diff --git a/tests/phpunit/tests/Checker/Check_Categories_Tests.php b/tests/phpunit/tests/Checker/Check_Categories_Tests.php
index f4d96f316..017c28667 100644
--- a/tests/phpunit/tests/Checker/Check_Categories_Tests.php
+++ b/tests/phpunit/tests/Checker/Check_Categories_Tests.php
@@ -16,6 +16,10 @@
 use WordPress\Plugin_Check\Test_Data\Category_Check_Two;
 
 class Check_Categories_Tests extends WP_UnitTestCase {
+	/**
+	 * @var Default_Check_Repository
+	 */
+	protected $repository;
 
 	public function set_up() {
 		parent::set_up();
diff --git a/tests/phpunit/tests/Checker/Check_Context_Tests.php b/tests/phpunit/tests/Checker/Check_Context_Tests.php
index a5c893bdc..ad6046d5b 100644
--- a/tests/phpunit/tests/Checker/Check_Context_Tests.php
+++ b/tests/phpunit/tests/Checker/Check_Context_Tests.php
@@ -8,6 +8,16 @@
 use WordPress\Plugin_Check\Checker\Check_Context;
 
 class Check_Context_Tests extends WP_UnitTestCase {
+	/**
+	 * @var string
+	 */
+	protected $plugin_name;
+
+	/**
+	 * @var Check_Context
+	 */
+	protected $check_context;
+
 	public function set_up() {
 		parent::set_up();
 
diff --git a/tests/phpunit/tests/Plugin_Context_Tests.php b/tests/phpunit/tests/Plugin_Context_Tests.php
index 0b03c98b5..688124481 100644
--- a/tests/phpunit/tests/Plugin_Context_Tests.php
+++ b/tests/phpunit/tests/Plugin_Context_Tests.php
@@ -8,6 +8,16 @@
 use WordPress\Plugin_Check\Plugin_Context;
 
 class Plugin_Context_Tests extends WP_UnitTestCase {
+	/**
+	 * @var string
+	 */
+	protected $plugin_name;
+
+	/**
+	 * @var Plugin_Context
+	 */
+	protected $plugin_context;
+
 	public function set_up() {
 		parent::set_up();