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<?php
namespace Codeception\Module;
use Codeception\Lib\Interfaces\RequiresPackage;
use Codeception\Module as CodeceptionModule;
use Codeception\Configuration as Configuration;
use Codeception\Exception\ModuleConfigException;
use Codeception\Exception\ModuleException;
use Codeception\Lib\Driver\MongoDb as MongoDbDriver;
use Codeception\TestInterface;
/**
* Works with MongoDb database.
*
* The most important function of this module is cleaning database before each test.
* To have your database properly cleaned you should configure it to access the database.
*
* In order to have your database populated with data you need a valid js file with data (of the same style which can be fed up to mongo binary)
* File can be generated by RockMongo export command
* You can also use directoy, generated by ```mongodump``` tool or it's ```.tar.gz``` archive (not available for Windows systems), generated by ```tar -czf <archve_file_name>.tar.gz <path_to dump directory>```.
* Just put it in ``` tests/_data ``` dir (by default) and specify path to it in config.
* Next time after database is cleared all your data will be restored from dump.
* The DB preparation should as following:
* - clean database
* - system collection system.users should contain the user which will be authenticated while script performs DB operations
*
* Connection is done by MongoDb driver, which is stored in Codeception\Lib\Driver namespace.
* Check out the driver if you get problems loading dumps and cleaning databases.
*
* ## Status
*
* * Maintainer: **judgedim**, **davert**
* * Stability: **beta**
* * Contact: davert@codeception.com
*
* *Please review the code of non-stable modules and provide patches if you have issues.*
*
* ## Config
*
* * dsn *required* - MongoDb DSN with the db name specified at the end of the host after slash
* * user *required* - user to access database
* * password *required* - password
* * dump_type *required* - type of dump.
* One of 'js' (MongoDb::DUMP_TYPE_JS), 'mongodump' (MongoDb::DUMP_TYPE_MONGODUMP) or 'mongodump-tar-gz' (MongoDb::DUMP_TYPE_MONGODUMP_TAR_GZ).
* default: MongoDb::DUMP_TYPE_JS).
* * dump - path to database dump
* * populate: true - should the dump be loaded before test suite is started.
* * cleanup: true - should the dump be reloaded after each test
*
*/
class MongoDb extends CodeceptionModule implements RequiresPackage
{
const DUMP_TYPE_JS = 'js';
const DUMP_TYPE_MONGODUMP = 'mongodump';
const DUMP_TYPE_MONGODUMP_TAR_GZ = 'mongodump-tar-gz';
/**
* @api
* @var
*/
public $dbh;
/**
* @var
*/
protected $dumpFile;
protected $isDumpFileEmpty = true;
protected $config = [
'populate' => true,
'cleanup' => true,
'dump' => null,
'dump_type' => self::DUMP_TYPE_JS,
'user' => null,
'password' => null,
];
protected $populated = false;
/**
* @var \Codeception\Lib\Driver\MongoDb
*/
public $driver;
protected $requiredFields = ['dsn'];
public function _initialize()
{
try {
$this->driver = MongoDbDriver::create(
$this->config['dsn'],
$this->config['user'],
$this->config['password']
);
} catch (\MongoConnectionException $e) {
throw new ModuleException(__CLASS__, $e->getMessage() . ' while creating Mongo connection');
}
// starting with loading dump
if ($this->config['populate']) {
$this->cleanup();
$this->loadDump();
$this->populated = true;
}
}
private function validateDump()
{
if ($this->config['dump'] && ($this->config['cleanup'] or ($this->config['populate']))) {
if (!file_exists(Configuration::projectDir() . $this->config['dump'])) {
throw new ModuleConfigException(
__CLASS__,
"File with dump doesn't exist.\n
Please, check path for dump file: " . $this->config['dump']
);
}
$this->dumpFile = Configuration::projectDir() . $this->config['dump'];
