UniversalClassLoaderTest.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\ClassLoader\Tests;

use Symfony\Component\ClassLoader\UniversalClassLoader;
class UniversalClassLoaderTest extends \PHPUnit_Framework_TestCase {

  /**
   * @dataProvider getLoadClassTests
   */
  public function testLoadClass($className, $testClassName, $message) {
    $loader = new UniversalClassLoader();
    $loader
      ->registerNamespace('Namespaced', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $loader
      ->registerPrefix('Pearlike_', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $loader
      ->loadClass($testClassName);
    $this
      ->assertTrue(class_exists($className), $message);
  }
  public function getLoadClassTests() {
    return array(
      array(
        '\\Namespaced\\Foo',
        'Namespaced\\Foo',
        '->loadClass() loads Namespaced\\Foo class',
      ),
      array(
        '\\Pearlike_Foo',
        'Pearlike_Foo',
        '->loadClass() loads Pearlike_Foo class',
      ),
      array(
        '\\Namespaced\\Bar',
        '\\Namespaced\\Bar',
        '->loadClass() loads Namespaced\\Bar class with a leading slash',
      ),
      array(
        '\\Pearlike_Bar',
        '\\Pearlike_Bar',
        '->loadClass() loads Pearlike_Bar class with a leading slash',
      ),
    );
  }
  public function testUseIncludePath() {
    $loader = new UniversalClassLoader();
    $this
      ->assertFalse($loader
      ->getUseIncludePath());
    $this
      ->assertNull($loader
      ->findFile('Foo'));
    $includePath = get_include_path();
    $loader
      ->useIncludePath(true);
    $this
      ->assertTrue($loader
      ->getUseIncludePath());
    set_include_path(__DIR__ . '/Fixtures/includepath' . PATH_SEPARATOR . $includePath);
    $this
      ->assertEquals(__DIR__ . DIRECTORY_SEPARATOR . 'Fixtures' . DIRECTORY_SEPARATOR . 'includepath' . DIRECTORY_SEPARATOR . 'Foo.php', $loader
      ->findFile('Foo'));
    set_include_path($includePath);
  }
  public function testGetNamespaces() {
    $loader = new UniversalClassLoader();
    $loader
      ->registerNamespace('Foo', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $loader
      ->registerNamespace('Bar', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $loader
      ->registerNamespace('Bas', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $namespaces = $loader
      ->getNamespaces();
    $this
      ->assertArrayHasKey('Foo', $namespaces);
    $this
      ->assertArrayNotHasKey('Foo1', $namespaces);
    $this
      ->assertArrayHasKey('Bar', $namespaces);
    $this
      ->assertArrayHasKey('Bas', $namespaces);
  }
  public function testGetPrefixes() {
    $loader = new UniversalClassLoader();
    $loader
      ->registerPrefix('Foo', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $loader
      ->registerPrefix('Bar', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $loader
      ->registerPrefix('Bas', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $prefixes = $loader
      ->getPrefixes();
    $this
      ->assertArrayHasKey('Foo', $prefixes);
    $this
      ->assertArrayNotHasKey('Foo1', $prefixes);
    $this
      ->assertArrayHasKey('Bar', $prefixes);
    $this
      ->assertArrayHasKey('Bas', $prefixes);
  }

