merged branch Tobion/console-exit-code (PR #8080)

This PR was merged into the 2.1 branch.

Discussion
----------

[Console] fix and refactor exit code handling

Split of #8038

Commits
-------

5c317b7 [Console] fix and refactor exit code handling

src/Symfony/Component/Console/Application.php

@@ -115,7 +115,7 @@ class Application
             }
             $statusCode = $e->getCode();
 
-            $statusCode = is_numeric($statusCode) && $statusCode ? $statusCode : 1;
+            $statusCode = $statusCode ? (is_numeric($statusCode) ? (int) $statusCode : 1) : 0;
         }
 
         if ($this->autoExit) {
@@ -192,7 +192,7 @@ class Application
         $statusCode = $command->run($input, $output);
         $this->runningCommand = null;
 
-        return is_numeric($statusCode) ? $statusCode : 0;
+        return $statusCode;
     }
 
     /**

src/Symfony/Component/Console/Command/Command.php

@@ -238,7 +238,7 @@ class Command
             $statusCode = $this->execute($input, $output);
         }
 
-        return is_numeric($statusCode) ? $statusCode : 0;
+        return is_numeric($statusCode) ? (int) $statusCode : 0;
     }
 
     /**

src/Symfony/Component/Console/Tests/ApplicationTest.php

@@ -501,6 +501,21 @@ class ApplicationTest extends \PHPUnit_Framework_TestCase
         $this->assertSame('called'.PHP_EOL, $tester->getDisplay(), '->run() does not call interact() if -n is passed');
     }
 
+    public function testRunReturnsIntegerExitCode()
+    {
+        $exception = new \Exception('', 4);
+
+        $application = $this->getMock('Symfony\Component\Console\Application', array('doRun'));
+        $application->setAutoExit(false);
+        $application->expects($this->once())
+             ->method('doRun')
+             ->will($this->throwException($exception));
+
+        $exitCode = $application->run(new ArrayInput(array()), new NullOutput());
+
+        $this->assertSame(4, $exitCode, '->run() returns integer exit code extracted from raised exception');
+    }
+
     /**
      * @expectedException \LogicException
      * @dataProvider getAddingAlreadySetDefinitionElementData

src/Symfony/Component/Console/Tests/Command/CommandTest.php

@@ -221,6 +221,20 @@ class CommandTest extends \PHPUnit_Framework_TestCase
         }
     }
 
+    public function testRunReturnsIntegerExitCode()
+    {
+        $command = new \TestCommand();
+        $exitCode = $command->run(new StringInput(''), new NullOutput());
+        $this->assertSame(0, $exitCode, '->run() returns integer exit code (treats null as 0)');
+
+        $command = $this->getMock('TestCommand', array('execute'));
+        $command->expects($this->once())
+             ->method('execute')
+             ->will($this->returnValue('2.3'));
+        $exitCode = $command->run(new StringInput(''), new NullOutput());
+        $this->assertSame(2, $exitCode, '->run() returns integer exit code (casts numeric to int)');
+    }
+
     public function testRunReturnsAlwaysInteger()
     {
         $command = new \TestCommand();