```ruby
require 'test_helper'

describe "Redis::RedisVersion" do
  def setup
    @store  = Redis::Store.new
  end

  def teardown
    @store.quit
  end

  describe '#redis_version' do
    it 'returns redis version' do
      @store.redis_version.to_s.must_match(/^\d{1}\.\d{1}\.\d{1}$/)
    end
  end

  describe '#supports_redis_version?' do
    it 'returns true if redis version is greater or equal to required version' do
      @store.stubs(:redis_version).returns('2.8.9')
      @store.supports_redis_version?('2.8.0').must_equal(true)
      @store.supports_redis_version?('2.8.9').must_equal(true)
      @store.supports_redis_version?('2.9.0').must_equal(false)
      @store.supports_redis_version?('3.0.0').must_equal(false)
    end
  end
end

```

Handle minor and patch version correctly as they may be multiple digits
user
```ruby
require 'test_helper'

describe "Redis::RedisVersion" do
  def setup
    @store  = Redis::Store.new
  end

  def teardown
    @store.quit
  end

  describe '#redis_version' do
    it 'returns redis version' do
      @store.redis_version.to_s.must_match(/^\d{1}\.\d{1,}\.\d{1,}$/)
    end
  end

  describe '#supports_redis_version?' do
    it 'returns true if redis version is greater or equal to required version' do
      @store.stubs(:redis_version).returns('2.8.19')
      @store.supports_redis_version?('2.6.0').must_equal(true)
      @store.supports_redis_version?('2.8.19').must_equal(true)
      @store.supports_redis_version?('2.8.20').must_equal(false)
      @store.supports_redis_version?('2.9.0').must_equal(false)
      @store.supports_redis_version?('3.0.0').must_equal(false)
    end
  end
end

```
assistant