How to make a method with #BeforeClass to run more than once? - testing

I wish to run a method with #BeforeClass annotation twice (or more). Is there a way to do so with TestNG?
Like: #Test(invocationCount = 2)?

No there is no such provision available in TestNG.
#BeforeClass is a configuration method that is designed to run exactly once before any #Test methods within a particular class get executed.
So there's no way of altering its behavior.

Related

How to tear down selenium webdriver when the #tests are in different classes

I have about 5 different classes with JUnit tests (selenium tests).
I need a way to teardown the webdriver at the end of the program.
So I need to know where to put the #AfterClass and how to pass the driver to it so it can be closed.
I thought of creating a test suit and implement the &AfterClass tearDownClass() there. But I'm not sure how to pass the driver to it to close.
You can use below code
[OneTimeTearDown]
public void SetupTestTeardown()
{
KillDriver();
Assert.AreEqual("", verificationErrors.ToString());
}
The OneTimeTearDown attribute is inherited from any base class. Therefore, if a base class has defined a OneTimeTearDown method, that method will be called after any test methods in the derived class.
You may define a OneTimeTearDown method in the base class and another in the derived class. NUnit will call base class OneTimeTearDown methods after those in the derived classes.
Add #BeforeClass to your superclass. Initiate the driver in that. Due to this, the test classes will also inherit the driver.
Add the driver teardown in your superclass in #AfterClass

How to use TestNg in Selenium WebDriver?

How to use TestNg in Selenium WebDriver? Explain me what is the usage of that.
I am new Learner in Selenium WebDriver
Hi TestNG can be defined as
1.TestNG is a testing framework designed to simplify a broad range of testing needs, from unit testing (testing a class in isolation of the others) to integration testing (testing entire systems made of several classes, several packages and even several external frameworks, such as application servers).
2.For official TestNG documentation Please Click Here
Before you can use TestNG with selenium you have to install it first.Talking in consideration that you are working with eclipse (any version)
1.There are various ways to install TestNG either follow this or this or simply go to Help/Eclipse MarketPlace. under Find type Test NG and click on the install
now how to use Test NG in eclipse with selenium
#BeforeTest
public void TearUP(){
// preconditions for sample test
// like browser start with specific URL
}
#Test
public void SampleTest(){
// code for the main test case goes inside
}
#AfterTest
public void TearDown1(){
// thing to done after test is run
// like memory realese
// browser close
}
Some information for above code
TestNG have various annotations for more info on annotation go to the above link
#BeforeSuite: The annotated method will be run before all tests in this suite have run.
#AfterSuite: The annotated method will be run after all tests in this suite have run.
#BeforeTest: The annotated method will be run before any test method belonging to the classes inside the <test> tag is run.
#AfterTest: The annotated method will be run after all the test methods belonging to the classes inside the <test> tag have run.
#BeforeGroups: The list of groups that this configuration method will run before. This method is guaranteed to run shortly before the first test method that belongs to any of these groups is invoked.
#AfterGroups: The list of groups that this configuration method will run after. This method is guaranteed to run shortly after the last test method that belongs to any of these groups is invoked.
#BeforeClass: The annotated method will be run before the first test method in the current class is invoked.
#AfterClass: The annotated method will be run after all the test methods in the current class have been run.
#BeforeMethod: The annotated method will be run before each test method.
#AfterMethod: The annotated method will be run after each test method.
One of the primary usage of selenium is to test ui functionality, and as a testing framework testNg has many techniques to run and report the tests and can be leveraged for ui testing with selenium. One of the tools effectively use this is selion (https://github.com/paypal/selion).

#BeforeMethod implementaion issue

I want to implement BeforeMethod Annotation for specific test, it's getting implemented before every test can anybody know how resolve this issue!!! even tried with groups!!
Thanks
The solution is move out the test that doesn't need the #Before method into a separate test class. Also if you have some other code common to the tests you may move it into a helper class.
The easiest way is to call the method explicitly in your test.
#Test
public void yourTest() {
beforeMethod();
//your test
}

how to disactivate #Before for a particular method?

I am writing a test class in java using spring and junit (actually I have "#RunWith(SpringJUnit4ClassRunner.class)" at the bottom of my class).
there is a method with #Before annotation that I want it not to be run before a particular test method(but not the rest). how can I do this?
thanks
You have a few options:
Refactor to put that one test in a new test class which doesn't have #Before.
Refactor to put that one test in a new test class extending the original one that overrides #Before to do nothing.
Refactor to have all the other methods call the before method explicitly and remove the #Before annotation (I don't recommend you go with this one)

junit suite tests, in phases: All #Before, then all #Test, then all #After

I'd like a junit runner that executes all #Before methods, then all #Test methods, then all #After methods.
This is how my System-Tests work. The #Before methods are run, to setup the test data and scenarios. The application is started. Then the #Test methods are run with the application running in the background. Those #Test methods can change data or respond to the application. Then the framework waits for the application to finish up. Afterward, the #After methods are run to verify the test results.
I already use junit annotations, assertion methods, and other various bits. But I just can't figure out how to use junits runners to execute test methods in this way. I couldn't make heads nor tails of the "Computer" interface in junit 4.8, or figure out how to apply Rules to this.
This isn't what JUnit does. JUnit has a design philosophy that emphasizes independent unit tests. As such, it isn't a natural framework for system tests. What you want to do fits nicely into TestNG (which as a design goal tries to straddle both unit and system tests).
In JUnit the #Before and #After are run before and after each test. You can shoehorn this kind of thing into JUnit using a Suite, which references all of your tests and is responsible for all setup and teardown, so the Suite's #BeforeClass and #AfterClass methods get run before and after the suite, which if you organize it correctly could be all of your system tests.
There are lot of organizational challenges in the code when it gets large with the JUnit approach, so I would suggest you consider and alternative framework if this is the bulk of what you want to do.
I think you can solve this by making only one actual test method, that just calls are your actual tests, which you do not declare as ssuch.
Kinda like:
#Before
public void beforeTest(){}
#After
public void afterTest(){}
#Test
public void test(){
test1();
test2();
test3();
}
public void test1(){}
public void test2(){}
public void test3(){}