public function testDiffNoenv()
{
$exit_status = $this->_commandTester->execute(array('command' => $this->_commandName, '--magento-root' => $this->_magentoRoot, 'config-yaml-file' => __DIR__ . "/data/base_noenv_GBP.yaml"));
$this->assertNotEmpty($this->_commandTester->getDisplay());
$this->assertCount(3, explode("\n", trim($this->_commandTester->getDisplay())));
$this->assertEquals(3, $exit_status);
}