59 lines
1.8 KiB
Ruby
59 lines
1.8 KiB
Ruby
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# frozen_string_literal: true
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require_relative "../../helper"
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require "provider/adapters/nbp"
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class Provider < Sequel::Model(:providers)
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module Adapters
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describe NBP do
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before do
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VCR.insert_cassette("nbp", match_requests_on: [:method, :uri])
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end
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after { VCR.eject_cassette }
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let(:adapter) { NBP.new }
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it "fetches rates since a date" do
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dataset = adapter.fetch(after: Date.new(2026, 3, 1), upto: Date.new(2026, 3, 5))
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_(dataset).wont_be_empty
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end
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it "fetches multiple currencies per date" do
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dataset = adapter.fetch(after: Date.new(2026, 3, 1), upto: Date.new(2026, 3, 5))
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dates = dataset.map { |r| r[:date] }.uniq
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sample = dataset.select { |r| r[:date] == dates.first }
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_(sample.size).must_be(:>, 1)
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end
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it "includes Table B currencies" do
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dataset = adapter.fetch(after: Date.new(2026, 3, 1), upto: Date.new(2026, 3, 5))
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bases = dataset.map { |r| r[:base] }.uniq
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_(bases).must_include("ALL")
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end
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it "fetches XAU against PLN" do
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dataset = adapter.fetch(after: Date.new(2026, 3, 1), upto: Date.new(2026, 3, 5))
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gold = dataset.select { |r| r[:base] == "XAU" }
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_(gold).wont_be_empty
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gold.each { |r| _(r[:quote]).must_equal("PLN") }
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end
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it "normalizes gold rates from PLN-per-gram to PLN-per-troy-ounce" do
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json = '[{"data":"2026-04-25","cena":407.18}]'
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records = adapter.parse_gold(json)
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_(records.size).must_equal(1)
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_(records.first[:base]).must_equal("XAU")
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_(records.first[:quote]).must_equal("PLN")
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_(records.first[:date]).must_equal(Date.new(2026, 4, 25))
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_(records.first[:rate]).must_be_close_to(407.18 * Adapter::GRAMS_PER_TROY_OUNCE, 0.0001)
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end
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end
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end
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end
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