TestSessionDatabaseState for shared state between processes

_config/_config.yml

@@ -5,4 +5,7 @@ Injector:
   RequestProcessor:
     properties:
       filters:
-        - '%$TestSessionRequestFilter'
+        - '%$TestSessionRequestFilter'
+Member:
+  extensions:
+    - TestSessionMemberExtension

code/TestSessionDatabaseState.php

@@ -0,0 +1,18 @@
+<?php
+/**
+ * Used to share arbitrary state between the browser session
+ * and other processes such as Behat CLI execution.
+ * Assumes that the temporary database is reset automatically
+ * on ending the test session.
+ */
+class TestSessionDatabaseState extends DataObject {
+	
+	private static $db = array(
+		'Key' => 'Varchar(255)',
+		'Value' => 'Text',
+	);
+
+	private static $indexes = array(
+		'Key' => true
+	);
+}

code/TestSessionMemberExtension.php

@@ -0,0 +1,29 @@
+<?php
+/**
+ * Stores the currently logged in user in the database in addition to 
+ * PHP session. This means the information can be shared with other processes
+ * such as a Behat CLI execution, without requiring this information to be available
+ * through the UI (and potentially cause another page load via Selenium).
+ */
+class TestSessionMemberExtension extends DataExtension {
+
+	public function memberLoggedIn() {
+		if(!SapphireTest::using_temp_db()) return;
+
+		$state = TestSessionDatabaseState::get()->find('Key', 'CurrentMemberID');
+		if(!$state) {
+			$state = new TestSessionDatabaseState(array(
+				'Key' => 'CurrentMemberID'
+			));
+		}
+		$state->Value = $this->owner->ID;
+		$state->write();
+	}
+
+	public function memberLoggedOut() {
+		if(!SapphireTest::using_temp_db()) return;
+
+		$state = TestSessionDatabaseState::get()->filter('Key', 'CurrentMemberID')->removeAll();
+	}
+
+}