src/libs/symfony/console/Tests/ApplicationTest.php
<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Tests;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Console\Application;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\CommandLoader\FactoryCommandLoader;
use Symfony\Component\Console\DependencyInjection\AddConsoleCommandPass;
use Symfony\Component\Console\Helper\HelperSet;
use Symfony\Component\Console\Helper\FormatterHelper;
use Symfony\Component\Console\Input\ArgvInput;
use Symfony\Component\Console\Input\ArrayInput;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputDefinition;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\NullOutput;
use Symfony\Component\Console\Output\Output;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Output\StreamOutput;
use Symfony\Component\Console\Tester\ApplicationTester;
use Symfony\Component\Console\Event\ConsoleCommandEvent;
use Symfony\Component\Console\Event\ConsoleErrorEvent;
use Symfony\Component\Console\Event\ConsoleExceptionEvent;
use Symfony\Component\Console\Event\ConsoleTerminateEvent;
use Symfony\Component\Console\Exception\CommandNotFoundException;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\EventDispatcher\EventDispatcher;

class ApplicationTest extends TestCase
{
    protected static $fixturesPath;

    public static function setUpBeforeClass()
    {
        self::$fixturesPath = realpath(__DIR__.'/Fixtures/');
        require_once self::$fixturesPath.'/FooCommand.php';
        require_once self::$fixturesPath.'/FooOptCommand.php';
        require_once self::$fixturesPath.'/Foo1Command.php';
        require_once self::$fixturesPath.'/Foo2Command.php';
        require_once self::$fixturesPath.'/Foo3Command.php';
        require_once self::$fixturesPath.'/Foo4Command.php';
        require_once self::$fixturesPath.'/Foo5Command.php';
        require_once self::$fixturesPath.'/FooSameCaseUppercaseCommand.php';
        require_once self::$fixturesPath.'/FooSameCaseLowercaseCommand.php';
        require_once self::$fixturesPath.'/FoobarCommand.php';
        require_once self::$fixturesPath.'/BarBucCommand.php';
        require_once self::$fixturesPath.'/FooSubnamespaced1Command.php';
        require_once self::$fixturesPath.'/FooSubnamespaced2Command.php';
        require_once self::$fixturesPath.'/TestTiti.php';
        require_once self::$fixturesPath.'/TestToto.php';
    }

    protected function normalizeLineBreaks($text)
    {
        return str_replace(PHP_EOL, "\n", $text);
    }

    /**
     * Replaces the dynamic placeholders of the command help text with a static version.
     * The placeholder %command.full_name% includes the script path that is not predictable
     * and can not be tested against.
     */
    protected function ensureStaticCommandHelp(Application $application)
    {
        foreach ($application->all() as $command) {
            $command->setHelp(str_replace('%command.full_name%', 'app/console %command.name%', $command->getHelp()));
        }
    }

    public function testConstructor()
    {
        $application = new Application('foo', 'bar');
        $this->assertEquals('foo', $application->getName(), '__construct() takes the application name as its first argument');
        $this->assertEquals('bar', $application->getVersion(), '__construct() takes the application version as its second argument');
        $this->assertEquals(array('help', 'list'), array_keys($application->all()), '__construct() registered the help and list commands by default');
    }

    public function testSetGetName()
    {
        $application = new Application();
        $application->setName('foo');
        $this->assertEquals('foo', $application->getName(), '->setName() sets the name of the application');
    }

    public function testSetGetVersion()
    {
        $application = new Application();
        $application->setVersion('bar');
        $this->assertEquals('bar', $application->getVersion(), '->setVersion() sets the version of the application');
    }

    public function testGetLongVersion()
    {
        $application = new Application('foo', 'bar');
        $this->assertEquals('foo <info>bar</info>', $application->getLongVersion(), '->getLongVersion() returns the long version of the application');
    }

    public function testHelp()
    {
        $application = new Application();
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_gethelp.txt', $this->normalizeLineBreaks($application->getHelp()), '->getHelp() returns a help message');
    }

    public function testAll()
    {
        $application = new Application();
        $commands = $application->all();
        $this->assertInstanceOf('Symfony\\Component\\Console\\Command\\HelpCommand', $commands['help'], '->all() returns the registered commands');

        $application->add(new \FooCommand());
        $commands = $application->all('foo');
        $this->assertCount(1, $commands, '->all() takes a namespace as its first argument');
    }

    public function testAllWithCommandLoader()
    {
        $application = new Application();
        $commands = $application->all();
        $this->assertInstanceOf('Symfony\\Component\\Console\\Command\\HelpCommand', $commands['help'], '->all() returns the registered commands');

        $application->add(new \FooCommand());
        $commands = $application->all('foo');
        $this->assertCount(1, $commands, '->all() takes a namespace as its first argument');

        $application->setCommandLoader(new FactoryCommandLoader(array(
            'foo:bar1' => function () { return new \Foo1Command(); },
        )));
        $commands = $application->all('foo');
        $this->assertCount(2, $commands, '->all() takes a namespace as its first argument');
        $this->assertInstanceOf(\FooCommand::class, $commands['foo:bar'], '->all() returns the registered commands');
        $this->assertInstanceOf(\Foo1Command::class, $commands['foo:bar1'], '->all() returns the registered commands');
    }

    public function testRegister()
    {
        $application = new Application();
        $command = $application->register('foo');
        $this->assertEquals('foo', $command->getName(), '->register() registers a new command');
    }

    public function testAdd()
    {
        $application = new Application();
        $application->add($foo = new \FooCommand());
        $commands = $application->all();
        $this->assertEquals($foo, $commands['foo:bar'], '->add() registers a command');

        $application = new Application();
        $application->addCommands(array($foo = new \FooCommand(), $foo1 = new \Foo1Command()));
        $commands = $application->all();
        $this->assertEquals(array($foo, $foo1), array($commands['foo:bar'], $commands['foo:bar1']), '->addCommands() registers an array of commands');
    }

    /**
     * @expectedException \LogicException
     * @expectedExceptionMessage Command class "Foo5Command" is not correctly initialized. You probably forgot to call the parent constructor.
     */
    public function testAddCommandWithEmptyConstructor()
    {
        $application = new Application();
        $application->add(new \Foo5Command());
    }

    public function testHasGet()
    {
        $application = new Application();
        $this->assertTrue($application->has('list'), '->has() returns true if a named command is registered');
        $this->assertFalse($application->has('afoobar'), '->has() returns false if a named command is not registered');

        $application->add($foo = new \FooCommand());
        $this->assertTrue($application->has('afoobar'), '->has() returns true if an alias is registered');
        $this->assertEquals($foo, $application->get('foo:bar'), '->get() returns a command by name');
        $this->assertEquals($foo, $application->get('afoobar'), '->get() returns a command by alias');

        $application = new Application();
        $application->add($foo = new \FooCommand());
        // simulate --help
        $r = new \ReflectionObject($application);
        $p = $r->getProperty('wantHelps');
        $p->setAccessible(true);
        $p->setValue($application, true);
        $command = $application->get('foo:bar');
        $this->assertInstanceOf('Symfony\Component\Console\Command\HelpCommand', $command, '->get() returns the help command if --help is provided as the input');
    }

    public function testHasGetWithCommandLoader()
    {
        $application = new Application();
        $this->assertTrue($application->has('list'), '->has() returns true if a named command is registered');
        $this->assertFalse($application->has('afoobar'), '->has() returns false if a named command is not registered');

