Add test environment for PHP 5.6 and PHP 7.0

composer.json

@@ -64,14 +64,14 @@
     },
     "scripts": {
         "test:php": "composer test:unit && composer wp:tests",
-        "dev:install": "composer install && npm install && composer wp:install && composer wp:activate && composer test:setup",
+        "dev:install": "composer install && yarn install && composer wp:install && composer wp:activate && composer test:setup",
         "dev:destroy": "composer nuke && composer wp:destroy",
-        "nuke": "rm package-lock.json && rm composer.lock && rm -rf node_modules/ && rm -rf vendor",
+        "nuke": "rm yarn.lock && rm composer.lock && rm -rf node_modules/ && rm -rf vendor",
         "wp:install": "bash ./bin/install-docker.sh && composer wp:config",
         "wp:activate": "bash ./bin/activate-plugin.sh",
         "test:setup": "bash ./bin/setup-test-forms.sh",
         "test:delete": "bash ./bin/delete-test-forms.sh",
-        "wp:config": "docker-compose run --rm cli wp rewrite structure '/%postname%/'",
+        "wp:config": "docker-compose run --rm cli wp rewrite structure %postname%",
         "wp:start": "composer wp:server-start && composer wp:server-url",
         "wp:server-start": "docker-compose up -d",
         "wp:server-url": "bash ./bin/echo-server-url.sh",

contributing/local-dev.md

@@ -7,7 +7,7 @@ The local server is [http://localhost:8228](http://localhost:8228)
 
 
 ## Requirements
-* [Docker](https://docs.docker.com/)
+* Docker
     - [Installation documentation](https://docs.docker.com/install/)
 * [Composer](https://getcomposer.org/)
     - [Installation documentation](https://getcomposer.org/doc/00-intro.md#installation-linux-unix-osx)
@@ -25,6 +25,16 @@ The local server is [http://localhost:8228](http://localhost:8228)
     - password: password
 * [See Commands](https://github.com/CalderaWP/Caldera-Forms/tree/develop#composer)
 
+
+## Testing Older Versions of PHP
+
+The primary WordPress site uses the latest version of PHP.
+
+There are also sites for testing older versions of PHP:
+
+* PHP 5.6 [http://localhost:8256](http://localhost:8256)
+* PHP 7.0 [http://localhost:8270](http://localhost:8270)
+
 ## JavaScript Development
 * Install
     - `yarn`
@@ -34,3 +44,4 @@ The local server is [http://localhost:8228](http://localhost:8228)
     - `yarn start:blocks`
 * Build all JavaScript and CSS
     - `yarn build`
+

docker-compose.yml

@@ -2,6 +2,7 @@ version: '3.1'
 
 services:
 
+  # WordPress site running latest PHP
   wordpress:
     image: wordpress
     ports:
@@ -13,24 +14,70 @@ services:
     volumes:
       - wordpress:/var/www/html
       - ./wp-content/plugins:/var/www/html/wp-content/plugins
-      - .:/var/www/html/wp-content/plugins/caldera-forms
-      - ./wp-content/mu-plugins:/var/www/html/wp-content/mu-plugins
 
-  cli:
-    image: wordpress:cli
+  # WordPress site running PHP 5.6
+  wordpress_5:
+    image: wordpress:php5.6
+    ports:
+      - 8256:80
+    environment:
+      WORDPRESS_DB_HOST: mysql_5
+      WORDPRESS_DB_PASSWORD: example
+      WORDPRESS_DEBUG: 1
+      ABSPATH: /usr/src/wordpress/
     volumes:
-    - wordpress:/var/www/html
-    - .:/var/www/html/wp-content/plugins/caldera-forms
-    - ./wp-content/plugins:/var/www/html/wp-content/plugins
+      - wordpress:/var/www/html
+      - .:/var/www/html/wp-content/plugins/caldera-forms
+      - ./wp-content/plugins:/var/www/html/wp-content/plugins
+
+  # WordPress site running PHP 7.0
+  wordpress_7:
+    image: wordpress:php7.0
+    ports:
+      - 8270:80
     environment:
+      WORDPRESS_DB_HOST: mysql_70
       WORDPRESS_DB_PASSWORD: example
+      WORDPRESS_DEBUG: 1
       ABSPATH: /usr/src/wordpress/
+    volumes:
+      - wordpress:/var/www/html
+      - .:/var/www/html/wp-content/plugins/caldera-forms
+      - ./wp-content/plugins:/var/www/html/wp-content/plugins
+
+  # Database for primary WordPress site
   mysql:
     image: mysql:5.7
     environment:
       MYSQL_ROOT_PASSWORD: example
       MYSQL_DATABASE: wordpress_test
 
+  # Database for WordPress site running PHP 5.6
+  mysql_5:
+    image: mysql:5.7
+    environment:
+      MYSQL_ROOT_PASSWORD: example
+      MYSQL_DATABASE: wordpress_test_5
+
+  # Database for WordPress site running PHP 7.0
+  mysql_70:
+    image: mysql:5.7
+    environment:
+      MYSQL_ROOT_PASSWORD: example
+      MYSQL_DATABASE: wordpress_test_70
+
+  # WP-CLI
+  cli:
+    image: wordpress:cli
+    volumes:
+      - wordpress:/var/www/html
+      - .:/var/www/html/wp-content/plugins/caldera-forms
+      - ./wp-content/plugins:/var/www/html/wp-content/plugins
+    environment:
+      WORDPRESS_DB_PASSWORD: example
+      ABSPATH: /usr/src/wordpress/
+
+  # For WordPress "unit" test runs
   wordpress_phpunit:
     image: chriszarate/wordpress-phpunit
     environment:
@@ -39,6 +86,7 @@ services:
       - .:/app
       - testsuite:/tmp
 
+  # Composer
   composer:
     image: composer
     volumes: