<?php

/*
 * This file is part of Composer.
 *
 * (c) Nils Adermann <naderman@naderman.de>
 *     Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Composer\Test\Autoload;

use Composer\Autoload\AutoloadGenerator;
use Composer\Filter\PlatformRequirementFilter\PlatformRequirementFilterFactory;
use Composer\Package\Link;
use Composer\Package\Version\VersionParser;
use Composer\Semver\Constraint\Constraint;
use Composer\Semver\Constraint\MatchAllConstraint;
use Composer\Util\Filesystem;
use Composer\Package\AliasPackage;
use Composer\Package\Package;
use Composer\Package\RootPackage;
use Composer\Test\TestCase;
use Composer\Script\ScriptEvents;
use Composer\Repository\InstalledRepositoryInterface;
use Composer\Installer\InstallationManager;
use Composer\Config;
use Composer\EventDispatcher\EventDispatcher;
use Composer\Util\Platform;
use PHPUnit\Framework\MockObject\MockObject;

class AutoloadGeneratorTest extends TestCase
{
    /**
     * @var string
     */
    public $vendorDir;

    /**
     * @var Config|MockObject
     */
    private $config;

    /**
     * @var string
     */
    private $workingDir;

    /**
     * @var string
     */
    private $origDir;

    /**
     * @var InstallationManager&MockObject
     */
    private $im;

    /**
     * @var InstalledRepositoryInterface&MockObject
     */
    private $repository;

    /**
     * @var AutoloadGenerator
     */
    private $generator;

    /**
     * @var Filesystem
     */
    private $fs;

    /**
     * @var EventDispatcher&MockObject
     */
    private $eventDispatcher;

    /**
     * Map of setting name => return value configuration for the stub Config
     * object.
     *
     * Note: must be public for compatibility with PHP 5.3 runtimes where
     * closures cannot access private members of the classes they are created
     * in.
     * @var array<string, callable|boolean>
     */
    public $configValueMap;

    protected function setUp(): void
    {
        $this->fs = new Filesystem;

        $this->workingDir = $this->getUniqueTmpDirectory();
        $this->vendorDir = $this->workingDir.DIRECTORY_SEPARATOR.'composer-test-autoload';
        $this->ensureDirectoryExistsAndClear($this->vendorDir);

        $this->config = $this->getMockBuilder('Composer\Config')->getMock();

        $this->configValueMap = array(
            'vendor-dir' => function () {
                return $this->vendorDir;
            },
            'platform-check' => function () {
                return true;
            },
        );

        $this->config->expects($this->atLeastOnce())
            ->method('get')
            ->will($this->returnCallback(function ($arg) {
                $ret = null;
                if (isset($this->configValueMap[$arg])) {
                    $ret = $this->configValueMap[$arg];
                    if (is_callable($ret)) {
                        $ret = $ret();
                    }
                }

                return $ret;
            }));

        $this->origDir = getcwd();
        chdir($this->workingDir);

        $this->im = $this->getMockBuilder('Composer\Installer\InstallationManager')
            ->disableOriginalConstructor()
            ->getMock();
        $this->im->expects($this->any())
            ->method('getInstallPath')
            ->will($this->returnCallback(function ($package) {
                $targetDir = $package->getTargetDir();

                return $this->vendorDir.'/'.$package->getName() . ($targetDir ? '/'.$targetDir : '');
            }));
        $this->repository = $this->getMockBuilder('Composer\Repository\InstalledRepositoryInterface')->getMock();
        $this->repository->expects($this->any())
            ->method('getDevPackageNames')
            ->willReturn(array());

        $this->eventDispatcher = $this->getMockBuilder('Composer\EventDispatcher\EventDispatcher')
            ->disableOriginalConstructor()
            ->getMock();

        $this->generator = new AutoloadGenerator($this->eventDispatcher);
    }

    protected function tearDown(): void
    {
        parent::tearDown();
        chdir($this->origDir);

        if (is_dir($this->workingDir)) {
            $this->fs->removeDirectory($this->workingDir);
        }

        if (is_dir($this->vendorDir)) {
            $this->fs->removeDirectory($this->vendorDir);
        }
    }

    public function testRootPackageAutoloading(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array(
                'Main' => 'src/',
                'Lala' => array('src/', 'lib/'),
            ),
            'psr-4' => array(
                'Acme\Fruit\\' => 'src-fruit/',
                'Acme\Cake\\' => array('src-cake/', 'lib-cake/'),
            ),
            'classmap' => array('composersrc/'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->workingDir.'/composer');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src/Lala/Test');
        $this->fs->ensureDirectoryExists($this->workingDir.'/lib');
        file_put_contents($this->workingDir.'/src/Lala/ClassMapMain.php', '<?php namespace Lala; class ClassMapMain {}');
        file_put_contents($this->workingDir.'/src/Lala/Test/ClassMapMainTest.php', '<?php namespace Lala\Test; class ClassMapMainTest {}');

        $this->fs->ensureDirectoryExists($this->workingDir.'/src-fruit');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src-cake');
        $this->fs->ensureDirectoryExists($this->workingDir.'/lib-cake');
        file_put_contents($this->workingDir.'/src-cake/ClassMapBar.php', '<?php namespace Acme\Cake; class ClassMapBar {}');

        $this->fs->ensureDirectoryExists($this->workingDir.'/composersrc');
        file_put_contents($this->workingDir.'/composersrc/foo.php', '<?php class ClassMapFoo {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_1');

        // Assert that autoload_namespaces.php was correctly generated.
        $this->assertAutoloadFiles('main', $this->vendorDir.'/composer');

        // Assert that autoload_psr4.php was correctly generated.
        $this->assertAutoloadFiles('psr4', $this->vendorDir.'/composer', 'psr4');

        // Assert that autoload_classmap.php was correctly generated.
        $this->assertAutoloadFiles('classmap', $this->vendorDir.'/composer', 'classmap');
    }

    public function testRootPackageDevAutoloading(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array(
                'Main' => 'src/',
            ),
        ));
        $package->setDevAutoload(array(
            'files' => array('devfiles/foo.php'),
            'psr-0' => array(
                'Main' => 'tests/',
            ),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->workingDir.'/composer');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src/Main');
        file_put_contents($this->workingDir.'/src/Main/ClassMain.php', '<?php namespace Main; class ClassMain {}');

        $this->fs->ensureDirectoryExists($this->workingDir.'/devfiles');
        file_put_contents($this->workingDir.'/devfiles/foo.php', '<?php function foo() { echo "foo"; }');

        // generate autoload files with the dev mode set to true
        $this->generator->setDevMode(true);
        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_1');

        // check standard autoload
        $this->assertAutoloadFiles('main5', $this->vendorDir.'/composer');
        $this->assertAutoloadFiles('classmap7', $this->vendorDir.'/composer', 'classmap');

        // make sure dev autoload is correctly dumped
        $this->assertAutoloadFiles('files2', $this->vendorDir.'/composer', 'files');
    }

    public function testRootPackageDevAutoloadingDisabledByDefault(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array(
                'Main' => 'src/',
            ),
        ));
        $package->setDevAutoload(array(
            'files' => array('devfiles/foo.php'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->workingDir.'/composer');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src/Main');
        file_put_contents($this->workingDir.'/src/Main/ClassMain.php', '<?php namespace Main; class ClassMain {}');

        $this->fs->ensureDirectoryExists($this->workingDir.'/devfiles');
        file_put_contents($this->workingDir.'/devfiles/foo.php', '<?php function foo() { echo "foo"; }');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_1');

        // check standard autoload
        $this->assertAutoloadFiles('main4', $this->vendorDir.'/composer');
        $this->assertAutoloadFiles('classmap7', $this->vendorDir.'/composer', 'classmap');

        // make sure dev autoload is disabled when dev mode is set to false
        $this->assertFalse(is_file($this->vendorDir.'/composer/autoload_files.php'));
    }

    public function testVendorDirSameAsWorkingDir(): void
    {
        $this->vendorDir = $this->workingDir;

