Merge pull request #6 from wp-graphql/feature/flush-loader-cache

"clearLoaderCache" implemented.

composer.json

@@ -19,7 +19,8 @@
     },
     "require": {
         "php": ">=7.1",
-        "phpunit/phpunit": "^7.5"
+        "phpunit/phpunit": "^7.5",
+        "wp-phpunit/wp-phpunit": "^5.7"
     },
     "require-dev": {
         "composer/installers": "^1.9",

docker-compose.yml

@@ -4,6 +4,7 @@ services:
 
   mysql:
     image: mysql
+    platform: linux/amd64
     command: --default-authentication-plugin=mysql_native_password
     environment:
       MYSQL_ROOT_PASSWORD: password
@@ -33,6 +34,7 @@ services:
 
   mysql_phpunit:
     image: mysql:5.7
+    platform: linux/amd64
     restart: always
     environment:
       MYSQL_ALLOW_EMPTY_PASSWORD: "yes"

src/TestCase/WPGraphQLTestCommon.php

@@ -39,11 +39,25 @@ public function graphql() {
 	 *
 	 * @return array
 	 */
-	public function clear_schema() {
+	public function clearSchema() {
 		// Clear schema
 		\WPGraphQL::clear_schema();
 	}
 
+	/**
+	 * A simple helper for clearing a loaders cache. The is good for when
+	 * running a query multiple times and wish to ensure that the value returned
+	 * isn't a cached value. 
+	 *
+	 * @param string $loader_name  Loader slug name.
+	 *
+	 * @return void
+	 */
+	public function clearLoaderCache( $loader_name ) {
+		$loader = \WPGraphQL::get_app_context()->getLoader( $loader_name );
+		$loader->clearAll();
+	}
+
 	/**
 	 * Wrapper for the "GraphQLRelay\Relay::toGlobalId()" function.
 	 *