CommandTest.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\Command;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Helper\FormatterHelper;
use Symfony\Component\Console\Application;
use Symfony\Component\Console\Input\InputDefinition;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\StringInput;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Output\NullOutput;
use Symfony\Component\Console\Tester\CommandTester;

class CommandTest extends \PHPUnit_Framework_TestCase
{
    protected static $fixturesPath;

    public static function setUpBeforeClass()
    {
        self::$fixturesPath = __DIR__.'/../Fixtures/';
        require_once self::$fixturesPath.'/TestCommand.php';
    }

    public function testConstructor()
    {
        try {
            $command = new Command();
            $this->fail('__construct() throws a \LogicException if the name is null');
        } catch (\Exception $e) {
            $this->assertInstanceOf('\LogicException', $e, '__construct() throws a \LogicException if the name is null');
            $this->assertEquals('The command name cannot be empty.', $e->getMessage(), '__construct() throws a \LogicException if the name is null');
        }
        $command = new Command('foo:bar');
        $this->assertEquals('foo:bar', $command->getName(), '__construct() takes the command name as its first argument');
    }

    public function testSetApplication()
    {
        $application = new Application();
        $command = new \TestCommand();
        $command->setApplication($application);
        $this->assertEquals($application, $command->getApplication(), '->setApplication() sets the current application');
    }

    public function testSetGetDefinition()
    {
        $command = new \TestCommand();
        $ret = $command->setDefinition($definition = new InputDefinition());
        $this->assertEquals($command, $ret, '->setDefinition() implements a fluent interface');
        $this->assertEquals($definition, $command->getDefinition(), '->setDefinition() sets the current InputDefinition instance');
        $command->setDefinition(array(new InputArgument('foo'), new InputOption('bar')));
        $this->assertTrue($command->getDefinition()->hasArgument('foo'), '->setDefinition() also takes an array of InputArguments and InputOptions as an argument');
        $this->assertTrue($command->getDefinition()->hasOption('bar'), '->setDefinition() also takes an array of InputArguments and InputOptions as an argument');
        $command->setDefinition(new InputDefinition());
    }

    public function testAddArgument()
    {
        $command = new \TestCommand();
        $ret = $command->addArgument('foo');
        $this->assertEquals($command, $ret, '->addArgument() implements a fluent interface');
        $this->assertTrue($command->getDefinition()->hasArgument('foo'), '->addArgument() adds an argument to the command');
    }

    public function testAddOption()
    {
        $command = new \TestCommand();
        $ret = $command->addOption('foo');
        $this->assertEquals($command, $ret, '->addOption() implements a fluent interface');
        $this->assertTrue($command->getDefinition()->hasOption('foo'), '->addOption() adds an option to the command');
    }

    public function testGetNamespaceGetNameSetName()
    {
        $command = new \TestCommand();
        $this->assertEquals('namespace:name', $command->getName(), '->getName() returns the command name');
        $command->setName('foo');
        $this->assertEquals('foo', $command->getName(), '->setName() sets the command name');

        $ret = $command->setName('foobar:bar');
        $this->assertEquals($command, $ret, '->setName() implements a fluent interface');
        $this->assertEquals('foobar:bar', $command->getName(), '->setName() sets the command name');

        try {
            $command->setName('');
            $this->fail('->setName() throws an \InvalidArgumentException if the name is empty');
        } catch (\Exception $e) {
            $this->assertInstanceOf('\InvalidArgumentException', $e, '->setName() throws an \InvalidArgumentException if the name is empty');
            $this->assertEquals('Command name "" is invalid.', $e->getMessage(), '->setName() throws an \InvalidArgumentException if the name is empty');
        }

        try {
            $command->setName('foo:');
            $this->fail('->setName() throws an \InvalidArgumentException if the name is empty');
        } catch (\Exception $e) {
            $this->assertInstanceOf('\InvalidArgumentException', $e, '->setName() throws an \InvalidArgumentException if the name is empty');
            $this->assertEquals('Command name "foo:" is invalid.', $e->getMessage(), '->setName() throws an \InvalidArgumentException if the name is empty');
        }
    }

    public function testGetSetDescription()
    {
        $command = new \TestCommand();
        $this->assertEquals('description', $command->getDescription(), '->getDescription() returns the description');
        $ret = $command->setDescription('description1');
        $this->assertEquals($command, $ret, '->setDescription() implements a fluent interface');
        $this->assertEquals('description1', $command->getDescription(), '->setDescription() sets the description');
    }