        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array('Main' => 'src/', 'Lala' => 'src/'),
            'psr-4' => array(
                'Acme\Fruit\\' => 'src-fruit/',
                'Acme\Cake\\' => array('src-cake/', 'lib-cake/'),
            ),
            'classmap' => array('composersrc/'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/src/Main');
        file_put_contents($this->vendorDir.'/src/Main/Foo.php', '<?php namespace Main; class Foo {}');

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composersrc');
        file_put_contents($this->vendorDir.'/composersrc/foo.php', '<?php class ClassMapFoo {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_2');
        $this->assertAutoloadFiles('main3', $this->vendorDir.'/composer');
        $this->assertAutoloadFiles('psr4_3', $this->vendorDir.'/composer', 'psr4');
        $this->assertAutoloadFiles('classmap3', $this->vendorDir.'/composer', 'classmap');
    }

    public function testRootPackageAutoloadingAlternativeVendorDir(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array('Main' => 'src/', 'Lala' => 'src/'),
            'psr-4' => array(
                'Acme\Fruit\\' => 'src-fruit/',
                'Acme\Cake\\' => array('src-cake/', 'lib-cake/'),
            ),
            'classmap' => array('composersrc/'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->vendorDir .= '/subdir';

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src');

        $this->fs->ensureDirectoryExists($this->workingDir.'/composersrc');
        file_put_contents($this->workingDir.'/composersrc/foo.php', '<?php class ClassMapFoo {}');
        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_3');
        $this->assertAutoloadFiles('main2', $this->vendorDir.'/composer');
        $this->assertAutoloadFiles('psr4_2', $this->vendorDir.'/composer', 'psr4');
        $this->assertAutoloadFiles('classmap2', $this->vendorDir.'/composer', 'classmap');
    }

    public function testRootPackageAutoloadingWithTargetDir(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array('Main\\Foo' => '', 'Main\\Bar' => ''),
            'classmap' => array('Main/Foo/src', 'lib'),
            'files' => array('foo.php', 'Main/Foo/bar.php'),
        ));
        $package->setTargetDir('Main/Foo/');

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/a');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src');
        $this->fs->ensureDirectoryExists($this->workingDir.'/lib');

        file_put_contents($this->workingDir.'/src/rootfoo.php', '<?php class ClassMapFoo {}');
        file_put_contents($this->workingDir.'/lib/rootbar.php', '<?php class ClassMapBar {}');
        file_put_contents($this->workingDir.'/foo.php', '<?php class FilesFoo {}');
        file_put_contents($this->workingDir.'/bar.php', '<?php class FilesBar {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, 'TargetDir');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_target_dir.php', $this->vendorDir.'/autoload.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_real_target_dir.php', $this->vendorDir.'/composer/autoload_real.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_static_target_dir.php', $this->vendorDir.'/composer/autoload_static.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_files_target_dir.php', $this->vendorDir.'/composer/autoload_files.php');
        $this->assertAutoloadFiles('classmap6', $this->vendorDir.'/composer', 'classmap');
    }

    public function testVendorsAutoloading(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $packages[] = $c = new AliasPackage($b, '1.2', '1.2');
        $a->setAutoload(array('psr-0' => array('A' => 'src/', 'A\\B' => 'lib/')));
        $b->setAutoload(array('psr-0' => array('B\\Sub\\Name' => 'src/')));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/lib');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/src');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_5');
        $this->assertAutoloadFiles('vendors', $this->vendorDir.'/composer');
        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated, even if empty.");
    }

    public function testNonDevAutoloadExclusionWithRecursion(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $a->setAutoload(array('psr-0' => array('A' => 'src/', 'A\\B' => 'lib/')));
        $a->setRequires(array(
            'b/b' => new Link('a/a', 'b/b', new MatchAllConstraint()),
        ));
        $b->setAutoload(array('psr-0' => array('B\\Sub\\Name' => 'src/')));
        $b->setRequires(array(
            'a/a' => new Link('b/b', 'a/a', new MatchAllConstraint()),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/lib');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/src');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_5');
        $this->assertAutoloadFiles('vendors', $this->vendorDir.'/composer');
        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated, even if empty.");
    }

    public function testNonDevAutoloadShouldIncludeReplacedPackages(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array('a/a' => new Link('a', 'a/a', new MatchAllConstraint())));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');

        $a->setRequires(array('b/c' => new Link('a/a', 'b/c', new MatchAllConstraint())));

        $b->setAutoload(array('psr-4' => array('B\\' => 'src/')));
        $b->setReplaces(
            array('b/c' => new Link('b/b', 'b/c', new Constraint('==', '1.0'), Link::TYPE_REPLACE))
        );

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/src/C');
        file_put_contents($this->vendorDir.'/b/b/src/C/C.php', '<?php namespace B\\C; class C {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_5');

        $this->assertEquals(
            array(
                'B\\C\\C' => $this->vendorDir.'/b/b/src/C/C.php',
                'Composer\\InstalledVersions' => $this->vendorDir . '/composer/InstalledVersions.php',
            ),
            include $this->vendorDir.'/composer/autoload_classmap.php'
        );
    }

    public function testNonDevAutoloadExclusionWithRecursionReplace(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $a->setAutoload(array('psr-0' => array('A' => 'src/', 'A\\B' => 'lib/')));
        $a->setRequires(array(
            'c/c' => new Link('a/a', 'c/c', new MatchAllConstraint()),
        ));
        $b->setAutoload(array('psr-0' => array('B\\Sub\\Name' => 'src/')));
        $b->setReplaces(array(
            'c/c' => new Link('b/b', 'c/c', new MatchAllConstraint()),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/lib');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/src');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_5');
        $this->assertAutoloadFiles('vendors', $this->vendorDir.'/composer');
        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated, even if empty.");
    }

    public function testNonDevAutoloadReplacesNestedRequirements(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $packages[] = $c = new Package('c/c', '1.0', '1.0');
        $packages[] = $d = new Package('d/d', '1.0', '1.0');
        $packages[] = $e = new Package('e/e', '1.0', '1.0');
        $a->setAutoload(array('classmap' => array('src/A.php')));
        $a->setRequires(array(
            'b/b' => new Link('a/a', 'b/b', new MatchAllConstraint()),
        ));
        $b->setAutoload(array('classmap' => array('src/B.php')));
        $b->setRequires(array(
            'e/e' => new Link('b/b', 'e/e', new MatchAllConstraint()),
        ));
        $c->setAutoload(array('classmap' => array('src/C.php')));
        $c->setReplaces(array(
            'b/b' => new Link('c/c', 'b/b', new MatchAllConstraint()),
        ));
        $c->setRequires(array(
            'd/d' => new Link('c/c', 'd/d', new MatchAllConstraint()),
        ));
        $d->setAutoload(array('classmap' => array('src/D.php')));
        $e->setAutoload(array('classmap' => array('src/E.php')));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/c/c/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/d/d/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/e/e/src');

        file_put_contents($this->vendorDir.'/a/a/src/A.php', '<?php class A {}');
        file_put_contents($this->vendorDir.'/b/b/src/B.php', '<?php class B {}');
        file_put_contents($this->vendorDir.'/c/c/src/C.php', '<?php class C {}');
        file_put_contents($this->vendorDir.'/d/d/src/D.php', '<?php class D {}');
        file_put_contents($this->vendorDir.'/e/e/src/E.php', '<?php class E {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_5');

        $this->assertAutoloadFiles('classmap9', $this->vendorDir.'/composer', 'classmap');
    }

    public function testPharAutoload(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
        ));

        $package->setAutoload(array(
            'psr-0' => array(
                'Foo' => 'foo.phar',
                'Bar' => 'dir/bar.phar/src',
            ),
            'psr-4' => array(
                'Baz\\' => 'baz.phar',
                'Qux\\' => 'dir/qux.phar/src',
            ),
        ));

