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0e1c34e51a
This config will be supported to avoid broken configuration in future. As this is limited, we need will still use ->behat_config to set config values which can't be set by behat_profiles
701 lines
26 KiB
PHP
701 lines
26 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Utils to set Behat config
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*
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* @package core
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* @category test
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* @copyright 2012 David Monllaó
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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require_once(__DIR__ . '/../lib.php');
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require_once(__DIR__ . '/behat_command.php');
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require_once(__DIR__ . '/../../testing/classes/tests_finder.php');
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/**
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* Behat configuration manager
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*
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* Creates/updates Behat config files getting tests
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* and steps from Moodle codebase
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*
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* @package core
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* @category test
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* @copyright 2012 David Monllaó
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class behat_config_manager {
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/**
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* @var bool Keep track of the automatic profile conversion. So we can notify user.
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*/
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public static $autoprofileconversion = false;
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/**
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* Updates a config file
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*
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* The tests runner and the steps definitions list uses different
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* config files to avoid problems with concurrent executions.
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*
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* The steps definitions list can be filtered by component so it's
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* behat.yml is different from the $CFG->dirroot one.
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*
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* @param string $component Restricts the obtained steps definitions to the specified component
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* @param string $testsrunner If the config file will be used to run tests
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* @param string $tags features files including tags.
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* @return void
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*/
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public static function update_config_file($component = '', $testsrunner = true, $tags = '') {
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global $CFG;
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// Behat must have a separate behat.yml to have access to the whole set of features and steps definitions.
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if ($testsrunner === true) {
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$configfilepath = behat_command::get_behat_dir() . '/behat.yml';
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} else {
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// Alternative for steps definitions filtering, one for each user.
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$configfilepath = self::get_steps_list_config_filepath();
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}
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// Gets all the components with features.
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$features = array();
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$components = tests_finder::get_components_with_tests('features');
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if ($components) {
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foreach ($components as $componentname => $path) {
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$path = self::clean_path($path) . self::get_behat_tests_path();
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if (empty($featurespaths[$path]) && file_exists($path)) {
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// Standarizes separator (some dirs. comes with OS-dependant separator).
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$uniquekey = str_replace('\\', '/', $path);
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$featurespaths[$uniquekey] = $path;
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}
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}
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foreach ($featurespaths as $path) {
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$additional = glob("$path/*.feature");
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$features = array_merge($features, $additional);
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}
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}
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// Optionally include features from additional directories.
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if (!empty($CFG->behat_additionalfeatures)) {
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$features = array_merge($features, array_map("realpath", $CFG->behat_additionalfeatures));
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}
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// Gets all the components with steps definitions.
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$stepsdefinitions = array();
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$steps = self::get_components_steps_definitions();
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if ($steps) {
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foreach ($steps as $key => $filepath) {
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if ($component == '' || $component === $key) {
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$stepsdefinitions[$key] = $filepath;
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}
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}
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}
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// We don't want the deprecated steps definitions here.
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if (!$testsrunner) {
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unset($stepsdefinitions['behat_deprecated']);
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}
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// Behat config file specifing the main context class,
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// the required Behat extensions and Moodle test wwwroot.
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$contents = self::get_config_file_contents(self::get_features_with_tags($features, $tags), $stepsdefinitions);
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// Stores the file.
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if (!file_put_contents($configfilepath, $contents)) {
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behat_error(BEHAT_EXITCODE_PERMISSIONS, 'File ' . $configfilepath . ' can not be created');
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}
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}
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/**
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* Search feature files for set of tags.
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*
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* @param array $features set of feature files.
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* @param string $tags list of tags (currently support && only.)
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* @return array filtered list of feature files with tags.
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*/
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public static function get_features_with_tags($features, $tags) {
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if (empty($tags)) {
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return $features;
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}
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$newfeaturelist = array();
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// Split tags in and and or.
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$tags = explode('&&', $tags);
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$andtags = array();
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$ortags = array();
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foreach ($tags as $tag) {
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// Explode all tags seperated by , and add it to ortags.
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$ortags = array_merge($ortags, explode(',', $tag));
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// And tags will be the first one before comma(,).
