Table Of ContentSecond Edition Page: 2
Contributors Page: 2
About the author Page: 2
About the reviewers Page: 2
Preface Page: 5
Who this book is for Page: 5
What this book covers Page: 5
To get the most out of this book Page: 5
Download the example code files Page: 6
Get the color images Page: 6
Conventions used Page: 6
Get in touch Page: 6
Share Your Thoughts Page: 6
Section 1: Automated Testing – A General Overview Page: 7
Chapter 1: Introduction to Automated Testing Page: 8
Why automated testing? Page: 8
Why not? Page: 9
Why yes? Page: 9
Some more arguments Page: 10
Silver bullet? Page: 11
When to use automated testing? Page: 11
After go-live bug fixing Page: 11
Buggy code Page: 11
Frequently modified code Page: 11
Business-critical code being changed Page: 11
Refactoring existing code Page: 11
New feature development Page: 11
Microsoft updates Page: 12
What is automated testing? Page: 12
Some more notes on automated tests Page: 12
Summary Page: 12
Chapter 2: Test Automation and Test-Driven Development Page: 13
TA versus TDD Page: 13
What is TDD? Page: 13
Only two rules to the game Page: 13
TDD – the red-green-refactor mantra Page: 13
TDD – taking small steps Page: 14
TDD – the benefits Page: 14
TDD and Microsoft Dynamics 365 Business Central Page: 14
Is TDD in Business Central possible? Page: 14
Don't know how to start? Page: 15
TDD in Business Central – by example Page: 15
TDD – all the way? Page: 18
TDD – inside-out or outside-in Page: 18
Summary Page: 18
Further reading Page: 19
Section 2:Automated Testing in Microsoft Dynamics 365 Business Central Page: 20
Chapter 3: The Testability Framework Page: 21
Technical requirements Page: 21
The five pillars of the testability framework Page: 21
Pillar 1 – Test codeunits and test functions Page: 21
Pillar 2 – The asserterror keyword Page: 22
Pillar 3 – Handler functions Page: 22
Pillar 4 – Test runner and test isolation Page: 23
Pillar 5 – Test pages Page: 25
Summary Page: 26
Chapter 4: The Test Tools, Standard Tests, and Standard Test Libraries Page: 27
Technical requirements Page: 27
Test Tools Page: 27
Adding tests to a test suite Page: 27
Running the tests Page: 28
Standard tests Page: 29
Base Application tests Page: 29
Categorization by FEATURE Page: 30
Standard libraries Page: 30
Finding useful standard helper functions Page: 30
Some generic and very useful standard libraries Page: 31
Summary Page: 32
Section 3:Designing and Building Automated Tests for Microsoft Dynamics 365 Business Central Page: 33
Chapter 5: Test Plan and Test Design Page: 34
No plan, no test Page: 34
Setting up a test plan Page: 34
Break down your application or feature Page: 35
Test case design patterns Page: 35
Four-phase testing Page: 35
Acceptance Test-Driven Development Page: 35
A note on test verification Page: 36
Applying test case design patterns successfully Page: 36
Test data setup design patterns Page: 37
Test fixture, data agnostics, and prebuilt fixture Page: 37
Test fixture and test isolation Page: 38
Shared fixture implementation Page: 38
Fresh fixture implementation Page: 38
Applying test data setup design patterns successfully Page: 38
Using customer wish as test plan Page: 38
And what about unit and functional tests? Page: 39
Test case design pattern and unit tests Page: 40
Functional testing versus integration testing Page: 40
Summary Page: 40
Further reading Page: 40
Chapter 6: From Customer Wish to Test Automation – the Basics Page: 41
Technical requirements Page: 41
From customer wish to test automation Page: 41
Data model Page: 41
Business logic Page: 41
Converting our customer wish into a test plan and test design Page: 42
Test example 1 – a first headless test Page: 43
Customer wish Page: 43
Application code Page: 43
Test code Page: 43
Test execution Page: 46
Test example 2 – a first positive-negative test Page: 46
Test code steps Page: 46
Create a test codeunit Page: 46
Test execution Page: 47
Test example 3 – a first UI test Page: 47
Customer wish Page: 47
Test code Page: 48
Test execution Page: 49
Headless versus UI Page: 49
Summary Page: 49
Chapter 7: From Customer Wish to Test Automation – Next Level Page: 50
Technical requirements Page: 50
Sales documents, customer template, and warehouse shipment Page: 50
Test example 4 – how to set up a shared fixture Page: 50
Customer wish Page: 50
Application code Page: 51
Test Code Page: 51
Test execution Page: 52
Test example 5 – how to parameterize tests Page: 52
Customer wish Page: 52
