File: PrefixingStatsdDataFactoryProxyTest.php

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<?php

namespace Wikimedia\Tests\Stats;

use Liuggio\StatsdClient\Factory\StatsdDataFactoryInterface;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;
use Wikimedia\Stats\PrefixingStatsdDataFactoryProxy;

/**
 * @covers \Wikimedia\Stats\PrefixingStatsdDataFactoryProxy
 */
class PrefixingStatsdDataFactoryProxyTest extends TestCase {

	public static function provideMethodNames() {
		return [
			[ 'timing' ],
			[ 'gauge' ],
			[ 'set' ],
			[ 'increment' ],
			[ 'decrement' ],
			[ 'updateCount' ],
			[ 'produceStatsdData' ],
		];
	}

	/**
	 * @dataProvider provideMethodNames
	 */
	public function testPrefixingAndPassthrough( $method ) {
		/** @var StatsdDataFactoryInterface|MockObject $innerFactory */
		$innerFactory = $this->createMock(
			StatsdDataFactoryInterface::class
		);
		$innerFactory->expects( $this->once() )
			->method( $method )
			->with( 'testprefix.metricname' );

		$proxy = new PrefixingStatsdDataFactoryProxy( $innerFactory, 'testprefix' );
		// 1,2,3,4 simply makes sure we provide enough parameters, without caring what they are
		$proxy->$method( 'metricname', 1, 2, 3, 4 );
	}

	/**
	 * @dataProvider provideMethodNames
	 */
	public function testPrefixIsTrimmed( $method ) {
		/** @var StatsdDataFactoryInterface|MockObject $innerFactory */
		$innerFactory = $this->createMock(
			StatsdDataFactoryInterface::class
		);
		$innerFactory->expects( $this->once() )
			->method( $method )
			->with( 'testprefix.metricname' );

		$proxy = new PrefixingStatsdDataFactoryProxy( $innerFactory, 'testprefix...' );
		// 1,2,3,4 simply makes sure we provide enough parameters, without caring what they are
		$proxy->$method( 'metricname', 1, 2, 3, 4 );
	}

}