Add red #44 test

tests/DbQueryModuleTest.php

@@ -15,6 +15,7 @@
 use Ray\MediaQuery\Entity\TodoConstruct;
 use Ray\MediaQuery\Exception\InvalidPerPageVarNameException;
 use Ray\MediaQuery\Exception\PerPageNotIntTypeException;
+use Ray\MediaQuery\Fake\Queries\TodoEntityNullableInterface;
 use Ray\MediaQuery\Fake\Queries\TodoFactoryInterface;
 use Ray\MediaQuery\Fake\Queries\TodoFactoryUnionInterface;
 use Ray\MediaQuery\Queries\DynamicPerPageInterface;
@@ -53,6 +54,7 @@ protected function setUp(): void
             PromiseItemInterface::class,
             PromiseListInterface::class,
             TodoEntityInterface::class,
+            TodoEntityNullableInterface::class,
             TodoConstcuctEntityInterface::class,
             DynamicPerPageInterface::class,
             DynamicPerPageInvalidInterface::class,
@@ -145,6 +147,17 @@ public function testEntity(): void
         $this->assertInstanceOf(Todo::class, $item);
     }
 
+    public function testEntityNullable(): void
+    {
+        /** @var TodoEntityInterface $todoList */
+        $todoList = $this->injector->getInstance(TodoEntityNullableInterface::class);
+        $list = $todoList->getList();
+        $this->assertInstanceOf(Todo::class, $list[0]);
+        $this->assertSame('run', $list[0]->title);
+        $item = $todoList->getItem('1');
+        $this->assertInstanceOf(Todo::class, $item);
+    }
+
     public function testEntityWithConstructor(): void
     {
         /** @var TodoEntityInterface $todoList */

tests/Fake/Queries/TodoEntityNullableInterface.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Ray\MediaQuery\Fake\Queries;
+
+use Ray\MediaQuery\Annotation\DbQuery;
+use Ray\MediaQuery\Entity\Todo;
+
+interface TodoEntityNullableInterface
+{
+    #[DbQuery('todo_item')]
+    public function getItem(string $id): ?Todo;
+
+    #[DbQuery('todo_list')]
+    /**
+     * @return array<Todo>
+     */
+    public function getList(): ?array;
+}