TestNG Attributes

What are Attributes?

• Attributes are meta properties which are used to provide information to the testmethods

Why do we need to use it?

• To ease the execution by injecting dependencies,prioritizing, grouping the testcases.

When to use attributes?

• To control the execution flow.

TestNg –Helper attributes

Available attributes in TestNG:

• priority
• enabled
• invocationCount
• threadpoolsize
• invocationTimeOut
• dependsOnMethod
• alwaysRun
• description
• timeOut

Attributes- Priority

• to prioritize the test method
• works only with @Test method
• executes the test method with lowest priority
• default value=0

Syntax :

  @Test(priority=1)
  public void m1() {

  }

Attribute-enabled

• to ignore the test method from execution
• works only with @Test method
• default value=true
• when set to false, the test method will not be executed
• Syntax :

  @Test(enabled=false)
  public void m1(){

  }

Attribute- invocationCount

• to execute the test method multiple time with same set of data
• works only with @Test method
• default value=1
• Syntax :

  @Test(invocationCount=3)
  public void m1(){

  }

• Method will be executed thrice
• InvocationTimout → time limit will be set to invoke number of invocations

  @Test(invocationCount=3,invocationTimeOut=3000)
  public void m1(){

  }

• Method will be executed thrice for the time unit of 3ms

Attribute -threadPoolSize

• Comes along with invocationCount
• control the number of threads required to execute the test method
• Supports parallel execution at @Test level
• default value=0
• Syntax :

  @Test(invocationCount=3,threadPoolSize=2)
  public void m1(){

  }

*Method will be executed thrice in parallel run with 2 threads

Attribute-dependsOnMethods

• to inject dependency between two @test methods

• if the individual method fails, then the dependent method will be skipped from execution

• Syntax : (within the class)

  @Test(dependsOnMethods={"method2","method3"})
  public void m1(){

  }
  @Test
  public void method2(){

  }
  @Test
  public void method3(){

  }

• Syntax : (between the class)

  @Test(dependsOnMethods="packageName.className.methodName")
  public void m1(){
  }

Attribute -alwaysRun

• executes the dependent test method even though the independent method fails
• default value -false
• Syntax :

  @Test(dependsOnMethods="method2" , alwaysRun=true)
  public void m1(){
  
  }
  
  @Test
  public void method2(){
    throw new Exception();
  }