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Merge pull request #3726 from consul/test_calculate_winner

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Add more tests to calculate winners
This commit is contained in:
Javier Martín
2019-09-25 16:05:38 +02:00
committed by GitHub
parent 5463753553 1bb53b11fb
commit edc396a8e2
1 changed files with 23 additions and 2 deletions
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25
spec/models/budget/result_spec.rb
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@@ -6,8 +6,29 @@ describe Budget::Result do
let(:budget) { create(:budget) }
let(:heading) { create(:budget_heading, budget: budget, price: 1000) }
context "When there is no winners" do
it "calculates the correct winner set" do
context "When there are no winners" do
it "assigns investments ordered by ballot lines until budget is met" do
create(:budget_investment, :selected, heading: heading, price: 100, ballot_lines_count: 500)
create(:budget_investment, :selected, heading: heading, price: 300, ballot_lines_count: 800)
create(:budget_investment, :selected, heading: heading, price: 200, ballot_lines_count: 900)
create(:budget_investment, :selected, heading: heading, price: 500, ballot_lines_count: 600)
Budget::Result.new(budget, heading).calculate_winners
expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([900, 800, 600])
end
it "selects cheaper investments when running out of budget" do
create(:budget_investment, :selected, heading: heading, price: 800, ballot_lines_count: 900)
create(:budget_investment, :selected, heading: heading, price: 300, ballot_lines_count: 800)
create(:budget_investment, :selected, heading: heading, price: 200, ballot_lines_count: 600)
Budget::Result.new(budget, heading).calculate_winners
expect(heading.investments.winners.pluck(:ballot_lines_count)).to match_array([900, 600])
end
it "excludes incompatible investments" do
investment1 = create(:budget_investment, :selected, heading: heading, price: 200, ballot_lines_count: 900, winner: false)
investment2 = create(:budget_investment, :selected, heading: heading, price: 300, ballot_lines_count: 800, winner: false)
investment3 = create(:budget_investment, :incompatible, heading: heading, price: 500, ballot_lines_count: 700, winner: false)