What are Minitest assertions and how do I use them?

What are Minitest assertions and how do I use them?

Minitest assertions are methods used in Ruby's Minitest framework to verify that your code behaves as expected. They help you write tests that check for specific conditions.

Can you give me some examples of common assertions?

Sure! Some common Minitest assertions include assert_equal, assert_nil, and assert_includes. For example, assert_equal(expected, actual) checks if the expected value matches the actual value.

How do I write a test using these assertions?

To write a test, you create a class that inherits from Minitest::Test and define methods that start with test_. Inside these methods, you can use assertions to check your code.

Can I use Minitest with Rails?

Yes, Minitest is included with Rails by default, so you can easily write tests for your Rails applications using Minitest assertions.