        $application->add($foo = new \FooCommand());
        $this->assertTrue($application->has('afoobar'), '->has() returns true if an alias is registered');
        $this->assertEquals($foo, $application->get('foo:bar'), '->get() returns a command by name');
        $this->assertEquals($foo, $application->get('afoobar'), '->get() returns a command by alias');

        $application->setCommandLoader(new FactoryCommandLoader(array(
            'foo:bar1' => function () { return new \Foo1Command(); },
        )));

        $this->assertTrue($application->has('afoobar'), '->has() returns true if an instance is registered for an alias even with command loader');
        $this->assertEquals($foo, $application->get('foo:bar'), '->get() returns an instance by name even with command loader');
        $this->assertEquals($foo, $application->get('afoobar'), '->get() returns an instance by alias even with command loader');
        $this->assertTrue($application->has('foo:bar1'), '->has() returns true for commands registered in the loader');
        $this->assertInstanceOf(\Foo1Command::class, $foo1 = $application->get('foo:bar1'), '->get() returns a command by name from the command loader');
        $this->assertTrue($application->has('afoobar1'), '->has() returns true for commands registered in the loader');
        $this->assertEquals($foo1, $application->get('afoobar1'), '->get() returns a command by name from the command loader');
    }

    public function testSilentHelp()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $tester = new ApplicationTester($application);
        $tester->run(array('-h' => true, '-q' => true), array('decorated' => false));

        $this->assertEmpty($tester->getDisplay(true));
    }

    /**
     * @expectedException        \Symfony\Component\Console\Exception\CommandNotFoundException
     * @expectedExceptionMessage The command "foofoo" does not exist.
     */
    public function testGetInvalidCommand()
    {
        $application = new Application();
        $application->get('foofoo');
    }

    public function testGetNamespaces()
    {
        $application = new Application();
        $application->add(new \FooCommand());
        $application->add(new \Foo1Command());
        $this->assertEquals(array('foo'), $application->getNamespaces(), '->getNamespaces() returns an array of unique used namespaces');
    }

    public function testFindNamespace()
    {
        $application = new Application();
        $application->add(new \FooCommand());
        $this->assertEquals('foo', $application->findNamespace('foo'), '->findNamespace() returns the given namespace if it exists');
        $this->assertEquals('foo', $application->findNamespace('f'), '->findNamespace() finds a namespace given an abbreviation');
        $application->add(new \Foo2Command());
        $this->assertEquals('foo', $application->findNamespace('foo'), '->findNamespace() returns the given namespace if it exists');
    }

    public function testFindNamespaceWithSubnamespaces()
    {
        $application = new Application();
        $application->add(new \FooSubnamespaced1Command());
        $application->add(new \FooSubnamespaced2Command());
        $this->assertEquals('foo', $application->findNamespace('foo'), '->findNamespace() returns commands even if the commands are only contained in subnamespaces');
    }

    public function testFindAmbiguousNamespace()
    {
        $application = new Application();
        $application->add(new \BarBucCommand());
        $application->add(new \FooCommand());
        $application->add(new \Foo2Command());

        $expectedMsg = "The namespace \"f\" is ambiguous.\nDid you mean one of these?\n    foo\n    foo1";

        if (method_exists($this, 'expectException')) {
            $this->expectException(CommandNotFoundException::class);
            $this->expectExceptionMessage($expectedMsg);
        } else {
            $this->setExpectedException(CommandNotFoundException::class, $expectedMsg);
        }

        $application->findNamespace('f');
    }

    public function testFindNonAmbiguous()
    {
        $application = new Application();
        $application->add(new \TestTiti());
        $application->add(new \TestToto());
        $this->assertEquals('test-toto', $application->find('test')->getName());
    }

    /**
     * @expectedException        \Symfony\Component\Console\Exception\CommandNotFoundException
     * @expectedExceptionMessage There are no commands defined in the "bar" namespace.
     */
    public function testFindInvalidNamespace()
    {
        $application = new Application();
        $application->findNamespace('bar');
    }

    /**
     * @expectedException        \Symfony\Component\Console\Exception\CommandNotFoundException
     * @expectedExceptionMessage Command "foo1" is not defined
     */
    public function testFindUniqueNameButNamespaceName()
    {
        $application = new Application();
        $application->add(new \FooCommand());
        $application->add(new \Foo1Command());
        $application->add(new \Foo2Command());

        $application->find($commandName = 'foo1');
    }

    public function testFind()
    {
        $application = new Application();
        $application->add(new \FooCommand());

        $this->assertInstanceOf('FooCommand', $application->find('foo:bar'), '->find() returns a command if its name exists');
        $this->assertInstanceOf('Symfony\Component\Console\Command\HelpCommand', $application->find('h'), '->find() returns a command if its name exists');
        $this->assertInstanceOf('FooCommand', $application->find('f:bar'), '->find() returns a command if the abbreviation for the namespace exists');
        $this->assertInstanceOf('FooCommand', $application->find('f:b'), '->find() returns a command if the abbreviation for the namespace and the command name exist');
        $this->assertInstanceOf('FooCommand', $application->find('a'), '->find() returns a command if the abbreviation exists for an alias');
    }

    public function testFindCaseSensitiveFirst()
    {
        $application = new Application();
        $application->add(new \FooSameCaseUppercaseCommand());
        $application->add(new \FooSameCaseLowercaseCommand());

        $this->assertInstanceOf('FooSameCaseUppercaseCommand', $application->find('f:B'), '->find() returns a command if the abbreviation is the correct case');
        $this->assertInstanceOf('FooSameCaseUppercaseCommand', $application->find('f:BAR'), '->find() returns a command if the abbreviation is the correct case');
        $this->assertInstanceOf('FooSameCaseLowercaseCommand', $application->find('f:b'), '->find() returns a command if the abbreviation is the correct case');
        $this->assertInstanceOf('FooSameCaseLowercaseCommand', $application->find('f:bar'), '->find() returns a command if the abbreviation is the correct case');
    }

    public function testFindCaseInsensitiveAsFallback()
    {
        $application = new Application();
        $application->add(new \FooSameCaseLowercaseCommand());

        $this->assertInstanceOf('FooSameCaseLowercaseCommand', $application->find('f:b'), '->find() returns a command if the abbreviation is the correct case');
        $this->assertInstanceOf('FooSameCaseLowercaseCommand', $application->find('f:B'), '->find() will fallback to case insensitivity');
        $this->assertInstanceOf('FooSameCaseLowercaseCommand', $application->find('FoO:BaR'), '->find() will fallback to case insensitivity');
    }

    /**
     * @expectedException        \Symfony\Component\Console\Exception\CommandNotFoundException
     * @expectedExceptionMessage Command "FoO:BaR" is ambiguous
     */
    public function testFindCaseInsensitiveSuggestions()
    {
        $application = new Application();
        $application->add(new \FooSameCaseLowercaseCommand());
        $application->add(new \FooSameCaseUppercaseCommand());

        $this->assertInstanceOf('FooSameCaseLowercaseCommand', $application->find('FoO:BaR'), '->find() will find two suggestions with case insensitivity');
    }

    public function testFindWithCommandLoader()
    {
        $application = new Application();
        $application->setCommandLoader(new FactoryCommandLoader(array(
            'foo:bar' => $f = function () { return new \FooCommand(); },
        )));

