Testing Ruby With Rspec The Complete Guide

What you'll learn
Master the syntax and structure of RSpec, the most popular Ruby Gem for testing
Utilize test-driven development principles to design and implement clean test specs in Ruby
Explore the wide collection of RSpec matchers available to test your code
Reduce dependencies in your test suite by mocking objects with class and instance doubles
Requirements
Intermediate knowledge of the Ruby programming language (classes, objects, blocks, etc)
Modern version of Ruby (>3.0)
Text editor (VSCode is recommended)
Description
Welcome to Testing Ruby with RSpec: The Complete Guide!This course offers a comprehensive overview of the RSpec testing library for the Ruby programming language. RSpec is the most popular Ruby Gem of all time, with over 300 million downloads to date.If you're new to the topic, testing is the practice of "writing code that confirms that other code works as expected". Tests control for regressions, which are changes to the code that break the program. Tests give you the confidence to refactor existing code because you know that you will honor the original purpose of the code. The benefits of testing extend outside of your codebase. In this course, we'll cover test-driven development (TDD), a methodology in which we write our tests first, before the implementation. Test-driven development often leads to simpler, more decoupled code. Thus, testing can make you a better developer. Tests force you to think critically about the program and its features: the classes, the objects, the methods and more.Testing Ruby with RSpec begins with the RSpec essentials and proceeds to more complex topics including:InstallationProject InitializationTest-Driven Development (TDD)let variablesbefore and after HooksSubjectsShared ExamplesShared ContextBuilt-in MatchersMocks and DoublesInstance DoublesClass DoublesAs a software engineer and consultant who's worked with Ruby for 5+ years, I'm excited to introduce you to the awesome RSpec library, its elegant syntax, and all of its fun quirks.Thanks for checking out the course!
Overview
Section 1: Introduction
Lecture 1 Welcome to RSpec
Lecture 2 About Me
Lecture 3 Unit Tests vs End-to-End (E2E) Tests
Lecture 4 Setup Ruby on macOS Computers
Lecture 5 Setup Ruby on Windows Computers
Lecture 6 Install RSpec
Lecture 7 Install Visual Studio Code for macOS
Lecture 8 Start a Project with rspec --init
Lecture 9 Download Course Files (Optional)
Lecture 10 Test-Driven Development
Lecture 11 The describe Method
Lecture 12 The it Method
Lecture 13 The expect and eq Methods
Lecture 14 Reading Failures
Lecture 15 Making the Specs Pass
Lecture 16 Multiple Examples in Example Group
Lecture 17 Fixing Failing Specs Again
Lecture 18 Reducing Duplication - Before Hooks and Instance Variables
Lecture 19 Reducing Duplication: Helper Methods
Lecture 20 Problems With Mutation
Lecture 21 Reducing Duplication: The let Method
Lecture 22 Custom Error Messages
Lecture 23 The context Method and Nested Describes
Lecture 24 before and after Hooks
Lecture 25 Nested Logic: Hooks
Lecture 26 Nested Logic: Overwriting Let Variables
Section 2: Subjects, Shared Examples, and Shared Context
Lecture 27 Implicit Subject
Lecture 28 Explicit Subject
Lecture 29 described_class
Lecture 30 One-Liner-Example-Syntax
Lecture 31 Shared Examples with include_examples
Lecture 32 Shared Context with include_context
Section 3: Built-In Matchers
Lecture 33 The not_to Method
Lecture 34 Equality Matchers I (eq and eql)
Lecture 35 Equality Matchers II (equal and be)
Lecture 36 Comparison Matchers
Lecture 37 Predicate Matchers
Lecture 38 all Matcher
Lecture 39 be Matcher (Truthy, Falsy and Nil Values)
Lecture 40 change Matcher
Lecture 41 contain_exactly Matcher
Lecture 42 start_with and end_with Matchers
Lecture 43 have_attributes Matcher
Lecture 44 include Matcher
Lecture 45 raise_error Matcher
Lecture 46 respond_to Matcher
Lecture 47 satisfy Matcher
Lecture 48 not_to Method
Lecture 49 Compound Expectations
Section 4: Mocks
Lecture 50 Create a Test Double
Lecture 51 Set up Our Test Movie
Lecture 52 Replacing an Object with a Double
Lecture 53 Receive Counts
Lecture 54 The allow Method
Lecture 55 Matching Arguments
Lecture 56 Instance Doubles
Lecture 57 Class Doubles
Lecture 58 Spies I
Lecture 59 Spies II
Section 5: Conclusion
Lecture 60 Conclusion
Lecture 61 Bonus!
Intermediate Ruby developers interested in upgrading their skill set,Programmers who want to explore the fundamentals of testing and TDD


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https://www.udemy.com/course/testing-ruby-with-rspec/

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