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$andtags[] = preg_replace('/,.*/', '', $tag);
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}
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foreach ($features as $featurefile) {
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$contents = file_get_contents($featurefile);
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$includefeature = true;
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foreach ($andtags as $tag) {
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// If negitive tag, then ensure it don't exist.
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if (strpos($tag, '~') !== false) {
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$tag = substr($tag, 1);
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if ($contents && strpos($contents, $tag) !== false) {
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$includefeature = false;
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break;
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}
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} else if ($contents && strpos($contents, $tag) === false) {
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$includefeature = false;
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break;
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}
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}
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// If feature not included then check or tags.
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if (!$includefeature && !empty($ortags)) {
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foreach ($ortags as $tag) {
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if ($contents && (strpos($tag, '~') === false) && (strpos($contents, $tag) !== false)) {
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$includefeature = true;
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break;
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}
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}
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}
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if ($includefeature) {
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$newfeaturelist[] = $featurefile;
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}
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}
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return $newfeaturelist;
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}
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/**
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* Gets the list of Moodle steps definitions
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*
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* Class name as a key and the filepath as value
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*
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* Externalized from update_config_file() to use
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* it from the steps definitions web interface
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*
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* @return array
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*/
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public static function get_components_steps_definitions() {
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$components = tests_finder::get_components_with_tests('stepsdefinitions');
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if (!$components) {
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return false;
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}
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$stepsdefinitions = array();
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foreach ($components as $componentname => $componentpath) {
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$componentpath = self::clean_path($componentpath);
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if (!file_exists($componentpath . self::get_behat_tests_path())) {
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continue;
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}
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$diriterator = new DirectoryIterator($componentpath . self::get_behat_tests_path());
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$regite = new RegexIterator($diriterator, '|behat_.*\.php$|');
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// All behat_*.php inside behat_config_manager::get_behat_tests_path() are added as steps definitions files.
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foreach ($regite as $file) {
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$key = $file->getBasename('.php');
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$stepsdefinitions[$key] = $file->getPathname();
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}
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}
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return $stepsdefinitions;
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}
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/**
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* Returns the behat config file path used by the steps definition list
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*
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* @return string
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*/
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public static function get_steps_list_config_filepath() {
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global $USER;
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// We don't cygwin-it as it is called using exec() which uses cmd.exe.
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$userdir = behat_command::get_behat_dir() . '/users/' . $USER->id;
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make_writable_directory($userdir);
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return $userdir . '/behat.yml';
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}
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/**
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* Returns the behat config file path used by the behat cli command.
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*
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* @param int $runprocess Runprocess.
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* @return string
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*/
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public static function get_behat_cli_config_filepath($runprocess = 0) {
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global $CFG;
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if ($runprocess) {
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if (isset($CFG->behat_parallel_run[$runprocess - 1 ]['behat_dataroot'])) {
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$command = $CFG->behat_parallel_run[$runprocess - 1]['behat_dataroot'];
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} else {
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$command = $CFG->behat_dataroot . $runprocess;
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}
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} else {
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$command = $CFG->behat_dataroot;
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}
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$command .= DIRECTORY_SEPARATOR . 'behat' . DIRECTORY_SEPARATOR . 'behat.yml';
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// Cygwin uses linux-style directory separators.
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if (testing_is_cygwin()) {
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$command = str_replace('\\', '/', $command);
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}
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return $command;
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}
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/**
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* Returns the path to the parallel run file which specifies if parallel test environment is enabled
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* and how many parallel runs to execute.
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*
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* @param int $runprocess run process for which behat dir is returned.
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* @return string
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*/
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public final static function get_parallel_test_file_path($runprocess = 0) {
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return behat_command::get_behat_dir($runprocess) . '/parallel_environment_enabled.txt';
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}
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/**
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* Returns number of parallel runs for which site is initialised.
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*
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* @param int $runprocess run process for which behat dir is returned.
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* @return int
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*/
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public final static function get_parallel_test_runs($runprocess = 0) {
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$parallelrun = 0;
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// Get parallel run info from first file and last file.
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$parallelrunconfigfile = self::get_parallel_test_file_path($runprocess);
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if (file_exists($parallelrunconfigfile)) {
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if ($parallel = file_get_contents($parallelrunconfigfile)) {
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$parallelrun = (int) $parallel;
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}
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}
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return $parallelrun;
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}
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/**
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* Drops parallel site links.
