How to use the checkov.terraform.checks.resource.aws.LaunchConfigurationEBSEncryption.check.scan_resource_conf function in checkov

def test_failure(self):
        resource_conf = {'image_id': ['ami-123'], 'instance_type': ['t2.micro'],
                         'root_block_device': [{'encrypted': [False]}]}
        scan_result = check.scan_resource_conf(conf=resource_conf)
        self.assertEqual(CheckResult.FAILED, scan_result)

def test_success(self):
        resource_conf = {'image_id': ['ami-123'], 'instance_type': ['t2.micro'],
                         'root_block_device': [{'encrypted': [True]}]}
        scan_result = check.scan_resource_conf(conf=resource_conf)
        self.assertEqual(CheckResult.PASSED, scan_result)

def test_failure_missing_element(self):
        resource_conf = {'image_id': ['ami-123'], 'instance_type': ['t2.micro'], 'root_block_device': [{}]}
        scan_result = check.scan_resource_conf(conf=resource_conf)
        self.assertEqual(CheckResult.FAILED, scan_result)