Скачать или смотреть Running Cucumber Feature Files in Parallel Scenarios

Learn how to run multiple scenarios in `Cucumber` feature files `in parallel` while ensuring that only one feature file executes at a time using `TestNG`, `Maven`, and configuration settings.
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Running Cucumber Feature Files in Parallel Scenarios: A Step-by-Step Guide

In the world of software testing, efficiency is key. By utilizing Cucumber's capabilities with TestNG, you can set up parallel execution for your test scenarios to speed up the testing process. But what if you have multiple feature files, and you want to run all the scenarios in a feature file in parallel, while ensuring that only one feature file executes at a time? In this guide, we will explore how to achieve this using Maven SureFire, TestNG, and a few specific configurations.

The Challenge at Hand

Imagine you have several feature files, each containing multiple scenarios. You would like them to run in a parallel manner within each feature file, but you want to control the execution so that only one feature file is active at a time. To illustrate, consider this setup:

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Your objective is to run all scenarios of Feature File 1 in parallel, then move on to Feature File 2, and so forth. Today we'll take a closer look at how to configure your project to facilitate this execution strategy.

Understanding the Solution

The challenge arises because TestNG does not support multi-level parallel execution with just a simple configuration change in @ DataProvider. Here’s how to get around this limitation by using a suite XML file along with proper Java class structuring.

Step-by-Step Solution

Create One Java Class per Feature File:

For each feature file, create a corresponding Java test class. This separation will make handling the execution of scenarios within the feature file more manageable.

Set Up a TestNG Suite File:

Create a TestNG XML suite file that lists all the Java classes that correspond to your feature files. In this suite file, ensure to define your parallel strategy as “none.” This setting compels TestNG to sequentially run each class (i.e., one feature file at a time).

Here is an example of how your suite XML might look:

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Configure Your DataProvider:

In your test classes, ensure you have the @ DataProvider set with parallel = true. This will allow the scenarios within each feature file to run in parallel.

Here’s how the code in your test class should look:

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Conclusion

By following these structured steps, you can effectively run all scenarios within each feature file in parallel, while maintaining a controlled environment where only one feature file runs at a time. This approach not only enhances the performance of your tests but also keeps your execution organized and manageable.

Keep in mind that with proper configuration and the correct setup in your project structure, utilizing parallel execution in your Cucumber tests can be both efficient and effective.

If you have any questions or need further clarification, feel free to ask!