diff --git a/tests/phpunit/tests/rest-api/rest-block-renderer-controller.php b/tests/phpunit/tests/rest-api/rest-block-renderer-controller.php
index 3573ecb6e0bea..156955c9642d4 100644
--- a/tests/phpunit/tests/rest-api/rest-block-renderer-controller.php
+++ b/tests/phpunit/tests/rest-api/rest-block-renderer-controller.php
@@ -601,8 +601,8 @@ public function test_get_item_schema() {
 		$this->assertArrayHasKey( 'schema', $data );
 		$this->assertSame( 'rendered-block', $data['schema']['title'] );
 		$this->assertSame( 'object', $data['schema']['type'] );
-		$this->arrayHasKey( 'rendered', $data['schema']['properties'] );
-		$this->arrayHasKey( 'string', $data['schema']['properties']['rendered']['type'] );
+		$this->assertArrayHasKey( 'rendered', $data['schema']['properties'] );
+		$this->assertSame( 'string', $data['schema']['properties']['rendered']['type'] );
 		$this->assertSame( array( 'edit' ), $data['schema']['properties']['rendered']['context'] );
 	}