Updated PHPUnit namespaces

Author: peterrehm

Tests/Encoder/ChainDecoderTest.php

@@ -11,9 +11,10 @@
 
 namespace Symfony\Component\Serializer\Tests\Encoder;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\Serializer\Encoder\ChainDecoder;
 
-class ChainDecoderTest extends \PHPUnit_Framework_TestCase
+class ChainDecoderTest extends TestCase
 {
     const FORMAT_1 = 'format1';
     const FORMAT_2 = 'format2';

Tests/Encoder/ChainEncoderTest.php

@@ -11,10 +11,11 @@
 
 namespace Symfony\Component\Serializer\Tests\Encoder;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\Serializer\Encoder\ChainEncoder;
 use Symfony\Component\Serializer\Encoder\NormalizationAwareInterface;
 
-class ChainEncoderTest extends \PHPUnit_Framework_TestCase
+class ChainEncoderTest extends TestCase
 {
     const FORMAT_1 = 'format1';
     const FORMAT_2 = 'format2';

Tests/Encoder/JsonDecodeTest.php

@@ -11,10 +11,11 @@
 
 namespace Symfony\Component\Serializer\Tests\Encoder;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\Serializer\Encoder\JsonDecode;
 use Symfony\Component\Serializer\Encoder\JsonEncoder;
 
-class JsonDecodeTest extends \PHPUnit_Framework_TestCase
+class JsonDecodeTest extends TestCase
 {
     /** @var \Symfony\Component\Serializer\Encoder\JsonDecode */
     private $decode;

Tests/Encoder/JsonEncodeTest.php

@@ -11,10 +11,11 @@
 
 namespace Symfony\Component\Serializer\Tests\Encoder;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\Serializer\Encoder\JsonEncode;
 use Symfony\Component\Serializer\Encoder\JsonEncoder;
 
-class JsonEncodeTest extends \PHPUnit_Framework_TestCase
+class JsonEncodeTest extends TestCase
 {
     private $encoder;
 

Tests/Normalizer/ArrayDenormalizerTest.php

@@ -11,10 +11,11 @@
 
 namespace Symfony\Component\Serializer\Tests\Normalizer;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Component\Serializer\Normalizer\ArrayDenormalizer;
 use Symfony\Component\Serializer\SerializerInterface;
 
-class ArrayDenormalizerTest extends \PHPUnit_Framework_TestCase
+class ArrayDenormalizerTest extends TestCase
 {
     /**
      * @var ArrayDenormalizer