        $this->assertInstanceOf('FooCommand', $application->find('foo:bar'), '->find() returns a command if its name exists');
        $this->assertInstanceOf('Symfony\Component\Console\Command\HelpCommand', $application->find('h'), '->find() returns a command if its name exists');
        $this->assertInstanceOf('FooCommand', $application->find('f:bar'), '->find() returns a command if the abbreviation for the namespace exists');
        $this->assertInstanceOf('FooCommand', $application->find('f:b'), '->find() returns a command if the abbreviation for the namespace and the command name exist');
        $this->assertInstanceOf('FooCommand', $application->find('a'), '->find() returns a command if the abbreviation exists for an alias');
    }

    /**
     * @dataProvider provideAmbiguousAbbreviations
     */
    public function testFindWithAmbiguousAbbreviations($abbreviation, $expectedExceptionMessage)
    {
        if (method_exists($this, 'expectException')) {
            $this->expectException('Symfony\Component\Console\Exception\CommandNotFoundException');
            $this->expectExceptionMessage($expectedExceptionMessage);
        } else {
            $this->setExpectedException('Symfony\Component\Console\Exception\CommandNotFoundException', $expectedExceptionMessage);
        }

        $application = new Application();
        $application->add(new \FooCommand());
        $application->add(new \Foo1Command());
        $application->add(new \Foo2Command());

        $application->find($abbreviation);
    }

    public function provideAmbiguousAbbreviations()
    {
        return array(
            array('f', 'Command "f" is not defined.'),
            array(
                'a',
                "Command \"a\" is ambiguous.\nDid you mean one of these?\n".
                "    afoobar  The foo:bar command\n".
                "    afoobar1 The foo:bar1 command\n".
                '    afoobar2 The foo1:bar command',
            ),
            array(
                'foo:b',
                "Command \"foo:b\" is ambiguous.\nDid you mean one of these?\n".
                "    foo:bar  The foo:bar command\n".
                "    foo:bar1 The foo:bar1 command\n".
                '    foo1:bar The foo1:bar command',
            ),
        );
    }

    public function testFindCommandEqualNamespace()
    {
        $application = new Application();
        $application->add(new \Foo3Command());
        $application->add(new \Foo4Command());

        $this->assertInstanceOf('Foo3Command', $application->find('foo3:bar'), '->find() returns the good command even if a namespace has same name');
        $this->assertInstanceOf('Foo4Command', $application->find('foo3:bar:toh'), '->find() returns a command even if its namespace equals another command name');
    }

    public function testFindCommandWithAmbiguousNamespacesButUniqueName()
    {
        $application = new Application();
        $application->add(new \FooCommand());
        $application->add(new \FoobarCommand());

        $this->assertInstanceOf('FoobarCommand', $application->find('f:f'));
    }

    public function testFindCommandWithMissingNamespace()
    {
        $application = new Application();
        $application->add(new \Foo4Command());

        $this->assertInstanceOf('Foo4Command', $application->find('f::t'));
    }

    /**
     * @dataProvider             provideInvalidCommandNamesSingle
     * @expectedException        \Symfony\Component\Console\Exception\CommandNotFoundException
     * @expectedExceptionMessage Did you mean this
     */
    public function testFindAlternativeExceptionMessageSingle($name)
    {
        $application = new Application();
        $application->add(new \Foo3Command());
        $application->find($name);
    }

    public function provideInvalidCommandNamesSingle()
    {
        return array(
            array('foo3:barr'),
            array('fooo3:bar'),
        );
    }

    public function testFindAlternativeExceptionMessageMultiple()
    {
        $application = new Application();
        $application->add(new \FooCommand());
        $application->add(new \Foo1Command());
        $application->add(new \Foo2Command());

        // Command + plural
        try {
            $application->find('foo:baR');
            $this->fail('->find() throws a CommandNotFoundException if command does not exist, with alternatives');
        } catch (\Exception $e) {
            $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e, '->find() throws a CommandNotFoundException if command does not exist, with alternatives');
            $this->assertRegExp('/Did you mean one of these/', $e->getMessage(), '->find() throws a CommandNotFoundException if command does not exist, with alternatives');
            $this->assertRegExp('/foo1:bar/', $e->getMessage());
            $this->assertRegExp('/foo:bar/', $e->getMessage());
        }

        // Namespace + plural
        try {
            $application->find('foo2:bar');
            $this->fail('->find() throws a CommandNotFoundException if command does not exist, with alternatives');
        } catch (\Exception $e) {
            $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e, '->find() throws a CommandNotFoundException if command does not exist, with alternatives');
            $this->assertRegExp('/Did you mean one of these/', $e->getMessage(), '->find() throws a CommandNotFoundException if command does not exist, with alternatives');
            $this->assertRegExp('/foo1/', $e->getMessage());
        }

        $application->add(new \Foo3Command());
        $application->add(new \Foo4Command());

        // Subnamespace + plural
        try {
            $a = $application->find('foo3:');
            $this->fail('->find() should throw an Symfony\Component\Console\Exception\CommandNotFoundException if a command is ambiguous because of a subnamespace, with alternatives');
        } catch (\Exception $e) {
            $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e);
            $this->assertRegExp('/foo3:bar/', $e->getMessage());
            $this->assertRegExp('/foo3:bar:toh/', $e->getMessage());
        }
    }

    public function testFindAlternativeCommands()
    {
        $application = new Application();

        $application->add(new \FooCommand());
        $application->add(new \Foo1Command());
        $application->add(new \Foo2Command());

        try {
            $application->find($commandName = 'Unknown command');
            $this->fail('->find() throws a CommandNotFoundException if command does not exist');
        } catch (\Exception $e) {
            $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e, '->find() throws a CommandNotFoundException if command does not exist');
            $this->assertSame(array(), $e->getAlternatives());
            $this->assertEquals(sprintf('Command "%s" is not defined.', $commandName), $e->getMessage(), '->find() throws a CommandNotFoundException if command does not exist, without alternatives');
        }

        // Test if "bar1" command throw a "CommandNotFoundException" and does not contain
        // "foo:bar" as alternative because "bar1" is too far from "foo:bar"
        try {
            $application->find($commandName = 'bar1');
            $this->fail('->find() throws a CommandNotFoundException if command does not exist');
        } catch (\Exception $e) {
            $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e, '->find() throws a CommandNotFoundException if command does not exist');
            $this->assertSame(array('afoobar1', 'foo:bar1'), $e->getAlternatives());
            $this->assertRegExp(sprintf('/Command "%s" is not defined./', $commandName), $e->getMessage(), '->find() throws a CommandNotFoundException if command does not exist, with alternatives');
            $this->assertRegExp('/afoobar1/', $e->getMessage(), '->find() throws a CommandNotFoundException if command does not exist, with alternative : "afoobar1"');
            $this->assertRegExp('/foo:bar1/', $e->getMessage(), '->find() throws a CommandNotFoundException if command does not exist, with alternative : "foo:bar1"');
            $this->assertNotRegExp('/foo:bar(?>!1)/', $e->getMessage(), '->find() throws a CommandNotFoundException if command does not exist, without "foo:bar" alternative');
        }
    }

    public function testFindAlternativeCommandsWithAnAlias()
    {
        $fooCommand = new \FooCommand();
        $fooCommand->setAliases(array('foo2'));

        $application = new Application();
        $application->add($fooCommand);

        $result = $application->find('foo');

        $this->assertSame($fooCommand, $result);
    }

    public function testFindAlternativeNamespace()
    {
        $application = new Application();

