Maybe/test/controllers/transactions_controller_test.rb

require "test_helper"

class TransactionsControllerTest < ActionDispatch::IntegrationTest
  setup do
    sign_in @user = users(:family_admin)
    @transaction_entry = account_entries(:checking_one)
    @recent_transaction_entries = @user.family.entries.account_transactions.reverse_chronological.limit(20).to_a
  end

  test "should get new" do
    get new_transaction_url
    assert_response :success
  end

  test "prefills account_id" do
    get new_transaction_url(account_id: @transaction_entry.account.id)
    assert_response :success
    assert_select "option[selected][value='#{@transaction_entry.account.id}']"
  end

  test "should create transaction" do
    account = @user.family.accounts.first
    entry_params = {
      account_id: account.id,
      amount: 100.45,
      currency: "USD",
      date: Date.current,
      name: "Test transaction",
      entryable_type: "Account::Transaction",
      entryable_attributes: { category_id: categories(:food_and_drink).id }
    }

    assert_difference [ "Account::Entry.count", "Account::Transaction.count" ], 1 do
      post transactions_url, params: { account_entry: entry_params }
    end

    assert_equal entry_params[:amount].to_d, Account::Transaction.order(created_at: :desc).first.entry.amount
    assert_equal "New transaction created successfully", flash[:notice]
    assert_enqueued_with(job: AccountSyncJob)
    assert_redirected_to account_url(account)
  end

  test "expenses are positive" do
    assert_difference([ "Account::Transaction.count", "Account::Entry.count" ], 1) do
      post transactions_url, params: {
        account_entry: {
          nature: "expense",
          account_id: @transaction_entry.account_id,
          amount: @transaction_entry.amount,
          currency: @transaction_entry.currency,
          date: @transaction_entry.date,
          name: @transaction_entry.name,
          entryable_type: "Account::Transaction",
          entryable_attributes: {}
        }
      }
    end

    created_entry = Account::Entry.order(created_at: :desc).first

    assert_redirected_to account_url(@transaction_entry.account)
    assert created_entry.amount.positive?, "Amount should be positive"
  end

  test "incomes are negative" do
    assert_difference("Account::Transaction.count") do
      post transactions_url, params: {
        account_entry: {
          nature: "income",
          account_id: @transaction_entry.account_id,
          amount: @transaction_entry.amount,
          currency: @transaction_entry.currency,
          date: @transaction_entry.date,
          name: @transaction_entry.name,
          entryable_type: "Account::Transaction",
          entryable_attributes: { category_id: categories(:food_and_drink).id }
        }
      }
    end

    created_entry = Account::Entry.order(created_at: :desc).first

    assert_redirected_to account_url(@transaction_entry.account)
    assert created_entry.amount.negative?, "Amount should be negative"
  end

  test "should get paginated index with most recent transactions first" do
    get transactions_url(per_page: 10)
    assert_response :success

    @recent_transaction_entries.first(10).each do |transaction|
      assert_dom "#" + dom_id(transaction), count: 1
    end
  end

  test "transaction count represents filtered total" do
    get transactions_url(per_page: 10)
    assert_dom "#total-transactions", count: 1, text: @user.family.entries.account_transactions.select { |t| t.currency == "USD" }.count.to_s

    new_transaction = @user.family.accounts.first.entries.create! \
      entryable: Account::Transaction.new,
      name: "Transaction to search for",
      date: Date.current,
      amount: 0,
      currency: "USD"

    get transactions_url(q: { search: new_transaction.name })

    # Only finds 1 transaction that matches filter
    assert_dom "#" + dom_id(new_transaction), count: 1
    assert_dom "#total-transactions", count: 1, text: "1"
  end

  test "can navigate to paginated result" do
    get transactions_url(page: 2, per_page: 10)
    assert_response :success

    visible_transaction_entries = @recent_transaction_entries[10, 10].reject { |e| e.transfer.present? }

    visible_transaction_entries.each do |transaction|
      assert_dom "#" + dom_id(transaction), count: 1
    end
  end

  test "loads last page when page is out of range" do
    user_oldest_transaction_entry = @user.family.entries.account_transactions.chronological.first
    get transactions_url(page: 9999999999)

    assert_response :success
    assert_dom "#" + dom_id(user_oldest_transaction_entry), count: 1
  end

  test "can destroy many transactions at once" do
    delete_count = 10
    assert_difference([ "Account::Transaction.count", "Account::Entry.count" ], -delete_count) do
      post bulk_delete_transactions_url, params: {
        bulk_delete: {
          entry_ids: @recent_transaction_entries.first(delete_count).pluck(:id)
        }
      }
    end

    assert_redirected_to transactions_url
    assert_equal "10 transactions deleted", flash[:notice]
  end

  test "can update many transactions at once" do
    transactions = @user.family.entries.account_transactions.reverse_chronological.limit(20)

    transactions.each do |transaction|
      transaction.update! \
        date: Date.current,
        entryable_attributes: {
          id: transaction.account_transaction.id,
          category_id: Category.first.id,
          merchant_id: Merchant.first.id,
          notes: "Starting note"
        }
    end

    assert_difference [ "Account::Entry.count", "Account::Transaction.count" ], 0 do
      post bulk_update_transactions_url, params: {
        bulk_update: {
          entry_ids: transactions.map(&:id),
          date: 1.day.ago.to_date,
          category_id: Category.second.id,
          merchant_id: Merchant.second.id,
          notes: "Updated note"
        }
      }
    end

    assert_redirected_to transactions_url
    assert_equal "#{transactions.count} transactions updated", flash[:notice]

    transactions.reload

    transactions.each do |transaction|
      assert_equal 1.day.ago.to_date, transaction.date
      assert_equal Category.second, transaction.account_transaction.category
      assert_equal Merchant.second, transaction.account_transaction.merchant
      assert_equal "Updated note", transaction.account_transaction.notes
    end
  end
end