```ruby
require 'spec_helper'

describe KeenCli::CLI do
  it 'prints help by default' do
    _, options = KeenCli::CLI.start
    expect(_).to be_empty
  end

  it 'prints version info if -v is used' do
    _, options = KeenCli::CLI.start(%w[-v])
    expect(_).to match /version/
  end

  describe 'project:describe' do
    it 'gets the project' do
      _, options = KeenCli::CLI.start(%w[project:describe])
      expect(_).to match /\/3.0\/projects\/#{Keen.project_id}\/events/
    end
  end
end
```

Add test for project collections
user
```ruby
require 'spec_helper'

describe KeenCli::CLI do
  it 'prints help by default' do
    _, options = KeenCli::CLI.start
    expect(_).to be_empty
  end

  it 'prints version info if -v is used' do
    _, options = KeenCli::CLI.start(%w[-v])
    expect(_).to match /version/
  end

  describe 'project:describe' do
    it 'gets the project' do
      _, options = KeenCli::CLI.start(%w[project:describe])
      expect(_).to match /\/3.0\/projects\/#{Keen.project_id}\/events/
    end
  end

  describe 'project:collections' do
    it 'prints the project\'s collections' do
      _, options = KeenCli::CLI.start(%w[project:collections])
      expect(_["properties"]["keen.timestamp"]).to eq 'datetime'
    end
  end
end
```
assistant