        $application->add(new \FooCommand());
        $application->add(new \Foo1Command());
        $application->add(new \Foo2Command());
        $application->add(new \Foo3Command());

        try {
            $application->find('Unknown-namespace:Unknown-command');
            $this->fail('->find() throws a CommandNotFoundException if namespace does not exist');
        } catch (\Exception $e) {
            $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e, '->find() throws a CommandNotFoundException if namespace does not exist');
            $this->assertSame(array(), $e->getAlternatives());
            $this->assertEquals('There are no commands defined in the "Unknown-namespace" namespace.', $e->getMessage(), '->find() throws a CommandNotFoundException if namespace does not exist, without alternatives');
        }

        try {
            $application->find('foo2:command');
            $this->fail('->find() throws a CommandNotFoundException if namespace does not exist');
        } catch (\Exception $e) {
            $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e, '->find() throws a CommandNotFoundException if namespace does not exist');
            $this->assertCount(3, $e->getAlternatives());
            $this->assertContains('foo', $e->getAlternatives());
            $this->assertContains('foo1', $e->getAlternatives());
            $this->assertContains('foo3', $e->getAlternatives());
            $this->assertRegExp('/There are no commands defined in the "foo2" namespace./', $e->getMessage(), '->find() throws a CommandNotFoundException if namespace does not exist, with alternative');
            $this->assertRegExp('/foo/', $e->getMessage(), '->find() throws a CommandNotFoundException if namespace does not exist, with alternative : "foo"');
            $this->assertRegExp('/foo1/', $e->getMessage(), '->find() throws a CommandNotFoundException if namespace does not exist, with alternative : "foo1"');
            $this->assertRegExp('/foo3/', $e->getMessage(), '->find() throws a CommandNotFoundException if namespace does not exist, with alternative : "foo3"');
        }
    }

    public function testFindAlternativesOutput()
    {
        $application = new Application();

        $application->add(new \FooCommand());
        $application->add(new \Foo1Command());
        $application->add(new \Foo2Command());
        $application->add(new \Foo3Command());

        $expectedAlternatives = array(
            'afoobar',
            'afoobar1',
            'afoobar2',
            'foo1:bar',
            'foo3:bar',
            'foo:bar',
            'foo:bar1',
        );

        try {
            $application->find('foo');
            $this->fail('->find() throws a CommandNotFoundException if command is not defined');
        } catch (\Exception $e) {
            $this->assertInstanceOf('Symfony\Component\Console\Exception\CommandNotFoundException', $e, '->find() throws a CommandNotFoundException if command is not defined');
            $this->assertSame($expectedAlternatives, $e->getAlternatives());

            $this->assertRegExp('/Command "foo" is not defined\..*Did you mean one of these\?.*/Ums', $e->getMessage());
        }
    }

    public function testFindNamespaceDoesNotFailOnDeepSimilarNamespaces()
    {
        $application = $this->getMockBuilder('Symfony\Component\Console\Application')->setMethods(array('getNamespaces'))->getMock();
        $application->expects($this->once())
            ->method('getNamespaces')
            ->will($this->returnValue(array('foo:sublong', 'bar:sub')));

        $this->assertEquals('foo:sublong', $application->findNamespace('f:sub'));
    }

    /**
     * @expectedException \Symfony\Component\Console\Exception\CommandNotFoundException
     * @expectedExceptionMessage Command "foo::bar" is not defined.
     */
    public function testFindWithDoubleColonInNameThrowsException()
    {
        $application = new Application();
        $application->add(new \FooCommand());
        $application->add(new \Foo4Command());
        $application->find('foo::bar');
    }

    public function testSetCatchExceptions()
    {
        $application = new Application();
        $application->setAutoExit(false);
        putenv('COLUMNS=120');
        $tester = new ApplicationTester($application);

        $application->setCatchExceptions(true);
        $this->assertTrue($application->areExceptionsCaught());

        $tester->run(array('command' => 'foo'), array('decorated' => false));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_renderexception1.txt', $tester->getDisplay(true), '->setCatchExceptions() sets the catch exception flag');

        $tester->run(array('command' => 'foo'), array('decorated' => false, 'capture_stderr_separately' => true));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_renderexception1.txt', $tester->getErrorOutput(true), '->setCatchExceptions() sets the catch exception flag');
        $this->assertSame('', $tester->getDisplay(true));

        $application->setCatchExceptions(false);
        try {
            $tester->run(array('command' => 'foo'), array('decorated' => false));
            $this->fail('->setCatchExceptions() sets the catch exception flag');
        } catch (\Exception $e) {
            $this->assertInstanceOf('\Exception', $e, '->setCatchExceptions() sets the catch exception flag');
            $this->assertEquals('Command "foo" is not defined.', $e->getMessage(), '->setCatchExceptions() sets the catch exception flag');
        }
    }

    public function testAutoExitSetting()
    {
        $application = new Application();
        $this->assertTrue($application->isAutoExitEnabled());

        $application->setAutoExit(false);
        $this->assertFalse($application->isAutoExitEnabled());
    }

    public function testRenderException()
    {
        $application = new Application();
        $application->setAutoExit(false);
        putenv('COLUMNS=120');
        $tester = new ApplicationTester($application);

        $tester->run(array('command' => 'foo'), array('decorated' => false, 'capture_stderr_separately' => true));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_renderexception1.txt', $tester->getErrorOutput(true), '->renderException() renders a pretty exception');

        $tester->run(array('command' => 'foo'), array('decorated' => false, 'verbosity' => Output::VERBOSITY_VERBOSE, 'capture_stderr_separately' => true));
        $this->assertContains('Exception trace', $tester->getErrorOutput(), '->renderException() renders a pretty exception with a stack trace when verbosity is verbose');

        $tester->run(array('command' => 'list', '--foo' => true), array('decorated' => false, 'capture_stderr_separately' => true));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_renderexception2.txt', $tester->getErrorOutput(true), '->renderException() renders the command synopsis when an exception occurs in the context of a command');

        $application->add(new \Foo3Command());
        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo3:bar'), array('decorated' => false, 'capture_stderr_separately' => true));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_renderexception3.txt', $tester->getErrorOutput(true), '->renderException() renders a pretty exceptions with previous exceptions');

        $tester->run(array('command' => 'foo3:bar'), array('decorated' => false, 'verbosity' => Output::VERBOSITY_VERBOSE));
        $this->assertRegExp('/\[Exception\]\s*First exception/', $tester->getDisplay(), '->renderException() renders a pretty exception without code exception when code exception is default and verbosity is verbose');
        $this->assertRegExp('/\[Exception\]\s*Second exception/', $tester->getDisplay(), '->renderException() renders a pretty exception without code exception when code exception is 0 and verbosity is verbose');
        $this->assertRegExp('/\[Exception \(404\)\]\s*Third exception/', $tester->getDisplay(), '->renderException() renders a pretty exception with code exception when code exception is 404 and verbosity is verbose');

        $tester->run(array('command' => 'foo3:bar'), array('decorated' => true));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_renderexception3decorated.txt', $tester->getDisplay(true), '->renderException() renders a pretty exceptions with previous exceptions');

        $tester->run(array('command' => 'foo3:bar'), array('decorated' => true, 'capture_stderr_separately' => true));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_renderexception3decorated.txt', $tester->getErrorOutput(true), '->renderException() renders a pretty exceptions with previous exceptions');

        $application = new Application();
        $application->setAutoExit(false);
        putenv('COLUMNS=32');
        $tester = new ApplicationTester($application);

