Added the ability to configure Unix socket binding

[gcelestine]

No description provided.

[mathieuboniface]

It seems you forget the ::params prefix on the both parameters default values.
This may be the reason why CI fail with Puppet >= 4.0

@gcelestine can you fix this ?

[gcelestine]

issue fixed and all tests passed succesfully

[petems]

@gcelestine Was just about to implement this, so here's some specs you can add for test coverage 😄

  describe 'with parameter unixsocket' do
    let (:params) {
      {
        :unixsocket => '/tmp/redis.sock'
      }
    }

    it { should contain_file('/etc/redis/redis.conf.puppet').with(
        'content' => /unixsocket.*\/tmp\/redis.sock/
      )
    }
  end

  describe 'with parameter unixsocketperm' do
    let (:params) {
      {
        :unixsocketperm => '777'
      }
    }

    it { should contain_file('/etc/redis/redis.conf.puppet').with(
        'content' => /unixsocketperm.*777/
      )
    }
  end

[petems]

@arioch can we get a merge on this? Need it for a project I'm doing 😸

[arioch]

@gcelestine my apologies for the long wait. Excellent stuff. 👍
@petems If you agree to send me a PR with your test coverage. 😉