How can I test methods in Ruby?

How can I test methods in Ruby?

You can use testing frameworks like RSpec or Minitest to test methods in Ruby. Would you like an example?

Yes, please provide an example using RSpec.

Sure! Here's a simple example:

# my_class.rb
class MyClass
  def add(a, b)
    a + b
  end
end

# my_class_spec.rb
require 'rspec'
require_relative 'my_class'

RSpec.describe MyClass do
  it 'adds two numbers' do
    my_class = MyClass.new
    expect(my_class.add(2, 3)).to eq(5)
  end
end

This tests the add method to ensure it returns the correct sum.

What if I want to test for edge cases?

You can add more test cases in your RSpec file to cover edge cases. For example:

it 'returns 0 when adding 0 to a number' do
  expect(my_class.add(0, 5)).to eq(5)
end

it 'handles negative numbers' do
  expect(my_class.add(-1, -1)).to eq(-2)
end

This way, you ensure your method behaves correctly in various scenarios.