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  • Book Overview & Buying Testing with f#
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Testing with f#

Testing with f#

By : Mikael Lundin
3.7 (3)
Buy this Book
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Testing with f#

Testing with f#

3.7 (3)
By: Mikael Lundin
Buy this Book

Overview of this book

If you are a developer who wants to test applications using F#, this is the book for you. Basic experience of testing and intermediate experience of functional programming in F# is expected.
Table of Contents (12 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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Conventions
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Reader feedback
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Customer support
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1
1. The Practice of Test Automation
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1. The Practice of Test Automation
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Testing as a practice
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Building trust
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The purpose of testing
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Testing with intent
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Writing tests for regression
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Summary
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2. Writing Testable Code with Functional Programming
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2. Writing Testable Code with Functional Programming
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Purely functional
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Immutability
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Writing testable code
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Expressiveness through functional programming
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Summary
3
3. Setting Up Your Test Environment
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3. Setting Up Your Test Environment
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F# Interactive
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Testing with Visual Studio
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Comparing MSTest, NUnit, and xUnit
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Tools and frameworks
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Executing a test suite outside Visual Studio
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FAKE
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Continuous integration
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Summary
4
4. Unit Testing
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4. Unit Testing
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Structuring your tests
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Arrange, act, assert
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FsUnit
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Unquote
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Testing in isolation
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Finding the abstraction level
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Test doubles
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Dependency injection
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Stubbing with Foq
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Mocking
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Dealing with databases
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Summary
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5. Integration Testing
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5. Integration Testing
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Good integration tests
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Your first integration test
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Setting up and tearing down databases
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Speeding up integration testing
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Testing stored procedures
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Data-driven testing
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Testing web services
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Summary
6
6. Functional Testing
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6. Functional Testing
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Specifications
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Setting up TickSpec
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Web-browser-based testing
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Regression testing
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Summary
7
7. The Controversy of Test Automation
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7. The Controversy of Test Automation
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Bugs or defects
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The cost of quality
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The false security of code coverage
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Test-driven development
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Testing or fact-checking
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Summary
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8. Testing in an Agile Context
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8. Testing in an Agile Context
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Building a bridge or tending to a garden
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The broken iron triangle
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Visualizing metrics
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The Kanban board
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Predictability
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Testing in agile
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Summary
9
9. Test Smells
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9. Test Smells
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Tests that break upon refactoring
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Tests that break occasionally
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Tests that never break
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Tests that are too complex
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Tests that require excessive setup
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Developers not writing tests
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Summary
10
10. The Ten Commandments of Test Automation
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10. The Ten Commandments of Test Automation
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Testing behavior, not implementation
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Using ubiquitous language in your test name
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Asserting only one thing in your test
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Don't mock the Mockingbird
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Always refactor your SUT
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Your test should never be more than 10 lines of code
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Always test in isolation
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Controlling your dependencies
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Your test is a ninja
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The test is not complex
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Summary
11
Index
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Index

Summary

Functional programming is very powerful as it leads to very terse programs with high-quality and low number of faults. This is because good functional code doesn't have any side effects—a place where most of the imperative object-oriented code has its bugs.

In this chapter, we've been looking at functional concepts that make it easier to write good code that doesn't cause side effects and has a low number of bugs, but also code that is easier to test.

The next chapter we'll reach into the toolset that exists for programs written in F# and what it takes to get started with functional testing.

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Tech Concepts
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Programming languages
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