AutoloaderTest.php
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AutoloaderTest.php
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	<?php
	declare(strict_types=1);

	namespace Keruald\OmniTools\Tests\Registration;

	use Keruald\OmniTools\Registration\Autoloader;
	use PHPUnit\Framework\TestCase;

	use Acme\MockLib\Foo; // a mock class in a mock namespace to test autoload.

	class AutoloaderTest extends TestCase {

	///
	/// Tests
	///

	/**
	* @dataProvider providePaths
	*/
	public function testGetPathFor (string $class, string $expected) : void {
	$this->assertEquals($expected, Autoloader::getPathFor($class));
	}

	public function testRegisterPSR4 () : void {
	$class = Foo::class;
	$this->assertFalse(
	class_exists($class),
	"Please reconfigure the test suite not to include the $class class."
	);

	Autoloader::registerPSR4("Acme\\MockLib\\", __DIR__ . "/MockLib");
	$this->assertTrue(class_exists($class));
	}

	public function testGetLibraryPath () : void {
	$this->assertStringStartsWith(
	dirname(Autoloader::getLibraryPath()), // lib is in <root>/src
	__DIR__ // we are in <root>/tests/…
	);
	}

	public function testRegister () : void {
	$count = count(spl_autoload_functions());

	Autoloader::selfRegister();

	$this->assertEquals(++$count, count(spl_autoload_functions()));
	}

	///
	/// Data provider
	///

	public function providePaths () : iterable {
	// Example from PSR-4 canonical document
	yield ['File_Writer', 'File_Writer.php'];
	yield ['Response\Status', 'Response/Status.php'];
	yield ['Request', 'Request.php'];
	}

	}