frankfurter/spec/provider/adapters/nrb_spec.rb
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2026-05-21 01:38:14 -06:00

84 lines
2.6 KiB
Ruby

# frozen_string_literal: true
require_relative "../../helper"
require "provider/adapters/nrb"
class Provider < Sequel::Model(:providers)
module Adapters
describe NRB do
before do
VCR.insert_cassette("nrb", match_requests_on: [:method, :host])
end
after { VCR.eject_cassette }
let(:adapter) { NRB.new }
it "fetches rates with date range" do
dataset = adapter.fetch(after: Date.new(2026, 4, 1), upto: Date.new(2026, 4, 5))
_(dataset).wont_be_empty
end
it "fetches multiple currencies per date" do
dataset = adapter.fetch(after: Date.new(2026, 4, 1), upto: Date.new(2026, 4, 5))
dates = dataset.map { |r| r[:date] }.uniq
sample = dataset.select { |r| r[:date] == dates.first }
_(sample.size).must_equal(22)
end
it "parses rates from payload" do
payload = [
{
"date" => "2026-04-01",
"rates" => [
{ "currency" => { "iso3" => "USD", "name" => "U.S. Dollar", "unit" => 1 }, "buy" => "151.44", "sell" => "152.04" },
{ "currency" => { "iso3" => "EUR", "name" => "European Euro", "unit" => 1 }, "buy" => "173.69", "sell" => "174.38" },
],
},
]
records = adapter.parse(payload)
_(records.length).must_equal(2)
_(records.first[:base]).must_equal("USD")
_(records.first[:quote]).must_equal("NPR")
_(records.first[:rate]).must_be_close_to(151.74, 0.01)
_(records.first[:date]).must_equal(Date.new(2026, 4, 1))
end
it "skips malformed dates" do
payload = [
{ "date" => "2020-06.25", "rates" => [{ "currency" => { "iso3" => "USD", "unit" => 1 }, "buy" => "133.5", "sell" => "134.0" }] },
]
records = adapter.parse(payload)
_(records).must_be_empty
end
it "normalizes rates by unit" do
payload = [
{
"date" => "2026-04-01",
"rates" => [
{ "currency" => { "iso3" => "JPY", "name" => "Japanese Yen", "unit" => 10 }, "buy" => "9.49", "sell" => "9.53" },
{ "currency" => { "iso3" => "KRW", "name" => "South Korean Won", "unit" => 100 }, "buy" => "9.92", "sell" => "9.96" },
],
},
]
records = adapter.parse(payload)
jpy = records.find { |r| r[:base] == "JPY" }
krw = records.find { |r| r[:base] == "KRW" }
# JPY: (9.49 + 9.53) / 2.0 / 10 = 0.951
_(jpy[:rate]).must_be_close_to(0.951, 0.001)
# KRW: (9.92 + 9.96) / 2.0 / 100 = 0.0994
_(krw[:rate]).must_be_close_to(0.0994, 0.0001)
end
end
end
end