Application code Page: 52
Test code Page: 53
Test execution Page: 54
A missing scenario? Page: 54
Test example 6 – how to hand over data to UI handlers Page: 55
Customer wish Page: 55
Test code Page: 55
Test execution Page: 56
Summary Page: 56
Chapter 8: From Customer Wish to Test Automation – the TDD way Page: 57
Technical requirements Page: 57
TDD and our test examples Page: 57
Test example 7 – how to refactor your code Page: 57
Smell of duplication 1 Page: 58
Smell of duplication 2 Page: 58
Some more duplications? Page: 59
Refactoring application code, not covered by tests yet Page: 59
Test example 8 – how to test a report Page: 59
Customer wish Page: 59
Step 1 – Take a test from the test list and write the test code Page: 59
Step 2 – Compile test code yielding red as application code is not yet there Page: 60
Step 3 – Add just enough application code Page: 60
Step 4 – Run test seeing it probably fail Page: 60
Step 3 bis – Add just enough application code Page: 60
Step 4 bis – Run test seeing it probably fail Page: 61
Step 5 – Adjust the application code just enough to make it pass Page: 61
Step 6 – Refactor your code and rerun the test to prove all code is still well Page: 61
Test the test Page: 61
Test example 9 – how to test with permissions Page: 62
Step 1 – Take a test from the test list and write the test code Page: 62
Step 2 – Compile test code yielding red as application code is not yet there, and Step 3 – Add just enough application code Page: 63
Step 4 – Run the test seeing it probably fail Page: 63
Step 5 – Adjust application code just enough to make it pass, and Step 6 – Refactor your code and rerun the test to prove all code is still well Page: 63
Step 7 – Move to the next test on the list and repeat from Step 1 Page: 63
Continue the red-green-refactor mantra Page: 63
Some notes on testing permissions and the version of Business Central Page: 64
Summary Page: 65
Section 4:Integrating Automated Tests in Your Daily Development Practice Page: 66
Chapter 9: How to Integrate Test Automation in Daily Development Practice Page: 67
Technical requirements Page: 67
Casting the customer wish into ATDD scenarios Page: 67
ATDD.TestScriptor Page: 67
Learning and improving by taking small steps Page: 70
Making the test tool, and some more, your friend Page: 70
Extending the test tool Page: 70
AL Test Runner Page: 71
Code Coverage Page: 71
Maintaining your test code Page: 72
Organizing your extensions Page: 73
Integrating with the daily build system Page: 73
Using pipelines Page: 73
Or not using pipelines Page: 74
Summary Page: 74
Chapter 10: Getting Business Central Standard Tests Working on Your Code Page: 76
Technical requirements Page: 76
Why use the standard tests? Page: 76
Executing standard tests against your code Page: 76
Executing Tests-VAT Page: 77
What does this tell us? Page: 77
Only selecting tests from Tests-VAT Page: 77
Running tests using pipelines Page: 78
Fixing failing standard tests Page: 78
Attacking the error Page: 78
Fixing the error Page: 79
Running the failing tests again Page: 80
Disabling failing tests Page: 80
Syntax of DisabledTests.json Page: 80
It's all about data Page: 80
Executing and fixing Tests-Fixed Asset Page: 80
Running tests using pipelines Page: 81
Is it all really about data? Page: 81
Summary Page: 81
Section 5:Advanced Topics Page: 82
Chapter 11: How to Construct Complex Scenarios Page: 83
Technical requirements Page: 83
What makes a scenario complex? Page: 83
Data setup Page: 83
Verification Page: 84
End-to-end code execution path Page: 85
Dependencies on other systems Page: 86
Composing complex scenarios Page: 86
Finding common ground – steps 1, 2, 3, and 4 Page: 86
Deconstructing your scenario – steps 1, 2, 3, and 4 Page: 86
Using flowcharts – steps 1 and 3 Page: 86
Using Code Coverage – steps 1 and 3 Page: 87
Using standard helper functions – steps 5, 6, and 7 Page: 87
Creating reusable parts Page: 87
Test example 10 – how to construct an extensive scenario Page: 87
Customer wish Page: 87
Application code Page: 88
Test code Page: 88
Test execution Page: 90
Summary Page: 90
Chapter 12: Writing Testable Code Page: 91
Technical requirements Page: 91
What is testable code? Page: 91
How to make your code testable? Page: 91
Coding techniques Page: 92
Some notes on refactoring your code so it is testable Page: 95
Test example 11 – how to unit test event subscribers' logic Page: 95
Customer wish Page: 95
Application code Page: 95
Test code Page: 96
Test execution Page: 96
