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MWCallableUpdateTest.php
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MWCallableUpdateTest.php
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<?php
use MediaWiki\Deferred\MWCallableUpdate;
/**
* @covers \MediaWiki\Deferred\MWCallableUpdate
*/
class MWCallableUpdateTest extends MediaWikiUnitTestCase {
/** @var int */
private $callbackMethodRan = 0;
public function testDoUpdate() {
$ran = 0;
$ranBy = '';
$caller = 'caller_name';
$update = new MWCallableUpdate(
static function ( $fname ) use ( &$ran, &$ranBy ) {
$ran++;
$ranBy = $fname;
},
$caller
);
$this->assertSame( 0, $ran );
$this->assertSame( '', $ranBy );
$update->doUpdate();
$this->assertSame( 1, $ran );
$this->assertSame( $caller, $ranBy );
$this->callbackMethodRan = 0;
$update = new MWCallableUpdate(
[ $this, 'callbackMethodWithNoArgs' ],
$caller
);
$this->assertSame( 0, $this->callbackMethodRan );
$update->doUpdate();
$this->assertSame( 1, $this->callbackMethodRan );
}
public function testCancel() {
// Prepare update and DB
$db = new DatabaseTestHelper( __METHOD__ );
$db->begin( __METHOD__ );
$ran = 0;
$update = new MWCallableUpdate( static function () use ( &$ran ) {
$ran++;
}, __METHOD__, $db );
// Emulate rollback
$db->rollback( __METHOD__ );
$update->doUpdate();
// Ensure it was cancelled
$this->assertSame( 0, $ran );
}
public function testCancelSome() {
// Prepare update and DB
$db1 = new DatabaseTestHelper( __METHOD__ );
$db1->begin( __METHOD__ );
$db2 = new DatabaseTestHelper( __METHOD__ );
$db2->begin( __METHOD__ );
$ran = 0;
$update = new MWCallableUpdate( static function () use ( &$ran ) {
$ran++;
}, __METHOD__, [ $db1, $db2 ] );
// Emulate rollback
$db1->rollback( __METHOD__ );
$update->doUpdate();
// Prevents: "Notice: DB transaction writes or callbacks still pending"
$db2->rollback( __METHOD__ );
// Ensure it was cancelled
$this->assertSame( 0, $ran );
}
public function testCancelAll() {
// Prepare update and DB
$db1 = new DatabaseTestHelper( __METHOD__ );
$db1->begin( __METHOD__ );
$db2 = new DatabaseTestHelper( __METHOD__ );
$db2->begin( __METHOD__ );
$ran = 0;
$update = new MWCallableUpdate( static function () use ( &$ran ) {
$ran++;
}, __METHOD__, [ $db1, $db2 ] );
// Emulate rollbacks
$db1->rollback( __METHOD__ );
$db2->rollback( __METHOD__ );
$update->doUpdate();
// Ensure it was cancelled
$this->assertSame( 0, $ran );
}
public function callbackMethodWithNoArgs() {
$this->callbackMethodRan++;
$this->assertSame( 0, func_num_args() );
}
}

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