moodle/lib/phpunit/classes/advanced_testcase.php
Petr Škoda 71fc50031d MDL-38989 detect changed timeout in tests
The trouble is that PHPUnit should ideally test mostly low level libraries that should not change the timeouts.
2013-04-10 09:48:57 +02:00

425 lines
14 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Advanced test case.
*
* @package core
* @category phpunit
* @copyright 2012 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Advanced PHPUnit test case customised for Moodle.
*
* @package core
* @category phpunit
* @copyright 2012 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
abstract class advanced_testcase extends PHPUnit_Framework_TestCase {
/** @var bool automatically reset everything? null means log changes */
private $resetAfterTest;
/** @var moodle_transaction */
private $testdbtransaction;
/**
* Constructs a test case with the given name.
*
* Note: use setUp() or setUpBeforeClass() in your test cases.
*
* @param string $name
* @param array $data
* @param string $dataName
*/
final public function __construct($name = null, array $data = array(), $dataName = '') {
parent::__construct($name, $data, $dataName);
$this->setBackupGlobals(false);
$this->setBackupStaticAttributes(false);
$this->setRunTestInSeparateProcess(false);
}
/**
* Runs the bare test sequence.
* @return void
*/
final public function runBare() {
global $DB;
if (phpunit_util::$lastdbwrites != $DB->perf_get_writes()) {
// this happens when previous test does not reset, we can not use transactions
$this->testdbtransaction = null;
} else if ($DB->get_dbfamily() === 'postgres' or $DB->get_dbfamily() === 'mssql') {
// database must allow rollback of DDL, so no mysql here
$this->testdbtransaction = $DB->start_delegated_transaction();
}
try {
parent::runBare();
// set DB reference in case somebody mocked it in test
$DB = phpunit_util::get_global_backup('DB');
// Deal with any debugging messages.
phpunit_util::display_debugging_messages();
phpunit_util::reset_debugging();
} catch (Exception $e) {
// cleanup after failed expectation
phpunit_util::reset_all_data();
throw $e;
}
if (!$this->testdbtransaction or $this->testdbtransaction->is_disposed()) {
$this->testdbtransaction = null;
}
if ($this->resetAfterTest === true) {
if ($this->testdbtransaction) {
$DB->force_transaction_rollback();
phpunit_util::reset_all_database_sequences();
phpunit_util::$lastdbwrites = $DB->perf_get_writes(); // no db reset necessary
}
phpunit_util::reset_all_data(null);
} else if ($this->resetAfterTest === false) {
if ($this->testdbtransaction) {
$this->testdbtransaction->allow_commit();
}
// keep all data untouched for other tests
} else {
// reset but log what changed
if ($this->testdbtransaction) {
try {
$this->testdbtransaction->allow_commit();
} catch (dml_transaction_exception $e) {
phpunit_util::reset_all_data();
throw new coding_exception('Invalid transaction state detected in test '.$this->getName());
}
}
phpunit_util::reset_all_data(true);
}
// make sure test did not forget to close transaction
if ($DB->is_transaction_started()) {
phpunit_util::reset_all_data();
if ($this->getStatus() == PHPUnit_Runner_BaseTestRunner::STATUS_PASSED
or $this->getStatus() == PHPUnit_Runner_BaseTestRunner::STATUS_SKIPPED
or $this->getStatus() == PHPUnit_Runner_BaseTestRunner::STATUS_INCOMPLETE) {
throw new coding_exception('Test '.$this->getName().' did not close database transaction');
}
}
}
/**
* Creates a new FlatXmlDataSet with the given $xmlFile. (absolute path.)
*
* @param string $xmlFile
* @return PHPUnit_Extensions_Database_DataSet_FlatXmlDataSet
*/
protected function createFlatXMLDataSet($xmlFile) {
return new PHPUnit_Extensions_Database_DataSet_FlatXmlDataSet($xmlFile);
}
/**
* Creates a new XMLDataSet with the given $xmlFile. (absolute path.)
*
* @param string $xmlFile
* @return PHPUnit_Extensions_Database_DataSet_XmlDataSet
*/
protected function createXMLDataSet($xmlFile) {
return new PHPUnit_Extensions_Database_DataSet_XmlDataSet($xmlFile);
}
/**
* Creates a new CsvDataSet from the given array of csv files. (absolute paths.)
*
* @param array $files array tablename=>cvsfile
* @param string $delimiter
* @param string $enclosure
* @param string $escape
* @return PHPUnit_Extensions_Database_DataSet_CsvDataSet
*/
protected function createCsvDataSet($files, $delimiter = ',', $enclosure = '"', $escape = '"') {
$dataSet = new PHPUnit_Extensions_Database_DataSet_CsvDataSet($delimiter, $enclosure, $escape);
foreach($files as $table=>$file) {
$dataSet->addTable($table, $file);
}
return $dataSet;
}
/**
* Creates new ArrayDataSet from given array
*
* @param array $data array of tables, first row in each table is columns
* @return phpunit_ArrayDataSet
*/
protected function createArrayDataSet(array $data) {
return new phpunit_ArrayDataSet($data);
}
/**
* Load date into moodle database tables from standard PHPUnit data set.
