Lithium Docs

						public function testDelete() {
		$key = 'key_to_delete';
		$time = time() + 1;
		$path = Libraries::get(true, 'resources') . "/tmp/cache/{$key}";

		file_put_contents($path, "{:expiry:$time}\ndata");
		$this->assertTrue(file_exists($path));

		$closure = $this->File->delete($key);
		$this->assertTrue(is_callable($closure));

		$params = compact('key');
		$this->assertTrue($closure($this->File, $params, null));

		$key = 'non_existent';
		$params = compact('key');
		$this->assertFalse($closure($this->File, $params, null));
	}