        $vendorPackage = new Package('a/a', '1.0', '1.0');
        $vendorPackage->setAutoload(array(
            'psr-0' => array(
                'Lorem' => 'lorem.phar',
                'Ipsum' => 'dir/ipsum.phar/src',
            ),
            'psr-4' => array(
                'Dolor\\' => 'dolor.phar',
                'Sit\\' => 'dir/sit.phar/src',
            ),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array($vendorPackage)));

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, 'Phar');

        $this->assertAutoloadFiles('phar', $this->vendorDir . '/composer');
        $this->assertAutoloadFiles('phar_psr4', $this->vendorDir . '/composer', 'psr4');
        $this->assertAutoloadFiles('phar_static', $this->vendorDir . '/composer', 'static');
    }

    public function testPSRToClassMapIgnoresNonExistingDir(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');

        $package->setAutoload(array(
            'psr-0' => array('Prefix' => 'foo/bar/non/existing/'),
            'psr-4' => array('Prefix\\' => 'foo/bar/non/existing2/'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_8');
        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated.");
        $this->assertEquals(
            array(
                'Composer\\InstalledVersions' => $this->vendorDir.'/composer/InstalledVersions.php',
            ),
            include $this->vendorDir.'/composer/autoload_classmap.php'
        );
    }

    public function testPSRToClassMapIgnoresNonPSRClasses(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');

        $package->setAutoload(array(
            'psr-0' => array('psr0_' => 'psr0/'),
            'psr-4' => array('psr4\\' => 'psr4/'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->workingDir.'/psr0/psr0');
        $this->fs->ensureDirectoryExists($this->workingDir.'/psr4');
        file_put_contents($this->workingDir.'/psr0/psr0/match.php', '<?php class psr0_match {}');
        file_put_contents($this->workingDir.'/psr0/psr0/badfile.php', '<?php class psr0_badclass {}');
        file_put_contents($this->workingDir.'/psr4/match.php', '<?php namespace psr4; class match {}');
        file_put_contents($this->workingDir.'/psr4/badfile.php', '<?php namespace psr4; class badclass {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_1');
        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated.");

        $expectedClassmap = <<<EOF
<?php

// autoload_classmap.php @generated by Composer

\$vendorDir = dirname(__DIR__);
\$baseDir = dirname(\$vendorDir);

return array(
    'Composer\\\\InstalledVersions' => \$vendorDir . '/composer/InstalledVersions.php',
    'psr0_match' => \$baseDir . '/psr0/psr0/match.php',
    'psr4\\\\match' => \$baseDir . '/psr4/match.php',
);

EOF;
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_classmap.php', $expectedClassmap);
    }

    public function testVendorsClassMapAutoloading(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $a->setAutoload(array('classmap' => array('src/')));
        $b->setAutoload(array('classmap' => array('src/', 'lib/')));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/lib');
        file_put_contents($this->vendorDir.'/a/a/src/a.php', '<?php class ClassMapFoo {}');
        file_put_contents($this->vendorDir.'/b/b/src/b.php', '<?php class ClassMapBar {}');
        file_put_contents($this->vendorDir.'/b/b/lib/c.php', '<?php class ClassMapBaz {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_6');
        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated.");
        $this->assertEquals(
            array(
                'ClassMapBar' => $this->vendorDir.'/b/b/src/b.php',
                'ClassMapBaz' => $this->vendorDir.'/b/b/lib/c.php',
                'ClassMapFoo' => $this->vendorDir.'/a/a/src/a.php',
                'Composer\\InstalledVersions' => $this->vendorDir.'/composer/InstalledVersions.php',
            ),
            include $this->vendorDir.'/composer/autoload_classmap.php'
        );
        $this->assertAutoloadFiles('classmap4', $this->vendorDir.'/composer', 'classmap');
    }

    public function testVendorsClassMapAutoloadingWithTargetDir(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $a->setAutoload(array('classmap' => array('target/src/', 'lib/')));
        $a->setTargetDir('target');
        $b->setAutoload(array('classmap' => array('src/')));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/target/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/target/lib');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/src');
        file_put_contents($this->vendorDir.'/a/a/target/src/a.php', '<?php class ClassMapFoo {}');
        file_put_contents($this->vendorDir.'/a/a/target/lib/b.php', '<?php class ClassMapBar {}');
        file_put_contents($this->vendorDir.'/b/b/src/c.php', '<?php class ClassMapBaz {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_6');
        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated.");
        $this->assertEquals(
            array(
                'ClassMapBar' => $this->vendorDir.'/a/a/target/lib/b.php',
                'ClassMapBaz' => $this->vendorDir.'/b/b/src/c.php',
                'ClassMapFoo' => $this->vendorDir.'/a/a/target/src/a.php',
                'Composer\\InstalledVersions' => $this->vendorDir.'/composer/InstalledVersions.php',
            ),
            include $this->vendorDir.'/composer/autoload_classmap.php'
        );
    }

    public function testClassMapAutoloadingEmptyDirAndExactFile(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
            'c/c' => new Link('a', 'c/c', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $packages[] = $c = new Package('c/c', '1.0', '1.0');
        $a->setAutoload(array('classmap' => array('')));
        $b->setAutoload(array('classmap' => array('test.php')));
        $c->setAutoload(array('classmap' => array('./')));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/c/c/foo');
        file_put_contents($this->vendorDir.'/a/a/src/a.php', '<?php class ClassMapFoo {}');
        file_put_contents($this->vendorDir.'/b/b/test.php', '<?php class ClassMapBar {}');
        file_put_contents($this->vendorDir.'/c/c/foo/test.php', '<?php class ClassMapBaz {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_7');
        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated.");
        $this->assertEquals(
            array(
                'ClassMapBar' => $this->vendorDir.'/b/b/test.php',
                'ClassMapBaz' => $this->vendorDir.'/c/c/foo/test.php',
                'ClassMapFoo' => $this->vendorDir.'/a/a/src/a.php',
                'Composer\\InstalledVersions' => $this->vendorDir.'/composer/InstalledVersions.php',
            ),
            include $this->vendorDir.'/composer/autoload_classmap.php'
        );
        $this->assertAutoloadFiles('classmap5', $this->vendorDir.'/composer', 'classmap');
        $this->assertStringNotContainsString('$loader->setClassMapAuthoritative(true);', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
        $this->assertStringNotContainsString('$loader->setApcuPrefix(', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
    }

    public function testClassMapAutoloadingAuthoritativeAndApcu(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
            'c/c' => new Link('a', 'c/c', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $packages[] = $c = new Package('c/c', '1.0', '1.0');
        $a->setAutoload(array('psr-4' => array('' => 'src/')));
        $b->setAutoload(array('psr-4' => array('' => './')));
        $c->setAutoload(array('psr-4' => array('' => 'foo/')));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/c/c/foo');
        file_put_contents($this->vendorDir.'/a/a/src/ClassMapFoo.php', '<?php class ClassMapFoo {}');
        file_put_contents($this->vendorDir.'/b/b/ClassMapBar.php', '<?php class ClassMapBar {}');
        file_put_contents($this->vendorDir.'/c/c/foo/ClassMapBaz.php', '<?php class ClassMapBaz {}');

        $this->generator->setClassMapAuthoritative(true);
        $this->generator->setApcu(true);
        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_7');

        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated.");
        $this->assertEquals(
            array(
                'ClassMapBar' => $this->vendorDir.'/b/b/ClassMapBar.php',
                'ClassMapBaz' => $this->vendorDir.'/c/c/foo/ClassMapBaz.php',
                'ClassMapFoo' => $this->vendorDir.'/a/a/src/ClassMapFoo.php',
                'Composer\\InstalledVersions' => $this->vendorDir.'/composer/InstalledVersions.php',
            ),
            include $this->vendorDir.'/composer/autoload_classmap.php'
        );
        $this->assertAutoloadFiles('classmap8', $this->vendorDir.'/composer', 'classmap');