        $tester->run(array('command' => 'foo'), array('decorated' => false,  'capture_stderr_separately' => true));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_renderexception4.txt', $tester->getErrorOutput(true), '->renderException() wraps messages when they are bigger than the terminal');
        putenv('COLUMNS=120');
    }

    public function testRenderExceptionWithDoubleWidthCharacters()
    {
        $application = new Application();
        $application->setAutoExit(false);
        putenv('COLUMNS=120');
        $application->register('foo')->setCode(function () {
            throw new \Exception('エラーメッセージ');
        });
        $tester = new ApplicationTester($application);

        $tester->run(array('command' => 'foo'), array('decorated' => false, 'capture_stderr_separately' => true));
        $this->assertStringMatchesFormatFile(self::$fixturesPath.'/application_renderexception_doublewidth1.txt', $tester->getErrorOutput(true), '->renderException() renders a pretty exceptions with previous exceptions');

        $tester->run(array('command' => 'foo'), array('decorated' => true, 'capture_stderr_separately' => true));
        $this->assertStringMatchesFormatFile(self::$fixturesPath.'/application_renderexception_doublewidth1decorated.txt', $tester->getErrorOutput(true), '->renderException() renders a pretty exceptions with previous exceptions');

        $application = new Application();
        $application->setAutoExit(false);
        putenv('COLUMNS=32');
        $application->register('foo')->setCode(function () {
            throw new \Exception('コマンドの実行中にエラーが発生しました。');
        });
        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo'), array('decorated' => false, 'capture_stderr_separately' => true));
        $this->assertStringMatchesFormatFile(self::$fixturesPath.'/application_renderexception_doublewidth2.txt', $tester->getErrorOutput(true), '->renderException() wraps messages when they are bigger than the terminal');
        putenv('COLUMNS=120');
    }

    public function testRenderExceptionEscapesLines()
    {
        $application = new Application();
        $application->setAutoExit(false);
        putenv('COLUMNS=22');
        $application->register('foo')->setCode(function () {
            throw new \Exception('dont break here <info>!</info>');
        });
        $tester = new ApplicationTester($application);

        $tester->run(array('command' => 'foo'), array('decorated' => false));
        $this->assertStringMatchesFormatFile(self::$fixturesPath.'/application_renderexception_escapeslines.txt', $tester->getDisplay(true), '->renderException() escapes lines containing formatting');
        putenv('COLUMNS=120');
    }

    public function testRenderExceptionLineBreaks()
    {
        $application = $this->getMockBuilder('Symfony\Component\Console\Application')->setMethods(array('getTerminalWidth'))->getMock();
        $application->setAutoExit(false);
        $application->expects($this->any())
            ->method('getTerminalWidth')
            ->will($this->returnValue(120));
        $application->register('foo')->setCode(function () {
            throw new \InvalidArgumentException("\n\nline 1 with extra spaces        \nline 2\n\nline 4\n");
        });
        $tester = new ApplicationTester($application);

        $tester->run(array('command' => 'foo'), array('decorated' => false));
        $this->assertStringMatchesFormatFile(self::$fixturesPath.'/application_renderexception_linebreaks.txt', $tester->getDisplay(true), '->renderException() keep multiple line breaks');
    }

    public function testRun()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);
        $application->add($command = new \Foo1Command());
        $_SERVER['argv'] = array('cli.php', 'foo:bar1');

        ob_start();
        $application->run();
        ob_end_clean();

        $this->assertInstanceOf('Symfony\Component\Console\Input\ArgvInput', $command->input, '->run() creates an ArgvInput by default if none is given');
        $this->assertInstanceOf('Symfony\Component\Console\Output\ConsoleOutput', $command->output, '->run() creates a ConsoleOutput by default if none is given');

        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $this->ensureStaticCommandHelp($application);
        $tester = new ApplicationTester($application);

        $tester->run(array(), array('decorated' => false));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_run1.txt', $tester->getDisplay(true), '->run() runs the list command if no argument is passed');

        $tester->run(array('--help' => true), array('decorated' => false));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_run2.txt', $tester->getDisplay(true), '->run() runs the help command if --help is passed');

        $tester->run(array('-h' => true), array('decorated' => false));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_run2.txt', $tester->getDisplay(true), '->run() runs the help command if -h is passed');

        $tester->run(array('command' => 'list', '--help' => true), array('decorated' => false));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_run3.txt', $tester->getDisplay(true), '->run() displays the help if --help is passed');

        $tester->run(array('command' => 'list', '-h' => true), array('decorated' => false));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_run3.txt', $tester->getDisplay(true), '->run() displays the help if -h is passed');

        $tester->run(array('--ansi' => true));
        $this->assertTrue($tester->getOutput()->isDecorated(), '->run() forces color output if --ansi is passed');

        $tester->run(array('--no-ansi' => true));
        $this->assertFalse($tester->getOutput()->isDecorated(), '->run() forces color output to be disabled if --no-ansi is passed');

        $tester->run(array('--version' => true), array('decorated' => false));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_run4.txt', $tester->getDisplay(true), '->run() displays the program version if --version is passed');

        $tester->run(array('-V' => true), array('decorated' => false));
        $this->assertStringEqualsFile(self::$fixturesPath.'/application_run4.txt', $tester->getDisplay(true), '->run() displays the program version if -v is passed');

        $tester->run(array('command' => 'list', '--quiet' => true));
        $this->assertSame('', $tester->getDisplay(), '->run() removes all output if --quiet is passed');
        $this->assertFalse($tester->getInput()->isInteractive(), '->run() sets off the interactive mode if --quiet is passed');

        $tester->run(array('command' => 'list', '-q' => true));
        $this->assertSame('', $tester->getDisplay(), '->run() removes all output if -q is passed');
        $this->assertFalse($tester->getInput()->isInteractive(), '->run() sets off the interactive mode if -q is passed');

        $tester->run(array('command' => 'list', '--verbose' => true));
        $this->assertSame(Output::VERBOSITY_VERBOSE, $tester->getOutput()->getVerbosity(), '->run() sets the output to verbose if --verbose is passed');

        $tester->run(array('command' => 'list', '--verbose' => 1));
        $this->assertSame(Output::VERBOSITY_VERBOSE, $tester->getOutput()->getVerbosity(), '->run() sets the output to verbose if --verbose=1 is passed');

        $tester->run(array('command' => 'list', '--verbose' => 2));
        $this->assertSame(Output::VERBOSITY_VERY_VERBOSE, $tester->getOutput()->getVerbosity(), '->run() sets the output to very verbose if --verbose=2 is passed');

        $tester->run(array('command' => 'list', '--verbose' => 3));
        $this->assertSame(Output::VERBOSITY_DEBUG, $tester->getOutput()->getVerbosity(), '->run() sets the output to debug if --verbose=3 is passed');

        $tester->run(array('command' => 'list', '--verbose' => 4));
        $this->assertSame(Output::VERBOSITY_VERBOSE, $tester->getOutput()->getVerbosity(), '->run() sets the output to verbose if unknown --verbose level is passed');

        $tester->run(array('command' => 'list', '-v' => true));
        $this->assertSame(Output::VERBOSITY_VERBOSE, $tester->getOutput()->getVerbosity(), '->run() sets the output to verbose if -v is passed');

        $tester->run(array('command' => 'list', '-vv' => true));
        $this->assertSame(Output::VERBOSITY_VERY_VERBOSE, $tester->getOutput()->getVerbosity(), '->run() sets the output to verbose if -v is passed');

        $tester->run(array('command' => 'list', '-vvv' => true));
        $this->assertSame(Output::VERBOSITY_DEBUG, $tester->getOutput()->getVerbosity(), '->run() sets the output to verbose if -v is passed');

        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);
        $application->add(new \FooCommand());
        $tester = new ApplicationTester($application);

