markTestSkipped( 'The GD extension is not available.' ); } } public function testImage() { $path = __DIR__ . '/codebar.png'; if (\file_exists($path)) { \unlink($path); } $img = new Codebar('412163', 200, 50); $img->saveToPngFile($path); self::assertTrue(\file_exists($path)); } public function testValidString() { self::assertTrue(Codebar::isValidString('412163')); self::assertFalse(Codebar::isValidString('412163F')); } }