Rails 7.1: Matching Exception Messages Made Easier

The latest version of Rails, 7.1, introduces a new feature that allows developers to easily match exception messages to the assert_raises assertion. This improvement simplifies the process of checking if an error and its message are reported by the application or if they match with a custom error message.

Previously, developers had to store the exception occurring for the provided code and then check it using assert_match, which could spread over multiple lines. With the new update, developers can now achieve the same result in a much cleaner way, using just assert_raises.

Here's an example of how to use the updated functionality:

require 'test_helper'

class ExampleTest < ActiveSupport::TestCase
  def test_exception_message
    assert_raises(RuntimeError, "Custom error message") do
      # Code that raises an exception
    end
  end
end

By leveraging this new feature, developers can streamline their testing process and improve code readability.

If you're working on a Ruby on Rails or React project and need assistance, don't hesitate to reach out for help. And if you found this post helpful, you might also enjoy reading our other articles, such as "The Ultimate Guide to Gemfile and Gemfile.lock" or "Rails 6 - Action Mailbox tryout."

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