        $tester->run(array('command' => 'foo:bar', '--no-interaction' => true), array('decorated' => false));
        $this->assertSame('called'.PHP_EOL, $tester->getDisplay(), '->run() does not call interact() if --no-interaction is passed');

        $tester->run(array('command' => 'foo:bar', '-n' => true), array('decorated' => false));
        $this->assertSame('called'.PHP_EOL, $tester->getDisplay(), '->run() does not call interact() if -n is passed');
    }

    /**
     * Issue #9285.
     *
     * If the "verbose" option is just before an argument in ArgvInput,
     * an argument value should not be treated as verbosity value.
     * This test will fail with "Not enough arguments." if broken
     */
    public function testVerboseValueNotBreakArguments()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);
        $application->add(new \FooCommand());

        $output = new StreamOutput(fopen('php://memory', 'w', false));

        $input = new ArgvInput(array('cli.php', '-v', 'foo:bar'));
        $application->run($input, $output);

        $this->addToAssertionCount(1);

        $input = new ArgvInput(array('cli.php', '--verbose', 'foo:bar'));
        $application->run($input, $output);

        $this->addToAssertionCount(1);
    }

    public function testRunReturnsIntegerExitCode()
    {
        $exception = new \Exception('', 4);

        $application = $this->getMockBuilder('Symfony\Component\Console\Application')->setMethods(array('doRun'))->getMock();
        $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');
    }

    public function testRunReturnsExitCodeOneForExceptionCodeZero()
    {
        $exception = new \Exception('', 0);

        $application = $this->getMockBuilder('Symfony\Component\Console\Application')->setMethods(array('doRun'))->getMock();
        $application->setAutoExit(false);
        $application->expects($this->once())
            ->method('doRun')
            ->will($this->throwException($exception));

        $exitCode = $application->run(new ArrayInput(array()), new NullOutput());

        $this->assertSame(1, $exitCode, '->run() returns exit code 1 when exception code is 0');
    }

    /**
     * @expectedException \LogicException
     * @expectedExceptionMessage An option with shortcut "e" already exists.
     */
    public function testAddingOptionWithDuplicateShortcut()
    {
        $dispatcher = new EventDispatcher();
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);
        $application->setDispatcher($dispatcher);

        $application->getDefinition()->addOption(new InputOption('--env', '-e', InputOption::VALUE_REQUIRED, 'Environment'));

        $application
            ->register('foo')
            ->setAliases(array('f'))
            ->setDefinition(array(new InputOption('survey', 'e', InputOption::VALUE_REQUIRED, 'My option with a shortcut.')))
            ->setCode(function (InputInterface $input, OutputInterface $output) {})
        ;

        $input = new ArrayInput(array('command' => 'foo'));
        $output = new NullOutput();

        $application->run($input, $output);
    }

    /**
     * @expectedException \LogicException
     * @dataProvider getAddingAlreadySetDefinitionElementData
     */
    public function testAddingAlreadySetDefinitionElementData($def)
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);
        $application
            ->register('foo')
            ->setDefinition(array($def))
            ->setCode(function (InputInterface $input, OutputInterface $output) {})
        ;

        $input = new ArrayInput(array('command' => 'foo'));
        $output = new NullOutput();
        $application->run($input, $output);
    }

    public function getAddingAlreadySetDefinitionElementData()
    {
        return array(
            array(new InputArgument('command', InputArgument::REQUIRED)),
            array(new InputOption('quiet', '', InputOption::VALUE_NONE)),
            array(new InputOption('query', 'q', InputOption::VALUE_NONE)),
        );
    }

    public function testGetDefaultHelperSetReturnsDefaultValues()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $helperSet = $application->getHelperSet();

        $this->assertTrue($helperSet->has('formatter'));
    }

    public function testAddingSingleHelperSetOverwritesDefaultValues()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $application->setHelperSet(new HelperSet(array(new FormatterHelper())));

        $helperSet = $application->getHelperSet();

        $this->assertTrue($helperSet->has('formatter'));

        // no other default helper set should be returned
        $this->assertFalse($helperSet->has('dialog'));
        $this->assertFalse($helperSet->has('progress'));
    }

    public function testOverwritingDefaultHelperSetOverwritesDefaultValues()
    {
        $application = new CustomApplication();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $application->setHelperSet(new HelperSet(array(new FormatterHelper())));

        $helperSet = $application->getHelperSet();

        $this->assertTrue($helperSet->has('formatter'));

        // no other default helper set should be returned
        $this->assertFalse($helperSet->has('dialog'));
        $this->assertFalse($helperSet->has('progress'));
    }

    public function testGetDefaultInputDefinitionReturnsDefaultValues()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $inputDefinition = $application->getDefinition();

        $this->assertTrue($inputDefinition->hasArgument('command'));

        $this->assertTrue($inputDefinition->hasOption('help'));
        $this->assertTrue($inputDefinition->hasOption('quiet'));
        $this->assertTrue($inputDefinition->hasOption('verbose'));
        $this->assertTrue($inputDefinition->hasOption('version'));
        $this->assertTrue($inputDefinition->hasOption('ansi'));
        $this->assertTrue($inputDefinition->hasOption('no-ansi'));
        $this->assertTrue($inputDefinition->hasOption('no-interaction'));
    }

    public function testOverwritingDefaultInputDefinitionOverwritesDefaultValues()
    {
        $application = new CustomApplication();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $inputDefinition = $application->getDefinition();

        // check whether the default arguments and options are not returned any more
        $this->assertFalse($inputDefinition->hasArgument('command'));

        $this->assertFalse($inputDefinition->hasOption('help'));
        $this->assertFalse($inputDefinition->hasOption('quiet'));
        $this->assertFalse($inputDefinition->hasOption('verbose'));
        $this->assertFalse($inputDefinition->hasOption('version'));
        $this->assertFalse($inputDefinition->hasOption('ansi'));
        $this->assertFalse($inputDefinition->hasOption('no-ansi'));
        $this->assertFalse($inputDefinition->hasOption('no-interaction'));

        $this->assertTrue($inputDefinition->hasOption('custom'));
    }

    public function testSettingCustomInputDefinitionOverwritesDefaultValues()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $application->setDefinition(new InputDefinition(array(new InputOption('--custom', '-c', InputOption::VALUE_NONE, 'Set the custom input definition.'))));

        $inputDefinition = $application->getDefinition();

        // check whether the default arguments and options are not returned any more
        $this->assertFalse($inputDefinition->hasArgument('command'));

        $this->assertFalse($inputDefinition->hasOption('help'));
        $this->assertFalse($inputDefinition->hasOption('quiet'));
        $this->assertFalse($inputDefinition->hasOption('verbose'));
        $this->assertFalse($inputDefinition->hasOption('version'));
        $this->assertFalse($inputDefinition->hasOption('ansi'));
        $this->assertFalse($inputDefinition->hasOption('no-ansi'));
        $this->assertFalse($inputDefinition->hasOption('no-interaction'));

        $this->assertTrue($inputDefinition->hasOption('custom'));
    }

    public function testRunWithDispatcher()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setDispatcher($this->getDispatcher());

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('foo.');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo'));
        $this->assertEquals('before.foo.after.'.PHP_EOL, $tester->getDisplay());
    }

    /**
     * @expectedException        \LogicException
     * @expectedExceptionMessage error
     */
    public function testRunWithExceptionAndDispatcher()
    {
        $application = new Application();
        $application->setDispatcher($this->getDispatcher());
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            throw new \RuntimeException('foo');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo'));
    }

    public function testRunDispatchesAllEventsWithException()
    {
        $application = new Application();
        $application->setDispatcher($this->getDispatcher());
        $application->setAutoExit(false);

