Fundamentals of Testing Using Rails/

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Bypassing Rails in Minitest

Bypassing Rails in Minitest

Learn to bypass rails in Minitest.

We'll cover the following...

Minitest bypassing Rails for speed

The same Rails-bypassing test technique works in Minitest, but there are some minor differences based on how the RSpec executable works versus the way Minitest works.

In Minitest, the active_record_test_helper looks like this:

# SQLite. Versions 3.8.0 and up are supported.
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
#
default: &default
  adapter: sqlite3
  database: db/development.sqlite3
  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
  timeout: 5000

development:
  <<: *default
  database: db/development.sqlite3

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  pool: 5
  database: db/test.sqlite3

production:
  <<: *default
  database: db/production.sqlite3
Adding active_record_test_helper.rb file in /test directory

This is based on a Minitest version from Robert Evans on GitHub.

The basic setup is ...