通知をしない場合のテストも追加

test/models/product_update_notifier_test.rb

@@ -33,4 +33,54 @@ class ProductUpdateNotifierTest < ActiveSupport::TestCase
     assert_equal product.checker_id, notification.user_id
     assert_equal "#{product.user.login_name}さんの提出物が更新されました", notification.message
   end
+
+  test 'does not notify when product is wip' do
+    product = Product.new(
+      body: 'test',
+      user: users(:hajime),
+      practice: practices(:practice1),
+      checker_id: users(:komagata).id,
+      wip: true
+    )
+    product.save!
+
+    assert_difference 'Notification.count', 0 do
+      perform_enqueued_jobs do
+        ProductUpdateNotifier.new.call({ product:, current_user: product.user })
+      end
+    end
+  end
+
+  test 'does not notify when checker_id is nil' do
+    product = Product.new(
+      body: 'test',
+      user: users(:hajime),
+      practice: practices(:practice1),
+      checker_id: users(:komagata).id,
+      wip: true
+    )
+    product.save!
+
+    assert_difference 'Notification.count', 0 do
+      perform_enqueued_jobs do
+        ProductUpdateNotifier.new.call({ product:, current_user: product.user })
+      end
+    end
+  end
+
+  test 'does not notify when current_user is admin or mentor' do
+    product = Product.new(
+      body: 'test',
+      user: users(:hajime),
+      practice: practices(:practice1),
+      checker_id: users(:komagata).id
+    )
+    product.save!
+
+    assert_difference 'Notification.count', 0 do
+      perform_enqueued_jobs do
+        ProductUpdateNotifier.new.call({ product:, current_user: users(:mentormentaro) })
+      end
+    end
+  end
 end