test/nightwatch_tests/helpers/helpers.js

// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

var nano = require('nano');
var async = require('async');


function getRandomInt(min, max) {
  return Math.floor(Math.random() * (max - min)) + min;
}

const dbName = 'fauxton-selenium-tests-' + getRandomInt(1, 20000);

function createDatabase(nano, database) {
  return new Promise(function (resolve, reject) {
    nano.db.create(database, function (err) {

      //Tolerate database already existing
      if (err && err.status_code != 412)
        reject(err);
      else
        resolve();
    });
  });
}

module.exports = {
  asyncHookTimeout: 20000,
  maxWaitTime: 30000,
  testDatabaseName: dbName,

  getNanoInstance: function (dbURL) {
    console.log('DBURL:', dbURL);
    return nano(dbURL);
  },

  beforeEach: function (browser, done) {
    var nano = module.exports.getNanoInstance(browser.globals.test_settings.db_url),
      database = module.exports.testDatabaseName;

    console.log('nano setting up database', database);

    // clean up the database we created previously
    nano.db.destroy(database, function (err, body, header) {

      if (err && err.message !== 'Database does not exist.' && err.message !== 'missing') {
        console.log('Error in setting up ' + database, err.message);
      }
      // create a new database
      nano.db.create(database, function (err, body, header) {
          if (err) {
            console.log('Error in setting up ' + database, err.message);
          }
          const databaseToCreate = ["_users", "_replicator", "_global_changes"];
          const promises = databaseToCreate.map(db => createDatabase(nano, db));

          Promise.all(promises).then(function () {
            done();
          }).catch(function (err) {
            console.log("Unable to create required databases:" + JSON.stringify(err));
            done();
          });
        }
      );
    });
  },

  afterEach: function (browser, done) {
    var nano = module.exports.getNanoInstance(browser.globals.test_settings.db_url),
      database = module.exports.testDatabaseName;

    console.log('nano cleaning up', database);
    nano.db.destroy(database, function (err, header, body) {
      if (err) {
        console.log('Error in cleaning up ' + database, err.message);
      }
      done();
    });
  }
};