        $this->assertStringContainsString('$loader->setClassMapAuthoritative(true);', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
        $this->assertStringContainsString('$loader->setApcuPrefix(', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
    }

    public function testClassMapAutoloadingAuthoritativeAndApcuPrefix(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
            'c/c' => new Link('a', 'c/c', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $packages[] = $c = new Package('c/c', '1.0', '1.0');
        $a->setAutoload(array('psr-4' => array('' => 'src/')));
        $b->setAutoload(array('psr-4' => array('' => './')));
        $c->setAutoload(array('psr-4' => array('' => 'foo/')));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/c/c/foo');
        file_put_contents($this->vendorDir.'/a/a/src/ClassMapFoo.php', '<?php class ClassMapFoo {}');
        file_put_contents($this->vendorDir.'/b/b/ClassMapBar.php', '<?php class ClassMapBar {}');
        file_put_contents($this->vendorDir.'/c/c/foo/ClassMapBaz.php', '<?php class ClassMapBaz {}');

        $this->generator->setClassMapAuthoritative(true);
        $this->generator->setApcu(true, 'custom\'Prefix');
        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, '_7');

        $this->assertFileExists($this->vendorDir.'/composer/autoload_classmap.php', "ClassMap file needs to be generated.");
        $this->assertEquals(
            array(
                'ClassMapBar' => $this->vendorDir.'/b/b/ClassMapBar.php',
                'ClassMapBaz' => $this->vendorDir.'/c/c/foo/ClassMapBaz.php',
                'ClassMapFoo' => $this->vendorDir.'/a/a/src/ClassMapFoo.php',
                'Composer\\InstalledVersions' => $this->vendorDir.'/composer/InstalledVersions.php',
            ),
            include $this->vendorDir.'/composer/autoload_classmap.php'
        );
        $this->assertAutoloadFiles('classmap8', $this->vendorDir.'/composer', 'classmap');

        $this->assertStringContainsString('$loader->setClassMapAuthoritative(true);', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
        $this->assertStringContainsString('$loader->setApcuPrefix(\'custom\\\'Prefix\');', file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
    }

    public function testFilesAutoloadGeneration(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array('files' => array('root.php')));
        $package->setRequires(array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
            'c/c' => new Link('a', 'c/c', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $packages[] = $c = new Package('c/c', '1.0', '1.0');
        $a->setAutoload(array('files' => array('test.php')));
        $b->setAutoload(array('files' => array('test2.php')));
        $c->setAutoload(array('files' => array('test3.php', 'foo/bar/test4.php')));
        $c->setTargetDir('foo/bar');

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/c/c/foo/bar');
        file_put_contents($this->vendorDir.'/a/a/test.php', '<?php function testFilesAutoloadGeneration1() {}');
        file_put_contents($this->vendorDir.'/b/b/test2.php', '<?php function testFilesAutoloadGeneration2() {}');
        file_put_contents($this->vendorDir.'/c/c/foo/bar/test3.php', '<?php function testFilesAutoloadGeneration3() {}');
        file_put_contents($this->vendorDir.'/c/c/foo/bar/test4.php', '<?php function testFilesAutoloadGeneration4() {}');
        file_put_contents($this->workingDir.'/root.php', '<?php function testFilesAutoloadGenerationRoot() {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, 'FilesAutoload');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_functions.php', $this->vendorDir.'/autoload.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_real_functions.php', $this->vendorDir.'/composer/autoload_real.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_static_functions.php', $this->vendorDir.'/composer/autoload_static.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_files_functions.php', $this->vendorDir.'/composer/autoload_files.php');

        $loader = require $this->vendorDir . '/autoload.php';
        $loader->unregister();
        $this->assertTrue(function_exists('testFilesAutoloadGeneration1'));
        $this->assertTrue(function_exists('testFilesAutoloadGeneration2'));
        $this->assertTrue(function_exists('testFilesAutoloadGeneration3'));
        $this->assertTrue(function_exists('testFilesAutoloadGeneration4'));
        $this->assertTrue(function_exists('testFilesAutoloadGenerationRoot'));
    }

    public function testFilesAutoloadGenerationRemoveExtraEntitiesFromAutoloadFiles(): void
    {
        $autoloadPackage = new RootPackage('root/a', '1.0', '1.0');
        $autoloadPackage->setAutoload(array('files' => array('root.php')));
        $autoloadPackage->setIncludePaths(array('/lib', '/src'));

        $notAutoloadPackage = new RootPackage('root/a', '1.0', '1.0');

        $requires = array(
            'a/a' => new Link('a', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
            'c/c' => new Link('a', 'c/c', new MatchAllConstraint()),
        );
        $autoloadPackage->setRequires($requires);
        $notAutoloadPackage->setRequires($requires);

        $autoloadPackages = array();
        $autoloadPackages[] = $a = new Package('a/a', '1.0', '1.0');
        $autoloadPackages[] = $b = new Package('b/b', '1.0', '1.0');
        $autoloadPackages[] = $c = new Package('c/c', '1.0', '1.0');
        $a->setAutoload(array('files' => array('test.php')));
        $a->setIncludePaths(array('lib1', 'src1'));
        $b->setAutoload(array('files' => array('test2.php')));
        $b->setIncludePaths(array('lib2'));
        $c->setAutoload(array('files' => array('test3.php', 'foo/bar/test4.php')));
        $c->setIncludePaths(array('lib3'));
        $c->setTargetDir('foo/bar');

        $notAutoloadPackages = array();
        $notAutoloadPackages[] = $a = new Package('a/a', '1.0', '1.0');
        $notAutoloadPackages[] = $b = new Package('b/b', '1.0', '1.0');
        $notAutoloadPackages[] = $c = new Package('c/c', '1.0', '1.0');

        $this->repository->expects($this->exactly(3))
            ->method('getCanonicalPackages')
            ->willReturnOnConsecutiveCalls(
                $autoloadPackages,
                $notAutoloadPackages,
                $notAutoloadPackages
            );

        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/c/c/foo/bar');
        file_put_contents($this->vendorDir.'/a/a/test.php', '<?php function testFilesAutoloadGeneration1() {}');
        file_put_contents($this->vendorDir.'/b/b/test2.php', '<?php function testFilesAutoloadGeneration2() {}');
        file_put_contents($this->vendorDir.'/c/c/foo/bar/test3.php', '<?php function testFilesAutoloadGeneration3() {}');
        file_put_contents($this->vendorDir.'/c/c/foo/bar/test4.php', '<?php function testFilesAutoloadGeneration4() {}');
        file_put_contents($this->workingDir.'/root.php', '<?php function testFilesAutoloadGenerationRoot() {}');

        $this->generator->dump($this->config, $this->repository, $autoloadPackage, $this->im, 'composer', false, 'FilesAutoload');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_functions.php', $this->vendorDir.'/autoload.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_real_functions_with_include_paths.php', $this->vendorDir.'/composer/autoload_real.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_static_functions_with_include_paths.php', $this->vendorDir.'/composer/autoload_static.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_files_functions.php', $this->vendorDir.'/composer/autoload_files.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/include_paths_functions.php', $this->vendorDir.'/composer/include_paths.php');

        $this->generator->dump($this->config, $this->repository, $autoloadPackage, $this->im, 'composer', false, 'FilesAutoload');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_functions.php', $this->vendorDir.'/autoload.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_real_functions_with_include_paths.php', $this->vendorDir.'/composer/autoload_real.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_files_functions_with_removed_extra.php', $this->vendorDir.'/composer/autoload_files.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/include_paths_functions_with_removed_extra.php', $this->vendorDir.'/composer/include_paths.php');

