Support PHPUnit 6

tests/Spout/Reader/XLSX/Helper/CellHelperTest.php

@@ -3,11 +3,12 @@
 namespace Box\Spout\Reader\XLSX\Helper;
 
 use Box\Spout\Common\Exception\InvalidArgumentException;
+use PHPUnit\Framework\TestCase;
 
 /**
  * Class CellHelperTest
  */
-class CellHelperTest extends \PHPUnit_Framework_TestCase
+class CellHelperTest extends TestCase
 {
     /**
      * @return array

tests/Spout/Reader/XLSX/Helper/CellValueFormatterTest.php

@@ -5,11 +5,12 @@ namespace Box\Spout\Reader\XLSX\Helper;
 use Box\Spout\Common\Helper\Escaper;
 use Box\Spout\Reader\Exception\InvalidValueException;
 use Box\Spout\Reader\XLSX\Manager\StyleManager;
+use PHPUnit\Framework\TestCase;
 
 /**
  * Class CellValueFormatterTest
  */
-class CellValueFormatterTest extends \PHPUnit_Framework_TestCase
+class CellValueFormatterTest extends TestCase
 {
     /**
      * @return array

tests/Spout/Reader/XLSX/Helper/DateFormatHelperTest.php

@@ -2,10 +2,12 @@
 
 namespace Box\Spout\Reader\XLSX\Helper;
 
+use PHPUnit\Framework\TestCase;
+
 /**
  * Class DateFormatHelperTest
  */
-class DateFormatHelperTest extends \PHPUnit_Framework_TestCase
+class DateFormatHelperTest extends TestCase
 {
     /**
      * @return array

tests/Spout/Reader/XLSX/Manager/SharedStringsCaching/CachingStrategyFactoryTest.php

@@ -3,11 +3,12 @@
 namespace Box\Spout\Reader\XLSX\Manager\SharedStringsCaching;
 
 use Box\Spout\Reader\XLSX\Creator\HelperFactory;
+use PHPUnit\Framework\TestCase;
 
 /**
  * Class CachingStrategyFactoryTest
  */
-class CachingStrategyFactoryTest extends \PHPUnit_Framework_TestCase
+class CachingStrategyFactoryTest extends TestCase
 {
     /**
      * @return array

tests/Spout/Reader/XLSX/Manager/SharedStringsManagerTest.php

@@ -10,11 +10,12 @@ use Box\Spout\Reader\XLSX\Manager\SharedStringsCaching\CachingStrategyFactory;
 use Box\Spout\Reader\XLSX\Manager\SharedStringsCaching\FileBasedStrategy;
 use Box\Spout\Reader\XLSX\Manager\SharedStringsCaching\InMemoryStrategy;
 use Box\Spout\TestUsingResource;
+use PHPUnit\Framework\TestCase;
 
 /**
  * Class SharedStringsManagerTest
  */
-class SharedStringsManagerTest extends \PHPUnit_Framework_TestCase
+class SharedStringsManagerTest extends TestCase
 {
     use TestUsingResource;
 

tests/Spout/Reader/XLSX/Manager/StyleManagerTest.php

@@ -3,11 +3,12 @@
 namespace Box\Spout\Reader\XLSX\Manager;
 
 use Box\Spout\Reader\XLSX\Creator\InternalEntityFactory;
+use PHPUnit\Framework\TestCase;
 
 /**
  * Class StyleManagerTest
  */
-class StyleManagerTest extends \PHPUnit_Framework_TestCase
+class StyleManagerTest extends TestCase
 {
     /**
      * @param array $styleAttributes

tests/Spout/Reader/XLSX/ReaderTest.php

@@ -6,11 +6,12 @@ use Box\Spout\Common\Exception\IOException;
 use Box\Spout\Common\Type;
 use Box\Spout\Reader\Common\Creator\EntityFactory;
 use Box\Spout\TestUsingResource;
+use PHPUnit\Framework\TestCase;
 
 /**
  * Class ReaderTest
  */
-class ReaderTest extends \PHPUnit_Framework_TestCase
+class ReaderTest extends TestCase
 {
     use TestUsingResource;
 

tests/Spout/Reader/XLSX/SheetTest.php

@@ -5,11 +5,12 @@ namespace Box\Spout\Reader\XLSX;
 use Box\Spout\Common\Type;
 use Box\Spout\Reader\Common\Creator\EntityFactory;
 use Box\Spout\TestUsingResource;
+use PHPUnit\Framework\TestCase;
 
 /**
  * Class SheetTest
  */
-class SheetTest extends \PHPUnit_Framework_TestCase
+class SheetTest extends TestCase
 {
     use TestUsingResource;