public function testExistingPath()
{
$paths = $this->generate_additional_paths();
$this->assertEquals($this->path->get_existing_path(), $paths[0]);
$this->path->set_path('');
$this->path->calculate_path();
$this->assertEquals(Path::get_path(), $this->path->get_existing_path());
$this->assertFileExists($this->path->get_existing_path());
}