rspec check array without order

RSpec provides several matchers to check the contents of an array without considering the order. Here is an example of how to use the matchers and their explanations:

Step 1: Import the necessary RSpec matchers.

require 'rspec/expectations'

The rspec/expectations library contains the matchers we need to perform the array checks.

Step 2: Define the array to be tested.

array = [1, 2, 3]

In this example, we have an array with elements [1, 2, 3]. This is the array we want to check.

Step 3: Use the matchers to check the array without order.

expect(array).to match_array([3, 2, 1])

The match_array matcher checks if the elements of the actual array match the elements of the expected array, regardless of their order. In this case, it will pass because [1, 2, 3] and [3, 2, 1] have the same elements.

Step 4: Provide an optional custom failure message.

expect(array).to match_array([3, 2, 1]), "Arrays are not the same"

You can add an optional custom failure message as the second argument of the expect method. This message will be displayed if the expectation fails.

Step 5: Use the negated form of the matcher to check for inequality.

expect(array).not_to match_array([4, 5, 6])

The not_to form of the match_array matcher checks if the elements of the actual array do not match the elements of the expected array. In this case, it will pass because [1, 2, 3] and [4, 5, 6] have different elements.

These steps should help you check the contents of an array without considering the order using RSpec in Ruby.