diff --git a/plugins/bc-custom-content/src/Model/Entity/CustomField.php b/plugins/bc-custom-content/src/Model/Entity/CustomField.php
index 5a39223ead..379bfd5382 100644
--- a/plugins/bc-custom-content/src/Model/Entity/CustomField.php
+++ b/plugins/bc-custom-content/src/Model/Entity/CustomField.php
@@ -47,6 +47,7 @@ class CustomField extends Entity
      * @return string
      * @checked
      * @noTodo
+     * @unitTest
      */
     public function getTypeTitle(): string
     {
diff --git a/plugins/bc-custom-content/tests/TestCase/Model/Entity/CustomFieldTest.php b/plugins/bc-custom-content/tests/TestCase/Model/Entity/CustomFieldTest.php
new file mode 100644
index 0000000000..38f6211a37
--- /dev/null
+++ b/plugins/bc-custom-content/tests/TestCase/Model/Entity/CustomFieldTest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace BcCustomContent\Test\TestCase\Model\Entity;
+
+use BaserCore\TestSuite\BcTestCase;
+use BcCustomContent\Model\Entity\CustomField;
+
+class CustomFieldTest extends BcTestCase
+{
+    public $CustomField;
+
+    public function setUp(): void
+    {
+        parent::setUp();
+        $this->CustomField = $this->getTableLocator()->get('BcCustomContent.CustomFields');
+    }
+
+    public function tearDown(): void
+    {
+        unset($this->CustomField);
+        parent::tearDown();
+    }
+
+    /**
+     * test getTypeTitle
+     */
+    public function test_getTypeTitle()
+    {
+        // type group
+        $customField = new CustomField([
+            'id' => 1,
+            'custom_table_id' => 1,
+            'type' => 'group',
+        ]);
+        $this->assertEquals('グループ', $customField->getTypeTitle());
+        // type text
+        $customField = new CustomField([
+            'id' => 1,
+            'custom_table_id' => 1,
+            'type' => 'text',
+        ]);
+        $this->assertEmpty($customField->getTypeTitle());
+    }
+
+}
\ No newline at end of file