$this->isDumpFileEmpty = false;
if ($this->config['dump_type'] === self::DUMP_TYPE_JS) {
$content = file_get_contents($this->dumpFile);
$content = trim(preg_replace('%/\*(?:(?!\*/).)*\*/%s', "", $content));
if (!sizeof(explode("\n", $content))) {
$this->isDumpFileEmpty = true;
}
return;
}
if ($this->config['dump_type'] === self::DUMP_TYPE_MONGODUMP) {
if (!is_dir($this->dumpFile)) {
throw new ModuleConfigException(
__CLASS__,
"Dump must be a directory.\n
Please, check dump: " . $this->config['dump']
);
}
$this->isDumpFileEmpty = true;
$dumpDir = dir($this->dumpFile);
while (false !== ($entry = $dumpDir->read())) {
if ($entity !== '..' && $entity !== '.') {
$this->isDumpFileEmpty = false;
break;
}
}
$dumpDir->close();
return;
}
if ($this->config['dump_type'] === self::DUMP_TYPE_MONGODUMP_TAR_GZ) {
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
throw new ModuleConfigException(
__CLASS__,
"Tar gunzip archives are not supported for Windows systems"
);
}
if (strlen($this->dumpFile) <= 7 || substr($this->dumpFile, -7) !== '.tar.gz') {
throw new ModuleConfigException(
__CLASS__,
"Dump file must be a valid tar gunzip archive.\n
Please, check dump file: " . $this->config['dump']
);
}
return;
}
throw new ModuleConfigException(
__CLASS__,
'\"dump_type\" must be one of ["'
. self::DUMP_TYPE_JS . '", "'
. self::DUMP_TYPE_MONGODUMP . '", "'
. self::DUMP_TYPE_MONGODUMP_TAR_GZ . '"].'
);
}
}
public function _before(TestInterface $test)
{
if ($this->config['cleanup'] && !$this->populated) {
$this->cleanup();
$this->loadDump();
}
}
public function _after(TestInterface $test)
{
$this->populated = false;
}
protected function cleanup()
{
$dbh = $this->driver->getDbh();
if (!$dbh) {
throw new ModuleConfigException(
__CLASS__,
"No connection to database. Remove this module from config if you don't need database repopulation"
);
}
try {
$this->driver->cleanup();
} catch (\Exception $e) {
throw new ModuleException(__CLASS__, $e->getMessage());
}
}
protected function loadDump()
{
if ($this->isDumpFileEmpty) {
return;
}
try {
if ($this->config['dump_type'] === DUMP_TYPE_JS) {
$this->driver->load($this->dumpFile);
}
if ($this->config['dump_type'] === DUMP_TYPE_MONGODUMP) {
$this->driver->loadFromMongoDump($this->dumpFile);
}
if ($this->config['dump_type'] === DUMP_TYPE_MONGODUMP_TAR_GZ) {
$this->driver->loadFromTarGzMongoDump($this->dumpFile);
}
} catch (\Exception $e) {
throw new ModuleException(__CLASS__, $e->getMessage());
}
}
/**
* Specify the database to use
*
* ``` php
* <?php
* $I->useDatabase('db_1');
* ```
*
* @param $dbName
*/
public function useDatabase($dbName)
{
$this->driver->setDatabase($dbName);
}
/**
* Inserts data into collection
*
* ``` php
* <?php
* $I->haveInCollection('users', array('name' => 'John', 'email' => 'john@coltrane.com'));
* $user_id = $I->haveInCollection('users', array('email' => 'john@coltrane.com'));
* ```
*
* @param $collection
* @param array $data
*/
public function haveInCollection($collection, array $data)
{
$collection = $this->driver->getDbh()->selectCollection($collection);
if ($this->driver->isLegacy()) {
$collection->insert($data);
return $data['_id'];
} else {
$response = $collection->insertOne($data);
return $response->getInsertedId()->__toString();
}
}
/**
* Checks if collection contains an item.
*
* ``` php
* <?php
* $I->seeInCollection('users', array('name' => 'miles'));
* ```
*
* @param $collection
* @param array $criteria
*/
public function seeInCollection($collection, $criteria = [])
{
$collection = $this->driver->getDbh()->selectCollection($collection);
$res = $collection->count($criteria);
\PHPUnit_Framework_Assert::assertGreaterThan(0, $res);
}
/**
* Checks if collection doesn't contain an item.
