[tests] Improve the basic framework of our test suite.

We now have a base test case class for Predis (namely PredisTestCase)
grouping various commonly used utility methods shared by all of the
tests in the suite, greatly improving reusability.

tests/PHPUnit/ConnectionTestCase.php

@@ -11,14 +11,13 @@
 
 namespace Predis\Connection;
 
-use PHPUnit_Framework_TestCase as StandardTestCase;
-
+use PredisTestCase;
 use Predis\Profile;
 
 /**
  * @group realm-connection
  */
-abstract class ConnectionTestCase extends StandardTestCase
+abstract class ConnectionTestCase extends PredisTestCase
 {
     /**
      * @group disconnected
@@ -322,31 +321,6 @@ abstract class ConnectionTestCase extends StandardTestCase
         );
     }
 
-    /**
-     * Returns a new instance of connection parameters.
-     *
-     * @param array $additional Additional connection parameters.
-     * @return ConnectionParameters Default connection parameters.
-     */
-    protected function getParameters($additional = array())
-    {
-        $parameters = array_merge($this->getDefaultParametersArray(), $additional);
-        $parameters = new ConnectionParameters($parameters);
-
-        return $parameters;
-    }
-
-    /**
-     * Returns a new instance of server profile.
-     *
-     * @param array $additional Additional connection parameters.
-     * @return Profile\ProfileInterface
-     */
-    protected function getProfile($version = null)
-    {
-        return Profile\Factory::get($version ?: REDIS_SERVER_VERSION);
-    }
-
     /**
      * Returns a new instance of a connection instance.
      *