177 lines
4.8 KiB
PHP
177 lines
4.8 KiB
PHP
<?php
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declare(strict_types=1);
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namespace CondorcetPHP\Condorcet\Tests\Algo\Methods\RankedPairs;
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use CondorcetPHP\Condorcet\Election;
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use PHPUnit\Framework\TestCase;
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class PairwiseTest extends TestCase
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{
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private readonly Election $election1;
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protected function setUp(): void
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{
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$this->election1 = new Election;
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$this->election1->addCandidate('A');
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$this->election1->addCandidate('B');
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$this->election1->addCandidate('C');
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$this->election1->addVote('A>B>C');
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}
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public function testPairwiseOffsetGet(): void
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{
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$pairwise = $this->election1->getPairwise();
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self::assertIsArray($pairwise[1]);
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self::assertNull($pairwise[42]);
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}
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public function testExplicitPairwise(): void
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{
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self::assertSame(
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[
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'A' => [
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'win' => [
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'B' => 1,
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'C' => 1,
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],
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'null' => [
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'B' => 0,
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'C' => 0,
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],
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'lose' => [
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'B' => 0,
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'C' => 0,
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],
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],
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'B' => [
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'win' => [
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'A' => 0,
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'C' => 1,
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],
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'null' => [
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'A' => 0,
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'C' => 0,
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],
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'lose' => [
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'A' => 1,
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'C' => 0,
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],
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],
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'C' => [
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'win' => [
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'A' => 0,
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'B' => 0,
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],
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'null' => [
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'A' => 0,
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'B' => 0,
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],
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'lose' => [
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'A' => 1,
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'B' => 1,
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],
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],
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],
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$this->election1->getPairwise()->getExplicitPairwise()
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);
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}
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public function testVotesWeight(): void
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{
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$electionOff = new Election;
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$electionOff->addCandidate('A');
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$electionOff->addCandidate('B');
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$electionOff->addCandidate('C');
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$electionOff->addCandidate('D');
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$electionOff->addVote('A>B>C=D ^3');
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$electionOff->addVote('A>B>C=D ^4');
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$electionOn = clone $electionOff;
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$electionOn->allowsVoteWeight(true);
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self::assertNotSame($electionOff->getExplicitPairwise(), $electionOn->getExplicitPairwise());
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self::assertSame(
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[
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'A' => [
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'win' => [
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'B' => 7,
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'C' => 7,
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'D' => 7,
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],
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'null' => [
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'B' => 0,
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'C' => 0,
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'D' => 0,
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],
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'lose' => [
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'B' => 0,
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'C' => 0,
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'D' => 0,
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],
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],
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'B' => [
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'win' => [
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'A' => 0,
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'C' => 7,
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'D' => 7,
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],
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'null' => [
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'A' => 0,
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'C' => 0,
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'D' => 0,
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],
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'lose' => [
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'A' => 7,
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'C' => 0,
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'D' => 0,
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],
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],
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'C' => [
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'win' => [
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'A' => 0,
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'B' => 0,
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'D' => 0,
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],
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'null' => [
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'A' => 0,
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'B' => 0,
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'D' => 7,
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],
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'lose' => [
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'A' => 7,
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'B' => 7,
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'D' => 0,
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],
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],
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'D' => [
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'win' => [
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'A' => 0,
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'B' => 0,
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'C' => 0,
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],
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'null' => [
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'A' => 0,
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'B' => 0,
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'C' => 7,
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],
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'lose' => [
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'A' => 7,
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'B' => 7,
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'C' => 0,
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],
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],
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],
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$electionOn->getPairwise()->getExplicitPairwise()
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);
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}
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}
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