    public function testGetSetHelp()
    {
        $command = new \TestCommand();
        $this->assertEquals('help', $command->getHelp(), '->getHelp() returns the help');
        $ret = $command->setHelp('help1');
        $this->assertEquals($command, $ret, '->setHelp() implements a fluent interface');
        $this->assertEquals('help1', $command->getHelp(), '->setHelp() sets the help');
    }

    public function testGetProcessedHelp()
    {
        $command = new \TestCommand();
        $command->setHelp('The %command.name% command does... Example: php %command.full_name%.');
        $this->assertContains('The namespace:name command does...', $command->getProcessedHelp(), '->getProcessedHelp() replaces %command.name% correctly');
        $this->assertNotContains('%command.full_name%', $command->getProcessedHelp(), '->getProcessedHelp() replaces %command.full_name%');
    }

    public function testGetSetAliases()
    {
        $command = new \TestCommand();
        $this->assertEquals(array('name'), $command->getAliases(), '->getAliases() returns the aliases');
        $ret = $command->setAliases(array('name1'));
        $this->assertEquals($command, $ret, '->setAliases() implements a fluent interface');
        $this->assertEquals(array('name1'), $command->getAliases(), '->setAliases() sets the aliases');
    }

    public function testGetSynopsis()
    {
        $command = new \TestCommand();
        $command->addOption('foo');
        $command->addArgument('foo');
        $this->assertEquals('namespace:name [--foo] [foo]', $command->getSynopsis(), '->getSynopsis() returns the synopsis');
    }

    public function testGetHelper()
    {
        $application = new Application();
        $command = new \TestCommand();
        $command->setApplication($application);
        $formatterHelper = new FormatterHelper();
        $this->assertEquals($formatterHelper->getName(), $command->getHelper('formatter')->getName(), '->getHelper() returns the correct helper');
    }

    public function testGet()
    {
        $application = new Application();
        $command = new \TestCommand();
        $command->setApplication($application);
        $formatterHelper = new FormatterHelper();
        $this->assertEquals($formatterHelper->getName(), $command->getHelper('formatter')->getName(), '->__get() returns the correct helper');
    }

    public function testMergeApplicationDefinition()
    {
        $application1 = new Application();
        $application1->getDefinition()->addArguments(array(new InputArgument('foo')));
        $application1->getDefinition()->addOptions(array(new InputOption('bar')));
        $command = new \TestCommand();
        $command->setApplication($application1);
        $command->setDefinition($definition = new InputDefinition(array(new InputArgument('bar'), new InputOption('foo'))));

        $r = new \ReflectionObject($command);
        $m = $r->getMethod('mergeApplicationDefinition');
        $m->setAccessible(true);
        $m->invoke($command);
        $this->assertTrue($command->getDefinition()->hasArgument('foo'), '->mergeApplicationDefinition() merges the application arguments and the command arguments');
        $this->assertTrue($command->getDefinition()->hasArgument('bar'), '->mergeApplicationDefinition() merges the application arguments and the command arguments');
        $this->assertTrue($command->getDefinition()->hasOption('foo'), '->mergeApplicationDefinition() merges the application options and the command options');
        $this->assertTrue($command->getDefinition()->hasOption('bar'), '->mergeApplicationDefinition() merges the application options and the command options');

        $m->invoke($command);
        $this->assertEquals(3, $command->getDefinition()->getArgumentCount(), '->mergeApplicationDefinition() does not try to merge twice the application arguments and options');
    }

    public function testMergeApplicationDefinitionWithoutArgsThenWithArgsAddsArgs()
    {
        $application1 = new Application();
        $application1->getDefinition()->addArguments(array(new InputArgument('foo')));
        $application1->getDefinition()->addOptions(array(new InputOption('bar')));
        $command = new \TestCommand();
        $command->setApplication($application1);
        $command->setDefinition($definition = new InputDefinition(array()));

        $r = new \ReflectionObject($command);
        $m = $r->getMethod('mergeApplicationDefinition');
        $m->setAccessible(true);
        $m->invoke($command, false);
        $this->assertTrue($command->getDefinition()->hasOption('bar'), '->mergeApplicationDefinition(false) merges the application and the commmand options');
        $this->assertFalse($command->getDefinition()->hasArgument('foo'), '->mergeApplicationDefinition(false) does not merge the application arguments');

