GEANT/CAT

<?php
/*
 * *****************************************************************************
 * Contributions to this work were made on behalf of the GÉANT project, a 
 * project that has received funding from the European Union’s Framework 
 * Programme 7 under Grant Agreements No. 238875 (GN3) and No. 605243 (GN3plus),
 * Horizon 2020 research and innovation programme under Grant Agreements No. 
 * 691567 (GN4-1) and No. 731122 (GN4-2).
 * On behalf of the aforementioned projects, GEANT Association is the sole owner
 * of the copyright in all material which was developed by a member of the GÉANT
 * project. GÉANT Vereniging (Association) is registered with the Chamber of 
 * Commerce in Amsterdam with registration number 40535155 and operates in the 
 * UK as a branch of GÉANT Vereniging.
 * 
 * Registered office: Hoekenrode 3, 1102BR Amsterdam, The Netherlands. 
 * UK branch address: City House, 126-130 Hills Road, Cambridge CB2 1PQ, UK
 *
 * License: see the web/copyright.inc.php file in the file structure or
 *          <base_url>/copyright.php after deploying the software
 */

use core\autoloader\Psr4Autoloader;

class MockPsr4Autoloader extends Psr4Autoloader
{
    protected $files = array();

    public function setFiles(array $files)
    {
        $this->files = $files;
    }

    protected function requireFile($file)
    {
        return in_array($file, $this->files);
    }
}

class Psr4AutoloaderTest extends \PHPUnit\Framework\TestCase
{
    protected $loader;

    protected function setUp()
    {
        $this->loader = new MockPsr4Autoloader;

        $this->loader->setFiles(array(
            '/vendor/foo.bar/src/ClassName.php',
            '/vendor/foo.bar/src/DoomClassName.php',
            '/vendor/foo.bar/tests/ClassNameTest.php',
            '/vendor/foo.bardoom/src/ClassName.php',
            '/vendor/foo.bar.baz.dib/src/ClassName.php',
            '/vendor/foo.bar.baz.dib.zim.gir/src/ClassName.php',
        ));

        $this->loader->addNamespace(
            'Foo\Bar',
            '/vendor/foo.bar/src'
        );

        $this->loader->addNamespace(
            'Foo\Bar',
            '/vendor/foo.bar/tests'
        );

        $this->loader->addNamespace(
            'Foo\BarDoom',
            '/vendor/foo.bardoom/src'
        );

        $this->loader->addNamespace(
            'Foo\Bar\Baz\Dib',
            '/vendor/foo.bar.baz.dib/src'
        );

        $this->loader->addNamespace(
            'Foo\Bar\Baz\Dib\Zim\Gir',
            '/vendor/foo.bar.baz.dib.zim.gir/src'
        );
    }

    public function testExistingFile()
    {
        $actual = $this->loader->loadClass('Foo\Bar\ClassName');
        $expect = '/vendor/foo.bar/src/ClassName.php';
        $this->assertSame($expect, $actual);

        $actual = $this->loader->loadClass('Foo\Bar\ClassNameTest');
        $expect = '/vendor/foo.bar/tests/ClassNameTest.php';
        $this->assertSame($expect, $actual);
    }

    public function testMissingFile()
    {
        $actual = $this->loader->loadClass('No_Vendor\No_Package\NoClass');
        $this->assertFalse($actual);
    }

    public function testDeepFile()
    {
        $actual = $this->loader->loadClass('Foo\Bar\Baz\Dib\Zim\Gir\ClassName');
        $expect = '/vendor/foo.bar.baz.dib.zim.gir/src/ClassName.php';
        $this->assertSame($expect, $actual);
    }

    public function testConfusion()
    {
        $actual = $this->loader->loadClass('Foo\Bar\DoomClassName');
        $expect = '/vendor/foo.bar/src/DoomClassName.php';
        $this->assertSame($expect, $actual);

        $actual = $this->loader->loadClass('Foo\BarDoom\ClassName');
        $expect = '/vendor/foo.bardoom/src/ClassName.php';
        $this->assertSame($expect, $actual);
    }
}