Automated Unit Testing with ABAP: A Practical Approach

Table of Contents
About the Author
About the Technical Reviewer
Acknowledgments
Chapter 1: Introduction
	For Whom This Book Is Applicable
	How This Book Should Be Used
	Why This Book Was Written
	Credentials of the Author
	Summary
Chapter 2: Preparing to Take the  First Step
	Road Map to Automated Unit Testing
	Where We Are Now
	Where We Are Going
	Why We Are Going There
	How We Are Going to Get There
	Legacy Code
	Calisthenics
	Summary
Chapter 3: Software Quality
	The Quality of Software
	Assessing Software Quality
	Summary
Chapter 4: The Origins of Automated Unit Testing
	In the Beginning …
	The Emergence of xUnit
	Features of xUnit
	Phases of xUnit Tests
	Writing xUnit Tests
	Advantages of xUnit Tests
	Summary
	Quiz #1: xUnit Concepts
		Multiple Choice: Select the Best Answer
		True or False
Chapter 5: Automated Unit Testing with ABAP
	ABAP Unit
	The ABAP Unit Testing Framework
	Requirements for Writing ABAP Unit Tests
	Types of Components Applicable to Unit Testing
		Testable ABAP Modularization Units
	Automatic Generation of ABAP Unit Test Classes
	ABAP Language Statements Related to Unit Testing
	Writing an ABAP Unit Test
		Using Fixture Methods
	Invoking the Services of the ABAP Unit Testing Framework
	ABAP Unit Test Runner
	Unit Test Results Report
	Initiating ABAP Unit Test Execution
		Initiating Unit Tests from Within an ABAP Editor
		Initiating Unit Tests from Outside an ABAP Editor
	Evolution of the ABAP Unit Testing Framework
	Challenges to Effectively Testing ABAP Code
		Challenges Presented by Classic ABAP Event Blocks
		Challenges Presented by Global Variables
		Challenges Presented by the MESSAGE Statement
		Challenges Presented by ALV Reports
		Challenges Presented by Classic List Processing Statements
		Challenges Presented by Open SQL Statements
	Controlling the ABAP Unit Testing Framework
		Client Category
		Client Category Override
		Unit Testing Configuration
			Client Settings
			Application Server Settings
	Summary
	Quiz #2: ABAP Unit Testing Concepts
		Multiple Choice: Select the Best Answer
	True or False
Chapter 6: Rudiments
	Introducing a Simple Unit Test
	Expanding Unit Test Coverage
	Implementing Unit Tests for Function Modules
	Implementing Unit Tests for Global Classes
	ABAP Statements and Features Affecting Automated Unit Testing
		Exploring the Effects of the MESSAGE Statement
		Exploring the Effects of ALV Reports
		Exploring the Effects of Classic List Processing Statements
	How Automated Unit Testing Enables Confident Refactoring
	Diagnosing the Absence of Sufficient Test Data
	Creating and Using Fabricated Test Data
	Gaining Control Over References to Modifiable Global Variables Within Subroutines
	Summary
Chapter 7: Design for Testability
	Changing the Production Path to Enable Automated Testing
	Categorizing Input and Output
	Encapsulating Indirect Input and Output
		Interaction Points
		Encapsulating Indirect Input Processes to Accommodate Unit Testing
	Encapsulating Indirect Output Processes to Accommodate Unit Testing
	Summary
Chapter 8: Test Doubles
	Depended-On Components
	The Purpose of Test Doubles
		Alternative 1
		Alternative 2
		Alternative 3
	Using Test Doubles
		Test Double Using Base Class
		Test Double Using Interface
	Categories of Test Doubles
	Using Test Doubles for Indirect Input
	Using Test Doubles for Indirect Output
	Summary
Chapter 9: Service Locator
	Purpose of a Service Locator
	Using a Service Locator
	Using a Service Factory
		Organizing Local Components
	Summary
Chapter 10: Leveraging the Service Locator
	Issues Requiring Leverage
	Using the Service Locator to Manage Global Classes
	Using the Service Locator to Manage Function Modules
	Using the Service Locator to Manage MESSAGE Statements
		Handling MESSAGE Statements Triggering Unconditional Unit Test Failures
		Handling Unit Test Failures Arising from MESSAGE Statement Control Flow
	Using the Service Locator to Manage List Processing Statements
	Summary
Chapter 11: Test-Driven Development
	The TDD Cycle
	The Three Laws of TDD
	The Benefits of TDD
	Following the TDD Cycle
	Summary
Chapter 12: Configurable Test Doubles
	Isolation Frameworks
	mockA
	ABAP Test Double Framework
	Summary
Chapter 13: Obtaining Code Coverage Information Through ABAP Unit Testing
	Code Coverage Metrics
	Summary
Chapter 14: Cultivating Good Test Writing Skills
	The Pillars of Good Unit Tests
	Test Simplicity
	Test Coverage
	SAP Recommendations and Constraints When Writing Unit Tests
	Tips for Writing Unit Tests
	Issues Related to Testing Object-Oriented Code
	Summary
Chapter 15: Welcome to Autropolis
	One Small Step for Manual Toward Automated
	The Right Tool for the Job
	Resistance Is Futile
	Becoming the Agent for Change
	Go Forth and Automate
	Summary
Appendix A: Requirements Documentation and ABAP Exercise Programs
Appendix B: Answers to Chapter Quizzes
	Answers to Quiz #1
		Multiple Choice: Select the Best Answer
		True or False
	Answers to Quiz #2
		Multiple Choice: Select the Best Answer
		True or False
Appendix C: Concepts Associated with Defining Local Test Classes
Index