How to assert mockery shouldReceive - laravel

Question

I'm trying to implement middleware unit test using Mockery
public function handle() {
// create user
$user = factory(User::class)->create();
// log in as admin user
$this->be($user, 'api');
$response = \Mockery::mock('Illuminate\Http\JsonResponse')->shouldReceive('getContent', 'setData')->once()->andReturn(json_encode(['data' => [], 'meta' => []]))->getMock();
$request = Request::create('/admin/customers', 'GET');
$middlewareResponse = $this->middleware->handle($request, function () use ($response) {
return $response;
});
print_r($middlewareResponse); exit;
}
How can I get setData and perform assertion?
here is the middlewareResponse
[_mockery_receivedMethodCalls:protected] => Mockery\ReceivedMethodCalls Object
(
[methodCalls:Mockery\ReceivedMethodCalls:private] => Array
(
[0] => Mockery\MethodCall Object
(
[method:Mockery\MethodCall:private] => getContent
[args:Mockery\MethodCall:private] => Array
(
)
)
[1] => Mockery\MethodCall Object
(
[method:Mockery\MethodCall:private] => setData
[args:Mockery\MethodCall:private] => Array
(
[0] => Array
(
[data] => Array
(
)
[meta] => Array
(
[home] => /customer/test/dashboard/consectetur-architecto-nostrum
)
)
)
)
)
)
Here is my HomePage middleware
class HomePage
{
/**
* Handle an incoming request.
*
* #param Request $request
* #param Closure $next
* #return mixed
*/
public function handle($request, Closure $next) {
// get original response
$response = $next($request);
$responseData = json_decode($response->getContent(), true);
$data['meta'] = [
'home' => null,
];
//print_r($response);exit;
if($response instanceof JsonResponse) {
// get banner meta data
$data['meta'] = $this->getHomePageUrl();
}
// merge meta data into original
$payloadWithMeta = array_merge_recursive($responseData, $data);
$response->setData($payloadWithMeta);
return $response;
}
/**
* generate dashboard url for user's first customer of first profile
*
* #return array
*/
private function getHomePageUrl() {
// first initialise an empty profile
$profile = null;
// fetch user's first customer
$user = Auth::user();
$customer = $user->customers()->orderBy('title')->first();
// set profile if customer found
if($customer) {
$customer->activateDatabase();
$profile = Profile::orderBy('title')->first();
}
return [
'home' => $profile ? 'customer/settings' : null
];
}
}
``