Adding test coverage to admin/mass_actions_controller

test/integration/admin_area/mass_actions_controller_test.rb

@@ -0,0 +1,101 @@
+require 'test_helper'
+
+class AdminMassActionsControllerTest < ActionDispatch::IntegrationTest
+  include Devise::Test::IntegrationHelpers
+  include ActionDispatch::TestProcess
+
+  setup do
+    @admin = users(:admin)
+    sign_in @admin
+
+    @valid_csv_path   = Rails.root.join('test/fixtures/files/mass_actions/valid_mass_force_delete_list.csv')
+    @invalid_csv_path = Rails.root.join('test/fixtures/files/mass_actions/invalid_mass_force_delete_list.csv')
+  end
+
+  def post_mass_action(action: 'force_delete', file: @valid_csv_path, stub_result: nil)
+    MassAction.stub(:process, stub_result) do
+      post admin_mass_actions_path, params: {
+        mass_action: action,
+        entry_list: file && fixture_file_upload(file, 'text/csv')
+      }
+    end
+  end
+
+  def assert_flash_notice_includes(*expected_strings)
+    expected_strings.each do |string|
+      assert_includes flash[:notice], string
+    end
+  end
+
+  def test_index_renders_successfully
+    get admin_mass_actions_path
+    assert_response :success
+    assert_match 'Bulk actions', response.body
+  end
+
+  def test_index_requires_authentication
+    sign_out @admin
+    get admin_mass_actions_path
+    assert_redirected_to new_admin_user_session_path
+  end
+
+  def test_create_with_valid_force_delete_data
+    post_mass_action(stub_result: { ok: ['shop.test', 'airport.test'], fail: ['nonexistant.test'] })
+
+    assert_redirected_to admin_mass_actions_path
+    assert_flash_notice_includes 'shop.test', 'airport.test', 'Failed: ["nonexistant.test"]'
+  end
+
+  def test_create_with_invalid_data_returns_validation_error
+    post_mass_action(file: @invalid_csv_path, stub_result: false)
+
+    assert_redirected_to admin_mass_actions_path
+    assert_includes flash[:notice], 'Dataset integrity validation failed for force_delete'
+  end
+
+  def test_create_with_invalid_action_type
+    post_mass_action(action: 'invalid_action', stub_result: false)
+
+    assert_redirected_to admin_mass_actions_path
+    assert_includes flash[:notice], 'Dataset integrity validation failed for invalid_action'
+  end
+
+  def test_create_without_file_raises_error
+    assert_raises(NoMethodError) do
+      post_mass_action(file: nil)
+    end
+  end
+
+  def test_create_requires_authentication
+    sign_out @admin
+    post_mass_action(stub_result: { ok: ['shop.test'], fail: [] })
+    assert_redirected_to new_admin_user_session_path
+  end
+
+  def test_create_with_partial_success
+    post_mass_action(stub_result: { ok: ['shop.test'], fail: ['airport.test', 'library.test'] })
+
+    assert_redirected_to admin_mass_actions_path
+    assert_flash_notice_includes 'shop.test', 'Failed: ["airport.test", "library.test"]'
+  end
+
+  def test_create_with_all_successful_operations
+    post_mass_action(stub_result: { ok: %w[shop.test airport.test library.test], fail: [] })
+
+    assert_redirected_to admin_mass_actions_path
+    assert_flash_notice_includes 'shop.test', 'airport.test', 'library.test', 'Failed: []'
+  end
+
+  def test_create_with_all_failed_operations
+    post_mass_action(stub_result: { ok: [], fail: %w[shop.test airport.test library.test] })
+
+    assert_redirected_to admin_mass_actions_path
+    assert_flash_notice_includes 'force_delete completed for []', 'Failed: ["shop.test", "airport.test", "library.test"]'
+  end
+
+  def test_create_with_exception_propagates
+    assert_raises(StandardError) do
+      post_mass_action(stub_result: ->(_a, _b) { raise StandardError, 'Unexpected error' })
+    end
+  end
+end