public function testClear()
{
$environment = $this->getMockBuilder(Environment::class)->disableOriginalConstructor()->getMock();
$workflow = $this->getMockBuilder(Workflow::class)->disableOriginalConstructor()->getMock();
$workflows = $this->getMockBuilder(Workflows::class)->disableOriginalConstructor()->getMock();
$environment->workflows = $workflows;
$this->site->id = 'site_id';
$environment->id = 'env_id';
$workflows->expects($this->once())->method('create')->with('clear_redis_cache')->willReturn($workflow);
$return_workflow = $this->model->clear($environment);
$this->assertEquals($workflow, $return_workflow);
}