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*
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* @return bool true on success else false.
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*/
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public final static function drop_parallel_site_links() {
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global $CFG;
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// Get parallel test runs from first run.
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$parallelrun = self::get_parallel_test_runs(1);
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if (empty($parallelrun)) {
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return false;
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}
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// If parallel run then remove links and original file.
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clearstatcache();
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for ($i = 1; $i <= $parallelrun; $i++) {
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// Don't delete links for specified sites, as they should be accessible.
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if (!empty($CFG->behat_parallel_run['behat_wwwroot'][$i - 1]['behat_wwwroot'])) {
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continue;
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}
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$link = $CFG->dirroot . '/' . BEHAT_PARALLEL_SITE_NAME . $i;
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if (file_exists($link) && is_link($link)) {
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@unlink($link);
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}
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}
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return true;
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}
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/**
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* Create parallel site links.
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*
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* @param int $fromrun first run
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* @param int $torun last run.
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* @return bool true for sucess, else false.
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*/
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public final static function create_parallel_site_links($fromrun, $torun) {
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global $CFG;
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// Create site symlink if necessary.
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clearstatcache();
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for ($i = $fromrun; $i <= $torun; $i++) {
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// Don't create links for specified sites, as they should be accessible.
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if (!empty($CFG->behat_parallel_run['behat_wwwroot'][$i - 1]['behat_wwwroot'])) {
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continue;
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}
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$link = $CFG->dirroot.'/'.BEHAT_PARALLEL_SITE_NAME.$i;
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clearstatcache();
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if (file_exists($link)) {
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if (!is_link($link) || !is_dir($link)) {
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echo "File exists at link location ($link) but is not a link or directory!" . PHP_EOL;
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return false;
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}
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} else if (!symlink($CFG->dirroot, $link)) {
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// Try create link in case it's not already present.
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echo "Unable to create behat site symlink ($link)" . PHP_EOL;
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return false;
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}
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}
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return true;
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}
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/**
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* Behat config file specifing the main context class,
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* the required Behat extensions and Moodle test wwwroot.
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*
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* @param array $features The system feature files
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* @param array $stepsdefinitions The system steps definitions
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* @return string
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*/
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protected static function get_config_file_contents($features, $stepsdefinitions) {
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global $CFG;
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// We require here when we are sure behat dependencies are available.
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require_once($CFG->dirroot . '/vendor/autoload.php');
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$selenium2wdhost = array('wd_host' => 'http://localhost:4444/wd/hub');
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$parallelruns = self::get_parallel_test_runs();
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// If parallel run, then only divide features.
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if (!empty($CFG->behatrunprocess) && !empty($parallelruns)) {
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// Attempt to split into weighted buckets using timing information, if available.
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if ($alloc = self::profile_guided_allocate($features, max(1, $parallelruns), $CFG->behatrunprocess)) {
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$features = $alloc;
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} else {
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// Divide the list of feature files amongst the parallel runners.
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srand(crc32(floor(time() / 3600 / 24) . var_export($features, true)));
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shuffle($features);
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// Pull out the features for just this worker.
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if (count($features)) {
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$features = array_chunk($features, ceil(count($features) / max(1, $parallelruns)));
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// Check if there is any feature file for this process.
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if (!empty($features[$CFG->behatrunprocess - 1])) {
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$features = $features[$CFG->behatrunprocess - 1];
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} else {
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$features = null;
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}
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}
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}
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// Set proper selenium2 wd_host if defined.
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if (!empty($CFG->behat_parallel_run[$CFG->behatrunprocess - 1]['wd_host'])) {
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$selenium2wdhost = array('wd_host' => $CFG->behat_parallel_run[$CFG->behatrunprocess - 1]['wd_host']);
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}
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}
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// It is possible that it has no value as we don't require a full behat setup to list the step definitions.
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if (empty($CFG->behat_wwwroot)) {
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$CFG->behat_wwwroot = 'http://itwillnotbeused.com';
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}
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// Comments use black color, so failure path is not visible. Using color other then black/white is safer.
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// https://github.com/Behat/Behat/pull/628.
