Add test for matching transition state.
user
```ruby
# encoding: utf-8

require 'spec_helper'

RSpec.describe FiniteMachine::Transition, '.matches?' do
  let(:machine) { double(:machine) }

  it "matches from state" do
    states = {:green => :red}
    transition = described_class.new(machine, states: states)

    expect(transition.matches?(:green)).to eq(true)
    expect(transition.matches?(:red)).to eq(false)
  end

  it "matches any state" do
    states = {:any => :red}
    transition = described_class.new(machine, states: states)

    expect(transition.matches?(:green)).to eq(true)
  end
end

```
assistant