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<?php
/*
* Copyright 2016 Google LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
namespace Google\ApiCore\Testing;
use Google\Protobuf\Internal\Message;
use Google\Rpc\Status;
use UnderflowException;
/**
* The MockStubTrait is used by generated mock stub classes which extent \Grpc\BaseStub
* (https://github.com/grpc/grpc/blob/master/src/php/lib/Grpc/BaseStub.php)
* It provides functionality to add responses, get received calls, and overrides the _simpleRequest
* method so that the elements of $responses are returned instead of making a call to the API.
*/
trait MockStubTrait
{
private $receivedFuncCalls = [];
private $responses = [];
private $serverStreamingStatus = null;
private $callObjects = [];
private $deserialize;
public function __construct(callable $deserialize = null)
{
$this->deserialize = $deserialize;
}
/**
* Overrides the _simpleRequest method in \Grpc\BaseStub
* (https://github.com/grpc/grpc/blob/master/src/php/lib/Grpc/BaseStub.php)
* Returns a MockUnaryCall object that will return the first item from $responses
* @param string $method The API method name to be called
* @param \Google\Protobuf\Internal\Message $argument The request object to the API method
* @param callable $deserialize A function to deserialize the response object
* @param array $metadata
* @param array $options
* @return MockUnaryCall
*/
public function _simpleRequest(
$method,
$argument,
$deserialize,
array $metadata = [],
array $options = []
) {
$this->receivedFuncCalls[] = new ReceivedRequest($method, $argument, $deserialize, $metadata, $options);
if (count($this->responses) < 1) {
throw new UnderflowException("ran out of responses");
}
list($response, $status) = array_shift($this->responses);
$call = new MockUnaryCall($response, $deserialize, $status);
$this->callObjects[] = $call;
return $call;
}
/**
* Overrides the _clientStreamRequest method in \Grpc\BaseStub
* (https://github.com/grpc/grpc/blob/master/src/php/lib/Grpc/BaseStub.php)
* Returns a MockClientStreamingCall object that will return the first item from $responses
*
* @param string $method The name of the method to call
* @param callable $deserialize A function that deserializes the responses
* @param array $metadata A metadata map to send to the server
* (optional)
* @param array $options An array of options (optional)
*
* @return MockClientStreamingCall The active call object
*/
public function _clientStreamRequest(
$method,
$deserialize,
array $metadata = [],
array $options = []
) {
$this->receivedFuncCalls[] = new ReceivedRequest($method, null, $deserialize, $metadata, $options);
if (count($this->responses) < 1) {
throw new UnderflowException("ran out of responses");
}
list($response, $status) = array_shift($this->responses);
$call = new MockClientStreamingCall($response, $deserialize, $status);
$this->callObjects[] = $call;
return $call;
}
/**
* Overrides the _serverStreamRequest method in \Grpc\BaseStub
* (https://github.com/grpc/grpc/blob/master/src/php/lib/Grpc/BaseStub.php)
* Returns a MockServerStreamingCall object that will stream items from $responses, and return
* a final status of $serverStreamingStatus.
*
* @param string $method The name of the method to call
* @param \Google\Protobuf\Internal\Message $argument The argument to the method
* @param callable $deserialize A function that deserializes the responses
* @param array $metadata A metadata map to send to the server
* (optional)
* @param array $options An array of options (optional)
*
* @return MockServerStreamingCall The active call object
*/
public function _serverStreamRequest(
$method,
$argument,
$deserialize,
array $metadata = [],
array $options = []
) {
if (is_a($argument, '\Google\Protobuf\Internal\Message')) {
/** @var Message $newArgument */
$newArgument = new $argument();
$newArgument->mergeFromString($argument->serializeToString());
$argument = $newArgument;
}
$this->receivedFuncCalls[] = new ReceivedRequest($method, $argument, $deserialize, $metadata, $options);
$responses = MockStubTrait::stripStatusFromResponses($this->responses);
$this->responses = [];
$call = new MockServerStreamingCall($responses, $deserialize, $this->serverStreamingStatus);
$this->callObjects[] = $call;
return $call;
}
/**
* Overrides the _bidiRequest method in \Grpc\BaseStub
* (https://github.com/grpc/grpc/blob/master/src/php/lib/Grpc/BaseStub.php)
* Returns a MockBidiStreamingCall object that will stream items from $responses, and return
* a final status of $serverStreamingStatus.
