Bitpay\Storage\EncryptedFilesystemStorageTest::testPersistAndLoadWithoutPassword PHP Метод

    public function testPersistAndLoadWithoutPassword()
    {
        $storage = new EncryptedFilesystemStorage(null);
        $storage->persist(new \Bitpay\PublicKey(vfsStream::url('tmp/public.key')));
        $this->assertTrue($this->root->hasChild('tmp/public.key'));
        $key = $storage->load(vfsStream::url('tmp/public.key'));
        $this->assertInstanceOf('Bitpay\\PublicKey', $key);
    }