I'm trying to build a class that queries an external API. Each method that corresponds to an endpoint makes a call to a 'master call' method responsible for actually sending a request to the API.
For example:
// $this->http is Guzzlehttp\Client 5.3
public function call($httpMethod, $endpoint, array $parameters = [])
{
$parameters = array_merge($parameters, [
'headers' => [
'something' => 'something'
]
]);
$request = $this->http->createRequest($httpMethod, $this->baseUrl . $endpoint, $parameters);
return $this->http->send($request);
}
public function getAll()
{
return $this->call('GET', 'all');
}
What I'm I supposed to mock? Should I use willBeCalled()
and/or willReturn()
on the http client's createRequest()
and send()
methods?
When I mock send()
, it says: Argument 1 passed to Double\GuzzleHttp\Client\P2::send() must implement interface GuzzleHttp\Message\RequestInterface, null given
and I'm not sure how to provide a fake for that, because creating a dummy for that interface requires me to implement 30 methods on that class.
Here's the test right now:
function it_lists_all_the_things(HttpClient $http)
{
$this->call('GET', 'all')->willBeCalled();
$http->createRequest()->willBeCalled();
$http->send()->willReturn(['foo' => 'bar']);
$this->getAll()->shouldHaveKeyWithValue('foo', 'bar');
}
You should mock the behaviour, something like this: