Improve assertions

Author: carusogabriel

Tests/FinderTest.php

@@ -12,7 +12,6 @@
 namespace Symfony\Component\Finder\Tests;
 
 use Symfony\Component\Finder\Adapter\AdapterInterface;
-use Symfony\Component\Finder\Adapter\GnuFindAdapter;
 use Symfony\Component\Finder\Adapter\PhpAdapter;
 use Symfony\Component\Finder\Finder;
 
@@ -610,15 +609,15 @@ public function testAdapterSelection()
     {
         // test that by default, PhpAdapter is selected
         $adapters = Finder::create()->getAdapters();
-        $this->assertTrue($adapters[0] instanceof PhpAdapter);
+        $this->assertInstanceOf('Symfony\Component\Finder\Adapter\PhpAdapter', $adapters[0]);
 
         // test another adapter selection
         $adapters = Finder::create()->setAdapter('gnu_find')->getAdapters();
-        $this->assertTrue($adapters[0] instanceof GnuFindAdapter);
+        $this->assertInstanceOf('Symfony\Component\Finder\Adapter\GnuFindAdapter', $adapters[0]);
 
         // test that useBestAdapter method removes selection
         $adapters = Finder::create()->useBestAdapter()->getAdapters();
-        $this->assertFalse($adapters[0] instanceof PhpAdapter);
+        $this->assertNotInstanceOf('Symfony\Component\Finder\Adapter\PhpAdapter', $adapters[0]);
     }
 
     public function getTestPathData()