turniere-backend/spec/services/match_service_spec.rb

103 lines
3.6 KiB
Ruby

# frozen_string_literal: true
RSpec.describe MatchService do
describe '#generate_matches' do
[
{ team_size: 2 },
{ team_size: 4 },
{ team_size: 8 },
{ team_size: 16 },
{ team_size: 32 },
{ team_size: 64 }
].each do |parameters|
result = parameters[:team_size] / 2
it "generates #{result} matches from #{parameters[:team_size]} teams" do
teams = build_list(:team, parameters[:team_size], tournament: create(:tournament))
generated_matches = MatchService.generate_matches teams
expect(generated_matches.size).to eq(result)
end
end
[
{ team_size: 3, result: 2 },
{ team_size: 5, result: 4 },
{ team_size: 6, result: 4 },
{ team_size: 7, result: 4 },
{ team_size: 12, result: 8 },
{ team_size: 17, result: 16 },
{ team_size: 18, result: 16 },
{ team_size: 19, result: 16 },
{ team_size: 22, result: 16 },
{ team_size: 45, result: 32 },
{ team_size: 87, result: 64 },
{ team_size: 102, result: 64 },
{ team_size: 111, result: 64 },
{ team_size: 124, result: 64 },
{ team_size: 132, result: 128 },
{ team_size: 255, result: 128 }
].each do |parameters|
it "generates #{parameters[:result]} matches from #{parameters[:team_size]} teams" do
teams = build_list(:team, parameters[:team_size], tournament: create(:tournament))
generated_matches = MatchService.generate_matches teams
expect(generated_matches.size).to eq(parameters[:result])
end
end
[
{ team_size: 2 },
{ team_size: 4 },
{ team_size: 8 },
{ team_size: 16 },
{ team_size: 32 },
{ team_size: 64 },
{ team_size: 128 },
{ team_size: 256 }
].each do |parameters|
it "matches the right teams for powers of 2 (#{parameters[:team_size]})" do
teams = build_list(:team, parameters[:team_size], tournament: create(:tournament))
generated_matches = MatchService.generate_matches teams
generated_matches.each_index do |index|
match = generated_matches[index]
first_team = match.match_scores.first.team.name
second_team = match.match_scores.second.team.name
expect(first_team).to eq(teams[2 * index].name)
expect(second_team).to eq(teams[2 * index + 1].name)
end
end
end
# TODO: matches right teams for !powers of 2
[
{ team_size: 3, single_team_matches: 1 },
{ team_size: 5, single_team_matches: 3 },
{ team_size: 6, single_team_matches: 2 },
{ team_size: 17, single_team_matches: 15 },
{ team_size: 34, single_team_matches: 30 },
{ team_size: 65, single_team_matches: 63 },
{ team_size: 138, single_team_matches: 118 },
{ team_size: 276, single_team_matches: 236 }
].each do |parameters|
team_size = parameters[:team_size]
single_team_matches = parameters[:single_team_matches]
it "generates #{single_team_matches} empty matches for #{team_size} teams" do
teams = build_list(:team, team_size, tournament: create(:tournament))
generated_matches = MatchService.generate_matches teams
filtered_matches = generated_matches.select(&:single_team?)
expected_single_team_matches_size = single_team_matches
expect(filtered_matches.size).to eq(expected_single_team_matches_size)
end
end
it 'generates no matches for 0 teams' do
expect(MatchService.generate_matches([])). to eq(nil)
end
it 'generates no matches for 1 team' do
expect(MatchService.generate_matches(build_list(:team, 1))). to eq(nil)
end
end
end