        $this->generator->dump($this->config, $this->repository, $notAutoloadPackage, $this->im, 'composer', false, 'FilesAutoload');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_functions.php', $this->vendorDir.'/autoload.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_real_functions_with_removed_include_paths_and_autolad_files.php', $this->vendorDir.'/composer/autoload_real.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_static_functions_with_removed_include_paths_and_autolad_files.php', $this->vendorDir.'/composer/autoload_static.php');
        $this->assertFileDoesNotExist($this->vendorDir.'/composer/autoload_files.php');
        $this->assertFileDoesNotExist($this->vendorDir.'/composer/include_paths.php');
    }

    public function testFilesAutoloadOrderByDependencies(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array('files' => array('root2.php')));
        $package->setRequires(array(
            'z/foo' => new Link('a', 'z/foo', new MatchAllConstraint()),
            'b/bar' => new Link('a', 'b/bar', new MatchAllConstraint()),
            'd/d' => new Link('a', 'd/d', new MatchAllConstraint()),
            'e/e' => new Link('a', 'e/e', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $z = new Package('z/foo', '1.0', '1.0');
        $packages[] = $b = new Package('b/bar', '1.0', '1.0');
        $packages[] = $d = new Package('d/d', '1.0', '1.0');
        $packages[] = $c = new Package('c/lorem', '1.0', '1.0');
        $packages[] = $e = new Package('e/e', '1.0', '1.0');

        $z->setAutoload(array('files' => array('testA.php')));
        $z->setRequires(array('c/lorem' => new Link('z/foo', 'c/lorem', new MatchAllConstraint())));

        $b->setAutoload(array('files' => array('testB.php')));
        $b->setRequires(array('c/lorem' => new Link('b/bar', 'c/lorem', new MatchAllConstraint()), 'd/d' => new Link('b/bar', 'd/d', new MatchAllConstraint())));

        $c->setAutoload(array('files' => array('testC.php')));

        $d->setAutoload(array('files' => array('testD.php')));
        $d->setRequires(array('c/lorem' => new Link('d/d', 'c/lorem', new MatchAllConstraint())));

        $e->setAutoload(array('files' => array('testE.php')));
        $e->setRequires(array('c/lorem' => new Link('e/e', 'c/lorem', new MatchAllConstraint())));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir . '/z/foo');
        $this->fs->ensureDirectoryExists($this->vendorDir . '/b/bar');
        $this->fs->ensureDirectoryExists($this->vendorDir . '/c/lorem');
        $this->fs->ensureDirectoryExists($this->vendorDir . '/d/d');
        $this->fs->ensureDirectoryExists($this->vendorDir . '/e/e');
        file_put_contents($this->vendorDir . '/z/foo/testA.php', '<?php function testFilesAutoloadOrderByDependency1() {}');
        file_put_contents($this->vendorDir . '/b/bar/testB.php', '<?php function testFilesAutoloadOrderByDependency2() {}');
        file_put_contents($this->vendorDir . '/c/lorem/testC.php', '<?php function testFilesAutoloadOrderByDependency3() {}');
        file_put_contents($this->vendorDir . '/d/d/testD.php', '<?php function testFilesAutoloadOrderByDependency4() {}');
        file_put_contents($this->vendorDir . '/e/e/testE.php', '<?php function testFilesAutoloadOrderByDependency5() {}');
        file_put_contents($this->workingDir . '/root2.php', '<?php function testFilesAutoloadOrderByDependencyRoot() {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, 'FilesAutoloadOrder');
        $this->assertFileContentEquals(__DIR__ . '/Fixtures/autoload_functions_by_dependency.php', $this->vendorDir . '/autoload.php');
        $this->assertFileContentEquals(__DIR__ . '/Fixtures/autoload_real_files_by_dependency.php', $this->vendorDir . '/composer/autoload_real.php');
        $this->assertFileContentEquals(__DIR__ . '/Fixtures/autoload_static_files_by_dependency.php', $this->vendorDir . '/composer/autoload_static.php');

        $loader = require $this->vendorDir . '/autoload.php';
        $loader->unregister();

        $this->assertTrue(function_exists('testFilesAutoloadOrderByDependency1'));
        $this->assertTrue(function_exists('testFilesAutoloadOrderByDependency2'));
        $this->assertTrue(function_exists('testFilesAutoloadOrderByDependency3'));
        $this->assertTrue(function_exists('testFilesAutoloadOrderByDependency4'));
        $this->assertTrue(function_exists('testFilesAutoloadOrderByDependency5'));
        $this->assertTrue(function_exists('testFilesAutoloadOrderByDependencyRoot'));
    }

    /**
     * Test that PSR-0 and PSR-4 mappings are processed in the correct order for
     * autoloading and for classmap generation:
     * - The main package has priority over other packages.
     * - Longer namespaces have priority over shorter namespaces.
     */
    public function testOverrideVendorsAutoloading(): void
    {
        $rootPackage = new RootPackage('root/z', '1.0', '1.0');
        $rootPackage->setAutoload(array(
            'psr-0' => array('A\\B' => $this->workingDir.'/lib'),
            'classmap' => array($this->workingDir.'/src'),
        ));
        $rootPackage->setRequires(array(
            'a/a' => new Link('z', 'a/a', new MatchAllConstraint()),
            'b/b' => new Link('z', 'b/b', new MatchAllConstraint()),
        ));

        $packages = array();
        $packages[] = $a = new Package('a/a', '1.0', '1.0');
        $packages[] = $b = new Package('b/b', '1.0', '1.0');
        $a->setAutoload(array(
            'psr-0' => array('A' => 'src/', 'A\\B' => 'lib/'),
            'classmap' => array('classmap'),
        ));
        $b->setAutoload(array(
            'psr-0' => array('B\\Sub\\Name' => 'src/'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->workingDir.'/lib/A/B');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src/');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/classmap');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/src');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/a/a/lib/A/B');
        $this->fs->ensureDirectoryExists($this->vendorDir.'/b/b/src');

        // Define the classes A\B\C and Foo\Bar in the main package.
        file_put_contents($this->workingDir.'/lib/A/B/C.php', '<?php namespace A\\B; class C {}');
        file_put_contents($this->workingDir.'/src/classes.php', '<?php namespace Foo; class Bar {}');

        // Define the same two classes in the package a/a.
        file_put_contents($this->vendorDir.'/a/a/lib/A/B/C.php', '<?php namespace A\\B; class C {}');
        file_put_contents($this->vendorDir.'/a/a/classmap/classes.php', '<?php namespace Foo; class Bar {}');

        $expectedNamespace = <<<EOF
<?php

// autoload_namespaces.php @generated by Composer

\$vendorDir = dirname(__DIR__);
\$baseDir = dirname(\$vendorDir);

return array(
    'B\\\\Sub\\\\Name' => array(\$vendorDir . '/b/b/src'),
    'A\\\\B' => array(\$baseDir . '/lib', \$vendorDir . '/a/a/lib'),
    'A' => array(\$vendorDir . '/a/a/src'),
);

EOF;

        // autoload_psr4.php is expected to be empty in this example.
        $expectedPsr4 = <<<EOF
<?php

// autoload_psr4.php @generated by Composer

\$vendorDir = dirname(__DIR__);
\$baseDir = dirname(\$vendorDir);

return array(
);

EOF;

        $expectedClassmap = <<<EOF
<?php

// autoload_classmap.php @generated by Composer

\$vendorDir = dirname(__DIR__);
\$baseDir = dirname(\$vendorDir);

return array(
    'A\\\\B\\\\C' => \$baseDir . '/lib/A/B/C.php',
    'Composer\\\\InstalledVersions' => \$vendorDir . '/composer/InstalledVersions.php',
    'Foo\\\\Bar' => \$baseDir . '/src/classes.php',
);

EOF;

        $this->generator->dump($this->config, $this->repository, $rootPackage, $this->im, 'composer', true, '_9');
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_namespaces.php', $expectedNamespace);
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_psr4.php', $expectedPsr4);
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_classmap.php', $expectedClassmap);
    }

    public function testIncludePathFileGeneration(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $packages = array();

        $a = new Package("a/a", "1.0", "1.0");
        $a->setIncludePaths(array("lib/"));

        $b = new Package("b/b", "1.0", "1.0");
        $b->setIncludePaths(array("library"));

        $c = new Package("c", "1.0", "1.0");
        $c->setIncludePaths(array("library"));

