public function testSetVerbosityQuiet() { $this->io = $this->getMockBuilder('Webmozart\\Console\\Api\\IO\\IO')->disableOriginalConstructor()->getMock(); $this->output = new IOOutput($this->io); $this->io->expects($this->once())->method('setQuiet')->with(true); $this->output->setVerbosity(OutputInterface::VERBOSITY_QUIET); }