*
* ``` php
* <?php
* $I->dontSeeInCollection('users', array('name' => 'miles'));
* ```
*
* @param $collection
* @param array $criteria
*/
public function dontSeeInCollection($collection, $criteria = [])
{
$collection = $this->driver->getDbh()->selectCollection($collection);
$res = $collection->count($criteria);
\PHPUnit_Framework_Assert::assertLessThan(1, $res);
}
/**
* Grabs a data from collection
*
* ``` php
* <?php
* $cursor = $I->grabFromCollection('users', array('name' => 'miles'));
* ```
*
* @param $collection
* @param array $criteria
* @return \MongoCursor
*/
public function grabFromCollection($collection, $criteria = [])
{
$collection = $this->driver->getDbh()->selectCollection($collection);
return $collection->findOne($criteria);
}
/**
* Grabs the documents count from a collection
*
* ``` php
* <?php
* $count = $I->grabCollectionCount('users');
* // or
* $count = $I->grabCollectionCount('users', array('isAdmin' => true));
* ```
*
* @param $collection
* @param array $criteria
* @return integer
*/
public function grabCollectionCount($collection, $criteria = [])
{
$collection = $this->driver->getDbh()->selectCollection($collection);
return $collection->count($criteria);
}
/**
* Asserts that an element in a collection exists and is an Array
*
* ``` php
* <?php
* $I->seeElementIsArray('users', array('name' => 'John Doe') , 'data.skills');
* ```
*
* @param String $collection
* @param Array $criteria
* @param String $elementToCheck
*/
public function seeElementIsArray($collection, $criteria = [], $elementToCheck = null)
{
$collection = $this->driver->getDbh()->selectCollection($collection);
$res = $collection->count(
array_merge(
$criteria,
[
$elementToCheck => ['$exists' => true],
'$where' => "Array.isArray(this.{$elementToCheck})"
]
)
);
if ($res > 1) {
throw new \PHPUnit_Framework_ExpectationFailedException(
'Error: you should test against a single element criteria when asserting that elementIsArray'
);
}
\PHPUnit_Framework_Assert::assertEquals(1, $res, 'Specified element is not a Mongo Object');
}
/**
* Asserts that an element in a collection exists and is an Object
*
* ``` php
* <?php
* $I->seeElementIsObject('users', array('name' => 'John Doe') , 'data');
* ```
*
* @param String $collection
* @param Array $criteria
* @param String $elementToCheck
*/
public function seeElementIsObject($collection, $criteria = [], $elementToCheck = null)
{
$collection = $this->driver->getDbh()->selectCollection($collection);
$res = $collection->count(
array_merge(
$criteria,
[
$elementToCheck => ['$exists' => true],
'$where' => "! Array.isArray(this.{$elementToCheck}) && isObject(this.{$elementToCheck})"
]
)
);
if ($res > 1) {
throw new \PHPUnit_Framework_ExpectationFailedException(
'Error: you should test against a single element criteria when asserting that elementIsObject'
);
}
\PHPUnit_Framework_Assert::assertEquals(1, $res, 'Specified element is not a Mongo Object');
}
/**
* Count number of records in a collection
*
* ``` php
* <?php
* $I->seeNumElementsInCollection('users', 2);
* $I->seeNumElementsInCollection('users', 1, array('name' => 'miles'));
* ```
*
* @param $collection
* @param integer $expected
* @param array $criteria
*/
public function seeNumElementsInCollection($collection, $expected, $criteria = [])
{
$collection = $this->driver->getDbh()->selectCollection($collection);
$res = $collection->count($criteria);
\PHPUnit_Framework_Assert::assertSame($expected, $res);
}
/**
* Returns list of classes and corresponding packages required for this module
*/
public function _requires()
{
return ['MongoDB\Client' => '"mongodb/mongodb": "^1.0"'];
}
}