*
* @param string $method The name of the method to call
* @param callable $deserialize A function that deserializes the responses
* @param array $metadata A metadata map to send to the server
* (optional)
* @param array $options An array of options (optional)
*
* @return MockBidiStreamingCall The active call object
*/
public function _bidiRequest(
$method,
$deserialize,
array $metadata = [],
array $options = []
) {
$this->receivedFuncCalls[] = new ReceivedRequest($method, null, $deserialize, $metadata, $options);
$responses = MockStubTrait::stripStatusFromResponses($this->responses);
$this->responses = [];
$call = new MockBidiStreamingCall($responses, $deserialize, $this->serverStreamingStatus);
$this->callObjects[] = $call;
return $call;
}
public static function stripStatusFromResponses($responses)
{
$strippedResponses = [];
foreach ($responses as $response) {
list($resp, $_) = $response;
$strippedResponses[] = $resp;
}
return $strippedResponses;
}
/**
* Add a response object, and an optional status, to the list of responses to be returned via
* _simpleRequest.
* @param \Google\Protobuf\Internal\Message $response
* @param Status $status
*/
public function addResponse($response, $status = null)
{
if (!$this->deserialize && $response) {
$this->deserialize = [get_class($response), 'decode'];
}
if (is_a($response, '\Google\Protobuf\Internal\Message')) {
$response = $response->serializeToString();
}
$this->responses[] = [$response, $status];
}
/**
* Set the status object to be used when creating streaming calls.
*
* @param Status $status
*/
public function setStreamingStatus($status)
{
$this->serverStreamingStatus = $status;
}
/**
* Return a list of calls made to _simpleRequest, and clear $receivedFuncCalls.
*
* @return ReceivedRequest[] An array of received requests
*/
public function popReceivedCalls()
{
$receivedFuncCallsTemp = $this->receivedFuncCalls;
$this->receivedFuncCalls = [];
return $receivedFuncCallsTemp;
}
/**
* @return int The number of calls received.
*/
public function getReceivedCallCount()
{
return count($this->receivedFuncCalls);
}
/**
* @return mixed[] The call objects created by calls to the stub
*/
public function popCallObjects()
{
$callObjectsTemp = $this->callObjects;
$this->callObjects = [];
return $callObjectsTemp;
}
/**
* @return bool True if $receivedFuncCalls and $response are empty.
*/
public function isExhausted()
{
return count($this->receivedFuncCalls) === 0
&& count($this->responses) === 0;
}
/**
* @param mixed $responseObject
* @param Status|null $status
* @param callable $deserialize
* @return static An instance of the current class type.
*/
public static function create($responseObject, $status = null, $deserialize = null)
{
$stub = new static($deserialize); // @phpstan-ignore-line
$stub->addResponse($responseObject, $status);
return $stub;
}
/**
* Creates a sequence such that the responses are returned in order.
* @param mixed[] $sequence
* @param callable $deserialize
* @param Status $finalStatus
* @return static An instance of the current class type.
*/
public static function createWithResponseSequence($sequence, $deserialize = null, $finalStatus = null)
{
$stub = new static($deserialize); // @phpstan-ignore-line
foreach ($sequence as $elem) {
if (count($elem) == 1) {
list($resp, $status) = [$elem, null];
} else {
list($resp, $status) = $elem;
}
$stub->addResponse($resp, $status);
}
if ($finalStatus) {
$stub->setStreamingStatus($finalStatus);
}
return $stub;
}
}