Added a PSR-4 namespaced tests/php folder for tests written against new code in the src directory

composer.json

@@ -43,6 +43,11 @@
       "Automattic\\WooCommerce\\": "src/"
     }
   },
+  "autoload-dev": {
+    "psr-4": {
+      "Automattic\\WooCommerce\\Tests\\": "tests/php/"
+    }
+  },
   "scripts": {
     "post-install-cmd": [
       "sh ./bin/package-update.sh"

phpunit.xml

@@ -11,6 +11,7 @@
 	<testsuites>
 		<testsuite name="WooCommerce Test Suite">
 			<directory suffix=".php">./tests/legacy/unit-tests</directory>
+			<directory suffix=".php">./tests/php</directory>
 		</testsuite>
 	</testsuites>
 	<filter>

tests/php/.gitkeep

@@ -0,0 +1 @@
+# Placeholder to include the folder. Remove once tests have been written!