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  • Book Overview & Buying Cucumber Cookbook
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Cucumber Cookbook

Cucumber Cookbook

By : Shankar Garg
3.7 (3)
Buy this Book
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Cucumber Cookbook

Cucumber Cookbook

3.7 (3)
By: Shankar Garg
Buy this Book

Overview of this book

This book is intended for business and development personnel who want to use Cucumber for behavior-driven development and test automation. Readers with some familiarity with Cucumber will find this book of most benefit. Since the main objective of this book is to create test automation frameworks, previous experience in automation will be helpful.
Table of Contents (8 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Sections
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Conventions
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Reader feedback
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Customer support
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1
1. Writing Feature Files
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1. Writing Feature Files
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Introduction
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Writing your first Feature file with one Scenario
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Creating Scenarios with different Steps
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Creating a Scenario with the And and But keywords
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Writing a Feature file with multiple Scenarios
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Adding Backgrounds to Feature files
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Sending multiple arguments in Steps
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Using complex data types to store data
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Implementing Scenario Outlines
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Creating a Feature file in a language other than English
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Combining Scenarios, Backgrounds, and Scenario Outlines
2
2. Creating Step Definitions
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2. Creating Step Definitions
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Introduction
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Creating your first Step Definitions file
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Identifying Duplicate and Ambiguous Step Definitions
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Using Regular Expressions to optimize Step Definitions
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Using Optional Capture and Noncapture Groups
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Transforming Data Tables to parse the test data
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Implementing data table diffs to compare tables
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Using Doc Strings to parse big data as one chunk
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Combining Doc Strings and Scenario Outlines
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Defining String transformations for better conversions
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3. Enabling Fixtures
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3. Enabling Fixtures
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Introduction
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Tagging
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ANDing and ORing Tags
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Adding Hooks to Cucumber code
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Tagging the Hooks
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ANDing and ORing tagged Hooks
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4. Configuring Cucumber
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4. Configuring Cucumber
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Introduction
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Integrating Cucumber with JUnit
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Overriding the Cucumber Options
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Running Strict and Running Dry
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Configuring the Cucumber Console output
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Directing the Cucumber output to a file
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Configuring the naming conventions
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5. Running Cucumber
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5. Running Cucumber
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Introduction
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Integrating Cucumber with Maven
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Running Cucumber from the Terminal
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Overriding Options from the Terminal
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Integrating Cucumber with Jenkins and GitHub
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Running Cucumber test cases in parallel
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6. Building Cucumber Frameworks
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6. Building Cucumber Frameworks
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Introduction
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Building a Web Automation framework
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Building a Mobile Automation framework
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Building a REST Automation framework
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Index
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Index

Using Regular Expressions to optimize Step Definitions

Until now, we have created Step Definitions with one-to-one relations with Steps. But this way of writing Step Definitions can be cumbersome as we write more and more Feature files. So, we will write generic Step Definitions that will apply to all the Steps that follow a certain pattern, thus bringing down the number of Step Definitions required. Let's see how to do this in this recipe.

How to do it…

  1. Let's assume we are writing Step Definitions for the following Scenario.
    Scenario: login fail - wrong username
    Given user is displayed login screen
    When user enters "wrongusername" in username field
    And user enters "123456" in password field
    And user clicks Sign in button
  2. Now run the Feature file, and copy and paste the Cucumber Step Definitions suggestions in the LoginSteps.java class. This is how LoginSteps.java looks:
    package com.StepDefinitions;

import cucumber.api.java.en.Given;
import...
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