Test failure after checkout

[JeroenDeDauw]

PHPUnit 4.2.2 by Sebastian Bergmann.

Configuration read from /home/j/workspace/PPPEntityStore/phpunit.xml.dist

.E.............................................................  63 / 176 ( 35%)
............................................................... 126 / 176 ( 71%)
..................................................

Time: 3.99 seconds, Memory: 20.75Mb

There was 1 error:

1) Wikibase\EntityStore\MongoDBTest::testMongoDbStore
MongoConnectionException: Failed to connect to: localhost:27017: Connection refused

/home/j/workspace/PPPEntityStore/vendor/doctrine/mongodb/lib/Doctrine/MongoDB/Connection.php:285
/home/j/workspace/PPPEntityStore/vendor/doctrine/mongodb/lib/Doctrine/MongoDB/Connection.php:435
/home/j/workspace/PPPEntityStore/vendor/doctrine/mongodb/lib/Doctrine/MongoDB/Connection.php:286
/home/j/workspace/PPPEntityStore/vendor/doctrine/mongodb/lib/Doctrine/MongoDB/Connection.php:112
/home/j/workspace/PPPEntityStore/src/Config/EntityStoreFromConfigurationBuilder.php:85
/home/j/workspace/PPPEntityStore/src/Config/EntityStoreFromConfigurationBuilder.php:65
/home/j/workspace/PPPEntityStore/src/Config/EntityStoreFromConfigurationBuilder.php:28
/home/j/workspace/PPPEntityStore/src/Console/ImportJsonDumpCommand.php:31
/home/j/workspace/PPPEntityStore/vendor/symfony/console/Symfony/Component/Console/Command/Command.php:253
/home/j/workspace/PPPEntityStore/tests/integration/MongoDBTest.php:97
/home/j/workspace/PPPEntityStore/tests/integration/MongoDBTest.php:85
/home/j/workspace/PPPEntityStore/tests/integration/MongoDBTest.php:27

FAILURES!                              
Tests: 176, Assertions: 293, Errors: 1.

Test should be skipped if it can not be run.