new travis file for Backdrop testing template

.travis.yml

language: php
# We want to avoid sudo. This allow us to use Travis docker infrastructure, which means builds start faster and have more CPU available.
sudo: false

git:
  depth: 1

php:
  - '7.1'

branches:
  only:
   - 1.x-1.x

addons:
  # The username and access key are stored in the Travis settings.
  sauce_connect: true

services:
 - mysql

# Cache Composer and db export.
# I removed caching of Drush since you have to clear Drush cache to get new Drupal versions.
cache:
  directories:
    - $HOME/.composer/cache/files
    - $HOME/cache

install:

  # Export variables used later on in the bash scripts.
  - cd $TRAVIS_BUILD_DIR && cd ../ && export ROOT_DIR=$(pwd)
  - export HOME
  - export TRAVIS_EVENT_TYPE

  # Name of bundle used as a placeholder in scripts.
  - export MODULE_NAME="highlightjs_wysiwyg"
  - export ADD_CUSTOM_MODULES="backdrop_test_users"
  - export ADD_CONTRIB_MODULES="shortcode google_cse"

  # Behat tags. Allows you to include/exclude tags per bundle as needed.
  - export HEADLESS_BEHAT_TAGS="~@broken&&~@javascript"
  - export JS_BEHAT_TAGS="~@broken&&@javascript"

  # SimpleTest group.
  - export SIMPLETEST_CLASSES="HighlightJSTests"

  # Copy scripts to root.
  - cd ${ROOT_DIR}
  - cp -R ${ROOT_DIR}/${MODULE_NAME}/tests/travis-ci/* ${ROOT_DIR}

  # Pulls in any helper functions used later in scripts.
  - source $ROOT_DIR/helper-functions.sh

  # Install and build dependencies.
  - echo "Running install script..."
  - $ROOT_DIR/build-code.sh

before_script:

  # Setup config for PHP/MySQL, settings.php, and install database.
  - echo "Running setup script..."
  - $ROOT_DIR/setup-config.sh

  # Perform the site install after removing Xdebug since it seems faster.
  - echo "Running build script..."
  - $ROOT_DIR/install-backdrop.sh

script:

  # Run Behat tests.
  - echo "Running Behat tests..."
  - $ROOT_DIR/run-behat-tests.sh

  # Run SimpleTests.
  - echo "Running SimpleTest tests..."
  - $ROOT_DIR/run-simpletests.sh