Fix tests setup to work on old PHP versions and be more performant.

Author: Felix Arntz

.travis.yml

@@ -1,42 +1,89 @@
+sudo: false
 language: php
-dist: precise
-
+cache:
+  directories:
+    - node_modules
+    - vendor
+    - php52/vendor
+    - $HOME/.composer/cache
 php:
-  - 5.2
-  - 5.3
+  - 5.4
   - 5.5
   - 5.6
   - 7.0
   - 7.1
-
 env:
-  - WP_VERSION=latest WP_MULTISITE=0
-  - WP_VERSION=4.5 WP_MULTISITE=0
-
+  - WP_VERSION=latest
+  - WP_VERSION=4.5
+dist: trusty
 matrix:
   include:
+    - php: 5.2
+      env: WP_VERSION=latest
+      dist: precise
+    - php: 5.2
+      env: WP_VERSION=4.5
+      dist: precise
+    - php: 5.3
+      env: WP_VERSION=latest
+      dist: precise
+    - php: 5.3
+      env: WP_VERSION=4.5
+      dist: precise
     - php: 5.6
       env: WP_VERSION=latest WP_MULTISITE=1
+    - php: 5.6
+      env: WP_VERSION=4.5 WP_MULTISITE=1
   allow_failures:
     - php: 5.2
 
 before_script:
-  - rm -rf ~/.nvm && git clone https://github.com/creationix/nvm.git ~/.nvm && (cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`) && source ~/.nvm/nvm.sh && nvm install 8
-  - composer install
+  - |
+    stable='^[0-9\.]+$'
+    if [[ "$TRAVIS_PHP_VERSION" =~ $stable ]]; then
+      if [ -f ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini ]; then
+        phpenv config-rm xdebug.ini
+      fi
+    fi
+  - PLUGIN_SLUG=$(basename $(pwd))
+  - export WP_DEVELOP_DIR=/tmp/wordpress/
+  - git clone --depth=50 --branch="$WP_VERSION" git://develop.git.wordpress.org/ /tmp/wordpress
+  - cd ..
+  - cp -r "$PLUGIN_SLUG" "/tmp/wordpress/src/wp-content/plugins/$PLUGIN_SLUG"
+  - cd /tmp/wordpress/
+  - cp wp-tests-config-sample.php wp-tests-config.php
+  - sed -i "s/youremptytestdbnamehere/wordpress_tests/" wp-tests-config.php
+  - sed -i "s/yourusernamehere/travis/" wp-tests-config.php
+  - sed -i "s/yourpasswordhere//" wp-tests-config.php
+  - mysql -e "CREATE DATABASE wordpress_tests;" -uroot
+  - cd "/tmp/wordpress/src/wp-content/plugins/$PLUGIN_SLUG"
+  - phpenv rehash
+  - |
+    case "$TRAVIS_PHP_VERSION" in
+      5.6|5.5|5.4|5.3)
+        composer global require "phpunit/phpunit:^4"
+        composer install
+        ;;
+      5.2)
+        ;;
+      *)
+        composer global require "phpunit/phpunit:^6"
+        composer install
+        ;;
+    esac
   - cd php52
   - composer install
   - cd ..
-  - npm install
-  - bash tests/bin/install-wp-tests.sh wordpress_test root '' localhost $WP_VERSION
-  - export PATH="$HOME/.composer/vendor/bin:$PATH"
   - |
-    if [[ ${TRAVIS_PHP_VERSION:0:2} == "7." ]]; then
-      composer global require "phpunit/phpunit=5.7.*"
-    else
-      composer global require "phpunit/phpunit=4.8.*"
-    fi
-
-
+    rm -rf ~/.nvm
+    git clone https://github.com/creationix/nvm.git ~/.nvm
+    cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`
+    source ~/.nvm/nvm.sh
+    nvm install 8
+  - npm install
 script:
   - phpunit
-  - npm test
+  - |
+    if [[ "$TRAVIS_PHP_VERSION" != "5.2" ]]; then
+      npm test
+    fi

tests/bin/install-wp-tests.sh

@@ -1,12 +1,24 @@
 <?php
-$_tests_dir = getenv('WP_TESTS_DIR');
-if ( !$_tests_dir ) $_tests_dir = '/tmp/wordpress-tests-lib';
-require_once $_tests_dir . '/includes/functions.php';
-// Include our plugin.
-function _manually_load_plugin() {
-	require dirname( __FILE__ ) . '/../../wpengine-phpcompat.php';
+
+// Disable xdebug backtrace.
+if ( function_exists( 'xdebug_disable' ) ) {
+	xdebug_disable();
+}
+
+if ( false !== getenv( 'WP_PLUGIN_DIR' ) ) {
+	define( 'WP_PLUGIN_DIR', getenv( 'WP_PLUGIN_DIR' ) );
+}
+
+$GLOBALS['wp_tests_options'] = array(
+	'active_plugins' => array( basename( dirname( dirname( dirname( __FILE__ ) ) ) ) . '/wpengine-phpcompat.php' ),
+);
+
+if ( false !== getenv( 'WP_DEVELOP_DIR' ) ) {
+	$test_root = getenv( 'WP_DEVELOP_DIR' ) . '/tests/phpunit';
+} elseif ( file_exists( '/tmp/wordpress-tests-lib/includes/bootstrap.php' ) ) {
+	$test_root = '/tmp/wordpress-tests-lib';
+} else {
+	$test_root = '../../../../../../../tests/phpunit';
 }
-tests_add_filter( 'muplugins_loaded', '_manually_load_plugin' );
 
-// Bootstrap WordPress.
-require $_tests_dir . '/includes/bootstrap.php';
+require $test_root . '/includes/bootstrap.php';