Develop Reference

How to perform double tap using Appium

I'm trying to simulate double tap using Appium + C#
TouchActions actions = new TouchActions(driver);
public void PerformDoubleTap()
{
actions.DoubleTap(Element).Build().Perform();
}
Using this code I'm getting next exception
System.ArgumentException : The IWebDriver object must implement or wrap a driver that implements IHasTouchScreen.
Is there any way to perform double tap?
Edited:
Here is the class where I initialize driver
public class BaseTest
{
protected static AndroidDriver<IWebElement> driver;
AppiumLocalService service;
[OneTimeSetUp]
public void BeforeClass()
{
service = AppiumLocalService.BuildDefaultService();
service.Start();
}
[SetUp]
public void BeforeTest()
{
driver = new AndroidDriver<IWebElement>(Settings.uri, Settings.GetAndroidDesiredCapabilities());
}
[TearDown]
public void AfterTest()
{
driver.CloseApp();
}
[OneTimeTearDown]
public void AfterClass()
{
service.Dispose();
driver.Quit();
}
}

Sharing the dirver object initialized in base class to that of page classes

In the POM model, we ideally tend to have the driver object being initialized in base class. And in the page classed we pass this driver object. But the problem is to avoid passing this object as well and the tests should continue to work in parallel too in XUNit framework. Below is the structure
public class BaseClass:IDisposable
{
public IWebDriver Driver{get;set;}
public BaseClass()
{
if(Driver == null)
{
Driver = new ChromeDriver();
}
}
}
public class Page1:BaseClass
{
public void method1()
{
this.Driver.Navigate.GoToUrl("http://www.google.com")
}
}
public class Page2:BaseClass
{
public void method2()
{
this.Driver.Navigate.GoToUrl("http://www.stackoverflow.com")
}
}
public class TestClass
{
[Fact]
public void Test1()
{
new Page1().method1();
new Page2().method2();
}
}
Now in the above structure if the test executes two instances of the driver object will be created because of OOPS. If we need to avoid this we can the Driver object as static and reinitialize it if the object is null. But this will again fail when we run multiple tests in parallel. Any suggession? Thing I am trying to achieve is that full encapsulation where the Test class should not have any access to Selenium objects. These objects should be only accessible in Page class or its Operation class if we have any.

We need to ensure we create a driver singleton and its threadsafe to run parallely
[TestClass]
public class UnitTest1 : TestBase
{
[TestMethod]
public void TestMethod1()
{
new Page1().method1();
new Page2().method2();
Driver.Testcleanup();
}
[TestMethod]
public void TestMethod2()
{
new Page1().method1();
new Page2().method2();
Driver.Testcleanup();
}
public class Page1
{
public void method1()
{
Driver.Instance.Navigate().GoToUrl("http://www.google.com");
}
}
public class Page2
{
public void method2()
{
Driver.Instance.Navigate().GoToUrl("http://www.google.com");
}
}
}
Driver Class will handle the initialization of the singleton and cleanup
public sealed class Driver
{
[ThreadStatic]
public static IWebDriver driver = null;
public static IWebDriver Instance
{
get
{
if (driver == null)
{
driver = new ChromeDriver();
}
return driver;
}
}
public static void Testcleanup()
{
driver.Quit();
driver = null;
}
}

NUnit: how to invoke Test from another class with Parallelizable

When trying to invoke a Test from a different class from where it is implemented, it does not execute the Parallelizable attribute, instead, it only executes the methods sequentially ( Alltest_2() and Alltest_1() ). Is there any way to invoke them so that they are executed in parallel?
Here's a code sample:
public class AO_Alarms_4 : AO_Alarms_3
{
[SetUp]
public void DefaultSetUp(){ }
[Test]
public void Alltest_Clases()
{
Alltest_2();
Alltest_1();
}
[TearDown]
public void DefaultTearDown() { }
}
[TestFixture]
[Parallelizable]
public class AO_Alarms_3 : AO_Alarms_2
{
public WebDriverFactory driver = new WebDriverFactory(Utils.Browser);
[SetUp]
public void login_2()
{
//code
}
[Test]
[Parallelizable]
public void Alltest_2()
{
test_2();
}
public void test_2()
{
//code
}
[TearDown]
public void teardown_2()
{
//code
}
}
[TestFixture]
[Parallelizable]
public class AO_Alarms_2
{
public WebDriverFactory driver = new WebDriverFactory(Utils.Browser);
[SetUp]
public void login_1()
{
//code
}
[Test]
[Parallelizable]
public void Alltest_1()
{
test1_1();
test1_2();
}
[Test]
public void test1_1()
{
//code
}
[Test]
public void test1_2()
{
//code
}
[TearDown]
public void teardown_1()
{
//code
}
}

You can't simply call tests yourself and expect to get any of the normal NUnit behavior around tests. For example, NUnit knows what to do when it calls a test with [Parallelizable] on it - and what it does is fairly complicated. Your own call is simply calling the method you wrote.
There is nothing to stop you from calling common methods within a given test, but the tests themselves have to be invoked by NUnit.
If you can rephrase or ask another question about what you are actually trying to accomplish here, we can probably give you some advice about alternatives.

