mirror of
https://github.com/jcreek/CosmicClash.git
synced 2026-09-11 08:23:45 +00:00
Josh Creek
51 lines
2.2 KiB
Go
51 lines
2.2 KiB
Go
package domain
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import (
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"testing"
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"time"
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)
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func candidate(id string, rating float64, wait time.Duration, eu, na float64, now time.Time) Candidate {
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return Candidate{TicketID: id, PlayerID: "player-" + id, Rating: rating, EnqueuedAt: now.Add(-wait), PredictedRTT: map[string]float64{"EU": eu, "NA": na}}
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}
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func TestSelectCandidatesNeverCrossesRTTOrMutualRatingCeilings(t *testing.T) {
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now := time.Unix(100000, 0)
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anchor := candidate("a", 1500, 0, 40, 140, now)
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players := []Candidate{
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candidate("b", 1590, 10*time.Second, 45, 40, now),
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candidate("c", 1590, 70*time.Second, 50, 50, now),
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candidate("d", 1800, 70*time.Second, 40, 40, now),
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}
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selection, err := SelectCandidates(anchor, players, 3, now)
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if err != nil { t.Fatal(err) }
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if selection.Region != "EU" || selection.WorstRTT > MaxPlacementRTT { t.Fatalf("bad region/RTT: %+v", selection) }
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if ticketIDs(selection.Players) != "a\x00b\x00c\x00" { t.Fatalf("selected incompatible or non-optimal set: %q", ticketIDs(selection.Players)) }
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}
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func TestSelectCandidatesRequiresAnchorAndUsesDeterministicTieBreak(t *testing.T) {
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now := time.Unix(100000, 0)
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anchor := candidate("anchor", 1500, 60*time.Second, 50, 50, now)
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players := []Candidate{
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candidate("z", 1500, 10*time.Second, 50, 50, now),
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candidate("y", 1500, 10*time.Second, 50, 50, now),
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candidate("x", 1500, 10*time.Second, 50, 50, now),
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}
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selection, err := SelectCandidates(anchor, players, 3, now)
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if err != nil { t.Fatal(err) }
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if !containsTicket(selection.Players, "anchor") { t.Fatal("anchor was omitted") }
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if ticketIDs(selection.Players) != "anchor\x00x\x00y\x00" { t.Fatalf("tie break was not lexical: %q", ticketIDs(selection.Players)) }
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}
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func TestRatingToleranceWideningIsCapped(t *testing.T) {
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if RatingTolerance(29) != 100 || RatingTolerance(30) != 125 { t.Fatal("30-second widening boundary is wrong") }
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if RatingTolerance(1000) != MaxRatingTolerance { t.Fatal("rating tolerance is not capped") }
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}
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func TestSelectCandidatesRejectsNoCommonRegion(t *testing.T) {
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now := time.Unix(100000, 0)
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anchor := candidate("a", 1500, 0, 101, 40, now)
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other := candidate("b", 1500, 0, 40, 101, now)
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if _, err := SelectCandidates(anchor, []Candidate{other}, 2, now); err == nil { t.Fatal("selected players without a common <=100ms region") }
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}
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