✅ setting up travis testing

Author: carbontwelve

.travis.yml

@@ -0,0 +1,30 @@
+language: php
+
+sudo: false
+
+matrix:
+  include:
+    - php: 5.6
+    - php: 7.0
+    - php: 7.1
+    - php: nightly
+    - php: hhvm
+  allow_failures:
+    - php: nightly
+    - php: hhvm
+  fast_finish: true
+
+cache:
+  directories:
+    - $HOME/.composer/cache
+
+before_install:
+  - source .travis/travis.sh
+  - xdebug-disable
+  - travis_retry composer self-update
+
+install:
+  - travis_retry composer install --no-interaction --prefer-dist --no-suggest;
+
+script:
+  - run-tests

.travis/travis.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+# The problem is that we do not want to remove the configuration file, just disable it for a few tasks, then enable it
+#
+# For reference, see
+#
+# - https://docs.travis-ci.com/user/languages/php#Disabling-preinstalled-PHP-extensions
+# - https://docs.travis-ci.com/user/languages/php#Custom-PHP-configuration
+#
+# Original Source (this was copied from):
+# - https://github.com/codeclimate/php-test-reporter/blob/master/.travis/travis.sh
+
+config="/home/travis/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini"
+
+function xdebug-disable() {
+    if [[ -f $config ]]; then
+        mv $config "$config.bak"
+    fi
+}
+
+function xdebug-enable() {
+    if [[ -f "$config.bak" ]]; then
+        mv "$config.bak" $config
+    fi
+}
+
+function run-tests() {
+    if [[ "$WITH_COVERAGE" == "true" ]]; then
+        xdebug-enable
+        vendor/bin/phpunit --coverage-clover=$TRAVIS_BUILD_DIR/build/logs/clover.xml
+        xdebug-disable
+    else
+       vendor/bin/phpunit
+    fi
+}