Updated tests to use new version PHPUnit

Author: mrwogu

tests/integration/TestCase.php

@@ -5,7 +5,7 @@
 use OpenStack\Common\Resource\Deletable;
 use Psr\Log\LoggerInterface;
 
-abstract class TestCase extends \PHPUnit_Framework_TestCase implements TestInterface
+abstract class TestCase extends \PHPUnit\Framework\TestCase implements TestInterface
 {
     protected $logger;
     private $startPoint;

tests/unit/Common/Api/OperationTest.php

@@ -6,7 +6,7 @@
 use OpenStack\Common\Api\Parameter;
 use OpenStack\Test\Fixtures\ComputeV2Api;
 
-class OperationTest extends \PHPUnit_Framework_TestCase
+class OperationTest extends \PHPUnit\Framework\TestCase
 {
     private $operation;
 

tests/unit/Common/Api/ParameterTest.php

@@ -5,7 +5,7 @@
 use OpenStack\Common\Api\Parameter;
 use OpenStack\Test\Fixtures\ComputeV2Api;
 
-class ParameterTest extends \PHPUnit_Framework_TestCase
+class ParameterTest extends \PHPUnit\Framework\TestCase
 {
     private $param;
     private $data;

tests/unit/Common/Error/BuilderTest.php

@@ -13,7 +13,7 @@
 use OpenStack\Common\Error\Builder;
 use OpenStack\Common\Error\UserInputError;
 
-class BuilderTest extends \PHPUnit_Framework_TestCase
+class BuilderTest extends \PHPUnit\Framework\TestCase
 {
     private $builder;
     private $client;

tests/unit/Common/JsonPathTest.php

@@ -4,7 +4,7 @@
 
 use OpenStack\Common\JsonPath;
 
-class JsonPathTest extends \PHPUnit_Framework_TestCase
+class JsonPathTest extends \PHPUnit\Framework\TestCase
 {
     private $jsonPath;
 

tests/unit/Common/Transport/JsonSerializerTest.php

@@ -8,7 +8,7 @@
 use OpenStack\Common\Resource\OperatorResource;
 use OpenStack\Common\Transport\JsonSerializer;
 
-class JsonSerializerTest extends \PHPUnit_Framework_TestCase
+class JsonSerializerTest extends \PHPUnit\Framework\TestCase
 {
     /** @var JsonSerializer */
     private $serializer;

tests/unit/TestCase.php

@@ -8,7 +8,7 @@
 use GuzzleHttp\Psr7\Response;
 use Prophecy\Argument;
 
-abstract class TestCase extends \PHPUnit_Framework_TestCase
+abstract class TestCase extends \PHPUnit\Framework\TestCase
 {
     /** @var \Prophecy\Prophecy\ObjectProphecy */
     protected $client;