        $packages[] = $a;
        $packages[] = $b;
        $packages[] = $c;

        $this->repository->expects($this->once())
            ->method("getCanonicalPackages")
            ->will($this->returnValue($packages));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/composer');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, "composer", false, '_10');

        $this->assertFileContentEquals(__DIR__.'/Fixtures/include_paths.php', $this->vendorDir.'/composer/include_paths.php');
        $this->assertEquals(
            array(
                $this->vendorDir."/a/a/lib",
                $this->vendorDir."/b/b/library",
                $this->vendorDir."/c/library",
            ),
            require $this->vendorDir."/composer/include_paths.php"
        );
    }

    public function testIncludePathsArePrependedInAutoloadFile(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $packages = array();

        $a = new Package("a/a", "1.0", "1.0");
        $a->setIncludePaths(array("lib/"));

        $packages[] = $a;

        $this->repository->expects($this->once())
            ->method("getCanonicalPackages")
            ->will($this->returnValue($packages));

        mkdir($this->vendorDir."/composer", 0777, true);

        $this->generator->dump($this->config, $this->repository, $package, $this->im, "composer", false, '_11');

        $oldIncludePath = get_include_path();

        $loader = require $this->vendorDir."/autoload.php";
        $loader->unregister();

        $this->assertEquals(
            $this->vendorDir."/a/a/lib".PATH_SEPARATOR.$oldIncludePath,
            get_include_path()
        );

        set_include_path($oldIncludePath);
    }

    public function testIncludePathsInRootPackage(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setIncludePaths(array('/lib', '/src'));

        $packages = array($a = new Package("a/a", "1.0", "1.0"));
        $a->setIncludePaths(array("lib/"));

        $this->repository->expects($this->once())
            ->method("getCanonicalPackages")
            ->will($this->returnValue($packages));

        mkdir($this->vendorDir."/composer", 0777, true);

        $this->generator->dump($this->config, $this->repository, $package, $this->im, "composer", false, '_12');

        $oldIncludePath = get_include_path();

        $loader = require $this->vendorDir."/autoload.php";
        $loader->unregister();

        $this->assertEquals(
            $this->workingDir."/lib".PATH_SEPARATOR.$this->workingDir."/src".PATH_SEPARATOR.$this->vendorDir."/a/a/lib".PATH_SEPARATOR.$oldIncludePath,
            get_include_path()
        );

        set_include_path($oldIncludePath);
    }

    public function testIncludePathFileWithoutPathsIsSkipped(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $packages = array();

        $a = new Package("a/a", "1.0", "1.0");
        $packages[] = $a;

        $this->repository->expects($this->once())
            ->method("getCanonicalPackages")
            ->will($this->returnValue($packages));

        mkdir($this->vendorDir."/composer", 0777, true);

        $this->generator->dump($this->config, $this->repository, $package, $this->im, "composer", false, '_12');

        $this->assertFileDoesNotExist($this->vendorDir."/composer/include_paths.php");
    }

    public function testPreAndPostEventsAreDispatchedDuringAutoloadDump(): void
    {
        $this->eventDispatcher
            ->expects($this->exactly(2))
            ->method('dispatchScript')
            ->withConsecutive(
                [ScriptEvents::PRE_AUTOLOAD_DUMP, false],
                [ScriptEvents::POST_AUTOLOAD_DUMP, false]
            );

        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array('psr-0' => array('Prefix' => 'foo/bar/non/existing/')));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->generator->setRunScripts(true);
        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_8');
    }

    public function testUseGlobalIncludePath(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array('Main\\Foo' => '', 'Main\\Bar' => ''),
        ));
        $package->setTargetDir('Main/Foo/');

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->configValueMap['use-include-path'] = true;

        $this->fs->ensureDirectoryExists($this->vendorDir.'/a');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, 'IncludePath');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_real_include_path.php', $this->vendorDir.'/composer/autoload_real.php');
        $this->assertFileContentEquals(__DIR__.'/Fixtures/autoload_static_include_path.php', $this->vendorDir.'/composer/autoload_static.php');
    }

    public function testVendorDirExcludedFromWorkingDir(): void
    {
        $workingDir = $this->vendorDir.'/working-dir';
        $vendorDir = $workingDir.'/../vendor';

        $this->fs->ensureDirectoryExists($workingDir);
        chdir($workingDir);

        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array('Foo' => 'src'),
            'psr-4' => array('Acme\Foo\\' => 'src-psr4'),
            'classmap' => array('classmap'),
            'files' => array('test.php'),
        ));
        $package->setRequires(array(
            'b/b' => new Link('a', 'b/b', new MatchAllConstraint()),
        ));

        $vendorPackage = new Package('b/b', '1.0', '1.0');
        $vendorPackage->setAutoload(array(
            'psr-0' => array('Bar' => 'lib'),
            'psr-4' => array('Acme\Bar\\' => 'lib-psr4'),
            'classmap' => array('classmaps'),
            'files' => array('bootstrap.php'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array($vendorPackage)));

        $im = $this->getMockBuilder('Composer\Installer\InstallationManager')
            ->disableOriginalConstructor()
            ->getMock();
        $im->expects($this->any())
            ->method('getInstallPath')
            ->will($this->returnCallback(function ($package) use ($vendorDir) {
                $targetDir = $package->getTargetDir();

                return $vendorDir.'/'.$package->getName() . ($targetDir ? '/'.$targetDir : '');
            }));

        $this->fs->ensureDirectoryExists($workingDir.'/src/Foo');
        $this->fs->ensureDirectoryExists($workingDir.'/classmap');
        $this->fs->ensureDirectoryExists($vendorDir.'/composer');
        $this->fs->ensureDirectoryExists($vendorDir.'/b/b/lib/Bar');
        $this->fs->ensureDirectoryExists($vendorDir.'/b/b/classmaps');
        file_put_contents($workingDir.'/src/Foo/Bar.php', '<?php namespace Foo; class Bar {}');
        file_put_contents($workingDir.'/classmap/classes.php', '<?php namespace Foo; class Foo {}');
        file_put_contents($workingDir.'/test.php', '<?php class Foo {}');
        file_put_contents($vendorDir.'/b/b/lib/Bar/Foo.php', '<?php namespace Bar; class Foo {}');
        file_put_contents($vendorDir.'/b/b/classmaps/classes.php', '<?php namespace Bar; class Bar {}');
        file_put_contents($vendorDir.'/b/b/bootstrap.php', '<?php class Bar {}');

        $oldVendorDir = $this->vendorDir;
        $this->vendorDir = $vendorDir;
        $this->generator->dump($this->config, $this->repository, $package, $im, 'composer', true, '_13');
        $this->vendorDir = $oldVendorDir;

        $expectedNamespace = <<<'EOF'
<?php

// autoload_namespaces.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir).'/working-dir';

return array(
    'Foo' => array($baseDir . '/src'),
    'Bar' => array($vendorDir . '/b/b/lib'),
);

EOF;

        $expectedPsr4 = <<<'EOF'
<?php

// autoload_psr4.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir).'/working-dir';

return array(
    'Acme\\Foo\\' => array($baseDir . '/src-psr4'),
    'Acme\\Bar\\' => array($vendorDir . '/b/b/lib-psr4'),
);

EOF;

        $expectedClassmap = <<<'EOF'
<?php

// autoload_classmap.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir).'/working-dir';

return array(
    'Bar\\Bar' => $vendorDir . '/b/b/classmaps/classes.php',
    'Bar\\Foo' => $vendorDir . '/b/b/lib/Bar/Foo.php',
    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
    'Foo\\Bar' => $baseDir . '/src/Foo/Bar.php',
    'Foo\\Foo' => $baseDir . '/classmap/classes.php',
);

EOF;

