Tag: testing
Customizing Test Doubles in RSpec
What are Test Doubles? Before we dive in, let’s quickly recap what test doubles are. Imagine you’re testing a Course class that relies on a Database class to save course information. You don’t want your tests to actually interact with a real database, as that would make them slow and unreliable. Instead, you can use…
Understanding Test Doubles in Ruby
Why Use Test Doubles? Imagine you’re building an LMS. You have a Course class that relies on a Database class to store information. When testing the Course class, you don’t want to be bogged down by the complexities of the real database. That’s where test doubles come in! Here’s why they’re so useful: Types of…
RSpec Matchers Deep Dive
What are Matchers? In RSpec, you use expect blocks to make assertions about your code. Matchers are the part of the expect block that specifies what you’re expecting. They’re like the verbs in your testing sentences. Categories of Matchers We can broadly categorize matchers into three groups: Let’s dive into each category! 1. Primitive Matchers:…
Understanding RSpec Expectations: A Beginner’s Guide
Why Do We Need Expectations? Imagine you’re building a Learning Management System (LMS). You might have a class that handles student enrollments. How do you know if your enrollment code is working correctly? You could manually test it, but that’s time-consuming and prone to errors. That’s where rspec-expectations comes in. It allows you to write…
RSpec Metadata: Powering Your Tests
Why Metadata Matters Imagine you’re building a Learning Management System (LMS). You have tests for user registration, course creation, and grading. Some tests might be quick, while others might involve complex database interactions. You want to run only the tests you need, when you need them. This is where metadata comes in. Metadata is like…
RSpec for Beginners: Structuring Your Tests
Well-organized tests are easier to read, understand, and maintain. This lesson will guide you through the fundamental concepts of organizing your RSpec tests, focusing on example groups, shared setup code, and metadata. Why Structure Matters Imagine trying to find a specific book in a library where all the books are just piled up randomly. It…
RSpec for Beginners: Key Practices and Techniques
Key Practices for Effective Testing 1. Logical Structuring with describe and context Think of describe and context as ways to organize your tests into logical groups. Example: This structure makes it easy to understand what each test is about and where to find it. 2. Clear Expectations: Testing at the Right Level Each test should…
RSpec for Beginners: Testing Your Ruby Code
Why Testing Matters Before diving into RSpec, let’s understand why testing is so crucial: Introducing RSpec RSpec is a testing framework that helps you write clear and expressive tests. It focuses on behavior-driven development (BDD), which means you describe the behavior of your code rather than just testing individual functions. RSpec is made up of…