  /**
   * @dataProvider getLoadClassFromFallbackTests
   */
  public function testLoadClassFromFallback($className, $testClassName, $message) {
    $loader = new UniversalClassLoader();
    $loader
      ->registerNamespace('Namespaced', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $loader
      ->registerPrefix('Pearlike_', __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures');
    $loader
      ->registerNamespaceFallbacks(array(
      __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/fallback',
    ));
    $loader
      ->registerPrefixFallbacks(array(
      __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/fallback',
    ));
    $loader
      ->loadClass($testClassName);
    $this
      ->assertTrue(class_exists($className), $message);
  }
  public function getLoadClassFromFallbackTests() {
    return array(
      array(
        '\\Namespaced\\Baz',
        'Namespaced\\Baz',
        '->loadClass() loads Namespaced\\Baz class',
      ),
      array(
        '\\Pearlike_Baz',
        'Pearlike_Baz',
        '->loadClass() loads Pearlike_Baz class',
      ),
      array(
        '\\Namespaced\\FooBar',
        'Namespaced\\FooBar',
        '->loadClass() loads Namespaced\\Baz class from fallback dir',
      ),
      array(
        '\\Pearlike_FooBar',
        'Pearlike_FooBar',
        '->loadClass() loads Pearlike_Baz class from fallback dir',
      ),
    );
  }
  public function testRegisterPrefixFallback() {
    $loader = new UniversalClassLoader();
    $loader
      ->registerPrefixFallback(__DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/fallback');
    $this
      ->assertEquals(array(
      __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/fallback',
    ), $loader
      ->getPrefixFallbacks());
  }
  public function testRegisterNamespaceFallback() {
    $loader = new UniversalClassLoader();
    $loader
      ->registerNamespaceFallback(__DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/Namespaced/fallback');
    $this
      ->assertEquals(array(
      __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/Namespaced/fallback',
    ), $loader
      ->getNamespaceFallbacks());
  }

  /**
   * @dataProvider getLoadClassNamespaceCollisionTests
   */
  public function testLoadClassNamespaceCollision($namespaces, $className, $message) {
    $loader = new UniversalClassLoader();
    $loader
      ->registerNamespaces($namespaces);
    $loader
      ->loadClass($className);
    $this
      ->assertTrue(class_exists($className), $message);
  }
  public function getLoadClassNamespaceCollisionTests() {
    return array(
      array(
        array(
          'NamespaceCollision\\A' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/alpha',
          'NamespaceCollision\\A\\B' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/beta',
        ),
        'NamespaceCollision\\A\\Foo',
        '->loadClass() loads NamespaceCollision\\A\\Foo from alpha.',
      ),
      array(
        array(
          'NamespaceCollision\\A\\B' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/beta',
          'NamespaceCollision\\A' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/alpha',
        ),
        'NamespaceCollision\\A\\Bar',
        '->loadClass() loads NamespaceCollision\\A\\Bar from alpha.',
      ),
      array(
        array(
          'NamespaceCollision\\A' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/alpha',
          'NamespaceCollision\\A\\B' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/beta',
        ),
        'NamespaceCollision\\A\\B\\Foo',
        '->loadClass() loads NamespaceCollision\\A\\B\\Foo from beta.',
      ),
      array(
        array(
          'NamespaceCollision\\A\\B' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/beta',
          'NamespaceCollision\\A' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/alpha',
        ),
        'NamespaceCollision\\A\\B\\Bar',
        '->loadClass() loads NamespaceCollision\\A\\B\\Bar from beta.',
      ),
    );
  }

  /**
   * @dataProvider getLoadClassPrefixCollisionTests
   */
  public function testLoadClassPrefixCollision($prefixes, $className, $message) {
    $loader = new UniversalClassLoader();
    $loader
      ->registerPrefixes($prefixes);
    $loader
      ->loadClass($className);
    $this
      ->assertTrue(class_exists($className), $message);
  }
  public function getLoadClassPrefixCollisionTests() {
    return array(
      array(
        array(
          'PrefixCollision_A_' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/alpha',
          'PrefixCollision_A_B_' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/beta',
        ),
        'PrefixCollision_A_Foo',
        '->loadClass() loads PrefixCollision_A_Foo from alpha.',
      ),
      array(
        array(
          'PrefixCollision_A_B_' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/beta',
          'PrefixCollision_A_' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/alpha',
        ),
        'PrefixCollision_A_Bar',
        '->loadClass() loads PrefixCollision_A_Bar from alpha.',
      ),
      array(
        array(
          'PrefixCollision_A_' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/alpha',
          'PrefixCollision_A_B_' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/beta',
        ),
        'PrefixCollision_A_B_Foo',
        '->loadClass() loads PrefixCollision_A_B_Foo from beta.',
      ),
      array(
        array(
          'PrefixCollision_A_B_' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/beta',
          'PrefixCollision_A_' => __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures/alpha',
        ),
        'PrefixCollision_A_B_Bar',
        '->loadClass() loads PrefixCollision_A_B_Bar from beta.',
      ),
    );
  }

}