        $this->assertStringEqualsFile($vendorDir.'/composer/autoload_namespaces.php', $expectedNamespace);
        $this->assertStringEqualsFile($vendorDir.'/composer/autoload_psr4.php', $expectedPsr4);
        $this->assertStringEqualsFile($vendorDir.'/composer/autoload_classmap.php', $expectedClassmap);
        $this->assertStringContainsString("\$vendorDir . '/b/b/bootstrap.php',\n", file_get_contents($vendorDir.'/composer/autoload_files.php'));
        $this->assertStringContainsString("\$baseDir . '/test.php',\n", file_get_contents($vendorDir.'/composer/autoload_files.php'));
    }

    public function testUpLevelRelativePaths(): void
    {
        $workingDir = $this->workingDir.'/working-dir';
        mkdir($workingDir, 0777, true);
        chdir($workingDir);

        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array('Foo' => '../path/../src'),
            'psr-4' => array('Acme\Foo\\' => '../path/../src-psr4'),
            'classmap' => array('../classmap', '../classmap2/subdir', 'classmap3', 'classmap4'),
            'files' => array('../test.php'),
            'exclude-from-classmap' => array('./../classmap/excluded', '../classmap2', 'classmap3/classes.php', 'classmap4/*/classes.php'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->workingDir.'/src/Foo');
        $this->fs->ensureDirectoryExists($this->workingDir.'/classmap/excluded');
        $this->fs->ensureDirectoryExists($this->workingDir.'/classmap2/subdir');
        $this->fs->ensureDirectoryExists($this->workingDir.'/working-dir/classmap3');
        $this->fs->ensureDirectoryExists($this->workingDir.'/working-dir/classmap4/foo/');
        file_put_contents($this->workingDir.'/src/Foo/Bar.php', '<?php namespace Foo; class Bar {}');
        file_put_contents($this->workingDir.'/classmap/classes.php', '<?php namespace Foo; class Foo {}');
        file_put_contents($this->workingDir.'/classmap/excluded/classes.php', '<?php namespace Foo; class Boo {}');
        file_put_contents($this->workingDir.'/classmap2/subdir/classes.php', '<?php namespace Foo; class Boo2 {}');
        file_put_contents($this->workingDir.'/working-dir/classmap3/classes.php', '<?php namespace Foo; class Boo3 {}');
        file_put_contents($this->workingDir.'/working-dir/classmap4/foo/classes.php', '<?php namespace Foo; class Boo4 {}');
        file_put_contents($this->workingDir.'/test.php', '<?php class Foo {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_14');

        $expectedNamespace = <<<'EOF'
<?php

// autoload_namespaces.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir).'/working-dir';

return array(
    'Foo' => array($baseDir . '/../src'),
);

EOF;

        $expectedPsr4 = <<<'EOF'
<?php

// autoload_psr4.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir).'/working-dir';

return array(
    'Acme\\Foo\\' => array($baseDir . '/../src-psr4'),
);

EOF;

        $expectedClassmap = <<<'EOF'
<?php

// autoload_classmap.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir).'/working-dir';

return array(
    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
    'Foo\\Bar' => $baseDir . '/../src/Foo/Bar.php',
    'Foo\\Foo' => $baseDir . '/../classmap/classes.php',
);

EOF;

        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_namespaces.php', $expectedNamespace);
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_psr4.php', $expectedPsr4);
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_classmap.php', $expectedClassmap);
        $this->assertStringContainsString("\$baseDir . '/../test.php',\n", file_get_contents($this->vendorDir.'/composer/autoload_files.php'));
    }

    public function testEmptyPaths(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array('Foo' => ''),
            'psr-4' => array('Acme\Foo\\' => ''),
            'classmap' => array(''),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->workingDir.'/Foo');
        file_put_contents($this->workingDir.'/Foo/Bar.php', '<?php namespace Foo; class Bar {}');
        file_put_contents($this->workingDir.'/class.php', '<?php namespace Classmap; class Foo {}');

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_15');

        $expectedNamespace = <<<'EOF'
<?php

// autoload_namespaces.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir);

return array(
    'Foo' => array($baseDir . '/'),
);

EOF;

        $expectedPsr4 = <<<'EOF'
<?php

// autoload_psr4.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir);

return array(
    'Acme\\Foo\\' => array($baseDir . '/'),
);

EOF;

        $expectedClassmap = <<<'EOF'
<?php

// autoload_classmap.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir);

return array(
    'Classmap\\Foo' => $baseDir . '/class.php',
    'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',
    'Foo\\Bar' => $baseDir . '/Foo/Bar.php',
);

EOF;

        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_namespaces.php', $expectedNamespace);
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_psr4.php', $expectedPsr4);
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_classmap.php', $expectedClassmap);
    }

    public function testVendorSubstringPath(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array('Foo' => 'composer-test-autoload-src/src'),
            'psr-4' => array('Acme\Foo\\' => 'composer-test-autoload-src/src-psr4'),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->vendorDir.'/a');

        $expectedNamespace = <<<'EOF'
<?php

// autoload_namespaces.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir);

return array(
    'Foo' => array($baseDir . '/composer-test-autoload-src/src'),
);

EOF;

        $expectedPsr4 = <<<'EOF'
<?php

// autoload_psr4.php @generated by Composer

$vendorDir = dirname(__DIR__);
$baseDir = dirname($vendorDir);

return array(
    'Acme\\Foo\\' => array($baseDir . '/composer-test-autoload-src/src-psr4'),
);

EOF;

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', false, 'VendorSubstring');
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_namespaces.php', $expectedNamespace);
        $this->assertStringEqualsFile($this->vendorDir.'/composer/autoload_psr4.php', $expectedPsr4);
    }

    public function testExcludeFromClassmap(): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setAutoload(array(
            'psr-0' => array(
                'Main' => 'src/',
                'Lala' => array('src/', 'lib/'),
            ),
            'psr-4' => array(
                'Acme\Fruit\\' => 'src-fruit/',
                'Acme\Cake\\' => array('src-cake/', 'lib-cake/'),
            ),
            'classmap' => array('composersrc/'),
            'exclude-from-classmap' => array(
                '/composersrc/foo/bar/',
                '/composersrc/excludedTests/',
                '/composersrc/ClassToExclude.php',
                '/composersrc/*/excluded/excsubpath',
                '**/excsubpath',
                'composers',    // should _not_ cause exclusion of /composersrc/**, as it is equivalent to /composers/**
                '/src-ca/',     // should _not_ cause exclusion of /src-cake/**, as it is equivalent to /src-ca/**
            ),
        ));

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->fs->ensureDirectoryExists($this->workingDir.'/composer');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src/Lala/Test');
        $this->fs->ensureDirectoryExists($this->workingDir.'/lib');
        file_put_contents($this->workingDir.'/src/Lala/ClassMapMain.php', '<?php namespace Lala; class ClassMapMain {}');
        file_put_contents($this->workingDir.'/src/Lala/Test/ClassMapMainTest.php', '<?php namespace Lala\Test; class ClassMapMainTest {}');

        $this->fs->ensureDirectoryExists($this->workingDir.'/src-fruit');
        $this->fs->ensureDirectoryExists($this->workingDir.'/src-cake');
        $this->fs->ensureDirectoryExists($this->workingDir.'/lib-cake');
        file_put_contents($this->workingDir.'/src-cake/ClassMapBar.php', '<?php namespace Acme\Cake; class ClassMapBar {}');

        $this->fs->ensureDirectoryExists($this->workingDir.'/composersrc');
        $this->fs->ensureDirectoryExists($this->workingDir.'/composersrc/tests');
        file_put_contents($this->workingDir.'/composersrc/foo.php', '<?php class ClassMapFoo {}');

        // these classes should not be found in the classmap
        $this->fs->ensureDirectoryExists($this->workingDir.'/composersrc/excludedTests');
        file_put_contents($this->workingDir.'/composersrc/excludedTests/bar.php', '<?php class ClassExcludeMapFoo {}');
        file_put_contents($this->workingDir.'/composersrc/ClassToExclude.php', '<?php class ClassClassToExclude {}');
        $this->fs->ensureDirectoryExists($this->workingDir.'/composersrc/long/excluded/excsubpath');
        file_put_contents($this->workingDir.'/composersrc/long/excluded/excsubpath/foo.php', '<?php class ClassExcludeMapFoo2 {}');
        file_put_contents($this->workingDir.'/composersrc/long/excluded/excsubpath/bar.php', '<?php class ClassExcludeMapBar {}');

