= (int)row.getCell(2).getNumericCellValue();
答案 2 :(得分：1)
当你启动浏览器时，你写了＆＃34;否则如果（浏览器==＆＃39; 2＆＃39;）＆＃34;。在这里你期望2作为字符，但你正在证明数据为int / Double。试试
else if(browser == 2 )
在此之前，将浏览器变量的double值转换为整数。