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('foo.');

            throw new \RuntimeException('foo');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo'));
        $this->assertContains('before.foo.error.after.', $tester->getDisplay());
    }

    public function testRunDispatchesAllEventsWithExceptionInListener()
    {
        $dispatcher = $this->getDispatcher();
        $dispatcher->addListener('console.command', function () {
            throw new \RuntimeException('foo');
        });

        $application = new Application();
        $application->setDispatcher($dispatcher);
        $application->setAutoExit(false);

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('foo.');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo'));
        $this->assertContains('before.error.after.', $tester->getDisplay());
    }

    /**
     * @requires PHP 7
     */
    public function testRunWithError()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $application->register('dym')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('dym.');

            throw new \Error('dymerr');
        });

        $tester = new ApplicationTester($application);

        try {
            $tester->run(array('command' => 'dym'));
            $this->fail('Error expected.');
        } catch (\Error $e) {
            $this->assertSame('dymerr', $e->getMessage());
        }
    }

    public function testRunAllowsErrorListenersToSilenceTheException()
    {
        $dispatcher = $this->getDispatcher();
        $dispatcher->addListener('console.error', function (ConsoleErrorEvent $event) {
            $event->getOutput()->write('silenced.');

            $event->setExitCode(0);
        });

        $dispatcher->addListener('console.command', function () {
            throw new \RuntimeException('foo');
        });

        $application = new Application();
        $application->setDispatcher($dispatcher);
        $application->setAutoExit(false);

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('foo.');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo'));
        $this->assertContains('before.error.silenced.after.', $tester->getDisplay());
        $this->assertEquals(ConsoleCommandEvent::RETURN_CODE_DISABLED, $tester->getStatusCode());
    }

    public function testConsoleErrorEventIsTriggeredOnCommandNotFound()
    {
        $dispatcher = new EventDispatcher();
        $dispatcher->addListener('console.error', function (ConsoleErrorEvent $event) {
            $this->assertNull($event->getCommand());
            $this->assertInstanceOf(CommandNotFoundException::class, $event->getError());
            $event->getOutput()->write('silenced command not found');
        });

        $application = new Application();
        $application->setDispatcher($dispatcher);
        $application->setAutoExit(false);

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'unknown'));
        $this->assertContains('silenced command not found', $tester->getDisplay());
        $this->assertEquals(1, $tester->getStatusCode());
    }

    /**
     * @group legacy
     * @expectedDeprecation The "ConsoleEvents::EXCEPTION" event is deprecated since Symfony 3.3 and will be removed in 4.0. Listen to the "ConsoleEvents::ERROR" event instead.
     */
    public function testLegacyExceptionListenersAreStillTriggered()
    {
        $dispatcher = $this->getDispatcher();
        $dispatcher->addListener('console.exception', function (ConsoleExceptionEvent $event) {
            $event->getOutput()->write('caught.');

            $event->setException(new \RuntimeException('replaced in caught.'));
        });

        $application = new Application();
        $application->setDispatcher($dispatcher);
        $application->setAutoExit(false);

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            throw new \RuntimeException('foo');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo'));
        $this->assertContains('before.caught.error.after.', $tester->getDisplay());
        $this->assertContains('replaced in caught.', $tester->getDisplay());
    }

    /**
     * @requires PHP 7
     */
    public function testErrorIsRethrownIfNotHandledByConsoleErrorEvent()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);
        $application->setDispatcher(new EventDispatcher());

        $application->register('dym')->setCode(function (InputInterface $input, OutputInterface $output) {
            new \UnknownClass();
        });

        $tester = new ApplicationTester($application);

        try {
            $tester->run(array('command' => 'dym'));
            $this->fail('->run() should rethrow PHP errors if not handled via ConsoleErrorEvent.');
        } catch (\Error $e) {
            $this->assertSame($e->getMessage(), 'Class \'UnknownClass\' not found');
        }
    }

    /**
     * @requires PHP 7
     * @expectedException        \LogicException
     * @expectedExceptionMessage error
     */
    public function testRunWithErrorAndDispatcher()
    {
        $application = new Application();
        $application->setDispatcher($this->getDispatcher());
        $application->setAutoExit(false);
        $application->setCatchExceptions(false);

        $application->register('dym')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('dym.');

            throw new \Error('dymerr');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'dym'));
        $this->assertContains('before.dym.error.after.', $tester->getDisplay(), 'The PHP Error did not dispached events');
    }

    /**
     * @requires PHP 7
     */
    public function testRunDispatchesAllEventsWithError()
    {
        $application = new Application();
        $application->setDispatcher($this->getDispatcher());
        $application->setAutoExit(false);

        $application->register('dym')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('dym.');

            throw new \Error('dymerr');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'dym'));
        $this->assertContains('before.dym.error.after.', $tester->getDisplay(), 'The PHP Error did not dispached events');
    }

    /**
     * @requires PHP 7
     */
    public function testRunWithErrorFailingStatusCode()
    {
        $application = new Application();
        $application->setDispatcher($this->getDispatcher());
        $application->setAutoExit(false);

        $application->register('dus')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('dus.');

            throw new \Error('duserr');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'dus'));
        $this->assertSame(1, $tester->getStatusCode(), 'Status code should be 1');
    }

    public function testRunWithDispatcherSkippingCommand()
    {
        $application = new Application();
        $application->setDispatcher($this->getDispatcher(true));
        $application->setAutoExit(false);

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('foo.');
        });

        $tester = new ApplicationTester($application);
        $exitCode = $tester->run(array('command' => 'foo'));
        $this->assertContains('before.after.', $tester->getDisplay());
        $this->assertEquals(ConsoleCommandEvent::RETURN_CODE_DISABLED, $exitCode);
    }

    public function testRunWithDispatcherAccessingInputOptions()
    {
        $noInteractionValue = null;
        $quietValue = null;

        $dispatcher = $this->getDispatcher();
        $dispatcher->addListener('console.command', function (ConsoleCommandEvent $event) use (&$noInteractionValue, &$quietValue) {
            $input = $event->getInput();

            $noInteractionValue = $input->getOption('no-interaction');
            $quietValue = $input->getOption('quiet');
        });

        $application = new Application();
        $application->setDispatcher($dispatcher);
        $application->setAutoExit(false);

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('foo.');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo', '--no-interaction' => true));

        $this->assertTrue($noInteractionValue);
        $this->assertFalse($quietValue);
    }

    public function testRunWithDispatcherAddingInputOptions()
    {
        $extraValue = null;

        $dispatcher = $this->getDispatcher();
        $dispatcher->addListener('console.command', function (ConsoleCommandEvent $event) use (&$extraValue) {
            $definition = $event->getCommand()->getDefinition();
            $input = $event->getInput();

            $definition->addOption(new InputOption('extra', null, InputOption::VALUE_REQUIRED));
            $input->bind($definition);

            $extraValue = $input->getOption('extra');
        });

        $application = new Application();
        $application->setDispatcher($dispatcher);
        $application->setAutoExit(false);

        $application->register('foo')->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->write('foo.');
        });

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'foo', '--extra' => 'some test value'));

        $this->assertEquals('some test value', $extraValue);
    }

    /**
     * @group legacy
     */
    public function testTerminalDimensions()
    {
        $application = new Application();
        $originalDimensions = $application->getTerminalDimensions();
        $this->assertCount(2, $originalDimensions);

