Fix test file names

Author: Chi-teck

tests/dcg/Generator/Drupal_8/Service/PathProcessorTest.php

@@ -7,7 +7,7 @@
 /**
  * Test for d8:service:path-processor command.
  */
-class PathProcessorTestTest extends GeneratorBaseTest {
+class PathProcessorTest extends GeneratorBaseTest {
 
   protected $class = 'Drupal_8\Service\PathProcessor';
 

tests/dcg/Generator/Drupal_8/Yml/Links/TaskLinksTest.php

@@ -7,7 +7,7 @@
 /**
  * Test for d8:yml:links:task command.
  */
-class TaskTest extends GeneratorBaseTest {
+class TaskLinksTest extends GeneratorBaseTest {
 
   protected $class = 'Drupal_8\Yml\Links\Task';
 

tests/dcg/GeneratorDiscoveryTest.php

@@ -10,7 +10,7 @@
 /**
  * Test for GeneratorsDiscovery.
  */
-class GeneratorsDiscoveryTest extends TestCase {
+class GeneratorDiscoveryTest extends TestCase {
 
   const TOTAL_GENERATORS = 15;