moodle/lib/behat/classes/behat_config_manager.php

280 lines
9.7 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/>.
/**
* Utils to set Behat config
*
* @package core
* @category test
* @copyright 2012 David Monllaó
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once(__DIR__ . '/../lib.php');
require_once(__DIR__ . '/behat_command.php');
require_once(__DIR__ . '/../../testing/classes/tests_finder.php');
/**
* Behat configuration manager
*
* Creates/updates Behat config files getting tests
* and steps from Moodle codebase
*
* @package core
* @category test
* @copyright 2012 David Monllaó
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class behat_config_manager {
/**
* Updates a config file
*
* The tests runner and the steps definitions list uses different
* config files to avoid problems with concurrent executions.
*
* The steps definitions list can be filtered by component so it's
* behat.yml is different from the $CFG->dirroot one.
*
* @param string $component Restricts the obtained steps definitions to the specified component
* @param string $testsrunner If the config file will be used to run tests
* @return void
*/
public static function update_config_file($component = '', $testsrunner = true) {
global $CFG;
// Behat must have a separate behat.yml to have access to the whole set of features and steps definitions.
if ($testsrunner === true) {
$configfilepath = behat_command::get_behat_dir() . '/behat.yml';
} else {
// Alternative for steps definitions filtering, one for each user.
$configfilepath = self::get_steps_list_config_filepath();
}
// Gets all the components with features.
$features = array();
$components = tests_finder::get_components_with_tests('features');
if ($components) {
foreach ($components as $componentname => $path) {
$path = self::clean_path($path) . self::get_behat_tests_path();
if (empty($featurespaths[$path]) && file_exists($path)) {
// Standarizes separator (some dirs. comes with OS-dependant separator).
$uniquekey = str_replace('\\', '/', $path);
$featurespaths[$uniquekey] = $path;
}
}
$features = array_values($featurespaths);
}
// Gets all the components with steps definitions.
$stepsdefinitions = array();
$steps = self::get_components_steps_definitions();
if ($steps) {
foreach ($steps as $key => $filepath) {
if ($component == '' || $component === $key) {
$stepsdefinitions[$key] = $filepath;
}
}
}
// Behat config file specifing the main context class,
// the required Behat extensions and Moodle test wwwroot.
$contents = self::get_config_file_contents($features, $stepsdefinitions);
// Stores the file.
if (!file_put_contents($configfilepath, $contents)) {
behat_error(BEHAT_EXITCODE_PERMISSIONS, 'File ' . $configfilepath . ' can not be created');
}
}
/**
* Gets the list of Moodle steps definitions
*
* Class name as a key and the filepath as value
*
* Externalized from update_config_file() to use
* it from the steps definitions web interface
*
* @return array
*/
public static function get_components_steps_definitions() {
$components = tests_finder::get_components_with_tests('stepsdefinitions');
if (!$components) {
return false;
}
$stepsdefinitions = array();
foreach ($components as $componentname => $componentpath) {
$componentpath = self::clean_path($componentpath);
if (!file_exists($componentpath . self::get_behat_tests_path())) {
continue;
}
$diriterator = new DirectoryIterator($componentpath . self::get_behat_tests_path());
$regite = new RegexIterator($diriterator, '|behat_.*\.php$|');
// All behat_*.php inside behat_config_manager::get_behat_tests_path() are added as steps definitions files.
foreach ($regite as $file) {
$key = $file->getBasename('.php');
$stepsdefinitions[$key] = $file->getPathname();
}
}
return $stepsdefinitions;
}
/**
* Returns the behat config file path used by the steps definition list
*
* Note this can only be called from web-based scripts so it will return the
* production dataroot not behat_dataroot. With this the steps definitions
* list is accessible without having to install the behat test site.
*
* @return string
*/
public static function get_steps_list_config_filepath() {
global $USER;
$userdir = behat_command::get_behat_dir() . '/users/' . $USER->id;
make_writable_directory($userdir);
return $userdir . '/behat.yml';
}
/**
* Behat config file specifing the main context class,
* the required Behat extensions and Moodle test wwwroot.
*
* @param array $features The system feature files
* @param array $stepsdefinitions The system steps definitions
* @return string
*/
protected static function get_config_file_contents($features, $stepsdefinitions) {
global $CFG;
// We require here when we are sure behat dependencies are available.
require_once($CFG->dirroot . '/vendor/autoload.php');
$basedir = $CFG->dirroot . DIRECTORY_SEPARATOR . 'lib' . DIRECTORY_SEPARATOR . 'behat';
$config = array(
'default' => array(
'paths' => array(
'features' => $basedir . DIRECTORY_SEPARATOR . 'features',
'bootstrap' => $basedir . DIRECTORY_SEPARATOR . 'features' . DIRECTORY_SEPARATOR . 'bootstrap',
),
'context' => array(
'class' => 'behat_init_context'
),
'extensions' => array(
'Behat\MinkExtension\Extension' => array(
'base_url' => $CFG->behat_wwwroot,
'goutte' => null,
'selenium2' => null
),
'Moodle\BehatExtension\Extension' => array(
'features' => $features,
'steps_definitions' => $stepsdefinitions
)
),
'formatter' => array(
'name' => 'progress'
)
)
);
// In case user defined overrides respect them over our default ones.
if (!empty($CFG->behat_config)) {
$config = self::merge_config($config, $CFG->behat_config);
}
return Symfony\Component\Yaml\Yaml::dump($config, 10, 2);
}
/**
* Overrides default config with local config values
*
* array_merge does not merge completely the array's values
*
* @param mixed $config The node of the default config
* @param mixed $localconfig The node of the local config
* @return mixed The merge result
*/
protected static function merge_config($config, $localconfig) {
if (!is_array($config) && !is_array($localconfig)) {
return $localconfig;
}
// Local overrides also deeper default values.
if (is_array($config) && !is_array($localconfig)) {
return $localconfig;
}
foreach ($localconfig as $key => $value) {
// If defaults are not as deep as local values let locals override.
if (!is_array($config)) {
unset($config);
}
// Add the param if it doesn't exists or merge branches.
if (empty($config[$key])) {
$config[$key] = $value;
} else {
$config[$key] = self::merge_config($config[$key], $localconfig[$key]);
}
}
return $config;
}
/**
* Cleans the path returned by get_components_with_tests() to standarize it
*
* @see tests_finder::get_all_directories_with_tests() it returns the path including /tests/
* @param string $path
* @return string The string without the last /tests part
*/
protected final static function clean_path($path) {
$path = rtrim($path, DIRECTORY_SEPARATOR);
$parttoremove = DIRECTORY_SEPARATOR . 'tests';
$substr = substr($path, strlen($path) - strlen($parttoremove));
if ($substr == $parttoremove) {
$path = substr($path, 0, strlen($path) - strlen($parttoremove));
}
return rtrim($path, DIRECTORY_SEPARATOR);
}
/**
* The relative path where components stores their behat tests
*
* @return string
*/
protected final static function get_behat_tests_path() {
return DIRECTORY_SEPARATOR . 'tests' . DIRECTORY_SEPARATOR . 'behat';
}
}