DatabaseLagTest.php
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DatabaseLagTest.php
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	<?php

	namespace MediaWiki\Tests\Maintenance;

	use Wikimedia\Rdbms\ILoadBalancer;

	/**
	* @covers \DatabaseLag
	* @group Maintenance
	*/
	class DatabaseLagTest extends MaintenanceBaseTestCase {

	public function getMaintenanceClass() {
	return \DatabaseLag::class;
	}

	public static function provideLagTimes() {
	return [
	'No lag' => [ 0, 'db-nolag-01', '/^db-nolag-01\s+0$/m' ],
	'Some lag' => [ 42, 'db-somelag-02', '/^db-somelag-02\s+42$/m' ],
	'Not replicating' => [
	false, 'db-not-replicating-03',
	'/db-not-replicating-03\s+replication stopped or errored$/m'
	],
	];
	}

	/**
	* @dataProvider provideLagTimes
	*/
	public function testReportedOutput( $lag, $servername, $expected ) {
	$lb = $this->createMock( ILoadBalancer::class );
	$lb->method( 'getLagTimes' )->willReturn( [ $lag ] );
	$lb->method( 'getServerName' )->willReturn( $servername );

	$this->setService( 'DBLoadBalancer', $lb );

	$this->maintenance->setOption( '-r', false );
	$this->maintenance->execute();

	$this->maintenance->setOption( '-r', true );
	$this->maintenance->stopReporting = true;
	$this->maintenance->execute();

	$this->expectOutputRegex( $expected );
	}

	}