public function testInvoke()
{
$this->server->shouldReceive('issueAccessToken')->once()->andReturn(['accessToken' => 'foo']);
$action = $this->action;
/** @var Response $response */
$response = $action($this->newTonisRequest('/'), $this->newTonisResponse());
$this->assertInstanceOf(Response::class, $response);
$this->assertSame(200, $response->getStatusCode());
$this->assertContains('foo', (string) $response->getBody());
}
