Cucumber TestNG Selenium Parallel execution doesnt provide proper cucumber reports

[anit1992]

I have been using a Cucumber TestNG framework for parallel execution. TestNG is configured for multi-browser testing using parameters, and I fetch these parameter values using TestNG annotations. Additionally, parallel execution is enabled in TestNG with a thread count of 2, and I trigger test automation from TestNG.

The issue I'm facing is that after parallel execution, I am not getting a consolidated cucumber.json report. Even though the tests run in two browsers simultaneously, the report.json file contains data for only one scenario. Also, cucumber.html is blank. How can I resolve this?

[mpkorstanje]

From the perspective of Cucumber, each time it is executed by TestNG is a separate independent execution. It doesn't matter if this happens in serial or parallel.

So you'd have to configure Cucumber to write the reports for each browser to a different file. See https://github.com/cucumber/cucumber-jvm/tree/main/cucumber-testng#configure-cucumber-options-via-testng-xml.

And there should be some third party tools available to merge reports.

Alternatively you could use only the reports created by TestNG.

[anit1992]

Im using below method

Write unique JSON reports per execution. Configure Cucumber options in testng.xml. Merge reports using a third-party tool. 1️⃣ Configure Cucumber to Write Separate Reports

Modify testng.xml to pass a unique JSON report name for each execution.

✅ Each test execution gets a unique JSON report name.

2️⃣ Modify TestRunner.java to Use Unique Reports 📝 TestRunner.java import io.cucumber.testng.AbstractTestNGCucumberTests; import io.cucumber.testng.CucumberOptions; import org.testng.annotations.BeforeClass; import org.testng.annotations.Parameters; @CucumberOptions( features = "src/test/resources/features", glue = "stepDefinitions", plugin = {} // Will be set dynamically ) public class TestRunner extends AbstractTestNGCucumberTests { @BeforeClass(alwaysRun = true) @parameters("reportName") public void setupReport(String reportName) { System.setProperty("cucumber.options", "--plugin json:target/cucumber-reports/" + reportName); } }

✅ Ensures each execution writes to a different cucumber.json.

3️⃣ Merge JSON Reports After Execution 🛠️ Using maven-cucumber-reporting Plugin

Modify pom.xml:

net.masterthought maven-cucumber-reporting 5.7.4 merge-json-reports verify generate ${project.build.directory}/cucumber-reports ${project.build.directory}/cucumber-reports

✅ Merges cucumber-chrome.json & cucumber-edge.json into a final cucumber.json.

But still I'm not getting any report.json. could you please look into it

[anit1992]

CucumberTestNGFramework.zip

Please refer this zip file. You can try running. Even after parallel running, report.json contains only data of one execution

[mpkorstanje]

The cucumber.options property has long been removed from Cucumber. Not would using it in the manner described ensure a unique report name when running in parallel. System properties are global setting and reading them concurrently results in a race condition.

Further more your reproducer

• only contains a single scenario
• does not contain a testng.xml
• does not appear to be able to run two browsers in parallel

and above all not compile or execute.

Are you following AI generated instructions?