# Verify Configuration Locally

Before pushing to GitHub, validate your configuration locally on a virtual machine running Ubuntu 22.04 LTS.

These commands assume your development environment runs on MacOS and uses homebrew as a package manager.

# 1. Start Vagrant virtual machine

From the root of project directory, create and log in to a virtual machine. Firstly, install vagrant on your local machine.

brew install virtualbox vagrant
touch Vagrantfile

Then, create Vagrantfile to configure your virtual machine from the example below.

Vagrantfile
Vagrant.configure("2") do |config|
  config.vm.box = "turbotest/ubuntu_2204_LTS"

  config.vm.provider "virtualbox" do |vb|
    vb.cpus = 4
    vb.memory = "5120"
  end
end

Next, create the virtual machine running Ubuntu 22.04 LTS and log in with these commands:

# Don't forget to run these commands from the root of your project directory
# cd $REPOSITORY_LOCAL_DIRECTORY
vagrant up
vagrant ssh

# 2. Verify `base_image` and `before_test_run` commands

Then, inside the virtual machine, verify the base_image and before_test_run commands. You can copy the commands from your .turbo_test.toml file or the above sample configurations. For example:

.turbo_test.toml
[base_image]
commands = '''
sudo apt update -y
sudo apt-get install cmake -y
'''

[before_test_run]
commands = '''
sudo systemctl start postgresql@16-main.service
bundle install
'''

Don't forget to set environment variables.

Any environment variables set in the .turbo_test.toml env configuration should also be set in the vagrant virtual machine.

# Change to project root directory mounted from host
cd /vagrant

# Set environment variables from .turbo_test.toml env configuration
export RAILS_ENV=test

# Execute base_image commands
sudo apt update -y
sudo apt-get install cmake -y

# Execute before_test_run commands
sudo systemctl start postgresql@16-main.service
bundle install

# 3. Verify unit test execution

Now, you should be able to execute a unit test after your base_image and before_test_run commands complete successfully.

For example, from the following configuration file:

.turbo_test.toml
[test_run.default]
command = "bundle exec rails test"
files = ["test/**/*_test.rb"]

Execute this unit test:

bundle exec rails test test/models/user_test.rb

# 4. Verify `test_run` test file glob

Lastly, check the UNIX file glob for your test runs. Give the following configuration file:

.turbo_test.toml
[test_run.default]
command = "bundle exec rails test"
files = ["test/**/*_test.rb"]

The output of this command should be a list of all your test files.

Vagrant virtual machine
cd /vagrant
ls -1 test/**/*_test.rb

After successfully validating your configuration locally, verify your configuration on TURBO TEST.