Update the hiredis test suite

Author: byroot

Gemfile

@@ -9,3 +9,4 @@ gem 'rake'
 gem 'rubocop', '~> 1.25.1'
 gem 'mocha'
 gem 'redis-client', github: 'redis-rb/redis-client' # RESP2 supportnot yet released
+gem 'hiredis-client', github: 'redis-rb/redis-client' # RESP2 supportnot yet released

test/helper.rb

@@ -17,6 +17,10 @@
 require_relative "support/redis_mock"
 require_relative 'support/cluster/orchestrator'
 
+if ENV["DRIVER"] == "hiredis"
+  require "hiredis-client"
+end
+
 PORT        = 6381
 DB          = 15
 TIMEOUT     = Float(ENV['TIMEOUT'] || 1.0)