Update Travis configuration to get linting and unit tests running again (woocommerce#57)

* Declare the need for MySQL when running the Travis build

* Stop running tests on PHP 5.6

* Use the version of PHPUnit installed locally by Composer

* Use $TMPDIR instead of hardcoding to /tmp

* Remove reference to plugin folder name in unit test bootstrap

* Clone WooCommerce instead of downloading a release

* Require the WooCommerce test bootstrap file from its new location

* Only do branch builds on main

Author: jrodger

.travis.yml

@@ -4,16 +4,23 @@ sudo: false
 
 # Test main supported versions of PHP and HHVM against latest WP. 5.2 is min supported version.
 php:
-  - 5.6
   - 7.0
   - 7.1
 
+services:
+  - mysql
+
 env:
   - WP_VERSION=latest WP_MULTISITE=0
 
 before_script:
   - export PATH="$HOME/.composer/vendor/bin:$PATH"
   - phpenv config-rm xdebug.ini
+  - composer install
   - bash tests/bin/install-phpunit-tests-dependencies.sh wc_apa_test root '' localhost $WP_VERSION
 
-script: phpunit -c phpunit.xml
+script: ./vendor/bin/phpunit -c phpunit.xml
+
+branches:
+  only:
+    - main

tests/bin/install-phpunit-tests-dependencies.sh

@@ -12,8 +12,10 @@ DB_PASS=$3
 DB_HOST=${4-localhost}
 WP_VERSION=${5-latest}
 
-WP_TESTS_DIR=${WP_TESTS_DIR-/tmp/wordpress-tests-lib}
-WP_CORE_DIR=${WP_CORE_DIR-/tmp/wordpress/}
+TMPDIR=${TMPDIR-/tmp}
+TMPDIR=$(echo $TMPDIR | sed -e "s/\/$//")
+WP_TESTS_DIR=${WP_TESTS_DIR-$TMPDIR/wordpress-tests-lib}
+WP_CORE_DIR=${WP_CORE_DIR-$TMPDIR/wordpress/}
 
 download() {
 	if [ `which curl` ]; then
@@ -60,12 +62,13 @@ install_wp() {
 }
 
 install_woocommerce() {
-    cd $TRAVIS_BUILD_DIR
-    cd ..
-    download https://codeload.github.com/woocommerce/woocommerce/tar.gz/3.2.5 woocommerce.tar.gz
-    mkdir woocommerce
-    tar --strip-components=1 -zxmf woocommerce.tar.gz -C woocommerce
-    cd -
+	cd $TRAVIS_BUILD_DIR
+	cd ..
+
+	git clone --depth=1 --branch 4.3.1 https://github.com/woocommerce/woocommerce.git
+	cd woocommerce
+	composer install
+	cd -
 }
 
 install_test_suite() {

tests/phpunit/bootstrap.php

@@ -1,15 +1,15 @@
 <?php
 $_tests_dir = getenv( 'WP_TESTS_DIR' );
 if ( ! $_tests_dir ) {
-	$_tests_dir = '/tmp/wordpress-tests-lib';
+	$_tests_dir = sys_get_temp_dir() . '/wordpress-tests-lib';
 }
 
 require_once $_tests_dir . '/includes/functions.php';
 
 function _manually_load_plugin() {
-	$plugins_dir = dirname( dirname( dirname( dirname( __FILE__ ) ) ) );
-	require $plugins_dir . '/woocommerce-gateway-amazon-payments-advanced/woocommerce-gateway-amazon-payments-advanced.php';
-	require $plugins_dir . '/woocommerce/woocommerce.php';
+	$base_dir = dirname( dirname( dirname( __FILE__ ) ) );
+	require $base_dir . '/woocommerce-gateway-amazon-payments-advanced.php';
+	require $base_dir . '/../woocommerce/woocommerce.php';
 }
 tests_add_filter( 'muplugins_loaded', '_manually_load_plugin' );
 
@@ -43,4 +43,4 @@ function _manually_load_plugin() {
 
 // Require the WooCommerce tests bootstrap so that we can use WooCommerce's testing resources as well.
 $plugins_dir = dirname( dirname( dirname( dirname( __FILE__ ) ) ) );
-require_once $plugins_dir . '/woocommerce/tests/bootstrap.php';
+require_once $plugins_dir . '/woocommerce/tests/legacy/bootstrap.php';