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95 lines
2.6 KiB
Scheme
95 lines
2.6 KiB
Scheme
;;; Copyright 2022 Edward L. Platt
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;;;
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;;; Licensed under the Apache License, Version 2.0 (the "License");
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;;; you may not use this file except in compliance with the License.
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;;; You may obtain a copy of the License at
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;;;
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;;; http://www.apache.org/licenses/LICENSE-2.0
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;;;
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;;; Unless required by applicable law or agreed to in writing, software
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;;; distributed under the License is distributed on an "AS IS" BASIS,
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;;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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;;; See the License for the specific language governing permissions and
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;;; limitations under the License.
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(define-module (tests test-preference)
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#:use-module (srfi srfi-64)
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#:use-module (goblins)
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#:use-module (goblins vrun)
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#:use-module (goblins actor-lib methods)
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#:use-module (deliberate))
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(define a-vat (spawn-vat))
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(define-vat-run a-run a-vat)
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(test-begin "test-deliberate")
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;; Tests for ^deliberation-info
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(define info (a-run (spawn ^deliberation-info "Power Generator")))
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(test-equal "Power Generator"
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(a-run ($ info 'topic)))
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(a-run ($ info 'set-topic "Energy"))
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(test-equal "Energy"
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(a-run ($ info 'topic)))
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;; Tests for ^deliberation
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(define delib (a-run (spawn ^deliberation "Power Generator")))
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(test-equal "Power Generator"
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(a-run ($ delib 'topic)))
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;; Tests for ^ranked-choice-vote
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(define vote (a-run ($ delib 'add-vote "What type of generator?")))
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(a-run ($ delib 'votes))
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(a-run ($ vote 'ballots))
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;; Add alternatives
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(a-run ($ vote 'add-alternative "solar"))
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(a-run ($ vote 'add-alternative "wind"))
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(a-run ($ vote 'add-alternative "hydro"))
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;; Tests for ^ranked-ballot
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(define ballot (a-run ($ vote 'add-ballot)))
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(a-run ($ vote 'ballots))
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(a-run ($ ballot 'alternatives))
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(a-run ($ ballot 'question))
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;; Example ranking functions
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(define (f-wind-solar-hydro alts) '(3 1 2))
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(define (f-hydro-solar-wind alts) '(1 3 2))
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(define (f-solar-wind-hydro alts) '(3 2 1))
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;; Cast a single vote
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(a-run ($ ballot 'update-vote f-wind-solar-hydro))
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(test-equal '("wind" "solar" "hydro")
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(a-run ($ ballot 'ranking)))
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;; Add more votes to test voting methods
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(let ((ballot (a-run ($ vote 'add-ballot))))
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(a-run ($ ballot 'update-vote f-wind-solar-hydro)))
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(let ((ballot (a-run ($ vote 'add-ballot))))
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(a-run ($ ballot 'update-vote f-hydro-solar-wind)))
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(let ((ballot (a-run ($ vote 'add-ballot))))
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(a-run ($ ballot 'update-vote f-hydro-solar-wind)))
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(let ((ballot (a-run ($ vote 'add-ballot))))
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(a-run ($ ballot 'update-vote f-solar-wind-hydro)))
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;; Test instant-runoff
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(test-equal '("wind")
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(a-run ($ vote 'irv-winner)))
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;; Test Borda method
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(test-equal '("solar")
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(a-run ($ vote 'borda-winner)))
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(test-end "test-deliberate")
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