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$config = array(
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'default' => array(
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'formatters' => array(
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'moodle_progress' => array(
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'output_styles' => array(
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'comment' => array('magenta'))
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)
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),
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'suites' => array(
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'default' => array(
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'paths' => $features,
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'contexts' => array_keys($stepsdefinitions)
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)
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),
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'extensions' => array(
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'Behat\MinkExtension' => array(
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'base_url' => $CFG->behat_wwwroot,
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'goutte' => null,
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'selenium2' => $selenium2wdhost
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),
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'Moodle\BehatExtension' => array(
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'moodledirroot' => $CFG->dirroot,
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'steps_definitions' => $stepsdefinitions
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)
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)
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)
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);
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// In case user defined overrides respect them over our default ones.
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if (!empty($CFG->behat_config)) {
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foreach ($CFG->behat_config as $profile => $values) {
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$config = self::merge_config($config, self::merge_behat_config($profile, $values));
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}
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}
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// Check for Moodle custom ones.
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if (!empty($CFG->behat_profiles) && is_array($CFG->behat_profiles)) {
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foreach ($CFG->behat_profiles as $profile => $values) {
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$config = self::merge_config($config, self::get_behat_profile($profile, $values));
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}
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}
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return Symfony\Component\Yaml\Yaml::dump($config, 10, 2);
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}
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/**
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* Parse $CFG->behat_config and return the array with required config structure for behat.yml
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*
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* @param string $profile profile name
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* @param array $values values for profile
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* @return array
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*/
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protected static function merge_behat_config($profile, $values) {
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// Only add profile which are compatible with Behat 3.x
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// Just check if any of Bheat 2.5 config is set. Not checking for 3.x as it might have some other configs
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// Like : rerun_cache etc.
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if (!isset($values['filters']['tags']) && !isset($values['extensions']['Behat\MinkExtension\Extension'])) {
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return array($profile => $values);
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}
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// Parse 2.5 format and get related values.
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$oldconfigvalues = array();
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if (isset($values['extensions']['Behat\MinkExtension\Extension'])) {
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$extensionvalues = $values['extensions']['Behat\MinkExtension\Extension'];
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if (isset($extensionvalues['selenium2']['browser'])) {
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$oldconfigvalues['browser'] = $extensionvalues['selenium2']['browser'];
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}
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if (isset($extensionvalues['selenium2']['wd_host'])) {
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$oldconfigvalues['wd_host'] = $extensionvalues['selenium2']['wd_host'];
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}
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if (isset($extensionvalues['capabilities'])) {
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$oldconfigvalues['capabilities'] = $extensionvalues['capabilities'];
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}
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}
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if (isset($values['filters']['tags'])) {
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$oldconfigvalues['tags'] = $values['filters']['tags'];
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}
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if (!empty($oldconfigvalues)) {
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self::$autoprofileconversion = true;
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return self::get_behat_profile($profile, $oldconfigvalues);
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}
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// If nothing set above then return empty array.
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return array();
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}
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/**
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* Parse $CFG->behat_profile and return the array with required config structure for behat.yml.
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*
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* $CFG->behat_profiles = array(
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* 'profile' = array(
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* 'browser' => 'firefox',
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* 'tags' => '@javascript',
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* 'wd_host' => 'http://127.0.0.1:4444/wd/hub',
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* 'capabilities' => array(
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|
* 'platform' => 'Linux',
|
|
* 'version' => 44
|
|
* )
|
|
* )
|
|
* );
|
|
*
|
|
* @param string $profile profile name
|
|
* @param array $values values for profile.
|
|
* @return array
|
|
*/
|
|
protected static function get_behat_profile($profile, $values) {
|
|
// Values should be an array.
|
|
if (!is_array($values)) {
|
|
return array();
|
|
}
|
|
|
|
// Check suite values.
|
|
$behatprofilesuites = array();
|
|
// Fill tags information.
|
|
if (isset($values['tags'])) {
|
|
$behatprofilesuites = array(
|
|
'suites' => array(
|
|
'default' => array(
|
|
'filters' => array(
|
|
'tags' => $values['tags'],
|
|
)
|
|
)
|
|
)
|
|
);
|
|
}
|
|
|
|
// Selenium2 config values.