        // symlink directory in project directory in classmap
        $this->fs->ensureDirectoryExists($this->workingDir.'/forks/bar/src/exclude');
        $this->fs->ensureDirectoryExists($this->workingDir.'/composersrc/foo');

        file_put_contents($this->workingDir.'/forks/bar/src/exclude/FooExclClass.php', '<?php class FooExclClass {};');
        $target = $this->workingDir.'/forks/bar/';
        $link = $this->workingDir.'/composersrc/foo/bar';
        $command = Platform::isWindows()
            ? 'mklink /j "' . str_replace('/', '\\', $link) . '" "' . str_replace('/', '\\', $target) . '"'
            : 'ln -s "' . $target . '" "' . $link . '"';
        exec($command);

        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_1');

        // Assert that autoload_classmap.php was correctly generated.
        $this->assertAutoloadFiles('classmap', $this->vendorDir.'/composer', 'classmap');
    }

    /**
     * @param array<string, Link>  $requires
     * @param string|null          $expectedFixture
     * @param array<string, Link>  $provides
     * @param array<string, Link>  $replaces
     * @param bool                 $ignorePlatformReqs
     *
     * @dataProvider platformCheckProvider
     */
    public function testGeneratesPlatformCheck(array $requires, $expectedFixture, array $provides = array(), array $replaces = array(), $ignorePlatformReqs = false): void
    {
        $package = new RootPackage('root/a', '1.0', '1.0');
        $package->setRequires($requires);

        if ($provides) {
            $package->setProvides($provides);
        }

        if ($replaces) {
            $package->setReplaces($replaces);
        }

        $this->repository->expects($this->once())
            ->method('getCanonicalPackages')
            ->will($this->returnValue(array()));

        $this->generator->setPlatformRequirementFilter(PlatformRequirementFilterFactory::fromBoolOrList($ignorePlatformReqs));
        $this->generator->dump($this->config, $this->repository, $package, $this->im, 'composer', true, '_1');

        if (null === $expectedFixture) {
            $this->assertFalse(file_exists($this->vendorDir . '/composer/platform_check.php'));
            $this->assertStringNotContainsString("require __DIR__ . '/platform_check.php';", file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
        } else {
            $this->assertFileContentEquals(__DIR__ . '/Fixtures/platform/' . $expectedFixture . '.php', $this->vendorDir . '/composer/platform_check.php');
            $this->assertStringContainsString("require __DIR__ . '/platform_check.php';", file_get_contents($this->vendorDir.'/composer/autoload_real.php'));
        }
    }

    /**
     * @return array<string, mixed[]>
     */
    public function platformCheckProvider()
    {
        $versionParser = new VersionParser();

        return array(
            'Typical project requirements' => array(
                array(
                    'php' => new Link('a', 'php', $versionParser->parseConstraints('^7.2')),
                    'ext-xml' => new Link('a', 'ext-xml', $versionParser->parseConstraints('*')),
                    'ext-json' => new Link('a', 'ext-json', $versionParser->parseConstraints('*')),
                ),
                'typical',
            ),
            'No PHP lower bound' => array(
                array(
                    'php' => new Link('a', 'php', $versionParser->parseConstraints('< 8')),
                ),
                null,
            ),
            'No PHP upper bound' => array(
                array(
                    'php' => new Link('a', 'php', $versionParser->parseConstraints('>= 7.2')),
                ),
                'no_php_upper_bound',
            ),
            'Specific PHP release version' => array(
                array(
                    'php' => new Link('a', 'php', $versionParser->parseConstraints('^7.2.8')),
                ),
                'specific_php_release',
            ),
            'No PHP required' => array(
                array(
                    'ext-xml' => new Link('a', 'ext-xml', $versionParser->parseConstraints('*')),
                    'ext-json' => new Link('a', 'ext-json', $versionParser->parseConstraints('*')),
                ),
                'no_php_required',
            ),
            'Ignoring all platform requirements skips check completely' => array(
                array(
                    'php' => new Link('a', 'php', $versionParser->parseConstraints('^7.2')),
                    'ext-xml' => new Link('a', 'ext-xml', $versionParser->parseConstraints('*')),
                    'ext-json' => new Link('a', 'ext-json', $versionParser->parseConstraints('*')),
                ),
                null,
                array(),
                array(),
                true,
            ),
            'Ignored platform requirements are not checked for' => array(
                array(
                    'php' => new Link('a', 'php', $versionParser->parseConstraints('^7.2.8')),
                    'ext-xml' => new Link('a', 'ext-xml', $versionParser->parseConstraints('*')),
                    'ext-json' => new Link('a', 'ext-json', $versionParser->parseConstraints('*')),
                    'ext-pdo' => new Link('a', 'ext-pdo', $versionParser->parseConstraints('*')),
                ),
                'no_php_required',
                array(),
                array(),
                array('php', 'ext-pdo'),
            ),
            'Via wildcard ignored platform requirements are not checked for' => array(
                array(
                    'php' => new Link('a', 'php', $versionParser->parseConstraints('^7.2.8')),
                    'ext-xml' => new Link('a', 'ext-xml', $versionParser->parseConstraints('*')),
                    'ext-json' => new Link('a', 'ext-json', $versionParser->parseConstraints('*')),
                    'ext-fileinfo' => new Link('a', 'ext-fileinfo', $versionParser->parseConstraints('*')),
                    'ext-filesystem' => new Link('a', 'ext-filesystem', $versionParser->parseConstraints('*')),
                    'ext-filter' => new Link('a', 'ext-filter', $versionParser->parseConstraints('*')),
                ),
                'no_php_required',
                array(),
                array(),
                array('php', 'ext-fil*'),
            ),
            'No extensions required' => array(
                array(
                    'php' => new Link('a', 'php', $versionParser->parseConstraints('^7.2')),
                ),
                'no_extensions_required',
            ),
            'Replaced/provided extensions are not checked for + checking case insensitivity' => array(
                array(
                    'ext-xml' => new Link('a', 'ext-xml', $versionParser->parseConstraints('^7.2')),
                    'ext-pdo' => new Link('a', 'ext-Pdo', $versionParser->parseConstraints('^7.2')),
                    'ext-bcmath' => new Link('a', 'ext-bcMath', $versionParser->parseConstraints('^7.2')),
                ),
                'replaced_provided_exts',
                array(
                    // constraint does not satisfy all the ^7.2 requirement so we do not accept it as being replaced
                    'ext-pdo' => new Link('a', 'ext-PDO', $versionParser->parseConstraints('7.1.*')),
                    // valid replace of bcmath so no need to check for it
                    'ext-bcmath' => new Link('a', 'ext-BCMath', $versionParser->parseConstraints('^7.1')),
                ),
                array(
                    // valid provide of ext-xml so no need to check for it
                    'ext-xml' => new Link('a', 'ext-XML', $versionParser->parseConstraints('*')),
                ),
            ),
        );
    }

    /**
     * @param string $name
     * @param string $dir
     * @param string $type
     *
     * @return void
     */
    private function assertAutoloadFiles($name, $dir, $type = 'namespaces'): void
    {
        $a = __DIR__.'/Fixtures/autoload_'.$name.'.php';
        $b = $dir.'/autoload_'.$type.'.php';
        $this->assertFileContentEquals($a, $b);
    }

    /**
     * @param string $expected
     * @param string $actual
     * @param string|null $message
     *
     * @return void
     */
    public static function assertFileContentEquals(string $expected, string $actual, ?string $message = null): void
    {
        self::assertSame(
            str_replace("\r", '', (string) file_get_contents($expected)),
            str_replace("\r", '', (string) file_get_contents($actual)),
            $message ?? $expected.' equals '.$actual
        );
    }
}