### 测试模型表
> module/Album/test/Model/AlbumTableTest.php
```php
<?php
namespace AlbumTest\Model;
use Album\Model\AlbumTable;
use Album\Model\Album;
use PHPUnit\Framework\TestCase;
use RuntimeException;
use Zend\Db\ResultSet\ResultSetInterface;
use Zend\Db\TableGateway\TableGatewayInterface;
class AlbumTableTest extends TestCase
{
protected function setUp()
{
$this->tableGateway = $this->prophesize(TableGatewayInterface::class);
$this->albumTable = new AlbumTable($this->tableGateway->reveal());
}
public function testFetchAllReturnsAllAlbums()
{
$resultSet = $this->prophesize(ResultSetInterface::class)->reveal();
$this->tableGateway->select()->willReturn($resultSet);
$this->assertSame($resultSet, $this->albumTable->fetchAll());
}
public function testCanDeleteAnAlbumByItsId()
{
$this->tableGateway->delete(['id' => 123])->shouldBeCalled();
$this->albumTable->deleteAlbum(123);
}
public function testSaveAlbumWillInsertNewAlbumsIfTheyDontAlreadyHaveAnId()
{
$albumData = [
'artist' => 'The Military Wives',
'title' => 'In My Dreams'
];
$album = new Album();
$album->exchangeArray($albumData);
$this->tableGateway->insert($albumData)->shouldBeCalled();
$this->albumTable->saveAlbum($album);
}
public function testSaveAlbumWillUpdateExistingAlbumsIfTheyAlreadyHaveAnId()
{
$albumData = [
'id' => 123,
'artist' => 'The Military Wives',
'title' => 'In My Dreams',
];
$album = new Album();
$album->exchangeArray($albumData);
$resultSet = $this->prophesize(ResultSetInterface::class);
$resultSet->current()->willReturn($album);
$this->tableGateway
->select(['id' => 123])
->willReturn($resultSet->reveal());
$this->tableGateway
->update(
array_filter($albumData, function ($key) {
return in_array($key, ['artist', 'title']);
}, ARRAY_FILTER_USE_KEY),
['id' => 123]
)->shouldBeCalled();
$this->albumTable->saveAlbum($album);
}
public function testExceptionIsThrownWhenGettingNonExistentAlbum()
{
$resultSet = $this->prophesize(ResultSetInterface::class);
$resultSet->current()->willReturn(null);
$this->tableGateway
->select(['id' => 123])
->willReturn($resultSet->reveal());
$this->expectException(RuntimeException::class);
$this->expectExceptionMessage('Could not find row with identifier 123');
$this->albumTable->getAlbum(123);
}
}
```
