Writing Proper Gherkin Scenarios (The Biggest Challenge)

Problem

Business users write scenarios that are too technical, testers write steps that are too detailed, and scenarios become long and unreadable.

Bad Example

 
Given user clicks on login button
And user enters username in username field
And user enters password in password field
 

Why It's a Problem

Business people don't understand it, and it's high maintenance.

Solution

Follow business behavior, not UI actions.

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Correct Way

 
Given user is logged in with valid credentials
 

Lesson

BDD scenarios should describe WHAT, not HOW.

Step Definition Duplication

Problem

The same steps written again and again, with multiple step definitions for the same meaning.

 
Given user is logged in
Given user logged into application
 

Two different step definitions get created for the same intent.

Impact

  • Confusion
  • Maintenance headache
  • Test failures

Solution

  • Use common wording guidelines.
  • Create reusable generic steps.
  • Maintain a step-definition review process.

Mapping Gherkin Steps to Automation Code

Problem

One Gherkin step maps to complex automation logic, creating tight coupling between steps and the UI.

For example:

 
Then user should see dashboard
 

The dashboard loads differently for admin, normal, and first-time users, pushing complex conditions inside the Step Definition.

Solution

Use Page Object Model + BDD, keep Step Definitions thin, and move logic to Page/Service classes.

Rule

Step Definition = Call methods, not write logic.

Non-Technical Stakeholder Involvement

Problem

Product Owners don't review Feature Files, and BDD becomes "just another automation framework."

The reality: BDD fails if collaboration fails.

Solution

  • Conduct Feature File review meetings.
  • Use simple business language.
  • Limit scenarios per feature.

Real Project Practice

  • Product Owner reviews Feature Files.
  • QA owns automation.
  • Developers validate behavior.

Test Data Handling

Problem

Hard-coded data inside Feature Files and data mismatch across environments.

 
Given user logs in with username "admin" and password "admin123"
 

Issues

  • Fails in QA/UAT.
  • Security risk.

Solution

Use Scenario Outline, externalize test data (JSON, Excel, DB), and use dynamic data generation.

 
Scenario Outline: Login with valid credentials
  Given user logs in with "<username>" and "<password>"
 

Large Feature Files & Maintenance

Problem

One Feature File with 30–40 scenarios becomes difficult to understand and debug.

Solution

Split by business flow (one Feature = one behavior) and tag scenarios properly.

 
@smoke @login
@regression @payment
 

Execution Time & CI/CD

Problem

BDD suites take more time because multiple scenarios mean multiple browser launches.

Solution

Real Project Setup

  • Smoke → On every commit.
  • Regression → Nightly.

Team Mindset Shift (Most Practical Challenge)

Problem

The team treats BDD as "Cucumber automation" with no real behavior discussion.

Solution

  • Training sessions.
  • Shared understanding of BDD's purpose.
  • Clear Do's & Don'ts documentation.

Trainer Tip

BDD is a process, not a tool.

The Interview Answer (STAR and Short)

Real-Time Project Summary

"In my project, the main challenges in implementing BDD were writing meaningful Gherkin scenarios, avoiding step duplication, maintaining step definitions, managing test data, and ensuring stakeholder collaboration. We solved these by defining Gherkin standards, reusing steps, combining BDD with POM, externalizing test data, and integrating tagged execution with CI pipelines."

Without STAR (3–4 Lines)

"While implementing BDD, I faced challenges like unclear Gherkin scenarios, step definition duplication, complex automation mapping, and limited business involvement. We addressed this by following proper Gherkin standards, using reusable steps, keeping step definitions lightweight, and improving collaboration between QA, Dev, and Product teams."

Very Short Version

"The main challenges were writing proper Gherkin scenarios, step duplication, maintaining step definitions, and managing test data."

FAQs

What Is the Biggest Challenge in BDD?

Writing proper Gherkin.

Scenarios drift too technical or too detailed.

The fix is describing WHAT (business behavior), not HOW (UI actions).

How Do You Avoid Step Definition Duplication?

Use:

  • Common wording guidelines.
  • Reusable generic steps.
  • Step Definition review process.

This ensures "user is logged in" and "user logged into application" don't create two different Step Definitions.

How Do You Keep Step Definitions Maintainable?

Keep them thin.

Call Page/Service methods, don't write business logic inside Step Definitions.

Step Definition = Call methods, not write logic.

How Do You Handle Test Data in BDD?

Externalize it using:

  • JSON
  • Excel
  • Database

Use Scenario Outline instead of hardcoding values in Feature Files.

Why Can BDD Fail Even With Good Automation?

Because BDD is a process, not a tool.

If Product Owners don't review Feature Files and collaboration breaks down, it becomes "just another automation framework."

How Do You Manage Large Feature Files and Slow Suites?

  • Split by business flow (one Feature = one behavior).
  • Tag scenarios properly.
  • Execute in parallel.
  • Use tag-based Jenkins execution.

Smoke: On every commit.

Regression: Nightly.