*
* Note: it is usually better to use data generators
*
* @param PHPUnit_Extensions_Database_DataSet_IDataSet $dataset
* @return void
*/
protected function loadDataSet(PHPUnit_Extensions_Database_DataSet_IDataSet $dataset) {
global $DB;
$structure = phpunit_util::get_tablestructure();
foreach($dataset->getTableNames() as $tablename) {
$table = $dataset->getTable($tablename);
$metadata = $dataset->getTableMetaData($tablename);
$columns = $metadata->getColumns();
$doimport = false;
if (isset($structure[$tablename]['id']) and $structure[$tablename]['id']->auto_increment) {
$doimport = in_array('id', $columns);
}
for($r=0; $r<$table->getRowCount(); $r++) {
$record = $table->getRow($r);
if ($doimport) {
$DB->import_record($tablename, $record);
} else {
$DB->insert_record($tablename, $record);
}
}
if ($doimport) {
$DB->get_manager()->reset_sequence(new xmldb_table($tablename));
}
}
}
/**
* Call this method from test if you want to make sure that
* the resetting of database is done the slow way without transaction
* rollback.
*
* This is useful especially when testing stuff that is not compatible with transactions.
*
* @return void
*/
public function preventResetByRollback() {
if ($this->testdbtransaction and !$this->testdbtransaction->is_disposed()) {
$this->testdbtransaction->allow_commit();
$this->testdbtransaction = null;
}
}
/**
* Reset everything after current test.
* @param bool $reset true means reset state back, false means keep all data for the next test,
* null means reset state and show warnings if anything changed
* @return void
*/
public function resetAfterTest($reset = true) {
$this->resetAfterTest = $reset;
}
/**
* Return debugging messages from the current test.
* @return array with instances having 'message', 'level' and 'stacktrace' property.
*/
public function getDebuggingMessages() {
return phpunit_util::get_debugging_messages();
}
/**
* Clear all previous debugging messages in current test.
*/
public function resetDebugging() {
phpunit_util::reset_debugging();
}
/**
* Assert that exactly debugging was just called once.
*
* Discards the debugging message if successful.
*
* @param null|string $debugmessage null means any
* @param null|string $debuglevel null means any
* @param string $message
*/
public function assertDebuggingCalled($debugmessage = null, $debuglevel = null, $message = '') {
$debugging = phpunit_util::get_debugging_messages();
$count = count($debugging);
if ($count == 0) {
if ($message === '') {
$message = 'Expectation failed, debugging() not triggered.';
}
$this->fail($message);
}
if ($count > 1) {
if ($message === '') {
$message = 'Expectation failed, debugging() triggered '.$count.' times.';
}
$this->fail($message);
}
$this->assertEquals(1, $count);
$debug = reset($debugging);
if ($debugmessage !== null) {
$this->assertSame($debugmessage, $debug->message, $message);
}
if ($debuglevel !== null) {
$this->assertSame($debuglevel, $debug->level, $message);
}
phpunit_util::reset_debugging();
}
/**
* Call when no debugging() messages expected.
* @param string $message
*/
public function assertDebuggingNotCalled($message = '') {
$debugging = phpunit_util::get_debugging_messages();
$count = count($debugging);
if ($message === '') {
$message = 'Expectation failed, debugging() was triggered.';
}
$this->assertEquals(0, $count, $message);
}
/**
* Starts message redirection.
*
* You can verify if messages were sent or not by inspecting the messages
* array in the returned messaging sink instance. The redirection
* can be stopped by calling $sink->close();
*
* @return phpunit_message_sink
*/
public function redirectMessages() {
return phpunit_util::start_message_redirection();
}
/**
* Cleanup after all tests are executed.
*
* Note: do not forget to call this if overridden...
*
* @static
* @return void
*/
public static function tearDownAfterClass() {
phpunit_util::reset_all_data();
}
/**
* Reset all database tables, restore global state and clear caches and optionally purge dataroot dir.
* @static
* @return void
*/
public static function resetAllData() {
phpunit_util::reset_all_data();
}
/**
* Set current $USER, reset access cache.
* @static
* @param null|int|stdClass $user user record, null or 0 means non-logged-in, positive integer means userid
* @return void
*/
public static function setUser($user = null) {
global $CFG, $DB;
if (is_object($user)) {
$user = clone($user);
} else if (!$user) {
$user = new stdClass();
$user->id = 0;
$user->mnethostid = $CFG->mnet_localhost_id;
} else {
$user = $DB->get_record('user', array('id'=>$user));
}
unset($user->description);
unset($user->access);
unset($user->preference);
session_set_user($user);
}
/**
* Set current $USER to admin account, reset access cache.
* @static
* @return void
*/
public static function setAdminUser() {
self::setUser(2);
}
/**
* Set current $USER to guest account, reset access cache.
* @static
* @return void
*/
public static function setGuestUser() {
self::setUser(1);
}
/**
* Get data generator
* @static
* @return testing_data_generator
*/
public static function getDataGenerator() {
return phpunit_util::get_data_generator();
}
/**
* Recursively visit all the files in the source tree. Calls the callback
* function with the pathname of each file found.
*
* @param string $path the folder to start searching from.
* @param string $callback the method of this class to call with the name of each file found.
* @param string $fileregexp a regexp used to filter the search (optional).
* @param bool $exclude If true, pathnames that match the regexp will be ignored. If false,
* only files that match the regexp will be included. (default false).
* @param array $ignorefolders will not go into any of these folders (optional).
* @return void
*/
public function recurseFolders($path, $callback, $fileregexp = '/.*/', $exclude = false, $ignorefolders = array()) {
$files = scandir($path);
foreach ($files as $file) {
$filepath = $path .'/'. $file;
if (strpos($file, '.') === 0) {
/// Don't check hidden files.
continue;
} else if (is_dir($filepath)) {
if (!in_array($filepath, $ignorefolders)) {
$this->recurseFolders($filepath, $callback, $fileregexp, $exclude, $ignorefolders);
}
} else if ($exclude xor preg_match($fileregexp, $filepath)) {
$this->$callback($filepath);
}
}
}
}