We are using TestNG
framework to manage and execute UI Tests. UI Tests might failed due to
different reasons like connection timed out/browser hang/Network Problem...etc.
This kind of issues is not related to Application under Test. In this case, we
should re run the tests once again.
TestNG is providing default
feature called Retry Analyzer which will re execute test case in case of
failure. TestNG Provides interface
called IRetryAnalyzer with method called Retry. We need to override this method
as per our requirement.
Example:
1| Assume you have a class
file with 10 Methods [@Test]
2| Lets say one got failed
due to Network issue
3| The class file,
RetryAnalyzer will make the failed test-case to re-run with desired count; But,
it display errors for all the test failures during re-run. [Explained in this
post]
4| you are ought to add a
Listener class, RetryTestListener; it will print the failure only once.
5| If the test got passed in
the final count, failure exception won't be thrown in the console.
Test Class
@BeforeTest
public void setUp()
{
System.out.println("This
is Setup Method");
}
@Test(retryAnalyzer=RetryAnalyzer.class)
public void test01() throws
Exception
{
// Assert.fail();
Assert.assertEquals("Failed",
"Passed");
}
RetryAnalyzer.java
import
org.apache.log4j.Logger;
import
org.apache.log4j.PropertyConfigurator;
import
org.testng.IRetryAnalyzer;
import
org.testng.ITestResult;
public class RetryAnalyzer
implements IRetryAnalyzer {
private int count = 0;
private int maxCount = 4; //
set your count to re-run test
protected Logger log;
private static Logger
testbaseLog;
static {
PropertyConfigurator.configure("test-config/log4j.properties");
testbaseLog =
Logger.getLogger("TestclassName");
}
public RetryAnalyzer()
{
testbaseLog.trace( "
ModeledRetryAnalyzer constructor " + this.getClass().getName() );
log =
Logger.getLogger("TestclassName");
}
@Override
public boolean
retry(ITestResult result) {
testbaseLog.trace("running retry logic
for '"
+ result.getName()
+ "' on class " +
this.getClass().getName() );
if(count < maxCount) {
count++;
return true;
}
return false;
}
}
The Test Class is having one test method with RetryAnalyzer class
which will invoke RetryAnalyzer whenever the test fails and RetryAnalyzer class re executes the same test
method automatically.
