public function testWritesALineForEachShrinkingAttempt()
{
$this->log->shrinking([22], new \PHPUnit_Framework_AssertionFailedError("Failed asserting that..."));
$this->assertEquals("[2011-03-13T07:06:40+00:00][1234] shrinking: [22]" . PHP_EOL, file_get_contents($this->file));
}