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45 lines
1.1 KiB
Ruby
45 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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require_relative 'helper'
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require 'roundable'
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describe Roundable do
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include Roundable
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it 'rounds values over 5,000 to zero decimal places' do
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_(round(5000.123456)).must_equal 5000
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end
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it 'rounds values over 80 and below 5,000 to two decimal places' do
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_(round(80.123456)).must_equal 80.12
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_(round(4999.123456)).must_equal 4999.12
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end
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it 'rounds values over 20 and below 80 to three decimal places' do
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_(round(79.123456)).must_equal 79.123
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_(round(20.123456)).must_equal 20.123
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end
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it 'rounds values over 1 and below 20 to four decimal places' do
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_(round(19.123456)).must_equal 19.1235
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_(round(1.123456)).must_equal 1.1235
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end
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it 'rounds values below 1 to five decimal places' do
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_(round(0.123456)).must_equal 0.12346
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end
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it 'rounds values below 0.0001 to six decimal places' do
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_(round(0.0000655)).must_equal 0.000066
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end
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it 'conforms to ECB conventions' do
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skip "We don't conform ¯\_(ツ)_/¯"
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require 'day'
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rates = Day.all.sample.rates.to_a
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rates.shuffle.each do |_currency, rate|
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_(round(rate)).must_equal rate
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end
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end
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end
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