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91 lines
4.2 KiB
Ruby
91 lines
4.2 KiB
Ruby
# frozen_string_literal: true
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require 'rails_helper'
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RSpec.describe CountriesAndCities do
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describe '#call' do
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subject(:countries_and_cities) { described_class.new(points).call }
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# Test with a set of points in the same city (Kerpen) but different countries,
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# with sufficient points to demonstrate the city grouping logic
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let(:timestamp) { DateTime.new(2021, 1, 1, 0, 0, 0) }
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let(:points) do
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[
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp:),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 10.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 20.minutes),
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create(:point, city: 'Kerpen', country: 'Germany', timestamp: timestamp + 30.minutes),
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create(:point, city: 'Kerpen', country: 'Germany', timestamp: timestamp + 40.minutes),
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create(:point, city: 'Kerpen', country: 'Germany', timestamp: timestamp + 50.minutes),
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create(:point, city: 'Kerpen', country: 'Germany', timestamp: timestamp + 60.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 70.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 80.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 90.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 100.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 110.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 120.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 130.minutes),
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create(:point, city: 'Kerpen', country: 'Belgium', timestamp: timestamp + 140.minutes)
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]
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end
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context 'when MIN_MINUTES_SPENT_IN_CITY is 60 (in minutes)' do
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before do
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stub_const('MIN_MINUTES_SPENT_IN_CITY', 60)
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end
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context 'when user stayed in the city for more than 1 hour' do
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it 'returns countries and cities' do
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# Only Belgium has cities where the user stayed long enough
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# Germany is excluded because the consecutive points in Kerpen, Germany
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# span only 30 minutes (less than MIN_MINUTES_SPENT_IN_CITY)
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expect(countries_and_cities).to contain_exactly(
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an_object_having_attributes(
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country: 'Belgium',
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cities: contain_exactly(
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an_object_having_attributes(
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city: 'Kerpen',
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points: 11,
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stayed_for: 140
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)
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)
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)
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)
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end
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end
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context 'when user stayed in the city for less than 1 hour in some cities but more in others' do
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let(:points) do
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[
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create(:point, city: 'Berlin', country: 'Germany', timestamp:),
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create(:point, city: 'Berlin', country: 'Germany', timestamp: timestamp + 10.minutes),
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create(:point, city: 'Berlin', country: 'Germany', timestamp: timestamp + 20.minutes),
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create(:point, city: 'Brugges', country: 'Belgium', timestamp: timestamp + 80.minutes),
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create(:point, city: 'Brugges', country: 'Belgium', timestamp: timestamp + 90.minutes),
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create(:point, city: 'Berlin', country: 'Germany', timestamp: timestamp + 100.minutes),
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create(:point, city: 'Brugges', country: 'Belgium', timestamp: timestamp + 110.minutes)
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]
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end
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it 'returns only countries with cities where the user stayed long enough' do
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# Only Germany is included because Berlin points span 100 minutes
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# Belgium is excluded because Brugges points are in separate visits
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# spanning only 10 and 20 minutes each
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expect(countries_and_cities).to contain_exactly(
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an_object_having_attributes(
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country: 'Germany',
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cities: contain_exactly(
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an_object_having_attributes(
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city: 'Berlin',
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points: 4,
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stayed_for: 100
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)
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)
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)
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)
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end
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end
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end
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end
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end
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