Use ::class keyword when possible

Author: fabpot

Tests/ApplicationTest.php

@@ -777,7 +777,7 @@ public function testSetCatchExceptions()
             $tester->run(['command' => 'foo'], ['decorated' => false]);
             $this->fail('->setCatchExceptions() sets the catch exception flag');
         } catch (\Exception $e) {
-            $this->assertInstanceOf('\Exception', $e, '->setCatchExceptions() sets the catch exception flag');
+            $this->assertInstanceOf(\Exception::class, $e, '->setCatchExceptions() sets the catch exception flag');
             $this->assertEquals('Command "foo" is not defined.', $e->getMessage(), '->setCatchExceptions() sets the catch exception flag');
         }
     }

Tests/Formatter/OutputFormatterStyleTest.php

@@ -85,15 +85,15 @@ public function testOptions()
             $style->setOption('foo');
             $this->fail('->setOption() throws an \InvalidArgumentException when the option does not exist in the available options');
         } catch (\Exception $e) {
-            $this->assertInstanceOf('\InvalidArgumentException', $e, '->setOption() throws an \InvalidArgumentException when the option does not exist in the available options');
+            $this->assertInstanceOf(\InvalidArgumentException::class, $e, '->setOption() throws an \InvalidArgumentException when the option does not exist in the available options');
             $this->assertStringContainsString('Invalid option specified: "foo"', $e->getMessage(), '->setOption() throws an \InvalidArgumentException when the option does not exist in the available options');
         }
 
         try {
             $style->unsetOption('foo');
             $this->fail('->unsetOption() throws an \InvalidArgumentException when the option does not exist in the available options');
         } catch (\Exception $e) {
-            $this->assertInstanceOf('\InvalidArgumentException', $e, '->unsetOption() throws an \InvalidArgumentException when the option does not exist in the available options');
+            $this->assertInstanceOf(\InvalidArgumentException::class, $e, '->unsetOption() throws an \InvalidArgumentException when the option does not exist in the available options');
             $this->assertStringContainsString('Invalid option specified: "foo"', $e->getMessage(), '->unsetOption() throws an \InvalidArgumentException when the option does not exist in the available options');
         }
     }

Tests/Helper/HelperSetTest.php

@@ -13,6 +13,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Helper\HelperInterface;
 use Symfony\Component\Console\Helper\HelperSet;
 
 class HelperSetTest extends TestCase
@@ -66,7 +67,7 @@ public function testGet()
             $helperset->get('foo');
             $this->fail('->get() throws InvalidArgumentException when helper not found');
         } catch (\Exception $e) {
-            $this->assertInstanceOf('\InvalidArgumentException', $e, '->get() throws InvalidArgumentException when helper not found');
+            $this->assertInstanceOf(\InvalidArgumentException::class, $e, '->get() throws InvalidArgumentException when helper not found');
             $this->assertInstanceOf('Symfony\Component\Console\Exception\ExceptionInterface', $e, '->get() throws domain specific exception when helper not found');
             $this->assertStringContainsString('The helper "foo" is not defined.', $e->getMessage(), '->get() throws InvalidArgumentException when helper not found');
         }
@@ -111,7 +112,7 @@ public function testIteration()
 
     private function getGenericMockHelper($name, HelperSet $helperset = null)
     {
-        $mock_helper = $this->getMockBuilder('\Symfony\Component\Console\Helper\HelperInterface')->getMock();
+        $mock_helper = $this->getMockBuilder(HelperInterface::class)->getMock();
         $mock_helper->expects($this->any())
             ->method('getName')
             ->willReturn($name);

Tests/Helper/QuestionHelperTest.php

@@ -17,6 +17,7 @@
 use Symfony\Component\Console\Helper\FormatterHelper;
 use Symfony\Component\Console\Helper\HelperSet;
 use Symfony\Component\Console\Helper\QuestionHelper;
+use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Output\StreamOutput;
 use Symfony\Component\Console\Question\ChoiceQuestion;
 use Symfony\Component\Console\Question\ConfirmationQuestion;
@@ -684,7 +685,7 @@ public function testChoiceOutputFormattingQuestionForUtf8Keys()
             '  [<info>żółw  </info>] bar',
             '  [<info>łabądź</info>] baz',
         ];
-        $output = $this->getMockBuilder('\Symfony\Component\Console\Output\OutputInterface')->getMock();
+        $output = $this->getMockBuilder(OutputInterface::class)->getMock();
         $output->method('getFormatter')->willReturn(new OutputFormatter());
 
         $dialog = new QuestionHelper();