|
|
$behatprofileextension = array();
|
|
$seleniumconfig = array();
|
|
if (isset($values['browser'])) {
|
|
$seleniumconfig['browser'] = $values['browser'];
|
|
}
|
|
if (isset($values['wd_host'])) {
|
|
$seleniumconfig['wd_host'] = $values['wd_host'];
|
|
}
|
|
if (isset($values['capabilities'])) {
|
|
$seleniumconfig['capabilities'] = $values['capabilities'];
|
|
}
|
|
if (!empty($seleniumconfig)) {
|
|
$behatprofileextension = array(
|
|
'extensions' => array(
|
|
'Behat\MinkExtension' => array(
|
|
'selenium2' => $seleniumconfig,
|
|
)
|
|
)
|
|
);
|
|
}
|
|
|
|
return array($profile => array_merge($behatprofilesuites, $behatprofileextension));
|
|
}
|
|
|
|
/**
|
|
* Attempt to split feature list into fairish buckets using timing information, if available.
|
|
* Simply add each one to lightest buckets until all files allocated.
|
|
* PGA = Profile Guided Allocation. I made it up just now.
|
|
* CAUTION: workers must agree on allocation, do not be random anywhere!
|
|
*
|
|
* @param array $features Behat feature files array
|
|
* @param int $nbuckets Number of buckets to divide into
|
|
* @param int $instance Index number of this instance
|
|
* @return array Feature files array, sorted into allocations
|
|
*/
|
|
protected static function profile_guided_allocate($features, $nbuckets, $instance) {
|
|
|
|
$behattimingfile = defined('BEHAT_FEATURE_TIMING_FILE') &&
|
|
@filesize(BEHAT_FEATURE_TIMING_FILE) ? BEHAT_FEATURE_TIMING_FILE : false;
|
|
|
|
if (!$behattimingfile || !$behattimingdata = @json_decode(file_get_contents($behattimingfile), true)) {
|
|
// No data available, fall back to relying on steps data.
|
|
$stepfile = "";
|
|
if (defined('BEHAT_FEATURE_STEP_FILE') && BEHAT_FEATURE_STEP_FILE) {
|
|
$stepfile = BEHAT_FEATURE_STEP_FILE;
|
|
}
|
|
// We should never get this. But in case we can't do this then fall back on simple splitting.
|
|
if (empty($stepfile) || !$behattimingdata = @json_decode(file_get_contents($stepfile), true)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
arsort($behattimingdata); // Ensure most expensive is first.
|
|
|
|
$realroot = realpath(__DIR__.'/../../../').'/';
|
|
$defaultweight = array_sum($behattimingdata) / count($behattimingdata);
|
|
$weights = array_fill(0, $nbuckets, 0);
|
|
$buckets = array_fill(0, $nbuckets, array());
|
|
$totalweight = 0;
|
|
|
|
// Re-key the features list to match timing data.
|
|
foreach ($features as $k => $file) {
|
|
$key = str_replace($realroot, '', $file);
|
|
$features[$key] = $file;
|
|
unset($features[$k]);
|
|
if (!isset($behattimingdata[$key])) {
|
|
$behattimingdata[$key] = $defaultweight;
|
|
}
|
|
}
|
|
|
|
// Sort features by known weights; largest ones should be allocated first.
|
|
$behattimingorder = array();
|
|
foreach ($features as $key => $file) {
|
|
$behattimingorder[$key] = $behattimingdata[$key];
|
|
}
|
|
arsort($behattimingorder);
|
|
|
|
// Finally, add each feature one by one to the lightest bucket.
|
|
foreach ($behattimingorder as $key => $weight) {
|
|
$file = $features[$key];
|
|
$lightbucket = array_search(min($weights), $weights);
|
|
$weights[$lightbucket] += $weight;
|
|
$buckets[$lightbucket][] = $file;
|
|
$totalweight += $weight;
|
|
}
|
|
|
|
if ($totalweight && !defined('BEHAT_DISABLE_HISTOGRAM') && $instance == $nbuckets) {
|
|
echo "Bucket weightings:\n";
|
|
foreach ($weights as $k => $weight) {
|
|
echo $k + 1 . ": " . str_repeat('*', 70 * $nbuckets * $weight / $totalweight) . PHP_EOL;
|
|
}
|
|
}
|
|
|
|
// Return the features for this worker.
|
|
return $buckets[$instance - 1];
|
|
}
|
|
|
|
/**
|
|
* 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';
|
|
}
|
|
|
|
}
|