This is probably a stupid question but I haven't found an answer that leads me to a solution yet
Say I have a testmethod to verify the functionality of a login portal. It's in TestClassA. I want to run that method in TestClassB's TestInitialize method so I can reliably have selenium start on a blank slate for testing features past that login portal.
Here's the test code in question
using Login_Elements;
using Dashboard;
namespace Test_Dashboard_Elements
{
[TestClass]
public class DashboardTests
{
IWebDriver _driver;
DashboardElements dash;
[TestInitialize]
public void Test_Setup()
{
dash = new DashboardElements(_driver);
LoginPage login = new LoginPage(_driver);
_driver = new FirefoxDriver();
_driver.Navigate().GoToUrl("exampleurl/login");
login.Login();
}
}
Which calls an instance of DashboardElements and passes the selenium webdriver, then calls an instance of LoginPage and passes the selenium webdriver (which I assume is the issue), and calls the login method from LoginPage
IWebDriver _driver;
//Username field
[FindsBy(How = How.Id, Using = "username")]
private IWebElement userName;
//Password field
[FindsBy(How = How.Id, Using = "password")]
private IWebElement password;
//Submit Button
[FindsBy(How = How.ClassName, Using = "btn")]
private IWebElement submit_button;
//Constructor
public LoginPage(IWebDriver driver)
{
this._driver = driver;
PageFactory.InitElements(driver, this);
}
//Sends passed string to username field
public void sendUserName(string strUsername)
{
userName.SendKeys(strUsername);
}
//Sends passed string to password field
public void sendPassword(string strPassword)
{
password.SendKeys(strPassword);
}
//Clicks submit button
public void submit()
{
submit_button.Click();
}
public void Login()
{
sendUserName("username");
sendPassword("password!");
submit();
}
This returns
>Message: Initialization method Test_Dashboard_Elements.DashboardTests.Test_Setup threw exception. System.ArgumentNullException: System.ArgumentNullException: searchContext may not be null Parameter name: searchContext
I feel like this has to do with passing _driver twice but I'm not sure how else to do it
Stack trace:
>Test Name: Test_Link_Reports
Test FullName: Test_Dashboard_Elements.DashboardTests.Test_Link_Reports
Test Source: c:\Users\%USER%\Documents\Visual Studio 2013\Projects\%PATH TO DIR%\Page Tests\Dashboard Tests.cs : line 29
Test Outcome: Failed
Test Duration: 0:00:06.0255821
Result Message:
>Initialization method Test_Dashboard_Elements.DashboardTests.Test_Setup threw exception. System.ArgumentNullException: System.ArgumentNullException: searchContext may not be null
Parameter name: searchContext.
Result StackTrace:
at OpenQA.Selenium.Support.PageObjects.DefaultElementLocatorFactory.LocateElement(ISearchContext searchContext, IEnumerable`1 bys)
at OpenQA.Selenium.Support.PageObjects.WebElementProxy.get_WrappedElement()
at OpenQA.Selenium.Support.PageObjects.WebElementProxy.SendKeys(String text)
at Login_Elements.LoginPage.sendUserName(String strUsername) in c:\Users\%USER%\Documents\Visual Studio 2013\Projects\%PATH TO DIR%\Page Elements\Login Elements.cs:line 39
at Login_Elements.LoginPage.Login() in c:\Users\%USER%\Documents\Visual Studio 2013\Projects\%PATH TO DIR%\Page Elements\Login Elements.cs:line 56
at Test_Dashboard_Elements.DashboardTests.Test_Setup() in c:\Users\%USER%\Documents\Visual Studio 2013\Projects\%PATH TO DIR%\Page Tests\Dashboard Tests.cs:line 24
DefaultElementLocatorFactory.LocateElement(ISearchContext searchContext, IEnumerable 1 bys)
WebElementProxy.get_WrappedElement()
WebElementProxy.SendKeys(String text)
LoginPage.sendUserName(String strUsername)
LoginPage.Login()
DashboardTests.Test_Setup()
Seems like the issue is with he driver
instantiation. You are not passing the instantiated driver to DashboardElements()
. To fix this:
driver
. Pass the instantiated driver
to the PageObject
.
using Login_Elements; using Dashboard; namespace Test_Dashboard_Elements { [TestClass] public class DashboardTests { IWebDriver _driver; DashboardElements dash; [TestInitialize] public void Test_Setup() { _driver = new FirefoxDriver(); dash = new DashboardElements(_driver); LoginPage login = new LoginPage(_driver); _driver.Navigate().GoToUrl("exampleurl/login"); login.Login(); } }
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