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78 lines
2.6 KiB
Ruby
78 lines
2.6 KiB
Ruby
require "test_helper"
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class ExchangeRatePairTest < ActiveSupport::TestCase
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test "for_pair creates a new pair if none exists" do
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ExchangeRatePair.delete_all
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pair = ExchangeRatePair.for_pair(from: "USD", to: "EUR")
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assert_equal "USD", pair.from_currency
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assert_equal "EUR", pair.to_currency
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assert_nil pair.first_provider_rate_on
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end
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test "for_pair returns existing pair idempotently" do
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ExchangeRatePair.delete_all
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pair1 = ExchangeRatePair.for_pair(from: "USD", to: "EUR")
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pair2 = ExchangeRatePair.for_pair(from: "USD", to: "EUR")
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assert_equal pair1.id, pair2.id
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end
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test "for_pair auto-resets clamp when provider changes" do
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ExchangeRatePair.delete_all
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original_provider = Setting.exchange_rate_provider
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begin
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Setting.exchange_rate_provider = "twelve_data"
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ExchangeRatePair.create!(
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from_currency: "USD",
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to_currency: "EUR",
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first_provider_rate_on: 1.year.ago.to_date,
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provider_name: "twelve_data"
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)
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refreshed = ExchangeRatePair.for_pair(from: "USD", to: "EUR", provider_name: "yahoo_finance")
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assert_nil refreshed.first_provider_rate_on
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assert_equal "yahoo_finance", refreshed.provider_name
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ensure
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Setting.exchange_rate_provider = original_provider
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end
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end
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test "record_first_provider_rate_on sets date on NULL" do
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ExchangeRatePair.delete_all
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ExchangeRatePair.for_pair(from: "USD", to: "EUR")
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ExchangeRatePair.record_first_provider_rate_on(from: "USD", to: "EUR", date: 6.months.ago.to_date)
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pair = ExchangeRatePair.find_by!(from_currency: "USD", to_currency: "EUR")
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assert_equal 6.months.ago.to_date, pair.first_provider_rate_on
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end
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test "record_first_provider_rate_on moves earlier but not forward" do
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ExchangeRatePair.delete_all
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original_provider = Setting.exchange_rate_provider
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begin
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Setting.exchange_rate_provider = "twelve_data"
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ExchangeRatePair.create!(
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from_currency: "USD",
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to_currency: "EUR",
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first_provider_rate_on: 6.months.ago.to_date,
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provider_name: "twelve_data"
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)
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ExchangeRatePair.record_first_provider_rate_on(from: "USD", to: "EUR", date: 1.year.ago.to_date)
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pair = ExchangeRatePair.find_by!(from_currency: "USD", to_currency: "EUR")
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assert_equal 1.year.ago.to_date, pair.first_provider_rate_on
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ExchangeRatePair.record_first_provider_rate_on(from: "USD", to: "EUR", date: 3.months.ago.to_date)
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pair.reload
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assert_equal 1.year.ago.to_date, pair.first_provider_rate_on
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ensure
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Setting.exchange_rate_provider = original_provider
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end
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end
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end
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