Regionのシステムテストを改善

test/system/user/regions_test.rb

@@ -1,14 +1,33 @@
 # frozen_string_literal: true
 
 require 'application_system_test_case'
+require 'uri'
 
 class User::RegionsTest < ApplicationSystemTestCase
-  test 'show users devided by regions' do
-    visit_with_auth '/users/areas', 'komagata'
+  test 'show tokyo users without search params' do
+    visit_with_auth '/users/regions', 'komagata'
     assert_equal '都道府県別ユーザー一覧 | FBC', title
     within "[data-testid='regions']" do
       assert_text '関東地方'
+      assert_text '東京都'
       assert_selector "[data-login-name='kimura']"
     end
   end
+
+  test 'show selected subdivision or country users by search params' do
+    query = URI.encode_www_form(region: '九州・沖縄地方', subdivision_or_country: '長崎県')
+    visit_with_auth "/users/regions?#{query}", 'komagata'
+    within "[data-testid='regions']" do
+      assert_text '長崎県'
+      assert_selector "[data-login-name='advisernocolleguetrainee']"
+    end
+  end
+
+  test 'show empty message when no users exist' do
+    query = URI.encode_www_form(region: '関東地方', subdivision_or_country: '神奈川県')
+    visit_with_auth "/users/regions?#{query}", 'komagata'
+    within "[data-testid='regions']" do
+      assert_text '都道府県別ユーザー一覧はありません'
+    end
+  end
 end