        $width = 80;
        if ($originalDimensions[0] == $width) {
            $width = 100;
        }

        $application->setTerminalDimensions($width, 80);
        $this->assertSame(array($width, 80), $application->getTerminalDimensions());
    }

    public function testSetRunCustomDefaultCommand()
    {
        $command = new \FooCommand();

        $application = new Application();
        $application->setAutoExit(false);
        $application->add($command);
        $application->setDefaultCommand($command->getName());

        $tester = new ApplicationTester($application);
        $tester->run(array(), array('interactive' => false));
        $this->assertEquals('called'.PHP_EOL, $tester->getDisplay(), 'Application runs the default set command if different from \'list\' command');

        $application = new CustomDefaultCommandApplication();
        $application->setAutoExit(false);

        $tester = new ApplicationTester($application);
        $tester->run(array(), array('interactive' => false));

        $this->assertEquals('called'.PHP_EOL, $tester->getDisplay(), 'Application runs the default set command if different from \'list\' command');
    }

    public function testSetRunCustomDefaultCommandWithOption()
    {
        $command = new \FooOptCommand();

        $application = new Application();
        $application->setAutoExit(false);
        $application->add($command);
        $application->setDefaultCommand($command->getName());

        $tester = new ApplicationTester($application);
        $tester->run(array('--fooopt' => 'opt'), array('interactive' => false));

        $this->assertEquals('called'.PHP_EOL.'opt'.PHP_EOL, $tester->getDisplay(), 'Application runs the default set command if different from \'list\' command');
    }

    public function testSetRunCustomSingleCommand()
    {
        $command = new \FooCommand();

        $application = new Application();
        $application->setAutoExit(false);
        $application->add($command);
        $application->setDefaultCommand($command->getName(), true);

        $tester = new ApplicationTester($application);

        $tester->run(array());
        $this->assertContains('called', $tester->getDisplay());

        $tester->run(array('--help' => true));
        $this->assertContains('The foo:bar command', $tester->getDisplay());
    }

    /**
     * @requires function posix_isatty
     */
    public function testCanCheckIfTerminalIsInteractive()
    {
        $application = new CustomDefaultCommandApplication();
        $application->setAutoExit(false);

        $tester = new ApplicationTester($application);
        $tester->run(array('command' => 'help'));

        $this->assertFalse($tester->getInput()->hasParameterOption(array('--no-interaction', '-n')));

        $inputStream = $tester->getInput()->getStream();
        $this->assertEquals($tester->getInput()->isInteractive(), @posix_isatty($inputStream));
    }

    public function testRunLazyCommandService()
    {
        $container = new ContainerBuilder();
        $container->addCompilerPass(new AddConsoleCommandPass());
        $container
            ->register('lazy-command', LazyCommand::class)
            ->addTag('console.command', array('command' => 'lazy:command'))
            ->addTag('console.command', array('command' => 'lazy:alias'))
            ->addTag('console.command', array('command' => 'lazy:alias2'));
        $container->compile();

        $application = new Application();
        $application->setCommandLoader($container->get('console.command_loader'));
        $application->setAutoExit(false);

        $tester = new ApplicationTester($application);

        $tester->run(array('command' => 'lazy:command'));
        $this->assertSame("lazy-command called\n", $tester->getDisplay(true));

        $tester->run(array('command' => 'lazy:alias'));
        $this->assertSame("lazy-command called\n", $tester->getDisplay(true));

        $tester->run(array('command' => 'lazy:alias2'));
        $this->assertSame("lazy-command called\n", $tester->getDisplay(true));

        $command = $application->get('lazy:command');
        $this->assertSame(array('lazy:alias', 'lazy:alias2'), $command->getAliases());
    }

    /**
     * @expectedException \Symfony\Component\Console\Exception\CommandNotFoundException
     */
    public function testGetDisabledLazyCommand()
    {
        $application = new Application();
        $application->setCommandLoader(new FactoryCommandLoader(array('disabled' => function () { return new DisabledCommand(); })));
        $application->get('disabled');
    }

    public function testHasReturnsFalseForDisabledLazyCommand()
    {
        $application = new Application();
        $application->setCommandLoader(new FactoryCommandLoader(array('disabled' => function () { return new DisabledCommand(); })));
        $this->assertFalse($application->has('disabled'));
    }

    public function testAllExcludesDisabledLazyCommand()
    {
        $application = new Application();
        $application->setCommandLoader(new FactoryCommandLoader(array('disabled' => function () { return new DisabledCommand(); })));
        $this->assertArrayNotHasKey('disabled', $application->all());
    }

    protected function getDispatcher($skipCommand = false)
    {
        $dispatcher = new EventDispatcher();
        $dispatcher->addListener('console.command', function (ConsoleCommandEvent $event) use ($skipCommand) {
            $event->getOutput()->write('before.');

            if ($skipCommand) {
                $event->disableCommand();
            }
        });
        $dispatcher->addListener('console.terminate', function (ConsoleTerminateEvent $event) use ($skipCommand) {
            $event->getOutput()->writeln('after.');

            if (!$skipCommand) {
                $event->setExitCode(ConsoleCommandEvent::RETURN_CODE_DISABLED);
            }
        });
        $dispatcher->addListener('console.error', function (ConsoleErrorEvent $event) {
            $event->getOutput()->write('error.');

            $event->setError(new \LogicException('error.', $event->getExitCode(), $event->getError()));
        });

        return $dispatcher;
    }

    /**
     * @requires PHP 7
     */
    public function testErrorIsRethrownIfNotHandledByConsoleErrorEventWithCatchingEnabled()
    {
        $application = new Application();
        $application->setAutoExit(false);
        $application->setDispatcher(new EventDispatcher());

        $application->register('dym')->setCode(function (InputInterface $input, OutputInterface $output) {
            new \UnknownClass();
        });

        $tester = new ApplicationTester($application);

        try {
            $tester->run(array('command' => 'dym'));
            $this->fail('->run() should rethrow PHP errors if not handled via ConsoleErrorEvent.');
        } catch (\Error $e) {
            $this->assertSame($e->getMessage(), 'Class \'UnknownClass\' not found');
        }
    }

    protected function tearDown()
    {
        putenv('SHELL_VERBOSITY');
        unset($_ENV['SHELL_VERBOSITY']);
        unset($_SERVER['SHELL_VERBOSITY']);
    }
}

class CustomApplication extends Application
{
    /**
     * Overwrites the default input definition.
     *
     * @return InputDefinition An InputDefinition instance
     */
    protected function getDefaultInputDefinition()
    {
        return new InputDefinition(array(new InputOption('--custom', '-c', InputOption::VALUE_NONE, 'Set the custom input definition.')));
    }

    /**
     * Gets the default helper set with the helpers that should always be available.
     *
     * @return HelperSet A HelperSet instance
     */
    protected function getDefaultHelperSet()
    {
        return new HelperSet(array(new FormatterHelper()));
    }
}

class CustomDefaultCommandApplication extends Application
{
    /**
     * Overwrites the constructor in order to set a different default command.
     */
    public function __construct()
    {
        parent::__construct();

        $command = new \FooCommand();
        $this->add($command);
        $this->setDefaultCommand($command->getName());
    }
}

class LazyCommand extends Command
{
    public function execute(InputInterface $input, OutputInterface $output)
    {
        $output->writeln('lazy-command called');
    }
}

class DisabledCommand extends Command
{
    public function isEnabled()
    {
        return false;
    }
}
