假设我有代码:
namespace SeleniumTests
{
[TestFixture(typeof(FirefoxDriver))]
[TestFixture(typeof(InternetExplorerDriver))]
public class TestWithMultipleBrowsers<TWebDriver> where TWebDriver : IWebDriver, new()
{
private IWebDriver driver;
[SetUp]
public void CreateDriver () {
this.driver = new TWebDriver();
}
[Test]
public void GoogleTest() {
driver.Navigate().GoToUrl("http://www.google.com/");
IWebElement query = driver.FindElement(By.Name("q"));
query.SendKeys("Bread" + Keys.Enter);
Thread.Sleep(2000);
Assert.AreEqual("bread - Google Search", driver.Title);
driver.Quit();
}
}
}
我想阻止
[SetUp]
public void CreateDriver () {
this.driver = new TWebDriver();
}
搬到基地.但我不知道在这种情况下如何从基类继承.我如何处理< TWebDriver>哪里有TWebDriver:IWebDriver,new()?
解决方法:
这不像你的例子那样使用泛型,而是像依赖注入一样工作.
您需要一种方法来创建webdriver的实例.
public class DriverFactory
{
public IWebDriver Driver { get; set; }
public enum DriverType
{
IE,
Firefox,
Chrome
}
public IWebDriver GetDriver(DriverType typeOfDriver)
{
if (typeOfDriver == DriverType.IE) return new InternetExplorerDriver();
if (typeOfDriver == DriverType.Chrome) return new ChromeDriver();
return new FirefoxDriver(); // return firefox by default
}
}
然后从你的设置打电话:
[Setup]
public void CreateDriver()
{
var driverFactory = new DriverFactory();
this.driver = driverFactory.GetDriver(DriverType.Chrome);
}
您可以继承该类:
public class TestWithMultipleBrowsers : DriverFactory