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Maybe/test/models/account/chartable_test.rb

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require "test_helper"
class Account::ChartableTest < ActiveSupport::TestCase
test "generates gapfilled balance series" do
account = accounts(:depository)
account.balances.delete_all
account.balances.create!(date: 20.days.ago.to_date, balance: 5000, currency: "USD")
account.balances.create!(date: 10.days.ago.to_date, balance: 5000, currency: "USD")
period = Period.last_30_days
series = account.balance_series(period: period)
assert_equal period.days, series.values.count
assert_equal 0, series.values.first.trend.current.amount
assert_equal 5000, series.values.find { |v| v.date == 20.days.ago.to_date }.trend.current.amount
assert_equal 5000, series.values.find { |v| v.date == 10.days.ago.to_date }.trend.current.amount
assert_equal 5000, series.values.last.trend.current.amount
end
test "combines assets and liabilities for multiple accounts properly" do
family = families(:empty)
asset = family.accounts.create!(name: "Asset", currency: "USD", balance: 5000, accountable: Depository.new)
liability = family.accounts.create!(name: "Liability", currency: "USD", balance: 2000, accountable: CreditCard.new)
asset.balances.create!(date: 20.days.ago.to_date, balance: 4000, currency: "USD")
asset.balances.create!(date: 10.days.ago.to_date, balance: 5000, currency: "USD")
liability.balances.create!(date: 20.days.ago.to_date, balance: 1000, currency: "USD")
liability.balances.create!(date: 10.days.ago.to_date, balance: 1500, currency: "USD")
series = family.accounts.balance_series(currency: "USD", period: Period.last_30_days)
assert_equal 0, series.values.first.trend.current.amount
assert_equal 3000, series.values.find { |v| v.date == 20.days.ago.to_date }.trend.current.amount
assert_equal 3500, series.values.last.trend.current.amount
end
end