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<?php
namespace Wikimedia\Tests\Stats;
use PHPUnit\Framework\TestCase;
use Wikimedia\Stats\BufferingStatsdDataFactory;
use Wikimedia\TestingAccessWrapper;
/**
* @covers \Wikimedia\Stats\BufferingStatsdDataFactory
*/
class BufferingStatsdDataFactoryTest extends TestCase {
public static function provideNormalizeMetricKey() {
// Reasonable and relied upon
yield 'Keep empty string' => [ '', '' ];
yield 'Keep normal' => [ 'foo.BarbaraBar.baz_quux', 'foo.BarbaraBar.baz_quux' ];
yield 'Skip empty segments' => [ '.missing.start.end.', 'missing.start.end' ];
yield 'Strip separator prefix' => [ '\\Vendor\\Class::method.x', 'Vendor_Class.method.x' ];
// Unreasonable and may change, here to self-document current behaviour
yield [ '__double__under__', 'double_under' ];
yield [ '.:!:.paamayim.:!:.nekudotayim.:!:.', 'paamayim._.nekudotayim' ];
yield [ 'first----.!!.!!.-second', 'first_._._._second' ];
}
/**
* @dataProvider provideNormalizeMetricKey
*/
public function testNormalizeMetricKey( string $input, string $expected ) {
$stats = TestingAccessWrapper::newFromClass( BufferingStatsdDataFactory::class );
$this->assertSame( $expected, $stats->normalizeMetricKey( $input ) );
}
}
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