a1439d0790
Note we're excluding a few files: * Configuration files that weren't generated by us * Migration files that weren't generated by us * The Gemfile, since it includes an important comment that must be on the same line as the gem declaration * The Budget::Stats class, since the heading statistics are a mess and having shorter lines would require a lot of refactoring
105 lines
5.3 KiB
Ruby
105 lines
5.3 KiB
Ruby
require "rails_helper"
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describe Budget::Result do
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describe "calculate_winners" do
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let(:budget) { create(:budget) }
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let(:heading) { create(:budget_heading, budget: budget, price: 1000) }
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context "When there are no winners" do
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it "assigns investments ordered by ballot lines until budget is met" do
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create(:budget_investment, :selected, heading: heading, price: 100, ballot_lines_count: 50)
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create(:budget_investment, :selected, heading: heading, price: 300, ballot_lines_count: 80)
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create(:budget_investment, :selected, heading: heading, price: 200, ballot_lines_count: 90)
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create(:budget_investment, :selected, heading: heading, price: 500, ballot_lines_count: 60)
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Budget::Result.new(budget, heading).calculate_winners
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expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([90, 80, 60])
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end
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it "selects cheaper investments when running out of budget" do
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create(:budget_investment, :selected, heading: heading, price: 800, ballot_lines_count: 90)
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create(:budget_investment, :selected, heading: heading, price: 300, ballot_lines_count: 80)
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create(:budget_investment, :selected, heading: heading, price: 200, ballot_lines_count: 60)
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Budget::Result.new(budget, heading).calculate_winners
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expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([90, 60])
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end
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it "excludes incompatible investments" do
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create(:budget_investment, :selected, heading: heading, price: 200, ballot_lines_count: 90)
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create(:budget_investment, :selected, heading: heading, price: 300, ballot_lines_count: 80)
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create(:budget_investment, :incompatible, heading: heading, price: 500, ballot_lines_count: 70)
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create(:budget_investment, :selected, heading: heading, price: 500, ballot_lines_count: 60)
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create(:budget_investment, :selected, heading: heading, price: 100, ballot_lines_count: 50)
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Budget::Result.new(budget, heading).calculate_winners
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expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([90, 80, 60])
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end
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end
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context "When there are winners" do
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it "removes winners and recalculates" do
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create(:budget_investment, :selected, heading: heading, price: 200, ballot_lines_count: 90)
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create(:budget_investment, :winner, heading: heading, price: 300, ballot_lines_count: 80)
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create(:budget_investment, :winner, :incompatible, heading: heading,
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price: 500,
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ballot_lines_count: 70)
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create(:budget_investment, :winner, heading: heading, price: 500, ballot_lines_count: 60)
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create(:budget_investment, :winner, heading: heading, price: 100, ballot_lines_count: 50)
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Budget::Result.new(budget, heading).calculate_winners
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expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([90, 80, 60])
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end
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end
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context "When a winner is flagged as incompatible" do
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it "recalculates winners leaving it out" do
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wrong_win = create(:budget_investment, :winner, heading: heading, price: 200, ballot_lines_count: 90)
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create(:budget_investment, :winner, heading: heading, price: 300, ballot_lines_count: 80)
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create(:budget_investment, :winner, heading: heading, price: 500, ballot_lines_count: 70)
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create(:budget_investment, :winner, heading: heading, price: 200, ballot_lines_count: 60)
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create(:budget_investment, :winner, heading: heading, price: 100, ballot_lines_count: 50)
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wrong_win.update!(incompatible: true)
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expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([80, 70, 60])
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end
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end
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context "When an incompatible is flagged as compatible again" do
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it "recalculates winners taking it in consideration" do
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miss = create(:budget_investment, :incompatible, heading: heading, price: 200, ballot_lines_count: 90)
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create(:budget_investment, :winner, heading: heading, price: 300, ballot_lines_count: 80)
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create(:budget_investment, :winner, heading: heading, price: 500, ballot_lines_count: 70)
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create(:budget_investment, :winner, heading: heading, price: 200, ballot_lines_count: 60)
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create(:budget_investment, :winner, heading: heading, price: 100, ballot_lines_count: 50)
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miss.update!(incompatible: false)
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expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([90, 80, 70])
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end
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end
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context "budget with the hide money option" do
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before { budget.update!(voting_style: "approval", hide_money: true) }
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it "does not take the price into account" do
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create(:budget_investment, :selected, heading: heading, price: 100, ballot_lines_count: 50)
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create(:budget_investment, :incompatible, heading: heading, price: 300, ballot_lines_count: 80)
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create(:budget_investment, :selected, heading: heading, price: 800, ballot_lines_count: 70)
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create(:budget_investment, :selected, heading: heading, price: 500, ballot_lines_count: 60)
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Budget::Result.new(budget, heading).calculate_winners
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expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([70, 60, 50])
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end
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end
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end
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end
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