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# frozen_string_literal: true
RSpec.shared_examples 'namespace visits model' do
it { is_expected.to validate_presence_of(:entity_id) }
it { is_expected.to validate_presence_of(:user_id) }
it { is_expected.to validate_presence_of(:visited_at) }
describe '#visited_around?' do
before do
described_class.create!(entity_id: entity.id, user_id: user.id, visited_at: base_time)
end
context 'when the checked time matches a recent visit' do
[-15.minutes, 15.minutes].each do |time_diff|
it 'returns true' do
expect(described_class.visited_around?(entity_id: entity.id, user_id: user.id,
time: base_time + time_diff)).to be(true)
end
end
end
context 'when the checked time does not match a recent visit' do
[-16.minutes, 16.minutes].each do |time_diff|
it 'returns false' do
expect(described_class.visited_around?(entity_id: entity.id, user_id: user.id,
time: base_time + time_diff)).to be(false)
end
end
end
end
describe '#frecent_visits_scores' do
def frecent_visits_scores_to_array(visits)
visits.map { |visit| [visit["entity_id"], visit["score"]] }
end
context 'when there is lots of data' do
before do
create_visit_records
end
it 'returns the frecent items, sorted by their frecency score' do
expect(frecent_visits_scores_to_array(described_class.frecent_visits_scores(user_id: user.id,
limit: 10))).to eq([[2, 31], [1, 30], [3, 28], [6, 6], [7, 6], [8, 6], [4, 6], [5, 6]])
end
it 'limits the amount of returned entries' do
expect(frecent_visits_scores_to_array(described_class.frecent_visits_scores(user_id: user.id,
limit: 2))).to eq([
[2, 31], [1, 30]
])
end
end
context 'when there is few data' do
before do
[
# Multiplier: 4
[1, Time.current],
# Multiplier: 3
[2, 2.weeks.ago],
[3, 2.weeks.ago],
# Multiplier: 2
[1, 3.weeks.ago],
[1, 3.weeks.ago],
# Multiplier: 1
[2, 5.weeks.ago]
].each do |id, datetime|
described_class.create!(entity_id: id, user_id: user.id, visited_at: datetime)
end
end
it 'returns the frecent items, sorted by their frecency score' do
expect(frecent_visits_scores_to_array(described_class.frecent_visits_scores(user_id: user.id,
limit: 5))).to eq([
[1, 8], # Entity 1 gets a score of (1 * 4) + (2 * 2) = 8
[2, 4], # Entity 2 gets a score of (1 * 3) + (1 * 1) = 4
[3, 3] # Entity 3 gets a score of 1 * 3 = 3
])
end
end
end
private
# rubocop: disable Metrics/AbcSize -- Despite being long, this method is quite straightforward. Splitting it in smaller chunks would likely harm readability more than anything.
def create_visit_records
[
[1, Time.current],
[2, 1.week.ago],
[2, 1.week.ago],
[2, 2.weeks.ago],
[3, 2.weeks.ago],
[3, 2.weeks.ago],
[4, 2.weeks.ago],
[5, 2.weeks.ago],
[6, 2.weeks.ago],
[7, 2.weeks.ago],
[8, 2.weeks.ago],
[1, 3.weeks.ago],
[1, 3.weeks.ago],
[3, 3.weeks.ago],
[3, 3.weeks.ago],
[1, 4.weeks.ago],
[2, 4.weeks.ago],
[2, 4.weeks.ago],
[3, 7.weeks.ago],
[3, 7.weeks.ago],
[1, 8.weeks.ago],
[1, 8.weeks.ago],
[1, 8.weeks.ago],
[1, 8.weeks.ago],
[2, 9.weeks.ago],
[2, 9.weeks.ago],
[2, 9.weeks.ago]
].each do |id, datetime|
described_class.create!(entity_id: id, user_id: user.id, visited_at: datetime)
end
end
# rubocop: enable Metrics/AbcSize
end
|