Summary Page: 96
Further reading Page: 97
Chapter 13: Testing Incoming and Outgoing Calls Page: 98
Technical requirements Page: 98
Testing incoming calls Page: 98
Technical challenges Page: 98
Examples of standard API tests Page: 100
Testing outgoing calls Page: 100
Test Doubles Page: 100
Replacing a server with a test double – dependency injection Page: 101
Some more notes on mock and mocking Page: 101
Examples of standard tests with test doubles replacing external components Page: 101
Test example 12 – testing incoming calls: Lookup Value API Page: 102
Application code Page: 102
Test scenarios Page: 102
Test Code – [SCENARIO #0200] Get lookup value Page: 102
Test Code – [SCENARIO #0202] Modify lookup value Page: 103
Test preparation Page: 104
Test execution Page: 104
Test example 13 – VAT Registration No. validation Page: 104
Application code Page: 104
Test code Page: 106
Test execution Page: 108
Summary Page: 108
Section 6:Appendix Page: 109
Appendix: Getting Up and Running with Business Central, VS Code, and the GitHub Project Page: 110
Setting up your Business Central environment Page: 110
Setting up Business Central from a product DVD Page: 110
Setting up Business Central in a container Page: 110
The GitHub repository Page: 111
Structure of the GitHub repository Page: 111
Chapter 02 Page: 111
Chapter 03 Page: 111
Excel Sheets Page: 111
Chapter 06 (LookupValue Extension) Page: 111
Chapter 07 (LookupValue Extension) Page: 112
Chapter 08 (LookupValue Extension) Page: 112
Chapter 09 (LookupValue Extension) Page: 112
Chapter 10 (LookupValue Extension) Page: 112
Chapter 11 (LookupValue Extension) Page: 112
Chapter 12 (LookupValue Extension) Page: 112
Chapter 13 (LookupValue Extension) Page: 112
Scripts Page: 112
Chapter 13 (VAT Registration No. Validation) Page: 112
LookupValue Extension Page: 112
Graphics Page: 112
Setting up VS Code Page: 112
VS Code project Page: 112
Notes on the AL code Page: 114
Prefix or suffix Page: 114
Word wrap Page: 114
Why subscribe? Page: 115
Other Books You May Enjoy Page: 115
Packt is searching for authors like you Page: 115
Share Your Thoughts Page: 115
Description:Learn how to write automated tests for Dynamics 365 Business Central and discover how you can implement them in your daily work Key Features Leverage automated testing to advance over traditional manual testing methods Write, design, and implement automated tests Explore various testing frameworks and tools compatible with Microsoft Dynamics 365 Business Central Book Description Dynamics 365 Business Central is a cloud-based SaaS ERP proposition from Microsoft. With development practices becoming more formal, implementing changes or new features is not as simple as it used to be back when Dynamics 365 Business Central was called Navigator, Navision Financials, or Microsoft Business Solutions-Navision, and the call for test automation is increasing. This book will show you how to leverage the testing tools available in Dynamics 365 Business Central to perform automated testing. Starting with a quick introduction to automated testing and test-driven development (TDD), you'll get an overview of test automation in Dynamics 365 Business Central. You'll then learn how to design and build automated tests and explore methods to progress from requirements to application and testing code. Next, you'll find out how you can incorporate your own as well as Microsoft tests into your development practice. With the addition of three new chapters, this second edition covers in detail how to construct complex scenarios, write testable code, and test processes with incoming and outgoing calls. By the end of this book, you'll be able to write your own automated tests for Microsoft Business Central. What you will learn Understand the why and when of automated testing Discover how test-driven development can help to improve automated testing Explore the six pillars of the Testability Framework of Business Central Design and write automated tests for Business Central Make use of standard automated tests and their helper libraries Understand the challenges in testing features that interact with the external world Integrate automated tests into your development practice Who this book is for This book is for consultants, testers, developers, and development managers working with Microsoft Dynamics 365 Business Central. Functional as well as technical development teams will find this book on automated testing techniques useful.
