Test write to a file

logger.php

<?php

namespace Project\Log\tests\units;

use \mageekguy\atoum;

class Logger extends atoum\test
{

    public function testStdout()
    {
        $this
            ->assert('Log to default : output')
            ->given($this->newTestedInstance)
            ->and($str = 'test output to default')
            ->output(function () use ($str){
                $this->testedInstance->log($str);
            })->contains($str)

            ->assert('Log to specified output : php://output (like default?)')
            ->given($this->newTestedInstance('php://output'))
            ->and($str = 'test output to stdout')
            ->output(function () use ($str){
                $this->testedInstance->log($str);
            })->contains($str)

            ->assert('Log to a specified file')
            ->given(
                $str = 'test XXX output to a file',
                $file = \atoum\mock\streams\fs\file::get('testlog'),
                $this->newTestedInstance($file->getPath())
            )
            ->if($this->testedInstance->log($str))
                ->stream($file)->isWritten()
                ->string(file_get_contents($file->getPath()))
                ->contains($str)
        ;
    }
}