silverstripe-framework/tests/php/ORM/DataDifferencerTest.php

<?php

namespace SilverStripe\ORM\Tests;

use SilverStripe\Assets\Folder;
use SilverStripe\Assets\Image;
use SilverStripe\ORM\Versioning\Versioned;
use SilverStripe\ORM\Versioning\DataDifferencer;
use SilverStripe\Assets\File;
use SilverStripe\Assets\Filesystem;
use SilverStripe\Dev\SapphireTest;
use SilverStripe\Assets\Tests\Storage\AssetStoreTest\TestAssetStore;

class DataDifferencerTest extends SapphireTest {

	protected static $fixture_file = 'DataDifferencerTest.yml';

	protected $extraDataObjects = array(
		DataDifferencerTest\TestObject::class,
		DataDifferencerTest\HasOneRelationObject::class
	);

	public function setUp() {
		parent::setUp();

		Versioned::set_stage(Versioned::DRAFT);

		// Set backend root to /DataDifferencerTest
		TestAssetStore::activate('DataDifferencerTest');

		// Create a test files for each of the fixture references
		$files = File::get()->exclude('ClassName', Folder::class);
		foreach($files as $file) {
			$fromPath = __DIR__ . '/ImageTest/' . $file->Name;
			$destPath = TestAssetStore::getLocalPath($file); // Only correct for test asset store
			Filesystem::makeFolder(dirname($destPath));
			copy($fromPath, $destPath);
		}
	}

	public function tearDown() {
		TestAssetStore::reset();
		parent::tearDown();
	}

	public function testArrayValues() {
		$obj1 = $this->objFromFixture(DataDifferencerTest\TestObject::class, 'obj1');
		$beforeVersion = $obj1->Version;
		// create a new version
		$obj1->Choices = 'a';
		$obj1->write();
		$afterVersion = $obj1->Version;
		$obj1v1 = Versioned::get_version(DataDifferencerTest\TestObject::class, $obj1->ID, $beforeVersion);
		$obj1v2 = Versioned::get_version(DataDifferencerTest\TestObject::class, $obj1->ID, $afterVersion);
		$differ = new DataDifferencer($obj1v1, $obj1v2);
		$obj1Diff = $differ->diffedData();
		// TODO Using getter would split up field again, bug only caused by simulating
		// an array-based value in the first place.
		$this->assertContains('<ins>a</ins><del>a,b</del>', str_replace(' ','',$obj1Diff->getField('Choices')));
	}

	public function testHasOnes() {
		/** @var DataDifferencerTest\TestObject $obj1 */
		$obj1 = $this->objFromFixture(DataDifferencerTest\TestObject::class, 'obj1');
		$image1 = $this->objFromFixture(Image::class, 'image1');
		$image2 = $this->objFromFixture(Image::class, 'image2');
		$relobj2 = $this->objFromFixture(DataDifferencerTest\HasOneRelationObject::class, 'relobj2');

		// create a new version
		$beforeVersion = $obj1->Version;
		$obj1->ImageID = $image2->ID;
		$obj1->HasOneRelationID = $relobj2->ID;
		$obj1->write();
		$afterVersion = $obj1->Version;
		$this->assertNotEquals($beforeVersion, $afterVersion);
		/** @var DataDifferencerTest\TestObject $obj1v1 */
		$obj1v1 = Versioned::get_version(DataDifferencerTest\TestObject::class, $obj1->ID, $beforeVersion);
		/** @var DataDifferencerTest\TestObject $obj1v2 */
		$obj1v2 = Versioned::get_version(DataDifferencerTest\TestObject::class, $obj1->ID, $afterVersion);
		$differ = new DataDifferencer($obj1v1, $obj1v2);
		$obj1Diff = $differ->diffedData();

		/** @skipUpgrade */
		$this->assertContains($image1->Name, $obj1Diff->getField('Image'));
		/** @skipUpgrade */
		$this->assertContains($image2->Name, $obj1Diff->getField('Image'));
		$this->assertContains(
			'<ins>obj2</ins><del>obj1</del>',
			str_replace(' ', '', $obj1Diff->getField('HasOneRelationID'))
		);
	}
}