How do I Execute Code after a Test failed

I am Creating Unit Tests for a Library. This Library Connects to a Datasource and then I am doing some testing Stuff afterwards the Datasource will be disconnected.
If one of the Tests fails, the Method is Terminated and I dont get to execute the Disconnection Function.
Here's a Sample to understande the above description:
[TestMethod]
public void Test()
{
var datasourceObject = new DatasourceObject("location-string");
datasourceObject.Connect();
// Do some Stuff with Asserts
datasourceObject.Disconnect(); // must be executed
}
Is There any Bestpractice to achieve that?

If you use resource in other tests, then move it to class fields and use [TestInitialize] and [TestCleanup] to get and free that resource:
private Foo datasourceObject;
[TestInitialize]
public void TestInitialize()
{
this.datasourceObject = new DatasourceObject("location-string");
this.datasourceObject.Connect();
}
[TestMethod]
public void Test()
{
// Do some Stuff with Asserts
}
[TestCleanup]
public void TestCleanup()
{
this.datasourceObject.Disconnect();
}
If you use resource in this test only, then use either try..finally
[TestMethod]
public void Test()
{
try
{
var datasourceObject = new DatasourceObject("location-string");
datasourceObject.Connect();
// Do some Stuff with Asserts
}
finally
{
datasourceObject.Disconnect(); // must be executed
}
}
Or using statement if resource is disposable:
[TestMethod]
public void Test()
{
using(var datasourceObject = new DatasourceObject("location-string"))
{
datasourceObject.Connect();
// Do some Stuff with Asserts
}
}

Xunit create new instance of Test class for every new Test ( using WebDriver and C#)

Is there any way to run multiple tests in same browser using Webdriver (Selenium) using Xunit, , at present xunit launches new browser for every new test , below is the sample code
public class Class1
{
private FirefoxDriver driver;
public Class1()
{
driver = new FirefoxDriver();
}
[Fact]
public void Test()
{
driver.Navigate().GoToUrl("http://google.com");
driver.FindElementById("gbqfq").SendKeys("Testing");
}
[Fact]
public void Test2()
{
driver.Navigate().GoToUrl("http://google.com");
driver.FindElementById("gbqfq").SendKeys("Testing again");
}
}

While I don't know Selenium, I do know that xUnit.net creates a new instance of your test class for every test method, so that probably explains why you are seeing the behaviour you're reporting: the driver field is initialized anew for each test method, because the constructor is invoked every time.
In order to reuse a single FirefoxDriver instance, you can use xUnit.net's IUseFixture<T> interface:
public class Class1 : IUseFixture<FirefoxDriver>
{
private FirefoxDriver driver;
public void SetFixture(FirefoxDriver data)
{
driver = data;
}
[Fact]
public void Test()
{
driver.Navigate().GoToUrl("http://google.com");
driver.FindElementById("gbqfq").SendKeys("Testing");
}
[Fact]
public void Test2()
{
driver.Navigate().GoToUrl("http://google.com");
driver.FindElementById("gbqfq").SendKeys("Testing again");
}
}

after some investigation able to find the solution here it is and also updated FirefoxDriver to IWebDriver::
public class SampleFixture : IDisposable
{
private IWebDriver driver;
public SampleFixture()
{
driver = new FirefoxDriver();
Console.WriteLine("SampleFixture constructor called");
}
public IWebDriver InitiateDriver()
{
return driver;
}
public void Dispose()
{
// driver.Close();
driver.Quit();
Console.WriteLine("Disposing Fixture");
}
}
public class Class1 : IUseFixture<SampleFixture>
{
private IWebDriver driver;
public void SetFixture(SampleFixture data)
{
driver = data.InitiateDriver();
}
[Fact]
public void Test()
{
driver.Navigate().GoToUrl("http://google.com");
driver.FindElement(By.Id("gbqfq")).SendKeys("Testing");
}
[Fact]
public void Test2()
{
driver.Navigate().GoToUrl("http://google.com");
driver.FindElement(By.Id("gbqfq")).SendKeys("Testing again");
}
}

IUseFixture doesn't exist any more and seems replaced by IClassFixture. But I can't directly inject the FirefoxDriver as posted by #Mark Seemann:
public class DashboardCategoryBoxes : IClassFixture<FirefoxDriver> {
IWebDriver driver;
public DashboardCategoryBoxes(FirefoxDriver driver) {
//this.driver = wrapper.Driver;
this.driver = driver;
}
}
This throw an error
System.AggregateException : One or more errors occurred. (Class fixture type 'OpenQA.Selenium.Firefox.FirefoxDriver' may only define a single public constructor.) (The following constructor parameters did not have matching fixture data: FirefoxDriver driver)
---- Class fixture type 'OpenQA.Selenium.Firefox.FirefoxDriver' may only define a single public constructor.
---- The following constructor parameters did not have matching fixture data: FirefoxDriver driver
As a workaround, we could create some wrapper class without constructor
public class FirefoxWrapper {
FirefoxDriver driver = new FirefoxDriver();
public FirefoxWrapper Driver {
get { return driver; }
}
}
and fetch the driver from there
public class DashboardCategoryBoxes : IClassFixture<FirefoxWrapper> {
IWebDriver driver;
public DashboardCategoryBoxes(FirefoxWrapper wrapper) {
driver = wrapper.Driver;
}
}