Test mass actions in admin

test/fixtures/files/invalid_mass_force_delete_list.csv

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+domain_name, delete_reason
+sh\á;[]c'

test/fixtures/files/valid_mass_force_delete_list.csv

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+domain_name, delete_reason
+shop.test,ENTITY_BURIED

test/system/admin_area/mass_actions/mass_force_delete_test.rb

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+require 'application_system_test_case'
+require 'test_helper'
+
+class AdminAreaMassActionsForceDeleteTest < ApplicationSystemTestCase
+  def setup
+    sign_in users(:admin)
+  end
+
+  def test_processes_uploaded_valid_csv
+    visit admin_mass_actions_path
+
+    attach_file('entry_list', Rails.root.join('test', 'fixtures', 'files', 'valid_mass_force_delete_list.csv').to_s)
+    click_link_or_button 'Start force delete process'
+    assert_text 'force_delete completed for ["shop.test"]. Failed: objects: []'
+  end
+
+  def test_processes_uploaded_invalid_csv
+    visit admin_mass_actions_path
+    attach_file(:entry_list, Rails.root.join('test', 'fixtures', 'files', 'invalid_mass_force_delete_list.csv').to_s)
+    click_link_or_button 'Start force delete process'
+    assert_text 'Dataset integrity validation failed for force_delete'
+  end
+end