        $m->invoke($command, true);
        $this->assertTrue($command->getDefinition()->hasArgument('foo'), '->mergeApplicationDefinition(true) merges the application arguments and the command arguments');

        $m->invoke($command);
        $this->assertEquals(2, $command->getDefinition()->getArgumentCount(), '->mergeApplicationDefinition() does not try to merge twice the application arguments');
    }

    public function testRun()
    {
        $command = new \TestCommand();
        $tester = new CommandTester($command);
        try {
            $tester->execute(array('--bar' => true));
            $this->fail('->run() throws a \InvalidArgumentException when the input does not validate the current InputDefinition');
        } catch (\Exception $e) {
            $this->assertInstanceOf('\InvalidArgumentException', $e, '->run() throws a \InvalidArgumentException when the input does not validate the current InputDefinition');
            $this->assertEquals('The "--bar" option does not exist.', $e->getMessage(), '->run() throws a \InvalidArgumentException when the input does not validate the current InputDefinition');
        }

        $tester->execute(array(), array('interactive' => true));
        $this->assertEquals('interact called'.PHP_EOL.'execute called'.PHP_EOL, $tester->getDisplay(), '->run() calls the interact() method if the input is interactive');

        $tester->execute(array(), array('interactive' => false));
        $this->assertEquals('execute called'.PHP_EOL, $tester->getDisplay(), '->run() does not call the interact() method if the input is not interactive');

        $command = new Command('foo');
        try {
            $command->run(new StringInput(''), new NullOutput());
            $this->fail('->run() throws a \LogicException if the execute() method has not been overridden and no code has been provided');
        } catch (\Exception $e) {
            $this->assertInstanceOf('\LogicException', $e, '->run() throws a \LogicException if the execute() method has not been overridden and no code has been provided');
            $this->assertEquals('You must override the execute() method in the concrete command class.', $e->getMessage(), '->run() throws a \LogicException if the execute() method has not been overridden and no code has been provided');
        }
    }

    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();

        $this->assertSame(0, $command->run(new StringInput(''), new NullOutput()));
    }

    public function testSetCode()
    {
        $command = new \TestCommand();
        $ret = $command->setCode(function (InputInterface $input, OutputInterface $output) {
            $output->writeln('from the code...');
        });
        $this->assertEquals($command, $ret, '->setCode() implements a fluent interface');
        $tester = new CommandTester($command);
        $tester->execute(array());
        $this->assertEquals('interact called'.PHP_EOL.'from the code...'.PHP_EOL, $tester->getDisplay());
    }

    public function testSetCodeWithNonClosureCallable()
    {
        $command = new \TestCommand();
        $ret = $command->setCode(array($this, 'callableMethodCommand'));
        $this->assertEquals($command, $ret, '->setCode() implements a fluent interface');
        $tester = new CommandTester($command);
        $tester->execute(array());
        $this->assertEquals('interact called'.PHP_EOL.'from the code...'.PHP_EOL, $tester->getDisplay());
    }

    /**
     * @expectedException \InvalidArgumentException
     * @expectedExceptionMessage Invalid callable provided to Command::setCode.
     */
    public function testSetCodeWithNonCallable()
    {
        $command = new \TestCommand();
        $command->setCode(array($this, 'nonExistentMethod'));
    }

    public function callableMethodCommand(InputInterface $input, OutputInterface $output)
    {
        $output->writeln('from the code...');
    }

    public function testAsText()
    {
        $command = new \TestCommand();
        $command->setApplication(new Application());
        $tester = new CommandTester($command);
        $tester->execute(array('command' => $command->getName()));
        $this->assertStringEqualsFile(self::$fixturesPath.'/command_astext.txt', $command->asText(), '->asText() returns a text representation of the command');
    }

    public function testAsXml()
    {
        $command = new \TestCommand();
        $command->setApplication(new Application());
        $tester = new CommandTester($command);
        $tester->execute(array('command' => $command->getName()));
        $this->assertXmlStringEqualsXmlFile(self::$fixturesPath.'/command_asxml.txt', $command->asXml(), '->asXml() returns an XML representation of the command');
    }
}