Travis xenial update

.travis.yml

@@ -1,29 +1,36 @@
 language: php
-dist: trusty
+
+dist: xenial
+
+services:
+  - mysql
+  - postgresql
+
+cache:
+  directories:
+    - $HOME/.composer/cache/files
 
 matrix:
   include:
     - php: 5.6
-      env: DB=MYSQL INSTALLER_VERSION=4.2.x-dev PHPCS_TEST=1 PHPUNIT_TEST=1
-    - php: 7.0
-      env: DB=PGSQL INSTALLER_VERSION=4.2.x-dev PHPUNIT_TEST=1
+      env: DB=MYSQL INSTALLER_VERSION=4.4.x-dev PHPCS_TEST=1 PHPUNIT_TEST=1
     - php: 7.1
-      env: DB=MYSQL INSTALLER_VERSION=4.3.x-dev PHPUNIT_COVERAGE_TEST=1
+      env: DB=MYSQL INSTALLER_VERSION=4.5.x-dev PHPUNIT_COVERAGE_TEST=1 PDO=1
     - php: 7.2
-      env: DB=MYSQL INSTALLER_VERSION=4.3.x-dev PHPUNIT_TEST=1
-    - php: 7.3
-      env: DB=MYSQL INSTALLER_VERSION=4.4.x-dev PHPUNIT_TEST=1 NPM_TEST=1
-    - php: 7.3
-      env: DB=MYSQL INSTALLER_VERSION=4.5.x-dev PHPUNIT_TEST=1
+      env: DB=PGSQL INSTALLER_VERSION=4.6.x-dev PHPUNIT_TEST=1
     - php: 7.3
+      env: DB=MYSQL INSTALLER_VERSION=4.6.x-dev PHPUNIT_TEST=1 NPM_TEST=1
+    - php: 7.4
       env: DB=MYSQL INSTALLER_VERSION=4.x-dev PHPUNIT_TEST=1
 
 before_script:
   - phpenv rehash
   - phpenv config-rm xdebug.ini
   - composer validate
-  - composer require silverstripe/installer:"$INSTALLER_VERSION" ezyang/htmlpurifier:* --no-update
-  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:2.2.x-dev; fi
+  - composer require silverstripe/installer:$INSTALLER_VERSION ezyang/htmlpurifier:* --no-update
+  # Fix for running phpunit 5 on php 7.4+
+  - composer require --no-update sminnee/phpunit-mock-objects:^3
+  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:^2; fi
   - composer install --prefer-dist --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
   - if [[ $NPM_TEST ]]; then nvm install $TRAVIS_NODE_VERSION && nvm use $TRAVIS_NODE_VERSION && npm install -g yarn && yarn install --network-concurrency 1 && yarn run build; fi